Greenville Weather Forecast

    • 54
    • 81

    Increasing Clouds

    • 56
    • 79

    Chance Rain Showers

    • 57
    • 84

    Mostly Sunny

    • 57
    • 87

    Mostly Sunny

    • 57
    • 88

    Mostly Sunny

    • 57
    • 87

    Partly Sunny

Today 12 Sep Montcalm

Sunny. Highs in the lower 80s. Southwest Winds around 5 Mph.

Tonight 12 Sep Montcalm

Partly cloudy. Lows in the mid 50s. Light Winds.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Greenville Temperature Statistics

September Temperature

Ionia County Airport (18.6 miles)

  • Lowest 8 September, 2025

    35.6 °F

  • Average September

    58 °F

  • Highest 2 September, 2025

    78.8 °F

Climate (2020–Present)

Ionia County Airport (18.6 miles)

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

  • Average Low 2020–2025

    40.9 °F

  • Average 2020–2025

    49.9 °F

  • Average High 2020–2025

    58.9 °F
Get WillyWeather+ to remove ads