Thornton Weather Forecast

    • 37
    • 65

    Mostly Cloudy

    • 39
    • 52

    Rain Likely

    • 34
    • 48

    Chance Rain

    • 32
    • 57

    Mostly Sunny

    • 33
    • 57

    Mostly Sunny

    • 32
    • 57

    Mostly Sunny

    • 25
    • 49

    Partly Sunny

Today 19 Nov North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County

Partly cloudy. Highs in the mid 60s.

Tonight 19 Nov North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the 30s.

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Thornton Temperature Statistics

November Temperature

Broomfield / Jeffco (6.8 miles)

  • Lowest 1 November, 2025

    30.2 °F

  • Average November

    53 °F

  • Highest 2 November, 2025

    80.6 °F

Climate (2020–Present)

Broomfield / Jeffco (6.8 miles)

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  • Average Low 2020–2025

    41.4 °F

  • Average 2020–2025

    50.7 °F

  • Average High 2020–2025

    64.9 °F
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