Twitchell Reservoir Weather Forecast

    • 46
    • 77

    Sunny

    • 46
    • 80

    Sunny

    • 47
    • 78

    Sunny

    • 47
    • 74

    Sunny

    • 47
    • 72

    Mostly Sunny

    • 44
    • 67

    Mostly Sunny

Today 9 Dec Santa Barbara County Interior Mountains

Sunny. Highs from the mid 70s to lower 80s at low Elevations to the mid 60s to around 70 at high Elevations. Northeast Winds 15 to 25 Mph.

Tonight 9 Dec Santa Barbara County Interior Mountains

Clear. Lows in the mid 40s to lower 50s. Northeast Winds around 15 Mph.

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Twitchell Reservoir Temperature Statistics

December Temperature

Santa Maria Public Airport/Capt G Allan Hancock Field (9.3 miles)

  • Lowest 4 December, 2025

    37.9 °F

  • Average December

    52.7 °F

  • Highest 7 December, 2025

    73 °F

Climate (2020–Present)

Santa Maria Public Airport/Capt G Allan Hancock Field (9.3 miles)

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  • Average Low 2020–2025

    48 °F

  • Average 2020–2025

    56.7 °F

  • Average High 2020–2025

    68.7 °F
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