Greenville Weather Forecast

    • 67
    • 90

    Thunderstorms Likely

    • 66
    • 84

    Rain Showers

    • 65
    • 84

    Rain Showers

    • 65
    • 83

    Chance Rain Showers

    • 65
    • 85

    Chance Rain Showers

    • 67
    • 86

    Chance Thunderstorms

Today 4 Jul Mercer

Partly sunny. Showers and Thunderstorms likely this afternoon. Highs around 90. West Winds 5 to 10 Mph. Chance of rain 70 percent. Heat index Values in the upper 90s.

Tonight 4 Jul Mercer

Mostly cloudy. Showers and Thunderstorms likely in the Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Patchy fog after midnight. Humid with Lows in the upper 60s. Northwest Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 70 percent.

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Greenville Temperature Statistics

July Temperature

Port Meadville Airport (17.4 miles)

  • Lowest 2 July, 2026

    73.9 °F

  • Average July

    82.4 °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

    59.2 °F
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