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

Broomfield / Jeffco (KBJC)

Lat: 39.9°NLon: 105.1°WElev: 5551ft.

Fair

72°F

22°C

Humidity 33%
Wind Speed W 5 mph
Barometer 30.22 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 24 Aug 6:54 am MDT
Extended Forecast for

Thornton CO

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 92. Light and variable wind becoming north northwest 5 to 9 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 63. Northwest wind 5 to 9 mph becoming light and variable after midnight. Winds could gust as high as 15 mph.

    Low: 63 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 88. Calm wind becoming north northwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 88 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 60. North wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 17 mph. Chance of precipitation is 40%.

    Low: 60 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87. Calm wind becoming northeast 5 to 7 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 60. Chance of precipitation is 40%.

    Low: 60 °F

    Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 61.

    Low: 61 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 92. Light and variable wind becoming north northwest 5 to 9 mph in the afternoon. Winds could gust as high as 15 mph.
Tonight
A 30 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 63. Northwest wind 5 to 9 mph becoming light and variable after midnight. Winds could gust as high as 15 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 88. Calm wind becoming north northwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Tuesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 60. North wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 17 mph. Chance of precipitation is 40%.
Wednesday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87. Calm wind becoming northeast 5 to 7 mph in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 60. Chance of precipitation is 40%.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 90.
Thursday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 61.
Friday
Sunny, with a high near 94.
Friday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 63.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Thornton CO
 39.89°N 104.95°W (Elev. 5197 ft)
Last Update:
12:46 am MDT Aug 24, 2026
Forecast Valid:
7am MDT Aug 24, 2026-6pm MDT Aug 30, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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