Greenville Weather Forecast

    • 30
    • 44

    Slight Chance Rain

    • 30
    • 39

    Slight Chance Rain/Snow

    • 28
    • 42

    Wintry Mix

    • 33
    • 42

    Rain

    • 34
    • 49

    Rain Likely

    • 15
    • 44

    Rain/Snow Likely

Today 23 Dec Mercer

Considerable cloudiness. Rain Likely, mainly this morning. Highs in the mid 40s. Southwest Winds around 10 Mph, becoming west this afternoon. Chance of rain 70 percent.

Tonight 23 Dec Mercer

Considerable cloudiness. Lows in the upper 20s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Greenville Temperature Statistics

December Temperature

Port Meadville Airport (17.4 miles)

  • Lowest 5 December, 2025

    8.1 °F

  • Average December

    24.5 °F

  • Highest 18 December, 2025

    52 °F

Climate (2020–Present)

Port Meadville Airport (17.4 miles)

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  • Average Low 2020–2025

    42.8 °F

  • Average 2020–2025

    50.9 °F

  • Average High 2020–2025

    59.2 °F
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