Island Lake Weather Forecast

    • 63
    • 83

    Thunderstorms

    • 59
    • 77

    Severe Tstms

    • 60
    • 79

    Slight Chance Thunderstorms

    • 65
    • 83

    Chance Thunderstorms

    • 65
    • 89

    Slight Chance Thunderstorms

    • 65
    • 88

    Chance Thunderstorms

Today 22 Jul Barnes

Partly sunny with scattered Showers and Thunderstorms. Highs in the mid 80s. South Winds around 5 Mph and gusty. Chance of rain 50 percent.

Tonight 22 Jul Barnes

Numerous Thunderstorms and scattered Showers in the Evening, then numerous Showers and scattered Thunderstorms after midnight. Some Thunderstorms may be severe after midnight. Lows in the mid 60s. Northeast Winds 5 to 15 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Island Lake Temperature Statistics

July Temperature

Jamestown, Jamestown Municipal Airport (13.7 miles)

  • Lowest 17 July, 2025

    43.6 °F

  • Average July

    69.1 °F

  • Highest 4 July, 2025

    91.7 °F

Climate (2020–Present)

Jamestown, Jamestown Municipal Airport (13.7 miles)

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  • Average Low 2020–2025

    33 °F

  • Average 2020–2025

    43.7 °F

  • Average High 2020–2025

    54.5 °F
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