Lake Mills Weather Forecast
- 62
- 84
Chance Thunderstorms
- 64
- 83
Mostly Sunny
- 65
- 86
Slight Chance Thunderstorms
- 67
- 87
Slight Chance Thunderstorms
- 72
- 91
Chance Thunderstorms
- 69
- 89
Rain Showers Likely
- 64
- 84
Chance Thunderstorms
Today 30 Jun Jefferson
Partly sunny with a 20 percent chance of light Showers and Thunderstorms. Northwest Winds around 10 Mph.
Tonight 30 Jun Jefferson
Partly cloudy in the evening then clearing. Lows in the lower 60s. West Winds 5 to 10 Mph.
Lake Mills Temperature Statistics
June Temperature
Watertown (11.2 miles)
Lowest 1 June, 2025
38.7 °FAverage June
69.4 °FHighest 22 June, 2025
92.1 °F
Climate (2020–Present)
Watertown (11.2 miles)
Average Low 2020–2025
36.4 °FAverage 2020–2025
46.2 °FAverage High 2020–2025
55.3 °F