August weather in Marion, WI
The average temperature in Marion in August is 68.1°F (56.7°F–79.4°F). Average precipitation: 3.74 inches.
August is a summer month in Marion, and is warmer than the annual average of 44.5°F. Daily temperatures swing about 22.7°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 13h 52m. For travel, August is one of the best months of the year to visit.
Avg High
79.4°F
Avg Low
56.7°F
Precipitation
3.74 in
Daylight
13h 52m
August records in Marion
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 98.1°F (2006) | 45.0°F (1976) | 1.46 in (2003) |
| August 2 | 98.1°F (1964) | 43.0°F (1976) | 0.84 in (2024) |
| August 3 | 97.0°F (1988) | 46.9°F (1966) | 1.45 in (1984) |
| August 4 | 95.0°F (1982) | 39.9°F (1972) | 1.22 in (2008) |
| August 5 | 93.9°F (1958) | 39.0°F (1957) | 1.04 in (1995) |
| August 6 | 91.9°F (2001) | 42.1°F (1976) | 1.55 in (2024) |
| August 7 | 98.1°F (2001) | 39.9°F (1975) | 1.50 in (1959) |
| August 8 | 99.0°F (2001) | 41.0°F (1975) | 1.70 in (2015) |
| August 9 | 98.1°F (2001) | 39.0°F (1964) | 1.49 in (2009) |
| August 10 | 93.0°F (1975) | 39.9°F (1972) | 3.45 in (1958) |
| August 11 | 91.0°F (2007) | 39.9°F (1967) | 0.80 in (1980) |
| August 12 | 91.0°F (1965) | 39.9°F (1999) | 1.35 in (2005) |
| August 13 | 91.0°F (1965) | 43.0°F (2004) | 1.19 in (2000) |
| August 14 | 96.1°F (1965) | 37.9°F (1964) | 0.92 in (1995) |
| August 15 | 91.9°F (1955) | 39.0°F (1979) | 2.02 in (2000) |
| August 16 | 90.0°F (1955) | 39.9°F (1979) | 1.69 in (1978) |
| August 17 | 95.0°F (1988) | 39.9°F (1954) | 1.18 in (2025) |
| August 18 | 97.0°F (1955) | 41.0°F (1977) | 1.02 in (1978) |
| August 19 | 96.1°F (1955) | 42.1°F (1967) | 2.64 in (2005) |
| August 20 | 97.0°F (1955) | 41.0°F (1956) | 1.40 in (2007) |
| August 21 | 104.0°F (1955) | 39.9°F (2004) | 1.73 in (2010) |
| August 22 | 96.1°F (1968) | 36.0°F (1967) | 1.35 in (2002) |
| August 23 | 97.0°F (1968) | 41.0°F (1967) | 1.25 in (1957) |
| August 24 | 97.0°F (2023) | 39.0°F (1977) | 1.30 in (1962) |
| August 25 | 93.0°F (1953) | 35.1°F (1977) | 1.90 in (1985) |
| August 26 | 93.9°F (1953) | 39.0°F (1964) | 2.25 in (1972) |
| August 27 | 102.9°F (1973) | 43.0°F (1968) | 1.82 in (1984) |
| August 28 | 102.0°F (1973) | 39.0°F (1965) | 5.03 in (2021) |
| August 29 | 95.0°F (1973) | 37.0°F (1976) | 2.10 in (1975) |
| August 30 | 95.0°F (1969) | 39.9°F (1976) | 2.23 in (1983) |
| August 31 | 93.0°F (1969) | 34.0°F (1967) | 1.62 in (1969) |