Lake of the Isles Weather Forecast

    • 63
    • 77

    Mostly Cloudy

    • 61
    • 79

    Rain Showers

    • 53
    • 71

    Chance Rain Showers

    • 57
    • 74

    Mostly Sunny

    • 59
    • 77

    Mostly Sunny

    • 63
    • 81

    Partly Sunny

    • 64
    • 81

    Rain Showers Likely

Today 20 Jul Jefferson

Mostly sunny. Highs Ranging from the mid 70s on the tug hill to the upper 70s across the lower Elevations. Southwest Winds 10 to 15 Mph.

Tonight 20 Jul Jefferson

Partly cloudy Early, then becoming mostly cloudy. Lows Ranging from the lower 60s across the tug hill to the mid 60s along the lake Ontario shore. Southwest Winds 10 Mph or Less, becoming south 10 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake of the Isles Temperature Statistics

July Temperature

Fort Drum / Wheeler-Sack U. S. Army Airfield (23 miles)

  • Lowest 17 July, 2026

    50.9 °F

  • Average July

    73.9 °F

  • Highest 1 July, 2026

    90 °F

Climate (2021–2026)

Fort Drum / Wheeler-Sack U. S. Army Airfield (23 miles)

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

  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    47.8 °F

  • Average High 2021–2026

    55.9 °F
Get WillyWeather+ to remove ads