Johannisburg Weather Forecast

    • 12
    • 30

    Increasing Clouds

    • 8
    • 24

    Mostly Cloudy

    • 4
    • 19

    Partly Sunny

    • 2
    • 17

    Partly Sunny

    • 14
    • 26

    Mostly Cloudy

    • 20
    • 34

    Mostly Cloudy

    • 26
    • 36

    Mostly Cloudy

Today 28 Jan Washington

Mostly sunny. Highs in the upper 20s. West Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 28 Jan Washington

Mostly cloudy. Not as cool with Lows around 11. South Winds around 5 Mph, becoming northeast after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johannisburg Temperature Statistics

January Temperature

Belleville, Scott AFB/MidAmerica Airport (15.5 miles)

  • Lowest 26 January, 2026

    -1.8 °F

  • Average January

    32.6 °F

  • Highest 6 January, 2026

    69.1 °F

Climate (2021–Present)

Belleville, Scott AFB/MidAmerica Airport (15.5 miles)

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  • Average Low 2021–2026

    47.5 °F

  • Average 2021–2026

    57.4 °F

  • Average High 2021–2026

    67.6 °F
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