National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Broomfield / Jeffco (KBJC)

Lat: 39.9°NLon: 105.1°WElev: 5551ft.

Fair

82°F

28°C

Humidity 37%
Wind Speed NE 5 mph
Barometer 30.29 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 27 Aug 11:47 am MDT
Extended Forecast for

Thornton CO

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 90. East northeast wind 6 to 8 mph.

    High: 90 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 64. East wind 5 to 7 mph becoming southwest after midnight.

    Low: 64 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 95. Light and variable wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 95 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 65. Southwest wind 5 to 7 mph, with gusts as high as 16 mph.

    Low: 65 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 95. South southwest wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 95 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 65. Chance of precipitation is 20%.

    Low: 65 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 91.

    High: 91 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 87.

    High: 87 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 90. East northeast wind 6 to 8 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 64. East wind 5 to 7 mph becoming southwest after midnight.
Friday
Mostly sunny, with a high near 95. Light and variable wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.
Friday Night
Partly cloudy, with a low around 65. Southwest wind 5 to 7 mph, with gusts as high as 16 mph.
Saturday
A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 95. South southwest wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Saturday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 65. Chance of precipitation is 20%.
Sunday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 91.
Sunday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 62.
Monday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 87.
Monday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 60.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
Sunny, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Thornton CO
 39.89°N 104.95°W (Elev. 5197 ft)
Last Update:
7:53 am MDT Aug 27, 2026
Forecast Valid:
12pm MDT Aug 27, 2026-6pm MDT Sep 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation