Lake Mendota Weather Forecast
- 69
- 85
Rain Showers Likely
- 54
- 79
Partly Sunny
- 56
- 75
Mostly Sunny
- 59
- 80
Partly Sunny
- 60
- 81
Mostly Sunny
- 66
- 85
Mostly Sunny
- 68
- 91
Mostly Sunny
Today 20 Jul Dane
Partly sunny with a 20 percent chance of Thunderstorms. Some Thunderstorms may be severe. Southwest Winds around 15 Mph.
Tonight 20 Jul Dane
Mostly cloudy in the evening then clearing. Showers likely and chance of Thunderstorms in the Evening, then slight chance of light Showers and Thunderstorms late in the evening. Some Thunderstorms may be severe. Lows in the upper 60s. West Winds 5 to 15 Mph. Gusts up to 30 Mph through around midnight. Chance of precipitation 70 percent.
Lake Mendota Temperature Statistics
July Temperature
Madison, Dane County Regional-Truax Field (4.3 miles)
Lowest 12 July, 2026
57.7 °FAverage July
77.1 °FHighest 15 July, 2026
95.6 °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
59.2 °F