Perch Lake Weather Forecast
- 45
- 65
Increasing Clouds
- 49
- 66
Mostly Cloudy
- 48
- 69
Mostly Cloudy
- 49
- 64
Chance Rain Showers
- 51
- 68
Mostly Cloudy
- 55
- 72
Chance Rain Showers
Today 23 Sep Monroe
Patchy fog this morning. Mostly sunny. Highs in the mid 60s. East Winds 5 to 10 Mph.
Tonight 23 Sep Monroe
Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 40s. Light Winds.
Perch Lake Temperature Statistics
September Temperature
Sparta, Sparta / Fort McCoy Airport (3.1 miles)
Lowest 14 September, 2026
36.9 °FAverage September
67.3 °FHighest 1 September, 2026
91 °F
Climate (2021–2026)
Sparta, Sparta / Fort McCoy Airport (3.1 miles)
Average Low 2021–2026
35.3 °FAverage 2021–2026
47.7 °FAverage High 2021–2026
58.4 °F