Darien Weather Forecast
- 41
- 67
Becoming Sunny
- 48
- 67
Partly Sunny
- 50
- 63
Rain Showers Likely
- 48
- 60
Chance Rain Showers
- 51
- 68
Chance Rain Showers
- 50
- 76
Slight Chance Rain Showers
- 50
- 74
Mostly Sunny
Today 25 May Walworth
Partly sunny. East Winds 5 to 10 Mph.
Tonight 25 May Walworth
Mostly clear. Lows in the lower 40s. East Winds up to 10 Mph.
Darien Temperature Statistics
May Temperature
Janesville-Rock County (16.8 miles)
Lowest 9 May, 2025
32 °FAverage May
53.9 °FHighest 15 May, 2025
91.4 °F
Climate (2020–Present)
Janesville-Rock County (16.8 miles)
Average Low 2020–2025
40.6 °FAverage 2020–2025
48.9 °FAverage High 2020–2025
60.4 °F