Greenville Weather Forecast

    • 35
    • 69

    Sunny

    • 37
    • 68

    Mostly Sunny

    • 39
    • 64

    Mostly Sunny

    • 36
    • 63

    Mostly Sunny

    • 39
    • 66

    Mostly Sunny

    • 45
    • 69

    Partly Sunny

Today 20 Oct Mercer

Mostly sunny. Near steady temperature in the upper 60s. North Winds around 5 Mph.

Tonight 20 Oct Mercer

Clear. Patchy fog and frost after midnight. Lows in the mid 30s. Northeast 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

    56.6 °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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