Copco Lake Weather Forecast

    • 31
    • 52

    Rain

    • 30
    • 50

    Mostly Cloudy

    • 32
    • 49

    Slight Chance Rain/Snow

    • 30
    • 49

    Mostly Sunny

    • 30
    • 51

    Mostly Cloudy

    • 29
    • 49

    Chance Rain/Snow

Today 8 Feb North Central and Southeast Siskiyou County

Mostly cloudy. Patchy fog early this morning. Chance of rain this morning. Slight chance of snow in the late morning and afternoon. Rain this afternoon. Snow level 6000 feet this afternoon. Little or no snow accumulation. Highs in the mid 40s to lower 50s. Southwest Winds 10 to 20 Mph. Chance of precipitation 80 percent.

Tonight 8 Feb North Central and Southeast Siskiyou County

Mostly cloudy with a chance of rain and snow in the Evening, then partly cloudy after midnight. Patchy fog through the night. Snow level 5000 feet in the evening. Lows in the mid 20s to lower 30s. West Winds 10 to 15 Mph shifting to the northwest around 5 Mph well after midnight. Chance of precipitation 30 percent.

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Copco Lake Temperature Statistics

February Temperature

Montague Siskiyou County Airport (16.2 miles)

  • Lowest 2 February, 2026

    18.6 °F

  • Average February

    39.5 °F

  • Highest 5 February, 2026

    64.9 °F

Climate (2021–Present)

Montague Siskiyou County Airport (16.2 miles)

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  • Average Low 2021–2026

    39.6 °F

  • Average 2021–2026

    54.2 °F

  • Average High 2021–2026

    69.1 °F
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