Janesville Weather Forecast
- 70
- 89
Mostly Sunny
- 71
- 91
Mostly Sunny
- 72
- 91
Mostly Sunny
- 69
- 90
Chance Thunderstorms
- 68
- 85
Chance Thunderstorms
- 68
- 86
Chance Thunderstorms
Today 3 Jul Cumberland
Sunny. Highs in the upper 80s. West Winds around 5 Mph.
Tonight 3 Jul Cumberland
Mostly clear. Lows around 70. Light and variable Winds.
Janesville Temperature Statistics
July Temperature
Mattoon / Charleston, Coles County Memorial Airport (6.8 miles)
Lowest
–Average July
–Highest
–
Climate (2020–Present)
Mattoon / Charleston, Coles County Memorial Airport (6.8 miles)
Average Low 2020–2025
45.7 °FAverage 2020–2025
55 °FAverage High 2020–2025
64.4 °F