Greenville Weather Forecast

    • 72
    • 90

    Chance Thunderstorms

    • 72
    • 92

    Rain Showers Likely

    • 67
    • 87

    Chance Thunderstorms

    • 63
    • 83

    Slight Chance Thunderstorms

    • 59
    • 80

    Partly Sunny

    • 60
    • 80

    Slight Chance Rain Showers

Today 1 Sep Mercer

Partly sunny with a chance of Showers with a slight chance of Thunderstorms this Morning, then partly cloudy this afternoon. Unseasonably warm with Highs in the upper 80s. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent. Heat index Values in the mid 90s this afternoon.

Tonight 1 Sep Mercer

Partly cloudy in the Evening, then mostly cloudy with a chance of Showers and Thunderstorms after midnight. Warm with Lows in the lower 70s. Southwest Winds around 5 Mph. Chance of rain 40 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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