Mill Creek Weather Forecast

    • 40
    • 77

    Sunny

    • 39
    • 76

    Sunny

    • 36
    • 71

    Mostly Sunny

    • 37
    • 69

    Sunny

    • 40
    • 77

    Sunny

    • 41
    • 80

    Mostly Sunny

Today 14 Sep Sierra Nevada of Tehama-Butte-Plumas Counties Above 3000 ft

Sunny, warmer. Highs 69 to 79. East Winds up to 15 Mph. Gusts up to 30 Mph in the morning.

Tonight 14 Sep Sierra Nevada of Tehama-Butte-Plumas Counties Above 3000 ft

Clear. Lows 44 to 54. Northeast Winds up to 10 Mph.

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Mill Creek Temperature Statistics

September Temperature

Red Bluff, Red Bluff Municipal Airport (39.8 miles)

  • Lowest 6 September, 2026

    52.6 °F

  • Average September

    72.5 °F

  • Highest 9 September, 2026

    103.6 °F

Climate (2021–2026)

Red Bluff, Red Bluff Municipal Airport (39.8 miles)

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  • Average Low 2021–2026

    52.7 °F

  • Average 2021–2026

    64.8 °F

  • Average High 2021–2026

    77.6 °F
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