Greenville Weather Forecast

    • 61
    • 81

    Rain Showers

    • 62
    • 82

    Chance Thunderstorms

    • 61
    • 81

    Chance Thunderstorms

    • 54
    • 79

    Partly Sunny

    • 60
    • 79

    Chance Thunderstorms

    • 63
    • 82

    Chance Thunderstorms

Today 11 Aug Mercer

Mostly cloudy. Patchy fog in the morning. A chance of Showers with a slight chance of Thunderstorms in the Morning, then a chance of Showers and Thunderstorms in the afternoon. Humid with Highs in the lower 80s. West Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 11 Aug Mercer

Considerable cloudiness. Showers with a chance of Thunderstorms in the Evening, then a slight chance of Showers and Thunderstorms after midnight. Patchy fog. Humid with Lows in the lower 60s. West Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 80 percent.

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Greenville Temperature Statistics

August Temperature

Port Meadville Airport (17.4 miles)

  • Lowest 4 August, 2026

    53.1 °F

  • Average August

    71.1 °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

    42.7 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    59.3 °F
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