Heavy to Excessive Rains in The Four Corners Region and Midwest; Heat Persists in the South-Central U.S.

Repeated rounds of showers and thunderstorms could bring a flash flooding threat across the Four Corners region and from the mid-Mississippi Valley into the lower Great Lakes. Hot temperatures and high humidity will continue to challenge daily records from the Southern Plains to the lower Mississippi Valley. Read More >

Current conditions at

Broomfield / Jeffco (KBJC)

Lat: 39.9°NLon: 105.1°WElev: 5551ft.

Fair

57°F

14°C

Humidity 63%
Wind Speed Vrbl 3 mph
Barometer 30.24 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 16 Sep 7:45 am MDT
Extended Forecast for

Thornton CO

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 4pm.  Partly sunny, with a high near 84. Calm wind becoming east northeast 5 to 7 mph in the afternoon.

    High: 84 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 61. North wind 5 to 7 mph becoming calm  after midnight.  Chance of precipitation is 40%.

    Low: 61 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers before noon, then a chance of showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm.  Partly sunny, with a high near 79. Light and variable wind becoming northwest 5 to 8 mph in the afternoon.  Chance of precipitation is 60%.

    High: 79 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday 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 59. Northwest wind 5 to 7 mph becoming calm  in the evening.  Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 82. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 82 °F

    Partly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight.  Partly cloudy, with a low around 55. Chance of precipitation is 40%.

    Low: 55 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm after noon.  Partly sunny, with a high near 78. Chance of precipitation is 60%.

    High: 78 °F

    Mostly Sunny
    then Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers.  Mostly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 75.

    High: 75 °F

    Chance
    Showers

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 84. Calm wind becoming east northeast 5 to 7 mph in the afternoon.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. North wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 40%.
Thursday
A slight chance of showers before noon, then a chance of showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 79. Light and variable wind becoming northwest 5 to 8 mph in the afternoon. Chance of precipitation is 60%.
Thursday 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 59. Northwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 20%.
Friday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 82. Calm wind becoming southwest around 6 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 55. Chance of precipitation is 40%.
Saturday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 78. Chance of precipitation is 60%.
Saturday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 53.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 75.
Sunday Night
A chance of showers, mainly before midnight. Partly cloudy, with a low around 52.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 75.
Monday Night
A slight chance of showers. Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Thornton CO
 39.89°N 104.95°W (Elev. 5197 ft)
12:46 am MDT Sep 16, 2026
8am MDT Sep 16, 2026-6pm MDT Sep 22, 2026
 
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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