Clearlake Weather Forecast

    • 39
    • 64

    Mostly Sunny

    • 39
    • 66

    Mostly Sunny

    • 40
    • 67

    Partly Sunny

    • 40
    • 64

    Partly Sunny

    • 39
    • 61

    Slight Chance Rain Showers

    • 37
    • 59

    Mostly Cloudy

Today 24 Nov Southern Lake County

Mostly sunny. Patchy valley fog in the morning. Highs 57 to 67.

Tonight 24 Nov Southern Lake County

Mostly clear. Lows 37 to 47.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Clearlake Temperature Statistics

November Temperature

Ukiah Municipal Airport (32.9 miles)

  • Lowest 21 November, 2025

    37 °F

  • Average November

    55 °F

  • Highest 2 November, 2025

    79 °F

Climate (2020–Present)

Ukiah Municipal Airport (32.9 miles)

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

  • Average Low 2020–2025

    46.9 °F

  • Average 2020–2025

    60.7 °F

  • Average High 2020–2025

    76 °F
Get WillyWeather+ to remove ads