Greenville Weather Forecast

    • 49
    • 69

    Becoming Sunny

    • 51
    • 75

    Mostly Sunny

    • 59
    • 80

    Partly Sunny

    • 62
    • 83

    Partly Sunny

    • 63
    • 83

    Chance Thunderstorms

    • 63
    • 82

    Chance Thunderstorms

Today 22 Jul Mercer

Partly sunny. A slight chance of Showers early. Unseasonably cool with Highs in the upper 60s. Northwest Winds around 10 Mph. Chance of rain 20 percent.

Tonight 22 Jul Mercer

Mainly clear. Cool with Lows in the upper 40s. Northwest Winds 5 to 10 Mph in the Evening, becoming light and variable.

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Greenville Temperature Statistics

July Temperature

Port Meadville Airport (17.4 miles)

  • Lowest 20 July, 2026

    55 °F

  • Average July

    74.5 °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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