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

Significant Coastal Impacts to the Eastern Seaboard; Tropical Storm Nolo to Impact Hawaii

A Nor'easter will bring significant coastal impacts to the Mid-Atlantic and New England through the weekend. Moderate to major coastal flooding, heavy rain, strong winds and high surf expected. Tropical Storm Nolo will continue to strengthen as it moves north toward the Big Island of Hawaii. Heavy rainfall may bring life-threatening, catastrophic flooding and mudslides through the weekend. Read More >

Current conditions at

Broomfield / Jeffco (KBJC)

Lat: 39.9°NLon: 105.1°WElev: 5551ft.

Partly Cloudy

61°F

16°C

Humidity 72%
Wind Speed NW 5 mph
Barometer 30.28 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 25 Sep 1:15 am MDT
Extended Forecast for

Louisville CO

  • Overnight

    Overnight: A 30 percent chance of showers before 3am. Patchy fog. Otherwise, mostly cloudy, with a low around 53. Calm wind.

    Low: 53 °F

    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms after noon. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 73. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 73 °F

    Patchy Fog
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 53. Light southwest wind becoming west southwest 5 to 9 mph in the evening. Winds could gust as high as 15 mph.

    Low: 53 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82. West wind 5 to 10 mph becoming east southeast in the afternoon. Winds could gust as high as 16 mph.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 53. South southeast wind around 6 mph becoming light and variable after midnight.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Showers

Detailed Forecast

Overnight
A 30 percent chance of showers before 3am. Patchy fog. Otherwise, mostly cloudy, with a low around 53. Calm wind.
Friday
A 50 percent chance of showers and thunderstorms after noon. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 73. Calm wind becoming west southwest around 6 mph in the afternoon.
Friday Night
A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 53. Light southwest wind becoming west southwest 5 to 9 mph in the evening. Winds could gust as high as 15 mph.
Saturday
Sunny, with a high near 82. West wind 5 to 10 mph becoming east southeast in the afternoon. Winds could gust as high as 16 mph.
Saturday Night
Mostly clear, with a low around 53. South southeast wind around 6 mph becoming light and variable after midnight.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Mostly cloudy, with a low around 56.
Monday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 76.
Monday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 52.
Tuesday
Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 66.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 49.
Wednesday
A chance of showers. Partly sunny, with a high near 70.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 48.
Thursday
A slight chance of showers. Sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Louisville CO
 39.96°N 105.16°W (Elev. 5433 ft)
Last Update:
12:46 am MDT Sep 25, 2026
Forecast Valid:
1am MDT Sep 25, 2026-6pm MDT Oct 1, 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