Three Island Lake Weather Forecast

    • 48
    • 65

    Partly Sunny

    • 47
    • 60

    Mostly Cloudy

    • 45
    • 56

    Chance Rain Showers

    • 45
    • 56

    Chance Rain Showers

    • 46
    • 60

    Chance Rain Showers

    • 46
    • 60

    Chance Thunderstorms

Today 11 Jul Upper San Joaquin River

Sunny. Highs 69 to 83. Southwest Winds up to 5 Mph increasing to 5 to 15 Mph in the afternoon. Gusts up to 30 Mph.

Tonight 11 Jul Upper San Joaquin River

Mostly cloudy. Lows 52 to 62. Southwest Winds 5 to 10 Mph with Gusts to around 30 Mph shifting to the southeast with Gusts to around 20 Mph after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Three Island Lake Temperature Statistics

July Temperature

Mammoth Yosemite Airport (23 miles)

  • Lowest 4 July, 2026

    39.2 °F

  • Average July

    64.5 °F

  • Highest 8 July, 2026

    86 °F

Climate (2021–2026)

Mammoth Yosemite Airport (23 miles)

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

  • Average Low 2021–2026

    29.5 °F

  • Average 2021–2026

    45.7 °F

  • Average High 2021–2026

    60.6 °F
Get WillyWeather+ to remove ads