Janesville Weather Forecast

    • 36
    • 59

    Rain Showers Likely

    • 23
    • 38

    Chance Flurries

    • 21
    • 38

    Mostly Sunny

    • 37
    • 47

    Partly Sunny

    • 33
    • 59

    Mostly Sunny

    • 39
    • 57

    Partly Sunny

    • 49
    • 65

    Partly Sunny

Today 8 Nov Cumberland

Mostly cloudy with a 20 percent chance of Showers. Cooler. Near steady temperature in the upper 50s. Northwest Winds around 5 Mph.

Tonight 8 Nov Cumberland

A slight chance of Thunderstorms this evening. Showers likely. Lows in the mid 30s. East Winds 5 to 10 Mph, increasing to west 15 to 20 Mph with Gusts up to 30 Mph after midnight. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Janesville Temperature Statistics

November Temperature

Mattoon / Charleston, Coles County Memorial Airport (6.8 miles)

  • Lowest 2 November, 2025

    30 °F

  • Average November

    48.5 °F

  • Highest 5 November, 2025

    70 °F

Climate (2020–Present)

Mattoon / Charleston, Coles County Memorial Airport (6.8 miles)

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  • Average Low 2020–2025

    45.9 °F

  • Average 2020–2025

    55.2 °F

  • Average High 2020–2025

    64.7 °F
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