Greenville Weather Forecast

    • 54
    • 70

    Mostly Cloudy

    • 55
    • 77

    Partly Sunny

    • 61
    • 81

    Slight Chance Thunderstorms

    • 61
    • 82

    Chance Thunderstorms

    • 58
    • 80

    Mostly Sunny

    • 60
    • 80

    Partly Sunny

Today 24 Aug Mercer

Partly sunny. Unseasonably cool with Highs in the upper 60s. West Winds 10 to 15 Mph.

Tonight 24 Aug Mercer

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the mid 50s. Southwest Winds 5 to 10 Mph.

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Greenville Temperature Statistics

August Temperature

Port Meadville Airport (17.4 miles)

  • Lowest 4 August, 2026

    53.1 °F

  • Average August

    70.3 °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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