Greenville Weather Forecast

    • 57
    • 80

    Becoming Sunny

    • 59
    • 81

    Rain Showers

    • 54
    • 73

    Rain Showers

    • 53
    • 72

    Partly Sunny

    • 56
    • 77

    Partly Sunny

    • 61
    • 80

    Slight Chance Rain Showers

Today 21 Aug Mercer

Mostly sunny. Highs in the upper 70s. East Winds around 5 Mph.

Tonight 21 Aug Mercer

Clear. Lows in the upper 50s. East Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Greenville Temperature Statistics

August Temperature

Port Meadville Airport (17.4 miles)

  • Lowest 4 August, 2026

    53.1 °F

  • Average August

    71 °F

  • Highest 6 August, 2026

    82.9 °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

    42.7 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    59.3 °F
Get WillyWeather+ to remove ads