Sweetwater Lake Weather Forecast

    • 10
    • 27

    Mostly Cloudy

    • 10
    • 17

    Mostly Cloudy

    • 14
    • 26

    Mostly Cloudy

    • 9
    • 25

    Chance Wintry Mix

    • 11
    • 21

    Chance Snow

    • -2
    • 23

    Partly Sunny

Today 22 Dec Barnes

Mostly cloudy. A chance of Flurries and a slight chance of light freezing rain in the afternoon. Highs in the mid 20s. East Winds 5 to 15 Mph. Chance of precipitation 20 percent.

Tonight 22 Dec Barnes

Mostly cloudy. Patchy fog. Lows 10 to 15. Northeast Winds around 5 Mph.

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Sweetwater Lake Temperature Statistics

December Temperature

Valley City (9.3 miles)

  • Lowest 7 December, 2025

    -14.8 °F

  • Average December

    10.9 °F

  • Highest 16 December, 2025

    46.4 °F

Climate (2020–Present)

Valley City (9.3 miles)

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  • Average Low 2020–2025

    32.1 °F

  • Average 2020–2025

    42.1 °F

  • Average High 2020–2025

    51.9 °F
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