Janesville Weather Forecast

    • 31
    • 53

    Mostly Sunny

    • 32
    • 54

    Sunny

    • 36
    • 56

    Sunny

    • 42
    • 60

    Partly Sunny

    • 45
    • 64

    Partly Sunny

    • 46
    • 66

    Partly Sunny

Today 15 Nov Cumberland

Sunny. Highs in the mid 50s. Light and variable Winds, becoming north around 5 Mph this afternoon.

Tonight 15 Nov Cumberland

Mostly clear. Lows in the upper 20s. Light and variable Winds.

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Janesville Temperature Statistics

November Temperature

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

  • Lowest 13 November, 2026

    28 °F

  • Average November

    52.5 °F

  • Highest 3 November, 2026

    77.6 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    55.6 °F

  • Average High 2021–2026

    65.3 °F
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