Rib Mountain State Park Weather Forecast
- 42
- 66
Becoming Sunny
- 56
- 68
Rain Showers
- 45
- 69
Mostly Cloudy
- 52
- 68
Mostly Cloudy
- 50
- 70
Slight Chance Rain Showers
- 50
- 70
Chance Rain Showers
Today 13 Sep Marathon
Mostly cloudy in the morning then clearing. Highs in the middle 60s. Northwest wind 10 to 15 Mph.
Tonight 13 Sep Marathon
Colder. Clear. Lows in the upper 30s. Light and variable wind.
Rib Mountain State Park Temperature Statistics
September Temperature
Wausau Downtown Airport (3.1 miles)
Lowest 11 September, 2026
52 °FAverage September
71.1 °FHighest 1 September, 2026
89.7 °F
Climate (2021–2026)
Wausau Downtown Airport (3.1 miles)
Average Low 2021–2026
37.4 °FAverage 2021–2026
46.8 °FAverage High 2021–2026
56 °F