Clear Lake Weather Forecast

    • 35
    • 58

    Sunny

    • 40
    • 65

    Mostly Sunny

    • 37
    • 64

    Partly Sunny

    • 40
    • 63

    Mostly Cloudy

    • 35
    • 61

    Rain Likely

    • 30
    • 47

    Rain

    • 29
    • 42

    Snow Likely

Today 20 Oct Modoc County

Sunny. Highs in the mid 50s to mid 60s. Northeast Winds 5 to 10 Mph.

Tonight 20 Oct Modoc County

Clear. Lows in the mid 20s to mid 30s. East Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Clear Lake Temperature Statistics

October Temperature

Alturas (20.5 miles)

  • Lowest 16 October, 2025

    24.1 °F

  • Average October

    49.4 °F

  • Highest 7 October, 2025

    73 °F

Climate (2020–Present)

Alturas (20.5 miles)

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

  • Average Low 2020–2025

    33 °F

  • Average 2020–2025

    49.1 °F

  • Average High 2020–2025

    64.3 °F
Get WillyWeather+ to remove ads