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

-1°F

-18°C

Humidity 82%
Wind Speed W 3 mph
Barometer 30.27 in
Dewpoint -5°F (-21°C)
Visibility 1.75 mi
Last update 25 Jan 8:55 pm MST
Extended Forecast for

Longmont CO

Cold Weather Advisory January 25, 09:03pm until January 26, 09:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory January 25, 09:03pm until January 26, 09:00am

    NOW until 9:00am Mon

    Cold Weather Advisory

  • Tonight

    Low: -5 °F

    Slight Chance
    Snow then
    Mostly Clear

  • Monday

    Monday: Patchy blowing snow between 11am and noon. Sunny, with a high near 42. Wind chill values as low as -14. Breezy, with a west wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 24 mph.

    High: 42 °F

    Breezy.
    Patchy
    Blowing Snow
    then Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 18. Breezy, with a west wind 9 to 15 mph, with gusts as high as 18 mph.

    Low: 18 °F

    Mostly Clear
    and Breezy
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 46. West wind around 6 mph becoming calm in the morning.

    High: 46 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 19. West wind 3 to 6 mph.

    Low: 19 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 22.

    Low: 22 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

Detailed Forecast

Tonight
A 20 percent chance of snow before 11pm. Partly cloudy, with a low around -5. Wind chill values as low as -15. Light and variable wind becoming southwest around 6 mph in the evening.
Monday
Patchy blowing snow between 11am and noon. Sunny, with a high near 42. Wind chill values as low as -14. Breezy, with a west wind 8 to 13 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 24 mph.
Monday Night
Increasing clouds, with a low around 18. Breezy, with a west wind 9 to 15 mph, with gusts as high as 18 mph.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 46. West wind around 6 mph becoming calm in the morning.
Tuesday Night
Mostly clear, with a low around 19. West wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 49.
Wednesday Night
Partly cloudy, with a low around 22.
Thursday
Mostly sunny, with a high near 49.
Thursday Night
Partly cloudy, with a low around 22.
Friday
Mostly sunny, with a high near 46.
Friday Night
Partly cloudy, with a low around 23.
Saturday
Mostly sunny, with a high near 55.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Longmont CO
 40.19°N 105.09°W (Elev. 5010 ft)
Last Update:
2:17 pm MST Jan 25, 2026
Forecast Valid:
9pm MST Jan 25, 2026-6pm MST Feb 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation