Winfield Weather Forecast

    • 60
    • 84

    Chance Rain Showers

    • 47
    • 72

    Mostly Sunny

    • 54
    • 74

    Mostly Sunny

    • 62
    • 80

    Partly Sunny

    • 63
    • 82

    Chance Rain Showers

    • 59
    • 80

    Chance Rain Showers

Today 13 Sep Union

Mostly cloudy with Showers likely this Morning, then mostly sunny this afternoon. Warmer with Highs in the lower 80s. West Winds around 5 Mph. Chance of rain 60 percent.

Tonight 13 Sep Union

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly cloudy with a chance of Showers after midnight. Humid with Lows in the upper 50s. Northwest Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 40 percent.

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Winfield Temperature Statistics

September Temperature

Selinsgrove Penn Valley Airport (6.2 miles)

  • Lowest 8 September, 2026

    50 °F

  • Average September

    70.6 °F

  • Highest 1 September, 2026

    90 °F

Climate (2021–2026)

Selinsgrove Penn Valley Airport (6.2 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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