Mill Creek Weather Forecast

    • 37
    • 62

    Mostly Sunny

    • 40
    • 58

    Chance Rain Showers

    • 40
    • 54

    Rain Showers

    • 35
    • 48

    Rain Showers Likely

    • 36
    • 49

    Rain Showers

    • 35
    • 46

    Rain Showers

    • 33
    • 46

    Rain Showers Likely

Today 14 Dec Western Plumas County/Lassen Park

Sunny. Highs 52 to 67. Light Winds.

Tonight 14 Dec Western Plumas County/Lassen Park

Mostly clear. Lows 33 to 48. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mill Creek Temperature Statistics

December Temperature

Red Bluff, Red Bluff Municipal Airport (39.8 miles)

  • Lowest 1 December, 2025

    35.1 °F

  • Average December

    43.3 °F

  • Highest 3 December, 2025

    62.1 °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

    64.9 °F

  • Average High 2020–2025

    77.7 °F
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