Mill Creek Weather Forecast

    • 48
    • 82

    Mostly Cloudy

    • 45
    • 68

    Chance Rain Showers

    • 44
    • 71

    Mostly Sunny

    • 46
    • 75

    Sunny

    • 50
    • 82

    Mostly Sunny

    • 45
    • 78

    Chance Rain Showers

Today 18 Sep Western Plumas County/Lassen Park

Mostly cloudy. Highs 69 to 84 higher Elevations. 75 to 90 lower Elevations. Light Winds becoming southwest up to 10 Mph in the afternoon.

Tonight 18 Sep Western Plumas County/Lassen Park

Mostly cloudy. A slight chance of rain Showers after midnight. Cooler. Lows 48 to 63. Prevailing southwest Winds up to 10 Mph in the evening becoming light.

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Mill Creek Temperature Statistics

September Temperature

Red Bluff, Red Bluff Municipal Airport (39.8 miles)

  • Lowest 7 September, 2025

    57.9 °F

  • Average September

    75.7 °F

  • Highest 1 September, 2025

    102 °F

Climate (2020–Present)

Red Bluff, Red Bluff Municipal Airport (39.8 miles)

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  • Average Low 2020–2025

    52.7 °F

  • Average 2020–2025

    65.1 °F

  • Average High 2020–2025

    78.1 °F
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