Lebanon Weather Forecast

    • -1
    • 34

    Chance Snow Showers

    • 8
    • 21

    Partly Sunny

    • 15
    • 32

    Mostly Cloudy

    • 6
    • 34

    Mostly Cloudy

    • 1
    • 19

    Partly Sunny

    • 13
    • 23

    Mostly Cloudy

Today 4 Dec Southern Grafton

Mostly cloudy this Morning, then becoming partly sunny. A 50 percent chance of snow Showers. Highs in the lower 30s. Temperatures falling to around 19 this afternoon. West Winds around 10 Mph with Gusts up to 25 Mph, becoming northwest 15 to 20 Mph with Gusts up to 35 Mph this afternoon. Wind chill Values as low as 3 below this afternoon.

Tonight 4 Dec Southern Grafton

Partly cloudy in the Evening, then clearing. Cooler with Lows around 2 below. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph. Wind chill Values as low as 17 below.

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Lebanon Temperature Statistics

December Temperature

Lebanon Municipal Airport (2.5 miles)

  • Lowest 1 December, 2025

    19 °F

  • Average December

    31.7 °F

  • Highest 1 December, 2025

    37.9 °F

Climate (2020–Present)

Lebanon Municipal Airport (2.5 miles)

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  • Average Low 2020–2025

    38.2 °F

  • Average 2020–2025

    48.9 °F

  • Average High 2020–2025

    59.8 °F
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