Twitchell Reservoir Weather Forecast

    • 54
    • 80

    Increasing Clouds

    • 56
    • 82

    Becoming Sunny

    • 54
    • 79

    Partly Sunny

    • 52
    • 76

    Partly Sunny

    • 51
    • 75

    Partly Sunny

    • 51
    • 72

    Mostly Cloudy

    • 50
    • 71

    Partly Sunny

Today 8 Aug Santa Barbara County Interior Mountains

Sunny. Highs from 95 to 102 at low Elevations to the mid 80s to lower 90s at high Elevations.

Tonight 8 Aug Santa Barbara County Interior Mountains

Mostly clear. Lows in the upper 60s to mid 70s except the upper 50s to mid 60s Colder Valleys and Slopes.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Twitchell Reservoir Temperature Statistics

August Temperature

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

  • Lowest 2 August, 2026

    54.6 °F

  • Average August

    65.3 °F

  • Highest 2 August, 2026

    77.6 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    48.3 °F

  • Average 2021–2026

    57.5 °F

  • Average High 2021–2026

    69.5 °F
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