Greenville Weather Forecast

    • 47
    • 66

    Increasing Clouds

    • 46
    • 70

    Partly Sunny

    • 54
    • 73

    Partly Sunny

    • 44
    • 68

    Mostly Cloudy

    • 51
    • 69

    Cloudy

    • 53
    • 68

    Rain Showers Likely

Today 27 Oct Mercer

Mostly sunny. Highs in the mid 60s. East Winds around 5 Mph in the Morning, becoming light and variable.

Tonight 27 Oct Mercer

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 40s. East Winds around 5 Mph.

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Greenville Temperature Statistics

October Temperature

Port Meadville Airport (17.4 miles)

  • Lowest 18 October, 2026

    34 °F

  • Average October

    55 °F

  • Highest 13 October, 2026

    81 °F

Climate (2021–2026)

Port Meadville Airport (17.4 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.2 °F
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