Diamond Lake Weather Forecast
- 28
- 43
Increasing Clouds
- 26
- 44
Areas Freezing Fog
- 30
- 39
Mostly Cloudy
- 35
- 45
Mostly Cloudy
- 8
- 47
Breezy
- 4
- 14
Blustery
- 12
- 21
Mostly Cloudy
Today 23 Dec Minnehaha
Mostly sunny. Near steady temperature in the upper 30s. Northeast Winds 5 to 10 Mph.
Tonight 23 Dec Minnehaha
Partly cloudy this Evening, then becoming mostly cloudy. Lows in the upper 20s. Southeast Winds 10 to 15 Mph.
Diamond Lake Temperature Statistics
December Temperature
Madison Municipal Airport (11.8 miles)
Lowest 3 December, 2025
-9.4 °FAverage December
18.5 °FHighest 16 December, 2025
46.4 °F
Climate (2020–Present)
Madison Municipal Airport (11.8 miles)
Average Low 2020–2025
37.3 °FAverage 2020–2025
47.5 °FAverage High 2020–2025
57.8 °F