Janesville Weather Forecast

    • 13
    • 37

    Becoming Sunny

    • 18
    • 26

    Partly Sunny

    • 26
    • 37

    Partly Sunny

    • 34
    • 47

    Partly Sunny

    • 35
    • 55

    Chance Rain

    • 28
    • 44

    Slight Chance Rain

Today 6 Feb Cumberland

Partly sunny this Morning, then becoming mostly cloudy. Not as cool with Highs in the upper 30s. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 6 Feb Cumberland

Mostly cloudy in the Evening, then clearing. Lows around 14. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Janesville Temperature Statistics

February Temperature

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

  • Lowest 1 February, 2026

    1.9 °F

  • Average February

    22.8 °F

  • Highest 2 February, 2026

    32 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    45.6 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    64.5 °F
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