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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Broomfield / Jeffco (KBJC)

Lat: 39.9°NLon: 105.1°WElev: 5551ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Blue Valley CO

  • Tonight

    Tonight: Mostly clear, with a low around 40. Southwest wind around 6 mph.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers before noon. Sunny, with a high near 57. West northwest wind 7 to 10 mph, with gusts as high as 16 mph.

    High: 57 °F

    Slight Chance
    Showers then
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 37. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 37 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 58. Light and variable wind becoming east 5 to 10 mph in the morning. Winds could gust as high as 17 mph.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 40. East wind 5 to 9 mph becoming calm. Winds could gust as high as 15 mph.

    Low: 40 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 40. Southwest wind around 6 mph.
Sunday
A 20 percent chance of showers before noon. Sunny, with a high near 57. West northwest wind 7 to 10 mph, with gusts as high as 16 mph.
Sunday Night
Partly cloudy, with a low around 37. Northwest wind 5 to 7 mph becoming calm in the evening.
Monday
Sunny, with a high near 58. Light and variable wind becoming east 5 to 10 mph in the morning. Winds could gust as high as 17 mph.
Monday Night
Partly cloudy, with a low around 40. East wind 5 to 9 mph becoming calm. Winds could gust as high as 15 mph.
Tuesday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 62.
Tuesday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 43.
Wednesday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 62.
Wednesday Night
Mostly cloudy, with a low around 42.
Thursday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 62.
Thursday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 44.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 61.
Friday Night
A chance of showers. Partly cloudy, with a low around 45.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Blue Valley CO
 39.7°N 105.5°W (Elev. 10197 ft)
Last Update:
12:46 pm MDT Sep 19, 2026
Forecast Valid:
11pm MDT Sep 19, 2026-6pm MDT Sep 26, 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