Fallon County, MT
: September 2026 so far averaged 63.6°F in Fallon County, MT, the warmest 1 to 29 September in the county average since 2024, 4th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
Last updated . This page normally updates every day; the latest update is late.
- High
- 72.6°F
- Warmest since 2025
- 30th warmest of 76
- Low
- 48.2°F
- Warmest since 2025
- 5th warmest of 76
- Precipitation
- 0.01 in
- Wettest since 2023
- 13th wettest of 76
- Normal range, 32.8 to 45.7°F
Every year as a table
Every 29 September high of the county average in Fallon County, MT since 1951: 72.6°F in 2026; the highest is 90.9°F, in 2024.
| Year | High, °F | Low, °F |
|---|---|---|
| 2026 | 72.6 | 48.2 |
| 2025 | 87.3 | 48.5 |
| 2024 | 90.9 | 50.3 |
| 2023 | 66.8 | 45.8 |
| 2022 | 83.9 | 46.3 |
| 2021 | 90.8 | 50.2 |
| 2020 | 66.3 | 35.3 |
| 2019 | 47.4 | 36.2 |
| 2018 | 50.4 | 29.3 |
| 2017 | 73.3 | 44.1 |
| 2016 | 77.3 | 46.6 |
| 2015 | 65.6 | 38.8 |
| 2014 | 55.5 | 43.3 |
| 2013 | 63.3 | 36.7 |
| 2012 | 79.2 | 45.7 |
| 2011 | 70.8 | 37.6 |
| 2010 | 80.8 | 45.1 |
| 2009 | 66.3 | 37.2 |
| 2008 | 69 | 32.9 |
| 2007 | 81.3 | 43.4 |
| 2006 | 69.1 | 32.9 |
| 2005 | 60 | 36.6 |
| 2004 | 71.5 | 39.6 |
| 2003 | 59 | 31.5 |
| 2002 | 64.5 | 36.6 |
| 2001 | 87 | 50.4 |
| 2000 | 82.8 | 40.9 |
| 1999 | 53 | 25.9 |
| 1998 | 75.5 | 40.9 |
| 1997 | 69.3 | 45.7 |
| 1996 | 68.6 | 38.3 |
| 1995 | 77.8 | 43.9 |
| 1994 | 82.7 | 41.6 |
| 1993 | 66 | 33.8 |
| 1992 | 75.7 | 34.2 |
| 1991 | 75.5 | 40.3 |
| 1990 | 62.2 | 30.7 |
| 1989 | 84.2 | 47.1 |
| 1988 | 54.4 | 35.5 |
| 1987 | 61.5 | 36.8 |
| 1986 | 55.9 | 36.8 |
| 1985 | 34.2 | 24.2 |
| 1984 | 45.8 | 24.2 |
| 1983 | 47.4 | 34.8 |
| 1982 | 43.5 | 31.3 |
| 1981 | 72.7 | 40.6 |
| 1980 | 85.3 | 47.4 |
| 1979 | 79.6 | 43 |
| 1978 | 69.1 | 47.8 |
| 1977 | 63.2 | 40.5 |
| 1976 | 75.5 | 32.8 |
| 1975 | 66.2 | 38.3 |
| 1974 | 60.1 | 31.1 |
| 1973 | 76.3 | 39.1 |
| 1972 | 53.1 | 25.3 |
| 1971 | 63.6 | 37.3 |
| 1970 | 77.9 | 39.1 |
| 1969 | 80.2 | 37.4 |
| 1968 | 70.6 | 40.2 |
| 1967 | 83.8 | 41.8 |
| 1966 | 66.1 | 42.7 |
| 1965 | 39.8 | 33.1 |
| 1964 | 64 | 35.1 |
| 1963 | 75.9 | 35 |
| 1962 | 71.8 | 47.1 |
| 1961 | 60.5 | 33.3 |
| 1960 | 60.2 | 31.8 |
| 1959 | 42.3 | 28.6 |
| 1958 | 66.2 | 38.7 |
| 1957 | 83.5 | 43.6 |
| 1956 | 58.7 | 35.3 |
| 1955 | 72.1 | 39.7 |
| 1954 | 49.3 | 35.7 |
| 1953 | 75.3 | 42.2 |
| 1952 | 78.6 | 42.3 |
| 1951 | 67.6 | 34.9 |
The month
August 2026 averaged 70.4°F in Fallon County, MT, the warmest August in the county average since 2022, tied 32nd warmest of 132 (with 1920) (county average from NOAA's monthly county data, 1895 to 2026).
The month in words
- Tuesday 29 September 2026: a high of 72.6°F averaged over Fallon County, MT, the warmest 29 September in the county average since 2025, 30th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: a low of 48.2°F averaged over Fallon County, MT, the warmest 29 September night in the county average since 2025, 5th warmest of 76 (county average from NOAA gridded data, 1951 to 2026).
- Tuesday 29 September 2026: 0.01 in of precipitation averaged over Fallon County, MT, the wettest 29 September in the county average since 2023, tied 13th wettest of 76 (with 2023 and 1991) (county average from NOAA gridded data, 1951 to 2026).
- Days of the month without a value
- 0
Nearby
Williston, ND 137.3 mi, the nearest city with its own station