Greenbrier Weather Forecast

    • 21
    • 36

    Increasing Clouds

    • 8
    • 35

    Partly Sunny

    • 16
    • 27

    Slight Chance Snow

    • 20
    • 35

    Mostly Cloudy

    • 17
    • 34

    Slight Chance Snow

    • 13
    • 29

    Mostly Cloudy

Today 3 Dec Northumberland

Mostly sunny. Highs in the mid 30s. West Winds around 5 Mph.

Tonight 3 Dec Northumberland

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 20s. Southwest Winds around 5 Mph.

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Greenbrier Temperature Statistics

December Temperature

Selinsgrove Penn Valley Airport (11.2 miles)

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Climate (2020–Present)

Selinsgrove Penn Valley Airport (11.2 miles)

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  • Average Low 2020–2025

    42.5 °F

  • Average 2020–2025

    52.7 °F

  • Average High 2020–2025

    63.2 °F
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