Thornton Weather Forecast

    • 41
    • 65

    Becoming Sunny

    • 39
    • 67

    Mostly Sunny

    • 39
    • 64

    Partly Sunny

    • 39
    • 55

    Slight Chance Rain Showers

    • 36
    • 56

    Partly Sunny

    • 36
    • 58

    Partly Sunny

    • 39
    • 58

    Partly Sunny

Today 11 Nov North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County

Partly cloudy with a 20 percent chance of Showers. Lows in the upper 30s. Highs in the upper 50s.

Tonight 11 Nov North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County

Clear. Lows in the upper 30s.

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Thornton Temperature Statistics

November Temperature

Broomfield / Jeffco (6.8 miles)

  • Lowest 4 November, 2026

    35.6 °F

  • Average November

    47.1 °F

  • Highest 9 November, 2026

    69.8 °F

Climate (2021–2026)

Broomfield / Jeffco (6.8 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    51.8 °F

  • Average High 2021–2026

    66.1 °F
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