Sunbury Weather Forecast

    • 21
    • 48

    Chance Snow Showers

    • 33
    • 41

    Rain

    • 27
    • 43

    Rain

    • 20
    • 36

    Partly Sunny

    • 32
    • 37

    Mostly Cloudy

    • 27
    • 53

    Mostly Cloudy

    • 26
    • 39

    Partly Sunny

Today 29 Jan Northumberland

Mostly sunny with a 50 percent chance of snow Showers. Little or no snow accumulation. Highs in the mid 40s. Temperature falling into the upper 30s late. West Winds around 20 Mph with Gusts up to 45 Mph.

Tonight 29 Jan Northumberland

Partly cloudy with a slight chance of snow Showers this Evening, then mostly clear. Lows around 20. Northwest Winds 10 to 15 Mph with Gusts up to 40 Mph. Chance of snow 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sunbury Temperature Statistics

January Temperature

Selinsgrove Penn Valley Airport (4.3 miles)

  • Lowest 21 January, 2025

    -13.3 °F

  • Average January

    24.4 °F

  • Highest 1 January, 2025

    44.7 °F

Climate (2020–Present)

Selinsgrove Penn Valley Airport (4.3 miles)

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  • Average Low 2020–2025

    42.4 °F

  • Average 2020–2025

    52.5 °F

  • Average High 2020–2025

    63 °F
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