Grand Mere State Park Weather Forecast

    • 65
    • 83

    Increasing Clouds

    • 64
    • 85

    Rain Showers Likely

    • 62
    • 78

    Rain Showers Likely

    • 60
    • 73

    Mostly Sunny

    • 64
    • 77

    Mostly Sunny

    • 66
    • 80

    Slight Chance Thunderstorms

Today 30 Jul Southern Berrien

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

Tonight 30 Jul Southern Berrien

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 60s. Southwest Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Grand Mere State Park Temperature Statistics

July Temperature

Southwest Michigan Regional Airport (10.6 miles)

  • Lowest 23 July, 2026

    47.6 °F

  • Average July

    73.7 °F

  • Highest 1 July, 2026

    92.6 °F

Climate (2021–2026)

Southwest Michigan Regional Airport (10.6 miles)

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

  • Average Low 2021–2026

    43.2 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    60.8 °F
Get WillyWeather+ to remove ads