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

Hazardous Weather Conditions

Current conditions at

Vance Brand Airport (KLMO)

Lat: 40.16°NLon: 105.16°WElev: 5039ft.

Light Snow

-7°C

19°F

Humidity 85%
Wind Speed N 11 km/h
Barometer 30.06 in
Dewpoint -9°C (15°F)
Visibility 4.02 km
Wind Chill-12°C (10°F)
Last update 18 Jan 1:35 am MST
Extended Forecast for

Longmont CO

Cold Weather Advisory January 19, 12:00am until January 21, 09:00am
Winter Weather Advisory January 18, 01:48am until January 18, 05:00pm
Click here for hazard details and duration
Cold Weather Advisory
Winter Weather Advisory
  •  
    Winter Weather Advisory January 18, 01:48am until January 18, 05:00pm

    NOW until 5:00pm Sat

    Winter Weather Advisory

  • Overnight

    Low: -13 °C

    Snow

  • Saturday

    Saturday: Snow likely, mainly before 8am. Cloudy, with a high near -8. Wind chill values as low as -19. Northeast wind 10 to 13 km/h. Chance of precipitation is 70%. New snow accumulation of 1 to 3 centimeters possible.

    High: -8 °C

    Snow Likely
    then Chance
    Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around -19. North northeast wind 5 to 8 km/h becoming calm. New snow accumulation of less than one centimeter possible.

    Low: -19 °C

    Chance Snow
    then Mostly
    Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near -8. Wind chill values as low as -22. Calm wind.

    High: -8 °C

    Partly Sunny

  • Sunday Night

    Sunday Night: Snow likely, mainly after 11pm. Cloudy, with a low around -19. Calm wind. Chance of precipitation is 60%.

    Low: -19 °C

    Snow Likely

  • M.L.King Day

    M.L.King Day: Partly sunny and cold, with a high near -12.

    High: -12 °C

    Cold

  • Monday Night

    Monday Night: Mostly clear, with a low around -23.

    Low: -23 °C

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 1.

    High: 1 °C

    Mostly Sunny

Detailed Forecast

Overnight
Snow. Low around -13. North northeast wind around 10 km/h. Chance of precipitation is 90%. Total nighttime snow accumulation of 7 to 11 centimeters possible.
Saturday
Snow likely, mainly before 8am. Cloudy, with a high near -8. Wind chill values as low as -19. Northeast wind 10 to 13 km/h. Chance of precipitation is 70%. New snow accumulation of 1 to 3 centimeters possible.
Saturday Night
A 30 percent chance of snow before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around -19. North northeast wind 5 to 8 km/h becoming calm. New snow accumulation of less than one centimeter possible.
Sunday
Partly sunny, with a high near -8. Wind chill values as low as -22. Calm wind.
Sunday Night
Snow likely, mainly after 11pm. Cloudy, with a low around -19. Calm wind. Chance of precipitation is 60%.
M.L.King Day
Partly sunny and cold, with a high near -12.
Monday Night
Mostly clear, with a low around -23.
Tuesday
Mostly sunny, with a high near 1.
Tuesday Night
Partly cloudy, with a low around -11.
Wednesday
Mostly sunny, with a high near 1.
Wednesday Night
Mostly cloudy, with a low around -12.
Thursday
Mostly sunny, with a high near 0.
Thursday Night
Partly cloudy, with a low around -11.
Friday
Mostly sunny, with a high near 6.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Longmont CO
 40.16°N 105.12°W (Elev. 5000 m)
Last Update:
2:52 pm MST Jan 17, 2025
Forecast Valid:
1am MST Jan 18, 2025-6pm MST Jan 24, 2025
 
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