Cornplanter State Forest Weather Forecast

    • 15
    • 36

    Snow Showers

    • 22
    • 38

    Mostly Cloudy

    • 14
    • 29

    Mostly Cloudy

    • 22
    • 30

    Mostly Cloudy

    • 28
    • 40

    Slight Chance Rain

    • 29
    • 38

    Mostly Cloudy

Today 19 Dec Forest

Considerable cloudiness. Snow Showers and rain in the Morning, then a chance of snow Showers in the afternoon. Snow accumulation less than an inch. Highs in the upper 30s. Temperatures falling into the lower 20s in the afternoon. West Winds 10 to 15 Mph with Gusts up to 35 Mph. Chance of precipitation 90 percent.

Tonight 19 Dec Forest

Mostly cloudy. A chance of snow Showers in the evening. Snow accumulation less than an inch. Much Colder. Near steady temperature around 19. West Winds 10 to 15 Mph. Gusts up to 35 Mph, decreasing to 25 Mph after midnight. Chance of snow 50 percent.

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Cornplanter State Forest Temperature Statistics

December Temperature

Franklin, Venango Regional Airport (21.7 miles)

  • Lowest 5 December, 2025

    5 °F

  • Average December

    22.1 °F

  • Highest 10 December, 2025

    35.1 °F

Climate (2020–Present)

Franklin, Venango Regional Airport (21.7 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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