California Weather Forecast

    • 35
    • 44

    Mostly Sunny

    • 24
    • 51

    Mostly Sunny

    • 30
    • 41

    Chance Rain

    • 37
    • 51

    Mostly Cloudy

    • 35
    • 48

    Mostly Cloudy

    • 46
    • 56

    Mostly Cloudy

Today 20 Dec St. Marys

Sunny. Highs in the mid 40s. Northeast Winds around 5 Mph, becoming south this afternoon.

Tonight 20 Dec St. Marys

Mostly clear. Lows in the mid 30s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

California Temperature Statistics

December Temperature

St Marys County Airport (2.5 miles)

  • Lowest 15 December, 2025

    14.9 °F

  • Average December

    34.8 °F

  • Highest 18 December, 2025

    57.2 °F

Climate (2020–Present)

St Marys County Airport (2.5 miles)

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  • Average Low 2020–2025

    49.5 °F

  • Average 2020–2025

    58 °F

  • Average High 2020–2025

    66.7 °F
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