Yellowstone County, MT
An ordinary day in Yellowstone County, MT: was cooler than 40 of 75 earlier years in the county average (county average from NOAA gridded data, 1951 to 2026).
Last updated . This page normally updates every day; the latest update is late.
- High
- 69.5°F
- Coldest since 2023
- 36th coldest of 76
- Low
- 41.2°F
- Warmest since 2025
- 29th warmest of 76
No measurable precipitation in the county average of Yellowstone County, MT for 5 days to Tuesday 29 September 2026 (county average from NOAA gridded data, 1951 to 2026).
- Normal range, 55 to 80.7°F
Every year as a table
Every 29 September low of the county average in Yellowstone County, MT since 1951: 41.2°F in 2026; the lowest is 23.4°F, in 1985.
| Year | High, °F | Low, °F |
|---|---|---|
| 2026 | 69.5 | 41.2 |
| 2025 | 83.4 | 48.3 |
| 2024 | 83.4 | 47.7 |
| 2023 | 67.5 | 40.6 |
| 2022 | 88.3 | 47.6 |
| 2021 | 79.6 | 43.9 |
| 2020 | 70.3 | 38.7 |
| 2019 | 43.9 | 35.8 |
| 2018 | 43.9 | 36.5 |
| 2017 | 72.3 | 39.6 |
| 2016 | 72.2 | 46.4 |
| 2015 | 69.3 | 40.3 |
| 2014 | 50.5 | 46.6 |
| 2013 | 65.5 | 43.3 |
| 2012 | 78.8 | 44.8 |
| 2011 | 76.2 | 40.6 |
| 2010 | 91.8 | 49.4 |
| 2009 | 68.3 | 30.9 |
| 2008 | 67.2 | 37.7 |
| 2007 | 78.9 | 46.2 |
| 2006 | 77.5 | 41.5 |
| 2005 | 65.4 | 35.4 |
| 2004 | 70.7 | 40.2 |
| 2003 | 67 | 40 |
| 2002 | 63 | 37.5 |
| 2001 | 86.4 | 51.4 |
| 2000 | 80.4 | 43.1 |
| 1999 | 55.5 | 29.8 |
| 1998 | 76.9 | 44.4 |
| 1997 | 73.1 | 41 |
| 1996 | 75.4 | 39.6 |
| 1995 | 73.3 | 45.2 |
| 1994 | 83.6 | 47.3 |
| 1993 | 68.2 | 38.6 |
| 1992 | 75.5 | 36.5 |
| 1991 | 77.5 | 46.9 |
| 1990 | 64.5 | 35 |
| 1989 | 83.8 | 48 |
| 1988 | 64 | 39.5 |
| 1987 | 68.3 | 35.6 |
| 1986 | 58.8 | 37.7 |
| 1985 | 35.2 | 23.4 |
| 1984 | 47.5 | 24.4 |
| 1983 | 42.3 | 36.6 |
| 1982 | 48.1 | 36.6 |
| 1981 | 72.6 | 44 |
| 1980 | 80 | 42.1 |
| 1979 | 81.4 | 41.2 |
| 1978 | 67.7 | 46.2 |
| 1977 | 63.7 | 43.5 |
| 1976 | 74.7 | 34.5 |
| 1975 | 76.8 | 40.2 |
| 1974 | 66.1 | 36.5 |
| 1973 | 76.5 | 40.8 |
| 1972 | 54.8 | 25.4 |
| 1971 | 61.8 | 36.4 |
| 1970 | 78.2 | 39.8 |
| 1969 | 77.3 | 42.9 |
| 1968 | 70.1 | 38.6 |
| 1967 | 86.9 | 48 |
| 1966 | 73.1 | 46.7 |
| 1965 | 43.1 | 32.4 |
| 1964 | 68.5 | 34.8 |
| 1963 | 79 | 43 |
| 1962 | 73.6 | 52.8 |
| 1961 | 64.6 | 34 |
| 1960 | 67.4 | 36.1 |
| 1959 | 44.6 | 26.2 |
| 1958 | 69.4 | 39.6 |
| 1957 | 82.7 | 48.1 |
| 1956 | 61.9 | 37.5 |
| 1955 | 66.4 | 37.2 |
| 1954 | 44.9 | 33.1 |
| 1953 | 80 | 39.9 |
| 1952 | 79.4 | 41 |
| 1951 | 74 | 35.5 |
The month
September 2026 so far averaged 61.3°F in Yellowstone County, MT, the warmest 1 to 29 September in the county average since 2025, tied 21st warmest of 76 (with 1967) (county average from NOAA gridded data, 1951 to 2026).
The month in words
- August 2026 averaged 71.1°F in Yellowstone County, MT, the warmest August in the county average since 2023, 24th warmest of 132 (county average from NOAA's monthly county data, 1895 to 2026).
- Tuesday 29 September 2026: a high of 69.5°F averaged over Yellowstone County, MT, the coldest 29 September day in the county average since 2023, 36th coldest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: a low of 41.2°F averaged over Yellowstone County, MT, the warmest 29 September night in the county average since 2025, tied 29th warmest of 76 (with 1979) (county average from NOAA gridded data, 1951 to 2026).
- Days of the month without a value
- 0
Nearby
Billings, MT 15.8 mi, the nearest city with its own station