Johnsburg Weather Forecast

    • 23
    • 36

    Mostly Cloudy

    • 30
    • 36

    Cloudy

    • 32
    • 36

    Slight Chance Rain

    • 33
    • 40

    Mostly Cloudy

    • 12
    • 44

    Mostly Cloudy

    • 3
    • 17

    Blustery

    • 7
    • 16

    Partly Sunny

Today 23 Dec Mower

Mostly sunny. Highs in the lower 30s. Temperature falling into the upper 20s late. Northwest Winds 10 to 15 Mph.

Tonight 23 Dec Mower

Mostly cloudy. Lows in the lower 20s. North Winds 5 to 10 Mph, becoming southeast after midnight.

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Johnsburg Temperature Statistics

December Temperature

Austin Municipal (13.7 miles)

  • Lowest 14 December, 2025

    -9.8 °F

  • Average December

    16.3 °F

  • Highest 16 December, 2025

    41.7 °F

Climate (2020–Present)

Austin Municipal (13.7 miles)

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  • Average Low 2020–2025

    38.6 °F

  • Average 2020–2025

    48 °F

  • Average High 2020–2025

    57.4 °F
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