Lebanon Weather Forecast

    • 32
    • 54

    Increasing Clouds

    • 44
    • 49

    Rain

    • 32
    • 53

    Chance Rain

    • 41
    • 50

    Mostly Cloudy

    • 41
    • 63

    Mostly Cloudy

    • 32
    • 56

    Partly Sunny

    • 36
    • 46

    Partly Sunny

Today 29 Jan St. Clair

Sunny. Highs in the mid 50s. West Winds around 5 Mph.

Tonight 29 Jan St. Clair

Mostly clear in the Evening, then becoming mostly cloudy. Lows in the mid 30s. Southeast Winds around 5 Mph.

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  • Temperature Real-Time

Lebanon Temperature Statistics

January Temperature

Belleville, Scott AFB/MidAmerica Airport (4.3 miles)

  • Lowest 15 January, 2025

    2.7 °F

  • Average January

    25.7 °F

  • Highest 25 January, 2025

    50.4 °F

Climate (2020–Present)

Belleville, Scott AFB/MidAmerica Airport (4.3 miles)

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  • Average Low 2020–2025

    47.1 °F

  • Average 2020–2025

    56.9 °F

  • Average High 2020–2025

    67 °F
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