Lewisburg Weather Forecast

    • 63
    • 84

    Slight Chance Rain

    • 57
    • 73

    Rain Likely

    • 60
    • 79

    Partly Sunny

    • 63
    • 81

    Chance Rain Showers

    • 58
    • 79

    Slight Chance Thunderstorms

    • 57
    • 77

    Partly Sunny

    • 59
    • 77

    Partly Sunny

Today 19 Aug Union

Mostly cloudy. Near steady temperature in the lower 80s. West Winds 5 to 10 Mph.

Tonight 19 Aug Union

Mostly cloudy. Lows in the lower 60s. Northwest Winds around 5 Mph.

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Lewisburg Temperature Statistics

August Temperature

Selinsgrove Penn Valley Airport (9.9 miles)

  • Lowest 4 August, 2026

    57 °F

  • Average August

    73.4 °F

  • Highest 17 August, 2026

    89.1 °F

Climate (2021–2026)

Selinsgrove Penn Valley Airport (9.9 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    63.1 °F
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