August weather in Williams Bay, WI
The average temperature in Williams Bay in August is 72.3°F (61.3°F–83.4°F). Average precipitation: 3.32 inches.
August is a summer month in Williams Bay, and is warmer than the annual average of 49.4°F. Daily temperatures swing about 22.1°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 13h 44m. For travel, August is a comfortable month to visit.
Avg High
83.4°F
Avg Low
61.3°F
Precipitation
3.32 in
Daylight
13h 44m
August records in Williams Bay
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 106.0°F (1988) | 46.9°F (1947) | 0.60 in (1945) |
| August 2 | 102.0°F (1988) | 50.0°F (1965) | 2.46 in (1972) |
| August 3 | 100.9°F (1988) | 48.9°F (1950) | 1.30 in (1959) |
| August 4 | 100.0°F (1988) | 44.1°F (1951) | 2.91 in (1952) |
| August 5 | 97.0°F (1947) | 46.0°F (1994) | 1.52 in (1979) |
| August 6 | 98.1°F (1947) | 44.1°F (1994) | 1.97 in (1951) |
| August 7 | 100.0°F (1988) | 48.0°F (1989) | 0.93 in (1980) |
| August 8 | 99.0°F (1988) | 39.0°F (1982) | 2.24 in (1965) |
| August 9 | 96.1°F (2001) | 44.1°F (1964) | 3.00 in (1995) |
| August 10 | 91.9°F (1958) | 48.9°F (1967) | 1.82 in (2021) |
| August 11 | 97.0°F (2002) | 46.0°F (1967) | 2.95 in (2020) |
| August 12 | 99.0°F (1995) | 45.0°F (1967) | 0.62 in (1997) |
| August 13 | 96.1°F (1995) | 46.9°F (1992) | 1.40 in (2002) |
| August 14 | 96.1°F (1988) | 46.9°F (1963) | 1.83 in (1987) |
| August 15 | 96.1°F (1965) | 45.0°F (1979) | 1.72 in (1951) |
| August 16 | 104.0°F (1988) | 43.0°F (1979) | 1.60 in (2001) |
| August 17 | 102.9°F (1988) | 48.0°F (1976) | 2.01 in (1995) |
| August 18 | 98.1°F (1947) | 43.0°F (1963) | 1.50 in (1990) |
| August 19 | 99.0°F (1983) | 48.0°F (1977) | 1.26 in (1978) |
| August 20 | 96.1°F (1947) | 43.0°F (1950) | 1.65 in (1958) |
| August 21 | 99.0°F (1955) | 46.0°F (1950) | 1.90 in (1975) |
| August 22 | 98.1°F (1947) | 46.9°F (2024) | 1.47 in (2002) |
| August 23 | 98.1°F (1947) | 46.9°F (1952) | 0.91 in (1971) |
| August 24 | 99.0°F (1947) | 44.1°F (1951) | 0.67 in (1971) |
| August 25 | 97.0°F (1991) | 44.1°F (1977) | 1.28 in (1983) |
| August 26 | 98.1°F (1991) | 44.1°F (1964) | 1.90 in (1987) |
| August 27 | 98.1°F (1991) | 42.1°F (1968) | 2.07 in (1950) |
| August 28 | 98.1°F (1984) | 39.9°F (1986) | 1.49 in (1976) |
| August 29 | 99.0°F (1984) | 39.9°F (1965) | 1.70 in (1975) |
| August 30 | 96.1°F (1953) | 45.0°F (1946) | 2.39 in (1957) |
| August 31 | 99.0°F (1953) | 42.1°F (1967) | 0.72 in (1945) |