Lake Wilhelm Weather Forecast

    • 65
    • 87

    Mostly Cloudy

    • 66
    • 85

    Rain Showers

    • 68
    • 86

    Rain Showers

    • 68
    • 89

    Rain Showers

    • 57
    • 83

    Chance Thunderstorms

    • 60
    • 83

    Chance Rain Showers

    • 56
    • 80

    Chance Thunderstorms

Today 8 Jun Mercer

Mostly sunny. Near steady temperature in the mid 80s. Southeast Winds 5 to 10 Mph.

Tonight 8 Jun Mercer

Mostly cloudy. Lows in the mid 60s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Wilhelm Temperature Statistics

June Temperature

Franklin, Venango Regional Airport (13.7 miles)

  • Lowest 3 June, 2026

    44.1 °F

  • Average June

    65.5 °F

  • Highest 4 June, 2026

    81 °F

Climate (2021–Present)

Franklin, Venango Regional Airport (13.7 miles)

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  • Average Low 2021–2026

    40.6 °F

  • Average 2021–2026

    49.3 °F

  • Average High 2021–2026

    58.2 °F
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