Janesville Weather Forecast

    • 63
    • 73

    Thunderstorms Likely

    • 58
    • 79

    Rain Showers

    • 59
    • 79

    Thunderstorms Likely

    • 50
    • 72

    Chance Rain Showers

    • 47
    • 64

    Chance Rain Showers

    • 48
    • 66

    Chance Rain Showers

Today 6 May Cumberland

Mostly cloudy with a chance of Showers. A slight chance of Thunderstorms in the Morning, then a chance of Thunderstorms in the afternoon. Highs in the lower 70s. East Winds around 10 Mph. Chance of rain 50 percent.

Tonight 6 May Cumberland

Cloudy with a chance of Showers and Thunderstorms. Lows in the upper 50s. Northeast Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Janesville Temperature Statistics

May Temperature

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

  • Lowest 2 May, 2024

    57.9 °F

  • Average May

    70 °F

  • Highest 2 May, 2024

    82 °F

Climate (2019–Present)

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

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  • Average Low 2019–2024

    45.9 °F

  • Average 2019–2024

    54.9 °F

  • Average High 2019–2024

    64 °F
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