Johannisburg Weather Forecast

    • 24
    • 44

    Cloudy

    • 26
    • 35

    Partly Sunny

    • 41
    • 52

    Mostly Cloudy

    • 28
    • 50

    Chance Rain/Snow

    • 18
    • 38

    Slight Chance Rain/Snow

    • 7
    • 26

    Partly Sunny

Today 7 Dec Washington

Cloudy with a slight chance of very light drizzle. Highs in the lower 40s. Temperature falling into the upper 30s. Northwest Winds 10 to 15 Mph.

Tonight 7 Dec Washington

Mostly cloudy. A slight chance of drizzle and snow in the evening. Cooler with Lows in the lower 20s. North Winds 10 to 15 Mph. Chance of snow 20 percent.

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Johannisburg Temperature Statistics

December Temperature

Belleville, Scott AFB/MidAmerica Airport (15.5 miles)

  • Lowest 5 December, 2025

    10.4 °F

  • Average December

    26.2 °F

  • Highest 5 December, 2025

    41.9 °F

Climate (2020–Present)

Belleville, Scott AFB/MidAmerica Airport (15.5 miles)

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  • Average Low 2020–2025

    47.6 °F

  • Average 2020–2025

    57.4 °F

  • Average High 2020–2025

    67.6 °F
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