Lake Wausau Weather Forecast
- 45
- 68
Decreasing Clouds
- 45
- 67
Partly Sunny
- 52
- 68
Mostly Cloudy
- 52
- 69
Mostly Cloudy
- 41
- 61
Mostly Cloudy
- 34
- 51
Partly Sunny
Today 21 Oct Marathon
Mostly sunny. Highs in the upper 60s. Light and variable wind.
Tonight 21 Oct Marathon
Clear. Patchy fog after midnight. Lows in the lower 40s. Light and variable wind.
Lake Wausau Temperature Statistics
October Temperature
Wausau Downtown Airport (0.6 miles)
Lowest 17 October, 2026
28.7 °FAverage October
55.6 °FHighest 12 October, 2026
84.7 °F
Climate (2021–2026)
Wausau Downtown Airport (0.6 miles)
Average Low 2021–2026
37.3 °FAverage 2021–2026
46.7 °FAverage High 2021–2026
56 °F