Twitchell Reservoir Weather Forecast

    • 50
    • 70

    Rain Likely

    • 53
    • 67

    Rain

    • 52
    • 62

    Rain

    • 49
    • 61

    Rain Likely

    • 45
    • 59

    Rain Likely

    • 45
    • 60

    Chance Rain

    • 44
    • 60

    Chance Rain

Today 30 Dec Santa Barbara County Interior Mountains

Mostly cloudy. A slight chance of Showers in the morning. Highs from the upper 60s to mid 70s at low Elevations to the upper 50s to mid 60s at high Elevations. East Winds 15 to 25 Mph.

Tonight 30 Dec Santa Barbara County Interior Mountains

Cloudy. A slight chance of Showers in the Evening, then a slight chance of rain after midnight. Lows in the mid 40s to mid 50s except the lower to mid 40s Colder Valleys and Slopes.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Twitchell Reservoir Temperature Statistics

December Temperature

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

  • Lowest 28 December, 2025

    37 °F

  • Average December

    55.5 °F

  • Highest 9 December, 2025

    81 °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

    68.8 °F
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