Mill Creek Weather Forecast

    • 45
    • 80

    Mostly Cloudy

    • 42
    • 80

    Partly Sunny

    • 40
    • 79

    Mostly Sunny

    • 41
    • 79

    Partly Sunny

    • 39
    • 78

    Partly Sunny

    • 36
    • 69

    Partly Sunny

    • 36
    • 69

    Partly Sunny

Today 20 Sep Sierra Nevada of Tehama-Butte-Plumas Counties Above 3000 ft

Mostly cloudy. Highs 72 to 82. Northeast Winds up to 10 Mph in the morning becoming light. Gusts up to 20 Mph.

Tonight 20 Sep Sierra Nevada of Tehama-Butte-Plumas Counties Above 3000 ft

Mostly cloudy. Lows 49 to 59. Light Winds.

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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 °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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