September weather in Belgrade, MT
The average temperature in Belgrade in September is 56.3°F (39.5°F–73.0°F). Average precipitation: 1.00 inches.
September is a fall month in Belgrade, and is warmer than the annual average of 43°F. Daily temperatures swing about 33.5°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 18m. For travel, September is a comfortable month to visit.
Avg High
73.0°F
Avg Low
39.5°F
Precipitation
1.00 in
Daylight
12h 18m
September records in Belgrade
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (1983) | 32.0°F (2006) | 0.55 in (1944) |
| September 2 | 99.0°F (2007) | 28.9°F (1959) | 1.21 in (1944) |
| September 3 | 100.0°F (2022) | 32.0°F (1968) | 0.43 in (1947) |
| September 4 | 96.1°F (2019) | 27.0°F (1969) | 0.73 in (2023) |
| September 5 | 100.0°F (2020) | 30.9°F (1994) | 0.39 in (1949) |
| September 6 | 93.0°F (1980) | 27.0°F (1996) | 0.49 in (2002) |
| September 7 | 95.0°F (2022) | 27.0°F (1992) | 0.95 in (1970) |
| September 8 | 93.9°F (1979) | 27.0°F (1943) | 1.07 in (1970) |
| September 9 | 93.0°F (1982) | 24.1°F (1962) | 0.76 in (1961) |
| September 10 | 93.0°F (1966) | 28.0°F (1989) | 0.96 in (1947) |
| September 11 | 91.0°F (1990) | 19.0°F (1989) | 0.88 in (1978) |
| September 12 | 91.0°F (1953) | 19.9°F (1989) | 0.85 in (1978) |
| September 13 | 89.1°F (1948) | 26.1°F (1989) | 0.36 in (1965) |
| September 14 | 93.9°F (1948) | 21.9°F (1970) | 0.40 in (1986) |
| September 15 | 97.0°F (2000) | 26.1°F (1970) | 0.99 in (1977) |
| September 16 | 91.9°F (2009) | 27.0°F (1965) | 0.62 in (1996) |
| September 17 | 93.0°F (2009) | 23.0°F (1965) | 1.08 in (1947) |
| September 18 | 90.0°F (1966) | 21.0°F (1971) | 0.98 in (2024) |
| September 19 | 93.9°F (2009) | 21.0°F (1943) | 0.46 in (2004) |
| September 20 | 84.9°F (1966) | 19.9°F (1983) | 0.86 in (2019) |
| September 21 | 87.1°F (1967) | 19.0°F (1995) | 0.99 in (1984) |
| September 22 | 87.1°F (1966) | 21.9°F (1960) | 0.63 in (2022) |
| September 23 | 89.1°F (1966) | 19.9°F (1996) | 0.95 in (1941) |
| September 24 | 91.0°F (2009) | 16.0°F (2000) | 0.41 in (1948) |
| September 25 | 90.0°F (2001) | 21.9°F (2000) | 0.73 in (1981) |
| September 26 | 91.9°F (2010) | 23.0°F (1961) | 0.72 in (1987) |
| September 27 | 88.0°F (2021) | 21.9°F (1961) | 0.68 in (1983) |
| September 28 | 90.0°F (2010) | 17.1°F (1999) | 0.20 in (1965) |
| September 29 | 90.0°F (2024) | 15.1°F (1985) | 0.60 in (1947) |
| September 30 | 90.0°F (1963) | 15.1°F (1985) | 0.87 in (1977) |