South Westminster Weather Forecast

    • 40
    • 65

    Mostly Cloudy

    • 41
    • 66

    Mostly Cloudy

    • 40
    • 68

    Mostly Sunny

    • 33
    • 62

    Partly Sunny

    • 25
    • 51

    Partly Sunny

    • 28
    • 45

    Partly Sunny

Today 23 Dec North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County

Partly cloudy. Highs 65 to 71.

Tonight 23 Dec North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County

Mostly cloudy. Lows near 40. Southwest Winds 10 to 15 Mph with Gusts up to 20 Mph after midnight.

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South Westminster Temperature Statistics

December Temperature

Broomfield / Jeffco (5.6 miles)

  • Lowest 1 December, 2025

    14 °F

  • Average December

    43.3 °F

  • Highest 19 December, 2025

    73.4 °F

Climate (2020–Present)

Broomfield / Jeffco (5.6 miles)

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  • Average Low 2020–2025

    41.5 °F

  • Average 2020–2025

    50.8 °F

  • Average High 2020–2025

    65 °F
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