Greenville Weather Forecast

    • 67
    • 87

    Rain Showers

    • 67
    • 87

    Thunderstorms

    • 66
    • 83

    Rain Showers

    • 64
    • 84

    Chance Thunderstorms

    • 66
    • 84

    Chance Thunderstorms

    • 67
    • 86

    Rain Showers Likely

Today 5 Aug Mercer

Mostly sunny in the Morning, then partly sunny with numerous Showers and scattered Thunderstorms in the afternoon. Humid with Highs in the mid 80s. South Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 5 Aug Mercer

Mostly cloudy with scattered Showers. Scattered Thunderstorms, mainly in the evening. Humid with Lows in the upper 60s. South Winds around 5 Mph. Chance of rain 50 percent.

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Greenville Temperature Statistics

August Temperature

Port Meadville Airport (17.4 miles)

  • Lowest 2 August, 2026

    64.9 °F

  • Average August

    71.7 °F

  • Highest 1 August, 2026

    80.1 °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

    59.3 °F
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