Three Island Lake Weather Forecast

    • 41
    • 60

    Areas Smoke

    • 43
    • 63

    Areas Smoke

    • 48
    • 69

    Mostly Sunny

    • 53
    • 73

    Sunny

    • 54
    • 75

    Mostly Sunny

    • 54
    • 73

    Mostly Sunny

    • 52
    • 70

    Mostly Sunny

Today 3 Aug Boise Mountains

Sunny. Patchy smoke. Highs 70 to 85.

Tonight 3 Aug Boise Mountains

Mostly clear. Smoke. Lows 36 to 51.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Three Island Lake Temperature Statistics

August Temperature

Stanley, Stanley Ranger Station (18.6 miles)

  • Lowest 1 August, 2026

    39.9 °F

  • Average August

    67.9 °F

  • Highest 1 August, 2026

    88 °F

Climate (2021–2026)

Stanley, Stanley Ranger Station (18.6 miles)

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

  • Average Low 2021–2026

    23.1 °F

  • Average 2021–2026

    38.4 °F

  • Average High 2021–2026

    53.9 °F
Get WillyWeather+ to remove ads