Greenville Weather Forecast

    • 64
    • 82

    Rain Showers Likely

    • 61
    • 82

    Mostly Cloudy

    • 58
    • 82

    Slight Chance Rain Showers

    • 63
    • 82

    Chance Rain Showers

    • 66
    • 84

    Rain Showers Likely

    • 58
    • 78

    Patchy Fog

Today 12 Aug Mercer

Mostly cloudy. A chance of Showers and Thunderstorms. Highs in the lower 80s. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 12 Aug Mercer

Mostly cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a slight chance of Showers and Thunderstorms after midnight. Patchy fog after midnight. Humid with Lows in the mid 60s. Southwest Winds 5 to 10 Mph. Chance of rain 70 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

    71.4 °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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