Grinnell Lake Weather Forecast

    • 38
    • 62

    Mostly Sunny

    • 32
    • 54

    Breezy

    • 32
    • 53

    Mostly Sunny

    • 32
    • 51

    Breezy

    • 30
    • 49

    Slight Chance Thunderstorms

    • 29
    • 51

    Breezy

Today 5 Jun Upper San Joaquin River

Sunny. Highs 60 to 78. South Winds up to 5 Mph increasing to southwest 10 to 15 Mph in the afternoon. Gusts up to 30 Mph.

Tonight 5 Jun Upper San Joaquin River

Mostly clear. Lows 39 to 51. South Winds up to 10 Mph with Gusts to around 30 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Grinnell Lake Temperature Statistics

June Temperature

Mammoth Yosemite Airport (10.6 miles)

  • Lowest 1 June, 2026

    35.6 °F

  • Average June

    61.1 °F

  • Highest 3 June, 2026

    78.8 °F

Climate (2021–Present)

Mammoth Yosemite Airport (10.6 miles)

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

  • Average Low 2021–2026

    29.6 °F

  • Average 2021–2026

    45.8 °F

  • Average High 2021–2026

    60.7 °F
Get WillyWeather+ to remove ads