Thermalito Weather Forecast

    • 43
    • 60

    Increasing Clouds

    • 43
    • 60

    Mostly Cloudy

    • 45
    • 61

    Mostly Cloudy

    • 42
    • 60

    Mostly Cloudy

    • 42
    • 61

    Mostly Sunny

    • 43
    • 62

    Mostly Sunny

    • 44
    • 64

    Mostly Sunny

Today 29 Jan Central Sacramento Valley

Mostly cloudy in the morning then clearing. Patchy dense fog in the morning. Highs 58 to 64. Light Winds.

Tonight 29 Jan Central Sacramento Valley

Partly cloudy in the evening then becoming mostly cloudy. Lows around 42. Light Winds.

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Thermalito Temperature Statistics

January Temperature

Oroville Municipal Airport (1.9 miles)

  • Lowest 26 January, 2026

    32 °F

  • Average January

    49.2 °F

  • Highest 16 January, 2026

    64.7 °F

Climate (2021–Present)

Oroville Municipal Airport (1.9 miles)

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  • Average Low 2021–2026

    53.1 °F

  • Average 2021–2026

    64.8 °F

  • Average High 2021–2026

    76.7 °F
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