Nicolaus Weather Forecast

    • 50
    • 57

    Rain Showers Likely

    • 52
    • 56

    Rain Showers

    • 53
    • 55

    Rain Showers

    • 53
    • 57

    Rain Showers

    • 49
    • 56

    Rain Showers Likely

    • 49
    • 51

    Rain Showers

Today 18 Dec Southern Sacramento Valley

Mostly cloudy. Widespread fog. Locally dense in the Morning, then patchy fog in the afternoon. Highs 54 to 60. South Winds up to 10 Mph.

Tonight 18 Dec Southern Sacramento Valley

Mostly cloudy. Patchy fog through the night. A slight chance of rain Showers after midnight. Lows around 49. South Winds up to 10 Mph.

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Nicolaus Temperature Statistics

December Temperature

Lincoln Regional Karl Harder Field (11.8 miles)

  • Lowest 2 December, 2025

    32 °F

  • Average December

    42.5 °F

  • Highest 3 December, 2025

    62.6 °F

Climate (2020–Present)

Lincoln Regional Karl Harder Field (11.8 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    61.6 °F

  • Average High 2020–2025

    74.8 °F
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