Greenville Weather Forecast

    • 59
    • 81

    Rain Showers

    • 54
    • 74

    Rain Showers Likely

    • 54
    • 71

    Partly Sunny

    • 54
    • 78

    Partly Sunny

    • 60
    • 81

    Mostly Cloudy

    • 62
    • 83

    Chance Thunderstorms

    • 60
    • 81

    Chance Rain Showers

Today 22 Aug Mercer

Showers and Thunderstorms likely. Highs around 80. Temperatures falling into the mid 70s late. South Winds 10 to 15 Mph. Chance of rain 70 percent.

Tonight 22 Aug Mercer

Thunderstorms likely late this evening. Showers likely. Near steady temperature in the lower 60s. Southwest Winds 5 to 10 Mph. Gusts up to 25 Mph late this evening. 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

    70.7 °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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