Island Lake Weather Forecast

    • 55
    • 79

    Chance Rain Showers

    • 57
    • 80

    Slight Chance Rain Showers

    • 55
    • 72

    Chance Rain Showers

    • 55
    • 68

    Chance Rain Showers

    • 55
    • 68

    Chance Rain Showers

    • 54
    • 69

    Slight Chance Rain Showers

Today 15 Sep Barnes

Partly sunny with a 40 percent chance of Showers. Highs 75 to 80. Breezy. South Winds 15 to 25 Mph.

Tonight 15 Sep Barnes

Mostly clear. Lows in the mid 50s. Southwest Winds around 10 Mph shifting to the west after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Island Lake Temperature Statistics

September Temperature

Jamestown, Jamestown Municipal Airport (13.7 miles)

  • Lowest 4 September, 2025

    34 °F

  • Average September

    58.8 °F

  • Highest 11 September, 2025

    82.9 °F

Climate (2020–Present)

Jamestown, Jamestown Municipal Airport (13.7 miles)

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

  • Average Low 2020–2025

    33 °F

  • Average 2020–2025

    43.7 °F

  • Average High 2020–2025

    54.5 °F
Get WillyWeather+ to remove ads