Sugar River Forest Preserve Weather Forecast
- 71
- 91
Chance Thunderstorms
- 72
- 91
Chance Thunderstorms
- 70
- 88
Chance Thunderstorms
- 68
- 87
Slight Chance Thunderstorms
- 64
- 84
Partly Sunny
- 62
- 82
Partly Sunny
Today 1 Sep Winnebago
Mostly cloudy in the Morning, then becoming partly cloudy. A slight chance of Showers in the late morning and afternoon. A slight chance of Thunderstorms in the afternoon. Humid with Highs around 90. Southwest Winds 5 to 10 Mph, increasing to 10 to 15 Mph in the afternoon. Chance of precipitation 20 percent.
Tonight 1 Sep Winnebago
Partly cloudy in the Evening, then becoming mostly clear. Humid with Lows in the lower 70s. Southwest Winds around 5 Mph.
Sugar River Forest Preserve Temperature Statistics
September Temperature
Janesville-Rock County (14.3 miles)
Lowest
–Average September
–Highest
–
Climate (2021–2026)
Janesville-Rock County (14.3 miles)
Average Low 2021–2026
40.3 °FAverage 2021–2026
48.7 °FAverage High 2021–2026
60.3 °F