Greenville Weather Forecast

    • 72
    • 94

    Becoming Sunny

    • 68
    • 94

    Mostly Sunny

    • 66
    • 90

    Partly Sunny

    • 67
    • 90

    Partly Sunny

    • 65
    • 87

    Rain Showers Likely

    • 62
    • 82

    Chance Thunderstorms

Today 14 Jul Mercer

Mostly sunny. Hot with Highs in the lower 90s. Southwest Winds 5 to 10 Mph. Heat index Values in the upper 90s in the afternoon.

Tonight 14 Jul Mercer

Mainly clear. Humid with Lows in the lower 70s. West Winds 5 to 10 Mph.

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Greenville Temperature Statistics

July Temperature

Port Meadville Airport (17.4 miles)

  • Lowest 8 July, 2026

    64.9 °F

  • Average July

    75.6 °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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