Lebanon Weather Forecast

    • 28
    • 44

    Partly Sunny

    • 47
    • 55

    Rain Showers Likely

    • 45
    • 58

    Chance Rain Showers

    • 54
    • 60

    Chance Rain Showers

    • 57
    • 67

    Slight Chance Rain Showers

    • 51
    • 65

    Mostly Cloudy

Today 21 Dec Marion

Colder, sunny. Highs in the mid 40s. North Winds up to 5 Mph.

Tonight 21 Dec Marion

Mostly clear. Lows in the upper 20s. East Winds up to 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lebanon Temperature Statistics

December Temperature

Lebanon-Springfield Airport (4.3 miles)

  • Lowest 14 December, 2025

    6.8 °F

  • Average December

    33.1 °F

  • Highest 17 December, 2025

    57.2 °F

Climate (2020–Present)

Lebanon-Springfield Airport (4.3 miles)

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  • Average Low 2020–2025

    48.1 °F

  • Average 2020–2025

    57.7 °F

  • Average High 2020–2025

    68.1 °F
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