Johnsburg Weather Forecast

    • 3
    • 20

    Snow

    • -4
    • 9

    Cold

    • 11
    • 23

    Mostly Cloudy

    • 20
    • 35

    Chance Rain/Snow

    • 10
    • 28

    Slight Chance Snow

    • 4
    • 19

    Slight Chance Snow

Today 6 Dec Mower

Mostly cloudy. Snow likely in the afternoon. Snow accumulation up to 1 inch. Colder with Highs around 19. Light Winds, becoming east in the afternoon. Chance of snow 70 percent.

Tonight 6 Dec Mower

Mostly cloudy. Lows around 10 above. Northwest Winds 5 to 10 Mph.

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Johnsburg Temperature Statistics

December Temperature

Austin Municipal (13.7 miles)

  • Lowest 3 December, 2025

    -0.4 °F

  • Average December

    16.7 °F

  • Highest 3 December, 2025

    30.2 °F

Climate (2020–Present)

Austin Municipal (13.7 miles)

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  • Average Low 2020–2025

    38.7 °F

  • Average 2020–2025

    48 °F

  • Average High 2020–2025

    57.4 °F
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