Island Lake Weather Forecast

    • 24
    • 41

    Increasing Clouds

    • 34
    • 44

    Partly Sunny

    • 46
    • 58

    Mostly Cloudy

    • 61
    • 68

    Rain Showers Likely

    • 40
    • 74

    Rain Showers Likely

    • 31
    • 50

    Rain Showers Likely

    • 38
    • 45

    Chance Rain Showers

Today 27 Mar Branch

Partly cloudy and much cooler. Near steady temperature in the mid 30s. Northwest Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 27 Mar Branch

Mostly clear this Evening, then becoming partly cloudy. Lows in the mid 20s. Northwest Winds around 10 Mph with Gusts up to 20 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Island Lake Temperature Statistics

March Temperature

Branch County Memorial Airport (3.7 miles)

  • Lowest 1 March, 2026

    17.6 °F

  • Average March

    42.4 °F

  • Highest 9 March, 2026

    71.6 °F

Climate (2021–Present)

Branch County Memorial Airport (3.7 miles)

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

  • Average Low 2021–2026

    41.3 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    59.6 °F
Get WillyWeather+ to remove ads