Greenville Weather Forecast

    • 48
    • 66

    Decreasing Clouds

    • 49
    • 68

    Rain

    • 52
    • 61

    Rain

    • 58
    • 77

    Rain Showers Likely

    • 58
    • 79

    Slight Chance Thunderstorms

    • 59
    • 82

    Slight Chance Rain Showers

Today 21 May Mercer

Mostly cloudy. Highs in the mid 60s. Northeast Winds 5 to 10 Mph.

Tonight 21 May Mercer

Partly cloudy. Lows in the upper 40s. East Winds 5 to 10 Mph.

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Greenville Temperature Statistics

May Temperature

Port Meadville Airport (17.4 miles)

  • Lowest 2 May, 2026

    33.1 °F

  • Average May

    53.4 °F

  • Highest 18 May, 2026

    86 °F

Climate (2021–Present)

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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