Greenville Weather Forecast

    • 62
    • 70

    Increasing Clouds

    • 37
    • 69

    Rain Showers

    • 32
    • 50

    Mostly Sunny

    • 34
    • 61

    Mostly Sunny

    • 39
    • 65

    Partly Sunny

    • 40
    • 66

    Mostly Sunny

Today 15 Oct Mercer

Partly sunny. Highs around 70. East Winds around 5 Mph.

Tonight 15 Oct Mercer

Considerable cloudiness with isolated Thunderstorms. Scattered Showers in the Evening, then Showers after midnight. Mild. More humid with Lows in the lower 60s. Temperatures rising into the upper 60s after midnight. Southeast Winds 10 to 15 Mph, becoming south after midnight. Chance of rain 90 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Greenville Temperature Statistics

October Temperature

Port Meadville Airport (17.4 miles)

  • Lowest 6 October, 2026

    37 °F

  • Average October

    57.1 °F

  • Highest 1 October, 2026

    80.1 °F

Climate (2021–2026)

Port Meadville Airport (17.4 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.2 °F
Get WillyWeather+ to remove ads