Montana
On Saturday , 1 of 7 Montana cities had a day more extreme than any in 10 years or more. In the county averages of Tuesday 29 September 2026, none of 56 Montana counties did.
Cities
| City | Day | High | Low | Precipitation | The day | Month so far, rank | Years compared |
|---|---|---|---|---|---|---|---|
| Billings, MT Notable | 67°F | 52°F | 0.00 in | the warmest 3 October night since 2011 | 21 | 93 | |
| Deer Lodge, MT | 79°F | 40°F | 0.04 in | the warmest 31 August since 2025 | 32 | 96 | |
| Glasgow, MT | 66°F | 45°F | 0.00 in | the warmest 3 October since 2025 | 49 | 130 | |
| Great Falls, MT | 71°F | 38°F | 0.00 in | the warmest 3 October since 2021 | 54 | 131 | |
| Havre, MT | 69°F | 37°F | 0.00 in | the warmest 3 October since 2022 | 43 | 146 | |
| Helena, MT | 74°F | 45°F | 0.00 in | the warmest 3 October since 2021 | 16 | 147 | |
| Kalispell, MT | 69°F | 33°F | 0.00 in | the warmest 3 October since 2022 | 48 | 128 | |
| Missoula, MT | 74°F | 39°F | 0.00 in | the warmest 3 October since 2022 | 19 | 126 |
- Saturday 3 October 2026: a low of 52°F in Billings, MT, tying the record for the warmest 3 October night, set in 2011 and 1943, in 93 years since 1934; matching the National Weather Service report.
- 2026 so far averaged 47.1°F in Deer Lodge, MT (9 days missing), the warmest 1 January to 31 August since 1946 (1957 excluded: 63 of 243 days missing; 1959 excluded: 46 of 243 days missing; 1961 excluded: 28 of 243 days missing; 24 more years excluded for missing days), 5th warmest of 79.
- 2026 so far averaged 50.6°F in Glasgow, MT (1 day missing), the warmest 1 January to 3 October since 2024, tied 8th warmest of 124 (with 2016 and 1990).
- 2026 so far averaged 51.2°F in Great Falls, MT, the warmest 1 January to 3 October since 2012, tied 9th warmest of 131 (with 2006 and 1926).
- 2026 so far averaged 50.5°F in Havre, MT, the warmest 1 January to 3 October since 2012, 9th warmest of 146.
- 2026 so far averaged 52.7°F in Helena, MT, the warmest 1 January to 3 October since 2015, tied 2nd warmest of 146 (with 2015).
- 2026 so far brought 16.03 in of precipitation in Kalispell, MT, the wettest 1 January to 3 October since 1998, 9th wettest of 124.
- The last freeze of spring 2026 in Missoula, MT came on Monday 8 June 2026, the latest since 2000, 42nd latest of 124.
Counties
| County | Day | The day in the county average |
|---|---|---|
| Beaverhead County, MT | the warmest 29 September in the county average since 2025 | |
| Big Horn County, MT | the warmest 29 September in the county average since 2025 | |
| Blaine County, MT | the warmest 29 September in the county average since 2025 | |
| Broadwater County, MT | the warmest 29 September in the county average since 2025 | |
| Carbon County, MT | the warmest 29 September in the county average since 2025 | |
| Carter County, MT | the warmest 29 September in the county average since 2025 | |
| Cascade County, MT | the warmest 29 September in the county average since 2025 | |
| Chouteau County, MT | the warmest 29 September in the county average since 2025 | |
| Custer County, MT | the warmest 29 September in the county average since 2025 | |
| Daniels County, MT | the warmest 29 September in the county average since 2025 | |
| Dawson County, MT | the warmest 29 September in the county average since 2025 | |
| Deer Lodge County, MT | the warmest 29 September in the county average since 2025 | |
| Fallon County, MT | the warmest 29 September in the county average since 2025 | |
| Fergus County, MT | the warmest 29 September in the county average since 2025 | |
| Flathead County, MT | the warmest 29 September in the county average since 2025 | |
| Gallatin County, MT | the warmest 29 September in the county average since 2025 | |
| Garfield County, MT | the warmest 29 September in the county average since 2025 | |
| Glacier County, MT | the warmest 29 September in the county average since 2025 | |
| Golden Valley County, MT | the warmest 29 September in the county average since 2025 | |
| Granite County, MT | the warmest 29 September in the county average since 2025 | |
| Hill County, MT | the warmest 29 September in the county average since 2025 | |
| Jefferson County, MT | the warmest 29 September in the county average since 2025 | |
| Judith Basin County, MT | the warmest 29 September in the county average since 2025 | |
| Lake County, MT | the warmest 29 September in the county average since 2025 | |
| Lewis and Clark County, MT | the warmest 29 September in the county average since 2025 | |
| Liberty County, MT | the warmest 29 September in the county average since 2025 | |
| Lincoln County, MT | the warmest 29 September in the county average since 2025 | |
| Madison County, MT | the warmest 29 September in the county average since 2025 | |
| McCone County, MT | the warmest 29 September in the county average since 2025 | |
| Meagher County, MT | the warmest 29 September in the county average since 2025 | |
| Mineral County, MT | the warmest 29 September in the county average since 2025 | |
| Missoula County, MT | the warmest 29 September in the county average since 2025 | |
| Musselshell County, MT | the warmest 29 September in the county average since 2025 | |
| Park County, MT | the warmest 29 September in the county average since 2025 | |
| Petroleum County, MT | the warmest 29 September in the county average since 2025 | |
| Phillips County, MT | the warmest 29 September in the county average since 2025 | |
| Pondera County, MT | the warmest 29 September in the county average since 2025 | |
| Powder River County, MT | the warmest 29 September in the county average since 2025 | |
| Powell County, MT | the warmest 29 September in the county average since 2025 | |
| Prairie County, MT | the warmest 29 September in the county average since 2025 | |
| Ravalli County, MT | the warmest 29 September in the county average since 2025 | |
| Richland County, MT | the warmest 29 September in the county average since 2025 | |
| Roosevelt County, MT | the warmest 29 September in the county average since 2025 | |
| Rosebud County, MT | the warmest 29 September in the county average since 2025 | |
| Sanders County, MT | the warmest 29 September in the county average since 2025 | |
| Sheridan County, MT | the warmest 29 September in the county average since 2025 | |
| Silver Bow County, MT | the warmest 29 September in the county average since 2025 | |
| Stillwater County, MT | the warmest 29 September in the county average since 2025 | |
| Sweet Grass County, MT | the warmest 29 September in the county average since 2025 | |
| Teton County, MT | the warmest 29 September in the county average since 2025 | |
| Toole County, MT | the warmest 29 September in the county average since 2025 | |
| Treasure County, MT | the warmest 29 September in the county average since 2025 | |
| Valley County, MT | the warmest 29 September in the county average since 2025 | |
| Wheatland County, MT | the warmest 29 September in the county average since 2025 | |
| Wibaux County, MT | the warmest 29 September in the county average since 2025 | |
| Yellowstone County, MT | the warmest 29 September in the county average since 2025 |
Records set this year
- RecordWednesday 5 August 2026: a low of 38°F in Kalispell, MT, the coldest 5 August night on record, in 128 years since 1899; provisional, awaiting the National Weather Service report.
- RecordTuesday 4 August 2026: a low of 40°F in Havre, MT, the coldest 4 August night on record, in 147 years since 1880; provisional, awaiting the National Weather Service report.
- RecordTuesday 4 August 2026: a low of 38°F in Great Falls, MT, the coldest 4 August night on record, in 135 years since 1892; provisional, awaiting the National Weather Service report.
- RecordSaturday 1 August 2026: a high of 103°F in Helena, MT, the warmest 1 August on record, in 147 years since 1880; provisional, awaiting the National Weather Service report.
- RecordSaturday 1 August 2026: a high of 102°F in Great Falls, MT, the warmest 1 August on record, in 135 years since 1892; provisional, awaiting the National Weather Service report.
- RecordSaturday 1 August 2026: a high of 99°F in Deer Lodge, MT, the warmest 1 August on record, in 105 years since 1899 (no value for 1900, 1905, 1906 and 20 other years); provisional, awaiting the National Weather Service report.
- RecordSaturday 1 August 2026: a high of 104°F in Billings, MT, the warmest 1 August on record, in 92 years since 1935; provisional, awaiting the National Weather Service report.
- RecordSaturday 25 July 2026: a high of 102°F in Helena, MT, the warmest 25 July on record, in 147 years since 1880; provisional, awaiting the National Weather Service report.
- RecordSaturday 25 July 2026: a high of 102°F in Billings, MT, the warmest 25 July on record, in 92 years since 1935; provisional, awaiting the National Weather Service report.
- RecordSunday 12 July 2026: a high of 111°F in Billings, MT, the warmest 12 July on record, in 92 years since 1935; provisional, awaiting the National Weather Service report.
- RecordSaturday 11 July 2026: a high of 104°F in Billings, MT, the warmest 11 July on record, in 92 years since 1935; provisional, awaiting the National Weather Service report.
- RecordMonday 8 June 2026: a low of 31°F in Missoula, MT, the coldest 8 June night on record, in 129 years since 1893 (no value for 1898, 1914, 1921 and 2 other years); provisional, awaiting the National Weather Service report.
- RecordSunday 7 June 2026: a low of 25°F in Deer Lodge, MT, the coldest 7 June night on record, in 101 years since 1895 (no value for 1897, 1898, 1900 and 28 other years); provisional, awaiting the National Weather Service report.
- RecordWednesday 13 May 2026: a high of 95°F in Billings, MT, the warmest 13 May on record, in 92 years since 1935; provisional, awaiting the National Weather Service report.
- RecordWednesday 6 May 2026: a low of 17°F in Havre, MT, the coldest 6 May night on record, in 147 years since 1880; provisional, awaiting the National Weather Service report.
- RecordTuesday 5 May 2026: a low of 25°F in Great Falls, MT, the coldest 5 May night on record, in 135 years since 1892; provisional, awaiting the National Weather Service report.
- RecordMonday 27 April 2026: a low of 15°F in Havre, MT, the coldest 27 April night on record, in 147 years since 1880; provisional, awaiting the National Weather Service report.
- RecordWednesday 25 March 2026: a high of 78°F in Billings, MT, the warmest 25 March on record, in 92 years since 1935; provisional, awaiting the National Weather Service report.
- RecordFriday 20 March 2026: a high of 75°F in Missoula, MT, the warmest 20 March on record, in 128 years since 1894 (no value for 1904, 1907, 1921 and 2 other years); provisional, awaiting the National Weather Service report.
- RecordFriday 20 March 2026: a high of 68°F in Kalispell, MT, the warmest 20 March on record, in 126 years since 1900 (no value for 1949); provisional, awaiting the National Weather Service report.
- RecordFriday 20 March 2026: a high of 77°F in Helena, MT, the warmest 20 March on record, in 146 years since 1881; provisional, awaiting the National Weather Service report.
- RecordFriday 20 March 2026: a high of 76°F in Great Falls, MT, the warmest 20 March on record, in 132 years since 1894 (no value for 1897); provisional, awaiting the National Weather Service report.
- RecordFriday 20 March 2026: a high of 77°F in Glasgow, MT, the warmest 20 March on record, in 130 years since 1894 (no value for 1909, 1910 and 1914); provisional, awaiting the National Weather Service report.
- RecordFriday 20 March 2026: a high of 73°F in Deer Lodge, MT, the warmest 20 March on record, in 106 years since 1893 (no value for 1900, 1901, 1907 and 25 other years); provisional, awaiting the National Weather Service report.
- RecordFriday 20 March 2026: a high of 83°F in Billings, MT, the warmest 20 March on record, in 92 years since 1935; provisional, awaiting the National Weather Service report.
- RecordThursday 19 March 2026: a high of 72°F in Missoula, MT, the warmest 19 March on record, in 126 years since 1894 (no value for 1899, 1904, 1907 and 4 other years); provisional, awaiting the National Weather Service report.
- RecordThursday 19 March 2026: a high of 73°F in Helena, MT, the warmest 19 March on record, in 146 years since 1881; provisional, awaiting the National Weather Service report.
- RecordThursday 19 March 2026: a high of 75°F in Havre, MT, the warmest 19 March on record, in 147 years since 1880; provisional, awaiting the National Weather Service report.
- RecordThursday 19 March 2026: a high of 72°F in Great Falls, MT, the warmest 19 March on record, in 132 years since 1894 (no value for 1897); provisional, awaiting the National Weather Service report.
- RecordThursday 19 March 2026: a high of 73°F in Deer Lodge, MT, the warmest 19 March on record, in 103 years since 1893 (no value for 1894, 1900, 1901 and 28 other years); provisional, awaiting the National Weather Service report.
- RecordThursday 19 March 2026: a high of 79°F in Billings, MT, the warmest 19 March on record, in 92 years since 1935; provisional, awaiting the National Weather Service report.
- RecordWednesday 18 March 2026: a high of 68°F in Deer Lodge, MT, the warmest 18 March on record, in 104 years since 1893 (no value for 1900, 1901, 1907 and 27 other years); provisional, awaiting the National Weather Service report.
- RecordSunday 8 March 2026: a high of 66°F in Glasgow, MT, the warmest 8 March on record, in 130 years since 1894 (no value for 1909, 1910 and 1914); provisional, awaiting the National Weather Service report.
- RecordSunday 8 March 2026: a high of 69°F in Billings, MT, the warmest 8 March on record, in 92 years since 1935; provisional, awaiting the National Weather Service report.
- RecordSaturday 7 March 2026: a high of 64°F in Glasgow, MT, the warmest 7 March on record, in 130 years since 1894 (no value for 1909, 1910 and 1914); provisional, awaiting the National Weather Service report.
- RecordSunday 22 February 2026: a high of 58°F in Missoula, MT, the warmest 22 February on record, in 128 years since 1894 (no value for 1907, 1914, 1921 and 2 other years); provisional, awaiting the National Weather Service report.
- RecordSaturday 14 February 2026: a high of 52°F in Glasgow, MT, the warmest 14 February on record, in 130 years since 1894 (no value for 1902, 1910 and 1914); provisional, awaiting the National Weather Service report.
- RecordSunday 8 February 2026: a high of 59°F in Deer Lodge, MT, the warmest 8 February on record, in 109 years since 1893 (no value for 1900, 1907, 1908 and 22 other years); provisional, awaiting the National Weather Service report.
- RecordSaturday 7 February 2026: a high of 64°F in Havre, MT, the warmest 7 February on record, in 147 years since 1880; provisional, awaiting the National Weather Service report.
- RecordFriday 6 February 2026: a high of 67°F in Great Falls, MT, the warmest 6 February on record, in 131 years since 1894 (no value for 1898 and 1902); provisional, awaiting the National Weather Service report.
- RecordThursday 5 February 2026: a high of 51°F in Missoula, MT, the warmest 5 February on record, in 129 years since 1894 (no value for 1914, 1921, 1922 and 1 other year); provisional, awaiting the National Weather Service report.
- RecordThursday 5 February 2026: a high of 54°F in Kalispell, MT, the warmest 5 February on record, in 125 years since 1900 (no value for 1918 and 1949); provisional, awaiting the National Weather Service report.
- RecordThursday 5 February 2026: a high of 66°F in Havre, MT, the warmest 5 February on record, in 147 years since 1880; provisional, awaiting the National Weather Service report.
- RecordThursday 5 February 2026: a high of 70°F in Great Falls, MT, the warmest 5 February on record, in 132 years since 1894 (no value for 1898); provisional, awaiting the National Weather Service report.
- RecordThursday 5 February 2026: a high of 67°F in Billings, MT, the warmest 5 February on record, in 92 years since 1935; provisional, awaiting the National Weather Service report.
- RecordWednesday 4 February 2026: a high of 63°F in Havre, MT, the warmest 4 February on record, in 147 years since 1880; provisional, awaiting the National Weather Service report.
- RecordWednesday 4 February 2026: a high of 68°F in Great Falls, MT, the warmest 4 February on record, in 133 years since 1893 (no value for 1898); provisional, awaiting the National Weather Service report.
- RecordWednesday 4 February 2026: a high of 63°F in Billings, MT, the warmest 4 February on record, in 92 years since 1935; provisional, awaiting the National Weather Service report.
- RecordTuesday 3 February 2026: a high of 52°F in Missoula, MT, the warmest 3 February on record, in 128 years since 1894 (no value for 1914, 1921, 1922 and 2 other years); provisional, awaiting the National Weather Service report.
- RecordThursday 15 January 2026: a high of 51°F in Missoula, MT, the warmest 15 January on record, in 127 years since 1894 (no value for 1899, 1914, 1921 and 3 other years); provisional, awaiting the National Weather Service report.
- RecordWednesday 14 January 2026: a high of 58°F in Helena, MT, the warmest 14 January on record, in 146 years since 1881; provisional, awaiting the National Weather Service report.
- RecordWednesday 14 January 2026: a high of 60°F in Havre, MT, the warmest 14 January on record, in 146 years since 1880 (no value for 1996); provisional, awaiting the National Weather Service report.
- RecordWednesday 14 January 2026: a high of 64°F in Great Falls, MT, the warmest 14 January on record, in 134 years since 1892 (no value for 1895); provisional, awaiting the National Weather Service report.
- RecordWednesday 14 January 2026: a high of 66°F in Billings, MT, the warmest 14 January on record, in 92 years since 1935; provisional, awaiting the National Weather Service report.
- RecordTuesday 13 January 2026: a high of 55°F in Missoula, MT, the warmest 13 January on record, in 126 years since 1894 (no value for 1914, 1921, 1922 and 4 other years); provisional, awaiting the National Weather Service report.
- RecordTuesday 13 January 2026: a high of 56°F in Helena, MT, the warmest 13 January on record, in 146 years since 1881; provisional, awaiting the National Weather Service report.
- RecordTuesday 13 January 2026: a high of 62°F in Great Falls, MT, the warmest 13 January on record, in 135 years since 1892; provisional, awaiting the National Weather Service report.
- RecordMonday 12 January 2026: a high of 58°F in Helena, MT, the warmest 12 January on record, in 146 years since 1881; provisional, awaiting the National Weather Service report.
- RecordMonday 12 January 2026: a high of 56°F in Deer Lodge, MT, the warmest 12 January on record, in 107 years since 1893 (no value for 1901, 1902, 1906 and 24 other years); provisional, awaiting the National Weather Service report.
- RecordSaturday 3 January 2026: a high of 58°F in Great Falls, MT, the warmest 3 January on record, in 135 years since 1892; provisional, awaiting the National Weather Service report.
- Records set this year not listed
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