Greenville Weather Forecast

    • 57
    • 86

    Rain Showers Likely

    • 43
    • 65

    Chance Rain Showers

    • 49
    • 69

    Partly Sunny

    • 52
    • 67

    Rain Showers

    • 57
    • 69

    Rain Showers Likely

    • 58
    • 76

    Chance Rain Showers

Today 19 May Mercer

Partly cloudy with a chance of Showers with a slight chance of Thunderstorms. Unseasonably warm with Highs in the mid 80s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 30 percent.

Tonight 19 May Mercer

Showers likely with a chance of Thunderstorms. Lows in the upper 50s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Greenville Temperature Statistics

May Temperature

Port Meadville Airport (17.4 miles)

  • Lowest 2 May, 2026

    33.1 °F

  • Average May

    50.9 °F

  • Highest 17 May, 2026

    82 °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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