September weather in Medicine Lake, MT
The average temperature in Medicine Lake in September is 57.1°F (42.1°F–72.0°F). Average precipitation: 1.17 inches.
September is a fall month in Medicine Lake, and is warmer than the annual average of 41°F. Daily temperatures swing about 29.9°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 20m. For travel, September is a comfortable month to visit.
Avg High
72.0°F
Avg Low
42.1°F
Precipitation
1.17 in
Daylight
12h 20m
September records in Medicine Lake
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.9°F (1921) | 28.9°F (1917) | 0.97 in (1973) |
| September 2 | 100.0°F (1983) | 30.0°F (1946) | 0.87 in (1961) |
| September 3 | 100.0°F (1940) | 28.0°F (1962) | 1.01 in (1973) |
| September 4 | 100.9°F (1978) | 28.9°F (1929) | 0.90 in (1911) |
| September 5 | 97.0°F (1913) | 26.1°F (1965) | 0.76 in (1971) |
| September 6 | 100.9°F (1931) | 30.0°F (1929) | 1.35 in (1911) |
| September 7 | 97.0°F (2009) | 19.9°F (1929) | 1.25 in (2019) |
| September 8 | 100.9°F (2022) | 21.0°F (2020) | 0.95 in (1961) |
| September 9 | 96.1°F (1994) | 23.0°F (1918) | 1.25 in (1950) |
| September 10 | 100.0°F (1994) | 26.1°F (1955) | 1.87 in (1916) |
| September 11 | 93.0°F (1948) | 21.9°F (1964) | 0.95 in (2006) |
| September 12 | 95.0°F (1969) | 23.0°F (1989) | 2.19 in (1978) |
| September 13 | 93.9°F (1990) | 15.1°F (1949) | 2.28 in (1954) |
| September 14 | 91.9°F (1946) | 19.9°F (1949) | 0.30 in (1965) |
| September 15 | 96.1°F (1948) | 19.0°F (1934) | 0.60 in (1917) |
| September 16 | 96.1°F (1979) | 17.1°F (2012) | 1.34 in (1954) |
| September 17 | 93.0°F (1979) | 21.0°F (1918) | 1.05 in (2017) |
| September 18 | 98.1°F (1937) | 21.9°F (2010) | 1.32 in (1988) |
| September 19 | 98.1°F (2021) | 19.0°F (1918) | 1.96 in (1925) |
| September 20 | 93.9°F (2009) | 19.9°F (1997) | 0.84 in (2011) |
| September 21 | 93.9°F (1938) | 17.1°F (1995) | 0.61 in (2018) |
| September 22 | 91.0°F (1917) | 17.1°F (1995) | 0.76 in (2006) |
| September 23 | 89.1°F (1917) | 21.0°F (1928) | 1.46 in (1920) |
| September 24 | 90.0°F (1992) | 23.0°F (1912) | 0.95 in (1923) |
| September 25 | 93.9°F (2014) | 9.0°F (1926) | 0.92 in (1959) |
| September 26 | 95.0°F (2014) | 17.1°F (1928) | 0.80 in (2013) |
| September 27 | 93.0°F (2010) | 10.0°F (1928) | 0.72 in (1982) |
| September 28 | 93.0°F (2021) | 17.1°F (1928) | 1.12 in (1925) |
| September 29 | 96.1°F (2021) | 17.1°F (1939) | 0.76 in (1937) |
| September 30 | 91.9°F (2024) | 15.1°F (1961) | 0.52 in (1926) |