Twitchell Reservoir Weather Forecast

    • 48
    • 64

    Slight Chance Rain

    • 48
    • 63

    Rain

    • 43
    • 60

    Chance Rain

    • 43
    • 63

    Mostly Sunny

    • 44
    • 69

    Mostly Sunny

    • 47
    • 72

    Mostly Sunny

    • 45
    • 70

    Mostly Sunny

Today 10 Apr Santa Barbara County Interior Mountains

Mostly cloudy. A slight chance of rain in the Morning, then a chance of rain with a slight chance of Thunderstorms in the afternoon. Highs from the upper 50s to mid 60s at low Elevations to the upper 40s to mid 50s at high Elevations. Southwest Winds 15 to 25 Mph increasing to 20 to 30 Mph with Gusts to 40 Mph in the afternoon.

Tonight 10 Apr Santa Barbara County Interior Mountains

Mostly cloudy. A chance of rain in the evening. Lows in the 40s to around 50 except the mid to upper 30s Colder Valleys and Slopes. Southwest Winds 15 to 25 Mph with Gusts to 35 Mph in the evening.

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Twitchell Reservoir Temperature Statistics

April Temperature

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

  • Lowest 4 April, 2026

    43.6 °F

  • Average April

    61.8 °F

  • Highest 4 April, 2026

    87.7 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    48.2 °F

  • Average 2021–2026

    57.1 °F

  • Average High 2021–2026

    69.3 °F
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