Halfway Lake Weather Forecast

    • 48
    • 59

    Rain Showers

    • 42
    • 66

    Chance Rain Showers

    • 36
    • 58

    Partly Sunny

    • 41
    • 59

    Rain Showers

    • 45
    • 59

    Rain Showers

    • 45
    • 60

    Rain Showers Likely

Today 9 May Union

Mostly cloudy with scattered Showers. Highs in the lower 60s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent.

Tonight 9 May Union

Partly cloudy in the Evening, then mostly cloudy with isolated Showers after midnight. Lows in the upper 40s. Southwest Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Halfway Lake Temperature Statistics

May Temperature

Selinsgrove Penn Valley Airport (20.5 miles)

  • Lowest 1 May, 2026

    34 °F

  • Average May

    54 °F

  • Highest 5 May, 2026

    80.1 °F

Climate (2021–Present)

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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