Greenville Weather Forecast

    • 48
    • 65

    Partly Sunny

    • 43
    • 67

    Mostly Sunny

    • 47
    • 69

    Mostly Sunny

    • 48
    • 70

    Mostly Sunny

    • 49
    • 69

    Mostly Sunny

    • 50
    • 71

    Mostly Sunny

Today 23 Sep Mercer

Partly sunny this Morning, then becoming partly cloudy. Highs in the mid 60s. East Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 23 Sep Mercer

Partly cloudy. Lows in the upper 40s. East Winds 5 to 10 Mph.

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Greenville Temperature Statistics

September Temperature

Port Meadville Airport (17.4 miles)

  • Lowest 7 September, 2026

    52 °F

  • Average September

    67.8 °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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