Alturas Weather Forecast

    • 46
    • 84

    Increasing Clouds

    • 34
    • 70

    Partly Sunny

    • 40
    • 73

    Mostly Cloudy

    • 34
    • 70

    Partly Sunny

    • 34
    • 68

    Mostly Sunny

    • 37
    • 73

    Mostly Sunny

Today 24 Sep Modoc County

Partly cloudy then becoming sunny in the late morning and early afternoon then becoming partly cloudy. Highs in the mid 70s to lower 80s. South Winds 5 to 10 Mph shifting to the southwest 10 to 20 Mph this afternoon.

Tonight 24 Sep Modoc County

Mostly cloudy. Lows in the mid 40s to lower 50s. Southwest Winds 10 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alturas Temperature Statistics

September Temperature

Alturas (0.6 miles)

  • Lowest 14 September, 2026

    28.7 °F

  • Average September

    59 °F

  • Highest 10 September, 2026

    85.6 °F

Climate (2021–2026)

Alturas (0.6 miles)

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  • Average Low 2021–2026

    33.2 °F

  • Average 2021–2026

    49.1 °F

  • Average High 2021–2026

    64.7 °F
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