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.

Fair

74°F

23°C

Humidity 11%
Wind Speed E 5 mph
Barometer 29.64 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 16 Apr 3:35 pm MDT
Extended Forecast for

Longmont CO

Freeze Warning April 17, 08:00pm until April 18, 08:00am
Click here for hazard details and duration
Freeze Warning

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 76. Breezy, with a south southwest wind 13 to 16 mph, with gusts as high as 25 mph.

    High: 76 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 35. Breezy, with a south southwest wind 8 to 13 mph becoming north 17 to 22 mph. Winds could gust as high as 34 mph.

    Low: 35 °F

    Mostly Cloudy
    and Breezy

  • Friday

    Friday: Snow. High near 40. East northeast wind 8 to 14 mph becoming north northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Snow

  • Friday Night

    Friday Night: A 40 percent chance of snow showers before midnight. Partly cloudy, with a low around 24. West wind 5 to 11 mph, with gusts as high as 18 mph. Little or no snow accumulation expected.

    Low: 24 °F

    Chance Snow
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 58. Light and variable wind becoming north northwest 5 to 8 mph in the morning.

    High: 58 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 76. Breezy, with a south southwest wind 13 to 16 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, with a low around 35. Breezy, with a south southwest wind 8 to 13 mph becoming north 17 to 22 mph. Winds could gust as high as 34 mph.
Friday
Snow. High near 40. East northeast wind 8 to 14 mph becoming north northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday Night
A 40 percent chance of snow showers before midnight. Partly cloudy, with a low around 24. West wind 5 to 11 mph, with gusts as high as 18 mph. Little or no snow accumulation expected.
Saturday
Sunny, with a high near 58. Light and variable wind becoming north northwest 5 to 8 mph in the morning.
Saturday Night
Mostly clear, with a low around 30.
Sunday
Sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 40.
Monday
Mostly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Mostly cloudy, with a low around 49.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 81. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Longmont CO
 40.16°N 105.12°W (Elev. 5000 ft)
Last Update:
12:46 pm MDT Apr 16, 2026
Forecast Valid:
3pm MDT Apr 16, 2026-6pm MDT Apr 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation