Greenville Weather Forecast

    • 35
    • 64

    Mostly Sunny

    • 42
    • 65

    Mostly Sunny

    • 32
    • 63

    Mostly Sunny

    • 34
    • 64

    Mostly Sunny

    • 39
    • 66

    Partly Sunny

    • 43
    • 68

    Partly Sunny

    • 40
    • 65

    Mostly Cloudy

Today 21 Oct Mercer

Sunny. Near steady temperature in the lower 60s. North Winds around 5 Mph.

Tonight 21 Oct Mercer

Clear. Patchy frost after midnight. Lows in the mid 30s. North 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

    56.3 °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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