Halfway Lake Weather Forecast

    • 52
    • 73

    Slight Chance Rain Showers

    • 53
    • 70

    Partly Sunny

    • 53
    • 73

    Mostly Sunny

    • 58
    • 77

    Partly Sunny

    • 60
    • 78

    Rain Showers Likely

    • 58
    • 79

    Chance Rain Showers

Today 23 Aug Union

Mostly sunny. A chance of Showers in the morning. Highs in the upper 70s. West Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent.

Tonight 23 Aug Union

Cloudy with a chance of Showers and Thunderstorms. Near steady temperature in the mid 60s. South Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Halfway Lake Temperature Statistics

August Temperature

Selinsgrove Penn Valley Airport (20.5 miles)

  • Lowest 4 August, 2026

    57 °F

  • Average August

    72.9 °F

  • Highest 17 August, 2026

    89.1 °F

Climate (2021–2026)

Selinsgrove Penn Valley Airport (20.5 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    63.1 °F
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