August weather in Thompson Falls, MT
The average temperature in Thompson Falls in August is 68.8°F (51.5°F–86.2°F). Average precipitation: 0.89 inches.
August is a summer month in Thompson Falls, and is warmer than the annual average of 47.7°F. Daily temperatures swing about 34.7°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 14h 5m. For travel, August is a comfortable month to visit.
Avg High
86.2°F
Avg Low
51.5°F
Precipitation
0.89 in
Daylight
14h 5m
August records in Thompson Falls
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 102.9°F (1992) | 42.1°F (1957) | 2.00 in (1998) |
| August 2 | 102.9°F (1961) | 37.9°F (1987) | 0.71 in (1960) |
| August 3 | 102.9°F (1961) | 39.0°F (1988) | 0.92 in (1965) |
| August 4 | 107.1°F (1961) | 37.9°F (1956) | 0.52 in (2024) |
| August 5 | 104.0°F (1961) | 43.0°F (1956) | 0.39 in (1976) |
| August 6 | 102.0°F (1990) | 39.9°F (1964) | 0.78 in (1995) |
| August 7 | 100.9°F (1986) | 39.9°F (1969) | 1.19 in (2009) |
| August 8 | 102.9°F (1989) | 39.0°F (1988) | 0.80 in (2025) |
| August 9 | 102.9°F (1984) | 39.9°F (1995) | 0.29 in (1989) |
| August 10 | 106.0°F (2018) | 43.0°F (1964) | 0.41 in (1985) |
| August 11 | 107.1°F (2018) | 41.0°F (1988) | 0.76 in (1983) |
| August 12 | 102.0°F (1992) | 39.9°F (2000) | 0.42 in (1964) |
| August 13 | 100.9°F (1992) | 39.0°F (1957) | 0.55 in (1978) |
| August 14 | 106.0°F (1992) | 41.0°F (1957) | 0.60 in (1987) |
| August 15 | 100.9°F (2023) | 37.9°F (1988) | 0.61 in (1976) |
| August 16 | 100.9°F (1967) | 39.9°F (1985) | 0.44 in (1976) |
| August 17 | 102.9°F (2008) | 37.0°F (1969) | 0.76 in (2021) |
| August 18 | 104.0°F (2008) | 37.0°F (1987) | 0.55 in (1980) |
| August 19 | 102.0°F (1967) | 37.9°F (1988) | 0.41 in (2014) |
| August 20 | 100.9°F (1967) | 37.9°F (1998) | 0.50 in (1965) |
| August 21 | 100.0°F (1991) | 37.9°F (1988) | 1.70 in (2022) |
| August 22 | 100.0°F (1969) | 39.0°F (1988) | 0.91 in (1992) |
| August 23 | 100.9°F (1969) | 37.9°F (1962) | 0.61 in (1975) |
| August 24 | 105.1°F (1988) | 39.0°F (1962) | 0.68 in (1989) |
| August 25 | 99.0°F (1996) | 33.1°F (1992) | 0.53 in (1989) |
| August 26 | 100.9°F (1981) | 37.9°F (1993) | 0.80 in (2013) |
| August 27 | 102.0°F (1986) | 37.9°F (1976) | 2.17 in (1966) |
| August 28 | 105.1°F (1986) | 36.0°F (1960) | 0.64 in (1964) |
| August 29 | 102.0°F (1986) | 35.1°F (1969) | 0.37 in (1956) |
| August 30 | 100.0°F (1991) | 32.0°F (1965) | 0.58 in (2023) |
| August 31 | 100.0°F (1967) | 34.0°F (1965) | 0.57 in (1979) |