Tionesta Lake Weather Forecast

    • 7
    • 18

    Gradual Clearing

    • 23
    • 29

    Mostly Cloudy

    • 25
    • 38

    Mostly Cloudy

    • 20
    • 47

    Rain/Snow

    • 15
    • 27

    Mostly Cloudy

    • 29
    • 39

    Chance Rain Showers

Today 15 Dec Forest

Considerable cloudiness. A chance of Flurries this afternoon. Very cold with Highs around 18. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 15 Dec Forest

Partly cloudy. Very cold with Lows around 7 above. Southwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Tionesta Lake Temperature Statistics

December Temperature

Franklin, Venango Regional Airport (23.6 miles)

  • Lowest 5 December, 2025

    5 °F

  • Average December

    23.7 °F

  • Highest 10 December, 2025

    35.1 °F

Climate (2020–Present)

Franklin, Venango Regional Airport (23.6 miles)

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  • Average Low 2020–2025

    40.7 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    58.1 °F
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