Greenville Weather Forecast

    • 56
    • 77

    Becoming Sunny

    • 55
    • 79

    Mostly Sunny

    • 62
    • 84

    Partly Sunny

    • 63
    • 83

    Rain Showers Likely

    • 61
    • 80

    Rain Showers Likely

    • 61
    • 82

    Chance Thunderstorms

Today 29 Jul Mercer

Partly cloudy with a 20 percent chance of Showers. Highs in the mid 70s. North Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 29 Jul Mercer

Clear. Lows in the mid 50s. Northwest Winds 10 to 15 Mph, Diminishing to around 5 Mph after midnight.

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Greenville Temperature Statistics

July Temperature

Port Meadville Airport (17.4 miles)

  • Lowest 23 July, 2026

    50 °F

  • Average July

    72.4 °F

  • Highest 1 July, 2026

    91 °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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