Jamestown Weather Forecast

    • 71
    • 92

    Chance Thunderstorms

    • 69
    • 88

    Rain Showers Likely

    • 63
    • 81

    Rain Showers Likely

    • 55
    • 78

    Partly Sunny

    • 57
    • 78

    Mostly Sunny

    • 60
    • 79

    Partly Sunny

    • 62
    • 79

    Partly Sunny

Today 2 Sep Mercer

Partly sunny with a chance of Showers and Thunderstorms. Unseasonably warm with Highs in the upper 80s. Southwest Winds 5 to 10 Mph. Chance of rain 30 percent. Heat index Values up to 103.

Tonight 2 Sep Mercer

Mostly cloudy. Scattered Showers and Thunderstorms this Evening, then a chance of Showers and Thunderstorms. Some Thunderstorms may be severe with damaging Winds and large hail this evening. Warm with Lows in the lower 70s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

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Jamestown Temperature Statistics

September Temperature

Port Meadville Airport (14.9 miles)

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Climate (2021–2026)

Port Meadville Airport (14.9 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    59.2 °F
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