Greenville Weather Forecast

    • 67
    • 83

    Rain Showers Likely

    • 72
    • 86

    Mostly Cloudy

    • 72
    • 89

    Chance Rain Showers

    • 70
    • 91

    Chance Thunderstorms

    • 65
    • 87

    Chance Thunderstorms

    • 62
    • 82

    Slight Chance Thunderstorms

    • 60
    • 80

    Mostly Sunny

Today 30 Aug Mercer

Showers likely. Highs in the lower 80s. West Winds around 5 Mph. Chance of rain 70 percent.

Tonight 30 Aug Mercer

Considerable cloudiness with a 50 percent chance of Showers. Lows in the upper 60s. Northeast Winds around 5 Mph, becoming southeast after midnight.

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Greenville Temperature Statistics

August Temperature

Port Meadville Airport (17.4 miles)

  • Lowest 4 August, 2026

    53.1 °F

  • Average August

    68.9 °F

  • Highest 6 August, 2026

    82.9 °F

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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