Great Falls, MT

4 October 2026: 2026 so far averaged 51.2°F in Great Falls, MT, the warmest 1 January to 4 October since 2012, tied 8th warmest of 131 (with 2012, 2006 and 1926).

Sunday 4 October 2026

High: 82°F; Warmest since 2024; 9th warmest of 132
Low: 36°F; Coldest since 2019; 53rd coldest of 134

No measurable precipitation in Great Falls, MT for 4 days to Sunday 4 October 2026.

Every 4 October low in Great Falls, MT since 1892: 36°F in 2026; the lowest is 18°F, in 1916.

Normal range, 24.8 to 47°F

Every year as a table

Every 4 October high in Great Falls, MT since 1892: 82°F in 2026; the highest is 86°F, in 1979, 1943 and 1892.

Year	High, °F	Low, °F
2026	82	36
2025	60	40
2024	84	38
2023	69	40
2022	76	43
2021	84	47
2020	83	50
2019	56	31
2018	40	23
2017	51	22
2016	48	36
2015	38	31
2014	74	47
2013	50	28
2012	43	30
2011	80	49
2010	78	46
2009	45	34
2008	67	47
2007	55	31
2006	59	38
2005	38	31
2004	72	32
2003	79	34
2002	50	32
2001	46	25
2000	45	22
1999	72	37
1998	57	26
1997	63	46
1996	80	45
1995	47	33
1994	54	36
1993	78	38
1992	58	39
1991	50	29
1990	77	54
1989	60	36
1988	60	32
1987	64	41
1986	67	46
1985	55	28
1984	77	37
1983	65	42
1982	43	33
1981	53	26
1980	85	54
1979	86	52
1978	59	34
1977	43	28
1976	50	33
1975	66	47
1974	55	31
1973	66	35
1972	54	38
1971	73	50
1970	84	57
1969	48	34
1968	72	46
1967	62	44
1966	65	41
1965	80	50
1964	57	25
1963	78	50
1962	62	39
1961	77	50
1960	73	56
1959	59	37
1958	78	41
1957	29	21
1956	73	51
1955	60	45
1954	35	27
1953	64	43
1952	51	27
1951	59	43
1950	65	39
1949	71	45
1948	70	48
1947	77	62
1946	56	40
1945	60	37
1944	77	53
1943	86	49
1942	69	40
1941	40	30
1940	58	41
1939	58	39
1938	65	34
1937	42
1936	67	45
1935	73	37
1934	65	33
1933	82	39
1932	71	26
1931	70	38
1930	73	36
1929	74	57
1928	58	36
1927	43	32
1926	60	33
1925	64	26
1924	43	34
1923	67	35
1922	66	43
1921	80	40
1920	78	36
1919	65	29
1918	71	50
1917	69	46
1916	40	18
1915	58	37
1914	34	32
1913	50	33
1912	69	40
1911	56	34
1910	60	44
1909	70	51
1908	62	34
1907	65	50
1906	51	40
1905	70	42
1904	55	35
1903	68	25
1902	76	35
1901	67	39
1900	48	34
1899	72	42
1898	32	21
1897	70	33
1896		40
1895		41
1894	61	41
1893		36
1892	86	39

The forecast

Date	High	Low
6 October	80°FRecord 83°F, 1980, 1964, 1960	50°FRecord 16°F, 2000
7 October	Record 86°F, 1933	Record 15°F, 1985

The month and the year

Every year's 1 to 4 October in Great Falls, MT, ranked by its mean temperature: October 2026 so far is the tied 46th warmest of 130.

Every year, ranked, as a table

Rank	Year	Mean, °F
1	1943	67.1
2	1963	66.5
3	2011	62.9
4	1947	62.8
5	1970	62.6
6	2010	62.3
7	1992	61.6
8	2008	61.3
8	1975	61.3
10	1962	60.6
11	1965	60.5
12	1917	60.4
13	2021	60.3
13	1987	60.3
15	1980	60.1
16	1997	59.8
17	1945	59.1
18	1938	59
19	1960	58.8
20	1956	58.3
21	2020	58.1
21	1918	58.1
23	1958	58
24	1904	57.8
25	1922	57.5
25	1905	57.5
27	1933	57.3
27	1906	57.3
29	1972	56.9
29	1948	56.9
29	1931	56.9
32	1935	56.6
33	1984	56.5
33	1912	56.5
35	2025	56
36	1979	55.9
37	1976	55.8
37	1942	55.8
39	1990	55.5
39	1961	55.5
39	1944	55.5
42	2022	55.3
42	1920	55.3
42	1909	55.3
45	1910	55.1
46	2026	55
46	1932	55
48	2024	54.6
48	1993	54.6
48	1913	54.6
51	1955	54.1
52	1951	54
53	1974	53.8
54	1897	53.5
55	1934	53.4
56	1915	53.3
57	1929	53.1
58	1907	53
59	2006	52.9
59	1967	52.9
61	1953	52.5
61	1902	52.5
63	1930	52.4
64	2003	52.1
64	1949	52.1
64	1936	52.1
64	1921	52.1
68	1899	52
69	1901	51.9
70	1988	51.6
71	1923	51.3
72	2023	50.8
72	1996	50.8
72	1971	50.8
75	1952	50.5
75	1894	50.5
77	1981	50
77	1928	50
79	1914	49.9
80	1919	49.8
81	1926	49.5
82	1978	49.3
83	1968	49
84	1940	48.8
85	2004	48.6
85	1966	48.6
87	1908	48.5
88	1939	48.4
89	1957	48.3
90	2016	48.1
90	1998	48.1
90	1924	48.1
93	1991	48
93	1946	48
95	1964	47.9
96	2014	47.8
96	1959	47.8
98	2007	47.6
98	1983	47.6
100	2001	47.5
101	1903	47
102	1973	46.8
103	2015	46.4
104	2012	46.3
105	1911	45.9
106	1994	45.8
106	1969	45.8
108	1986	45.6
109	1982	45.1
110	2000	44.9
111	1985	44.4
112	2005	43.5
112	1941	43.5
114	1995	43.1
115	1927	42.8
116	2009	42.6
117	1977	42.4
118	1925	41.9
119	2013	41.4
120	1989	40.3
121	2002	39.9
122	1900	38.8
123	2018	38
123	1999	38
125	1954	37.8
125	1950	37.8
127	2017	37.1
128	1916	35.4
129	2019	34.3
130	1898	32

Every day as a table

Daily highs and lows in Great Falls, MT, 1 to 4 October 2026, with each date's record range and its 1991 to 2020 normal range.

Day	High, °F	Low, °F	Record high	Year	Record low	Year	Normal high	Normal low
1 October 2026	62	33	91	1992	9	2019	65	40
2 October 2026	77	41	86	1943	17	2019	61	34.5
3 October 2026	71	38	91	1943	17	1999	57	33.5
4 October 2026	82	36	86	1979	18	1916	55.5	33.5

The warmest, coldest and wettest on this date

The 20 warmest 4 October highs in Great Falls, MT since 1892.
Rank	Year	High, °F
1	1979	86
1	1943	86
1	1892	86
4	1980	85
5	2024	84
5	2021	84
5	1970	84
8	2020	83
9	2026	82
9	1933	82
11	2011	80
11	1996	80
11	1965	80
11	1921	80
15	2003	79
16	2010	78
16	1993	78
16	1963	78
16	1958	78
16	1920	78

The 20 coldest 4 October lows in Great Falls, MT since 1892.
Rank	Year	Low, °F
1	1916	18
2	1957	21
2	1898	21
4	2017	22
4	2000	22
6	2018	23
7	2001	25
7	1964	25
7	1903	25
10	1998	26
10	1981	26
10	1932	26
10	1925	26
14	1954	27
14	1952	27
16	2013	28
16	1985	28
16	1977	28
19	1991	29
19	1919	29

The 20 wettest 4 October days in Great Falls, MT since 1892.
Rank	Year	Precipitation, in
1	1992	0.84
2	1913	0.71
3	1927	0.41
3	1912	0.41
5	1924	0.32
6	1957	0.30
7	1982	0.19
8	2011	0.17
8	2005	0.17
10	1914	0.16
10	1906	0.16
12	1963	0.15
13	2015	0.10
14	1986	0.08
14	1926	0.08
16	1974	0.07
17	2018	0.06
17	1956	0.06
17	1941	0.06
20	2016	0.04

Every answer in words

Sunday 4 October 2026: a high of 82°F in Great Falls, MT, the warmest 4 October since 2024, tied 9th warmest of 132 (with 1933).
Sunday 4 October 2026: a low of 36°F in Great Falls, MT, the coldest 4 October night since 2019, tied 53rd coldest of 134 (with 2016, 1994, 1989 and 4 other years).
Forecast for Tuesday 6 October 2026: a high of 80°F in Great Falls, MT, which would be the warmest 6 October since 2020, tied 7th warmest of 133 (with 2003 and 1920) (National Weather Service forecast).
Forecast for Tuesday 6 October 2026: a low of 50°F in Great Falls, MT, which would be the warmest 6 October night since 2021, tied 11th warmest of 134 (with 1986, 1966, 1920 and 4 other years) (National Weather Service forecast).
Great Falls, MT on 6 October: record high 83°F (1980, 1964 and 1960), record low 16°F (2000).
Great Falls, MT on 7 October: record high 86°F (1933), record low 15°F (1985).
October 2026 so far averaged 55°F in Great Falls, MT, the warmest 1 to 4 October since 2025, tied 46th warmest of 130 (with 1932).
October 2026 so far brought 0.00 in of precipitation in Great Falls, MT, tying the record for the driest 1 to 4 October, set in 2021, 2020, 2019 and 38 other years, in 135 years since 1892; provisional.
Fall 2026 so far averaged 58.2°F in Great Falls, MT, the warmest 1 September to 4 October since 2025, tied 47th warmest of 129 (with 1917).
Fall 2026 so far brought 1.00 in of precipitation in Great Falls, MT, the driest 1 September to 4 October since 2025, 54th driest of 135.
2026 so far brought 14.96 in of precipitation in Great Falls, MT, the wettest 1 January to 4 October since 2023, 31st wettest of 135.
The 30 days to Sunday 4 October 2026 brought 1.00 in of precipitation in Great Falls, MT, the driest 30 days to 4 October since 2025, 64th driest of 135.
The 60 days to Sunday 4 October 2026 brought 2.43 in of precipitation in Great Falls, MT, the driest 60 days to 4 October since 2025, 69th driest of 135.
The 90 days to Sunday 4 October 2026 brought 2.71 in of precipitation in Great Falls, MT, the driest 90 days to 4 October since 2025, 43rd driest of 135.
Great Falls, MT has had 23 days at 90°F or above in 2026 through 4 October, the most by that date since 2024, tied 44th most of 131 (with 2005, 1964 and 1960).
Great Falls, MT has had 2 days at 100°F or above in 2026 through 4 October, the most by that date since 2024, tied 15th most of 131 (with 2024, 2000, 1985 and 13 other years).
Great Falls, MT has had 93 freezing nights (a low of 32°F or below) in 2026 through 4 October, the most by that date since 2025, tied 95th most of 135 (with 1980, 1963 and 1953).
The first freeze of fall 2026 in Great Falls, MT came on Sunday 27 September 2026, the earliest since 2021, tied 83rd earliest of 135 (with 2013 and 1919).
The last freeze of spring 2026 in Great Falls, MT came on Monday 18 May 2026, the latest since 2025, tied 54th latest of 135 (with 2019, 2015, 1977 and 1 other year).

Nearby

Helena, MT 66.5 mi
Deer Lodge, MT 100.3 mi
Havre, MT 105.1 mi
Missoula, MT 132.9 mi
Kalispell, MT 145.3 mi
Cascade County, MT county average
Montana every city and county

All-time records

About these figures

Daily records for Great Falls, MT run from 1891 to 4 October 2026, with 606 days missing; current station GREAT FALLS AIRPORT.

Our calculation from NOAA records for Great Falls, MT, 1891 to 2026. Preliminary until NOAA's final data.