Greenville Weather Forecast

    • 54
    • 78

    Becoming Sunny

    • 61
    • 84

    Mostly Sunny

    • 66
    • 86

    Chance Thunderstorms

    • 66
    • 85

    Rain Showers Likely

    • 65
    • 83

    Rain Showers Likely

    • 65
    • 84

    Chance Thunderstorms

Today 3 Aug Mercer

Mostly cloudy this Morning, then clearing. Highs in the upper 70s. Northwest Winds 5 to 10 Mph.

Tonight 3 Aug Mercer

Clear. Areas of fog after midnight. Lows in the mid 50s. North Winds 5 to 10 Mph in the Evening, becoming light and variable.

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Greenville Temperature Statistics

August Temperature

Port Meadville Airport (17.4 miles)

  • Lowest 1 August, 2026

    66.9 °F

  • Average August

    72.8 °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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