Grand Valley Weather Forecast

    • 59
    • 77

    Rain Showers

    • 55
    • 81

    Partly Sunny

    • 60
    • 87

    Mostly Sunny

    • 64
    • 84

    Chance Thunderstorms

    • 65
    • 85

    Rain Showers Likely

    • 67
    • 88

    Chance Thunderstorms

Today 6 Jun Warren

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms in the Morning, then Showers with a chance of Thunderstorms in the afternoon. Some Thunderstorms may be severe in the afternoon. Highs in the upper 70s. Southwest Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 90 percent.

Tonight 6 Jun Warren

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Not as cool. Near steady temperature in the mid 60s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 40 percent.

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Grand Valley Temperature Statistics

June Temperature

Franklin, Venango Regional Airport (28.6 miles)

  • Lowest 3 June, 2026

    44.1 °F

  • Average June

    61.5 °F

  • Highest 3 June, 2026

    77 °F

Climate (2021–Present)

Franklin, Venango Regional Airport (28.6 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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