Greenville Weather Forecast

    • 68
    • 89

    Rain Showers Likely

    • 64
    • 82

    Rain Showers

    • 55
    • 77

    Partly Sunny

    • 56
    • 77

    Mostly Sunny

    • 59
    • 79

    Partly Sunny

    • 63
    • 80

    Mostly Cloudy

Today 3 Sep Mercer

Partly sunny with a chance of Thunderstorms. Showers Likely, mainly in the morning. Unseasonably warm. Humid with Highs in the upper 80s. West Winds 5 to 10 Mph. Chance of rain 60 percent. Heat index Values in the mid 90s in the afternoon.

Tonight 3 Sep Mercer

Mostly cloudy with a chance of Showers. A chance of Thunderstorms, mainly in the evening. Patchy fog after midnight. Warm with Lows in the upper 60s. Southwest Winds around 5 Mph. Chance of rain 50 percent.

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Greenville Temperature Statistics

September Temperature

Port Meadville Airport (17.4 miles)

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Climate (2021–2026)

Port Meadville Airport (17.4 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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