Lake Wilhelm Weather Forecast

    • 63
    • 79

    Rain Showers

    • 61
    • 82

    Rain Showers

    • 51
    • 73

    Rain Showers Likely

    • 42
    • 60

    Chance Rain Showers

    • 41
    • 62

    Mostly Sunny

    • 47
    • 67

    Mostly Cloudy

Today 15 May Mercer

Partly cloudy with a chance of Showers. A slight chance of Thunderstorms this afternoon. Highs around 80. South Winds around 5 Mph. Chance of rain 30 percent.

Tonight 15 May Mercer

Mainly clear with a chance of Showers with a slight chance of Thunderstorms in the Evening, then cloudy with Showers with a chance of Thunderstorms after midnight. Warm with Lows in the lower 60s. Southeast Winds 5 to 10 Mph. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Wilhelm Temperature Statistics

May Temperature

Franklin, Venango Regional Airport (13.7 miles)

  • Lowest 9 May, 2025

    36 °F

  • Average May

    57.4 °F

  • Highest 1 May, 2025

    79 °F

Climate (2020–Present)

Franklin, Venango Regional Airport (13.7 miles)

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  • Average Low 2020–2025

    41.2 °F

  • Average 2020–2025

    49.8 °F

  • Average High 2020–2025

    58.7 °F
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