South Cow Mountain OHV Recreation Area Weather Forecast

    • 50
    • 61

    Sunny

    • 53
    • 58

    Partly Sunny

    • 56
    • 59

    Chance Rain

    • 50
    • 60

    Rain

    • 47
    • 56

    Chance Rain

    • 49
    • 56

    Rain

    • 46
    • 55

    Rain

Today 13 Dec Southern Lake County

Sunny. Patchy valley fog in the morning. Highs 62 to 72.

Tonight 13 Dec Southern Lake County

Clear. Patchy dense valley fog overnight. Lows 37 to 47.

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South Cow Mountain OHV Recreation Area Temperature Statistics

December Temperature

Ukiah Municipal Airport (8.7 miles)

  • Lowest 4 December, 2025

    34 °F

  • Average December

    47.5 °F

  • Highest 10 December, 2025

    72 °F

Climate (2020–Present)

Ukiah Municipal Airport (8.7 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    60.7 °F

  • Average High 2020–2025

    76 °F
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