Greenville Weather Forecast

    • 62
    • 75

    Chance Rain Showers

    • 62
    • 79

    Chance Rain Showers

    • 46
    • 69

    Rain Showers

    • 47
    • 68

    Partly Sunny

    • 45
    • 69

    Partly Sunny

    • 37
    • 60

    Partly Sunny

Today 30 Sep Mercer

Partly cloudy this Morning, then becoming mostly cloudy. Patchy fog this morning. Highs in the mid 70s. South Winds 5 to 10 Mph.

Tonight 30 Sep Mercer

Considerable cloudiness with a 40 percent chance of Showers. Lows in the lower 60s. South Winds 5 to 10 Mph.

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Greenville Temperature Statistics

September Temperature

Port Meadville Airport (17.4 miles)

  • Lowest 25 September, 2026

    41 °F

  • Average September

    64.7 °F

  • Highest 2 September, 2026

    87.1 °F

Climate (2021–2026)

Port Meadville Airport (17.4 miles)

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  • Average Low 2021–2026

    42.7 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    59.2 °F
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