Grand Valley Weather Forecast

    • 56
    • 78

    Rain Showers

    • 47
    • 68

    Mostly Cloudy

    • 50
    • 74

    Mostly Sunny

    • 56
    • 80

    Partly Sunny

    • 59
    • 82

    Partly Sunny

    • 62
    • 82

    Chance Thunderstorms

    • 61
    • 83

    Chance Thunderstorms

Today 21 Jul Warren

Mostly cloudy with a chance of Showers and Thunderstorms. Near steady temperature in the mid 70s. Southwest Winds around 10 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 21 Jul Warren

Showers with Thunderstorms likely in the Evening, then a slight chance of Showers after midnight. Lows in the mid 50s. Southwest Winds 5 to 10 Mph with Gusts up to 25 Mph, becoming west after midnight. Chance of rain near 100 percent.

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Grand Valley Temperature Statistics

July Temperature

Franklin, Venango Regional Airport (28.6 miles)

  • Lowest 19 July, 2026

    55.9 °F

  • Average July

    74.1 °F

  • Highest 3 July, 2026

    93 °F

Climate (2021–2026)

Franklin, Venango Regional Airport (28.6 miles)

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  • Average Low 2021–2026

    40.6 °F

  • Average 2021–2026

    49.4 °F

  • Average High 2021–2026

    58.2 °F
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