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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Current conditions at

Broomfield / Jeffco (KBJC)

Lat: 39.9°NLon: 105.1°WElev: 5551ft.

Fair

64°F

18°C

Humidity 64%
Wind Speed Calm
Barometer 30.26 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 18 Sep 1:35 am MDT
Extended Forecast for

Westminster CO

  • Overnight

    Overnight: Mostly cloudy, with a low around 61. Light west southwest wind.

    Low: 61 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 83. Calm wind becoming west 5 to 8 mph in the afternoon. Chance of precipitation is 60%.

    High: 83 °F

    Partly Sunny
    then Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 55. West northwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely then
    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Increasing clouds, with a high near 78. Calm wind becoming northeast around 6 mph in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 60%.

    High: 78 °F

    Sunny then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 52. Northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%.

    Low: 52 °F

    Showers then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 73. Chance of precipitation is 40%.

    High: 73 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 50. Chance of precipitation is 40%.

    Low: 50 °F

    Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of showers before midnight. Partly cloudy, with a low around 52.

    Low: 52 °F

    Slight Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 61. Light west southwest wind.
Friday
A slight chance of showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Partly sunny, with a high near 83. Calm wind becoming west 5 to 8 mph in the afternoon. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 55. West northwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms between noon and 3pm, then showers likely and possibly a thunderstorm after 3pm. Increasing clouds, with a high near 78. Calm wind becoming northeast around 6 mph in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 60%.
Saturday Night
Showers and possibly a thunderstorm. Low around 52. Northeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%.
Sunday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 73. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 50. Chance of precipitation is 40%.
Monday
Sunny, with a high near 75.
Monday Night
A slight chance of showers before midnight. Partly cloudy, with a low around 52.
Tuesday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 53.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 54.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Westminster CO
 39.9°N 105.06°W (Elev. 5302 ft)
Last Update:
12:46 am MDT Sep 18, 2026
Forecast Valid:
1am MDT Sep 18, 2026-6pm MDT Sep 24, 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