Halfway Lake Weather Forecast

    • 39
    • 60

    Partly Sunny

    • 44
    • 60

    Mostly Cloudy

    • 51
    • 68

    Mostly Sunny

    • 40
    • 66

    Partly Sunny

    • 43
    • 61

    Mostly Cloudy

    • 49
    • 62

    Chance Rain Showers

Today 27 Oct Union

Sunny. Highs in the lower 60s. Northeast Winds around 5 Mph.

Tonight 27 Oct Union

Partly cloudy. Lows around 40. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Halfway Lake Temperature Statistics

October Temperature

Selinsgrove Penn Valley Airport (20.5 miles)

  • Lowest 22 October, 2026

    28.9 °F

  • Average October

    54.1 °F

  • Highest 2 October, 2026

    81 °F

Climate (2021–2026)

Selinsgrove Penn Valley Airport (20.5 miles)

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  • Average Low 2021–2026

    42.2 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    63.1 °F
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