August weather in Plain, WI
The average temperature in Plain in August is 69.8°F (59.2°F–80.5°F). Average precipitation: 4.17 inches.
August is a summer month in Plain, and is warmer than the annual average of 47.3°F. Daily temperatures swing about 21.3°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 13h 47m. For travel, August is a comfortable month to visit.
Avg High
80.5°F
Avg Low
59.2°F
Precipitation
4.17 in
Daylight
13h 47m
August records in Plain
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 93.0°F (1953) | 46.9°F (1977) | 1.49 in (2001) |
| August 2 | 96.1°F (1964) | 46.9°F (1965) | 1.83 in (2001) |
| August 3 | 95.0°F (1955) | 45.0°F (1950) | 1.73 in (1953) |
| August 4 | 95.0°F (1956) | 42.1°F (1978) | 2.64 in (1982) |
| August 5 | 93.9°F (1965) | 44.1°F (1974) | 0.88 in (2007) |
| August 6 | 93.9°F (1968) | 44.1°F (1948) | 1.67 in (2006) |
| August 7 | 96.1°F (1949) | 43.0°F (1975) | 0.98 in (2021) |
| August 8 | 95.0°F (1949) | 44.1°F (1976) | 2.06 in (2010) |
| August 9 | 93.9°F (1949) | 43.0°F (1972) | 1.41 in (1973) |
| August 10 | 93.9°F (1949) | 45.0°F (1962) | 2.93 in (2025) |
| August 11 | 90.0°F (1958) | 39.9°F (1967) | 1.51 in (1974) |
| August 12 | 91.9°F (2010) | 41.0°F (1967) | 0.50 in (1972) |
| August 13 | 91.9°F (1965) | 41.0°F (1982) | 1.55 in (2010) |
| August 14 | 95.0°F (2015) | 37.9°F (1964) | 1.56 in (2023) |
| August 15 | 95.0°F (2015) | 39.0°F (1979) | 1.25 in (1981) |
| August 16 | 95.0°F (2003) | 42.1°F (1976) | 1.34 in (1977) |
| August 17 | 96.1°F (1955) | 39.9°F (1981) | 1.32 in (1949) |
| August 18 | 98.1°F (1955) | 37.9°F (1963) | 3.84 in (2007) |
| August 19 | 96.1°F (1955) | 43.0°F (1950) | 2.95 in (2007) |
| August 20 | 98.1°F (1955) | 37.0°F (1950) | 1.80 in (1964) |
| August 21 | 100.0°F (1955) | 39.0°F (1950) | 1.76 in (1980) |
| August 22 | 93.9°F (1948) | 41.0°F (1958) | 1.70 in (2013) |
| August 23 | 100.0°F (2023) | 42.1°F (1952) | 2.34 in (1962) |
| August 24 | 100.9°F (1948) | 41.0°F (1958) | 1.38 in (2022) |
| August 25 | 96.1°F (1948) | 39.0°F (1958) | 1.39 in (2001) |
| August 26 | 96.1°F (1948) | 39.0°F (1964) | 2.58 in (1972) |
| August 27 | 93.9°F (1953) | 37.9°F (1968) | 4.59 in (1959) |
| August 28 | 99.0°F (1955) | 39.9°F (1967) | 1.97 in (2018) |
| August 29 | 95.0°F (1953) | 39.0°F (1965) | 1.33 in (1957) |
| August 30 | 95.0°F (1958) | 42.1°F (2009) | 2.83 in (1956) |
| August 31 | 98.1°F (1953) | 37.9°F (1967) | 2.21 in (2010) |