Halfway Lake Weather Forecast

    • 43
    • 46

    Rain Showers

    • 52
    • 63

    Rain Showers

    • 57
    • 77

    Chance Rain Showers

    • 59
    • 79

    Mostly Cloudy

    • 58
    • 81

    Slight Chance Rain Showers

    • 51
    • 78

    Slight Chance Rain Showers

Today 23 May Union

Showers, cooler with Highs around 50. East Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain near 100 percent.

Tonight 23 May Union

Showers likely in the Evening, then Showers after midnight. Lows in the mid 40s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain near 100 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 12 May, 2026

    32 °F

  • Average May

    58 °F

  • Highest 18 May, 2026

    91 °F

Climate (2021–Present)

Selinsgrove Penn Valley Airport (20.5 miles)

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  • Average Low 2021–2026

    42.4 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    63.1 °F
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