Greenville Weather Forecast

    • 61
    • 91

    Chance Thunderstorms

    • 54
    • 77

    Partly Sunny

    • 63
    • 81

    Chance Rain Showers

    • 62
    • 83

    Rain Showers

    • 54
    • 73

    Chance Rain Showers

    • 54
    • 76

    Mostly Sunny

    • 59
    • 80

    Partly Sunny

Today 18 Jul Mercer

Showers and Thunderstorms likely. Highs in the upper 80s. Temperatures falling into the lower 80s late. West Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 70 percent. Heat index Values in the upper 90s.

Tonight 18 Jul Mercer

Showers and Thunderstorms this evening. Lows around 60. Northwest Winds 5 to 10 Mph. Chance of rain near 100 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Greenville Temperature Statistics

July Temperature

Port Meadville Airport (17.4 miles)

  • Lowest 12 July, 2026

    61 °F

  • Average July

    75.6 °F

  • Highest 1 July, 2026

    91 °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