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

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Current conditions at

Broomfield / Jeffco (KBJC)

Lat: 39.9°NLon: 105.1°WElev: 5551ft.

Fair

79°F

26°C

Humidity 9%
Wind Speed E 3 mph
Barometer 30.23 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 17 Oct 4:47 pm MDT
Extended Forecast for

Derby CO

  • Tonight

    Tonight: Clear, with a low around 42. Light and variable wind becoming south southwest around 5 mph after midnight.

    Low: 42 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 75. Calm wind becoming east 5 to 8 mph in the afternoon.

    High: 75 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 47. Light and variable wind.

    Low: 47 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 69. Calm wind becoming east northeast around 6 mph in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 45. East northeast wind around 6 mph becoming calm in the evening.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 42. Light and variable wind becoming south southwest around 5 mph after midnight.
Sunday
Sunny, with a high near 75. Calm wind becoming east 5 to 8 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 47. Light and variable wind.
Monday
Mostly sunny, with a high near 69. Calm wind becoming east northeast around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 45. East northeast wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 73.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Mostly sunny, with a high near 74.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
Partly sunny, with a high near 74.
Thursday Night
Mostly cloudy, with a low around 55.
Friday
A slight chance of showers. Mostly sunny, with a high near 74.
Friday Night
A chance of showers. Mostly cloudy, with a low around 50.
Saturday
A chance of showers. Partly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Derby CO
 39.84°N 104.91°W (Elev. 5121 ft)
Last Update:
12:46 pm MDT Oct 17, 2026
Forecast Valid:
5pm MDT Oct 17, 2026-6pm MDT Oct 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