Lake Mendota Weather Forecast
- 65
- 80
Chance Thunderstorms
- 62
- 82
Mostly Sunny
- 58
- 81
Mostly Sunny
- 61
- 81
Partly Sunny
- 65
- 80
Chance Rain Showers
- 68
- 83
Chance Rain Showers
Today 25 Aug Dane
Partly sunny. Patchy fog in the morning. Highs in the lower 80s. Southwest Winds up to 10 Mph.
Tonight 25 Aug Dane
Partly cloudy. A 50 percent chance of light Showers and Thunderstorms after midnight. Lows in the mid 60s. South Winds 5 to 15 Mph.
Lake Mendota Temperature Statistics
August Temperature
Madison, Dane County Regional-Truax Field (4.3 miles)
Lowest 20 August, 2026
53.7 °FAverage August
71.6 °FHighest 10 August, 2026
85.6 °F
Climate (2021–2026)
Madison, Dane County Regional-Truax Field (4.3 miles)
Average Low 2021–2026
39.9 °FAverage 2021–2026
49.8 °FAverage High 2021–2026
59.1 °F