August weather in Missoula, MT

The average temperature in Missoula in August is 67.5°F (51.0°F–84.0°F). Average precipitation: 1.03 inches.

August is a summer month in Missoula, and is warmer than the annual average of 46.2°F. Daily temperatures swing about 33°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 14h 1m. For travel, August is a comfortable month to visit.

Avg High
84.0°F
Avg Low
51.0°F
Precipitation
1.03 in
Daylight
14h 1m

August records in Missoula

Date Record High Record Low Record Precip
August 1 97.0°F (2003) 37.9°F (1987) 0.39 in (2013)
August 2 97.0°F (1973) 37.0°F (1987) 0.97 in (1985)
August 3 96.1°F (1997) 41.0°F (2002) 0.57 in (1999)
August 4 93.9°F (1969) 37.0°F (1980) 0.46 in (2002)
August 5 99.0°F (1998) 44.1°F (1996) 0.07 in (1993)
August 6 98.1°F (1990) 39.0°F (1969) 0.92 in (2009)
August 7 98.1°F (1983) 39.9°F (1969) 2.13 in (2009)
August 8 97.0°F (1972) 37.9°F (1995) 0.26 in (2006)
August 9 99.0°F (1991) 37.9°F (1995) 0.10 in (2010)
August 10 97.0°F (2003) 41.0°F (1975) 0.57 in (1985)
August 11 95.0°F (1971) 42.1°F (1987) 0.84 in (1983)
August 12 95.0°F (1967) 43.0°F (2006) 0.58 in (1985)
August 13 97.0°F (1971) 41.0°F (1985) 0.37 in (1999)
August 14 97.0°F (1990) 41.0°F (1995) 0.54 in (1968)
August 15 97.0°F (1990) 37.9°F (1974) 1.35 in (1968)
August 16 93.9°F (1967) 39.9°F (1974) 0.24 in (1993)
August 17 98.1°F (2001) 39.0°F (1969) 0.57 in (1978)
August 18 99.0°F (2008) 39.9°F (1970) 0.37 in (1990)
August 19 96.1°F (1967) 37.9°F (1980) 0.46 in (1975)
August 20 95.0°F (1967) 39.9°F (1984) 0.80 in (1985)
August 21 98.1°F (1969) 37.0°F (1988) 0.62 in (2008)
August 22 99.0°F (1969) 37.9°F (1992) 0.45 in (1992)
August 23 100.9°F (1969) 36.0°F (1992) 0.77 in (2004)
August 24 102.0°F (1969) 37.9°F (1971) 0.53 in (1997)
August 25 98.1°F (1981) 30.9°F (1992) 0.33 in (1989)
August 26 98.1°F (1981) 37.0°F (1992) 0.66 in (2004)
August 27 97.0°F (1971) 36.0°F (1976) 0.40 in (1975)
August 28 95.0°F (1986) 39.0°F (1977) 0.62 in (1968)
August 29 96.1°F (1998) 30.9°F (1980) 0.34 in (1986)
August 30 93.9°F (1991) 34.0°F (1980) 0.79 in (1977)
August 31 93.9°F (1998) 36.0°F (2005) 0.73 in (1979)

Other months in Missoula