Clear Lake Reservoir Weather Forecast

    • 41
    • 75

    Partly Sunny

    • 30
    • 63

    Partly Sunny

    • 35
    • 64

    Partly Sunny

    • 37
    • 66

    Partly Sunny

    • 41
    • 69

    Partly Sunny

    • 30
    • 58

    Partly Sunny

    • 33
    • 55

    Mostly Sunny

Today 20 Mar Northeast Siskiyou and Northwest Modoc Counties

Sunny early this afternoon then becoming partly cloudy. Highs in the mid 70s to lower 80s. Northwest Winds 5 to 10 Mph.

Tonight 20 Mar Northeast Siskiyou and Northwest Modoc Counties

Partly cloudy. Lows in the lower to mid 40s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Clear Lake Reservoir Temperature Statistics

March Temperature

Klamath Falls International Airport (35.4 miles)

  • Lowest 11 March, 2026

    19.7 °F

  • Average March

    43.2 °F

  • Highest 18 March, 2026

    75.9 °F

Climate (2021–Present)

Klamath Falls International Airport (35.4 miles)

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  • Average Low 2021–2026

    34 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    63.4 °F
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