Twain Weather Forecast

    • 48
    • 86

    Sunny

    • 47
    • 80

    Sunny

    • 47
    • 80

    Sunny

    • 50
    • 89

    Sunny

    • 52
    • 92

    Mostly Sunny

    • 52
    • 91

    Mostly Sunny

Today 15 Sep Sierra Nevada of Tehama-Butte-Plumas Counties Between 1000-3000 ft

Sunny. Highs 79 to 87. East Winds up to 10 Mph shifting to the southwest in the afternoon. Gusts up to 20 Mph.

Tonight 15 Sep Sierra Nevada of Tehama-Butte-Plumas Counties Between 1000-3000 ft

Clear. Lows 55 to 63. Southeast Winds up to 10 Mph with Gusts to around 20 Mph.

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Twain Temperature Statistics

September Temperature

Nevada County Air Park (54.7 miles)

  • Lowest 1 September, 2026

    48.2 °F

  • Average September

    66.9 °F

  • Highest 9 September, 2026

    91.4 °F

Climate (2021–2026)

Nevada County Air Park (54.7 miles)

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  • Average Low 2021–2026

    52.1 °F

  • Average 2021–2026

    60.1 °F

  • Average High 2021–2026

    68.4 °F
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