Concord Weather Forecast

    • 8
    • 44

    Rain

    • 17
    • 23

    Mostly Cloudy

    • 7
    • 37

    Mostly Cloudy

    • 9
    • 18

    Partly Sunny

    • 28
    • 35

    Mostly Cloudy

    • 24
    • 39

    Mostly Cloudy

Today 18 Dec Jefferson

Rain until late Afternoon, then chance of snow Showers, possibly mixed with rain Showers late in the afternoon. Little snow accumulation. Highs in the mid 40s. Southwest Winds 10 to 20 Mph. Chance of precipitation near 100 percent.

Tonight 18 Dec Jefferson

Much Colder. Breezy. Mostly cloudy. Snow Showers likely in the Evening, then slight chance of snow Showers in the late evening and early morning. Little snow accumulation. Lows around 7. West Winds 15 to 25 Mph with Gusts to around 40 Mph. Chance of snow 70 percent.

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Concord Temperature Statistics

December Temperature

Watertown (9.3 miles)

  • Lowest 14 December, 2025

    -7.2 °F

  • Average December

    15.4 °F

  • Highest 10 December, 2025

    33.8 °F

Climate (2020–Present)

Watertown (9.3 miles)

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  • Average Low 2020–2025

    35.7 °F

  • Average 2020–2025

    45.4 °F

  • Average High 2020–2025

    54.5 °F
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