Twin Island Lakes Weather Forecast

    • 45
    • 56

    Chance Thunderstorms

    • 46
    • 61

    Mostly Sunny

    • 46
    • 62

    Mostly Sunny

    • 46
    • 61

    Partly Sunny

    • 49
    • 62

    Slight Chance Thunderstorms

    • 50
    • 63

    Slight Chance Thunderstorms

Today 14 Jul Upper San Joaquin River

Mostly sunny early in the Morning, then a 50 percent chance of Thunderstorms in the late morning and afternoon. Highs 58 to 74. Southwest Winds up to 10 Mph.

Tonight 14 Jul Upper San Joaquin River

Mostly clear. A 20 percent chance of Thunderstorms in the evening. Lows 47 to 57. Northwest Winds up to 10 Mph shifting to the northeast after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Twin Island Lakes Temperature Statistics

July Temperature

Mammoth Yosemite Airport (21.7 miles)

  • Lowest 4 July, 2026

    39.2 °F

  • Average July

    66.5 °F

  • Highest 10 July, 2026

    87.8 °F

Climate (2021–2026)

Mammoth Yosemite Airport (21.7 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