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

42°F

6°C

Humidity 67%
Wind Speed Calm
Barometer 30.11 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 23 Mar 8:35 am MDT
Extended Forecast for

Longmont CO

  • Today

    Today: Mostly cloudy, with a high near 73. Calm wind becoming north northeast 5 to 7 mph in the afternoon.

    High: 73 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 45. East northeast wind 5 to 8 mph becoming calm after midnight.

    Low: 45 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 84. Calm wind becoming south southwest 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 84 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 51. West southwest wind 3 to 6 mph. Winds could gust as high as 15 mph.

    Low: 51 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 89. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 25 mph.

    High: 89 °F

    Sunny

  • Wednesday Night

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

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of rain before midnight. Mostly cloudy, with a low around 35. Breezy.

    Low: 35 °F

    Slight Chance
    Rain and
    Breezy then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 73. Calm wind becoming north northeast 5 to 7 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 45. East northeast wind 5 to 8 mph becoming calm after midnight.
Tuesday
Mostly sunny, with a high near 84. Calm wind becoming south southwest 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.
Tuesday Night
Partly cloudy, with a low around 51. West southwest wind 3 to 6 mph. Winds could gust as high as 15 mph.
Wednesday
Sunny, with a high near 89. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 25 mph.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Mostly sunny, with a high near 71.
Thursday Night
A slight chance of rain before midnight. Mostly cloudy, with a low around 35. Breezy.
Friday
Partly sunny, with a high near 58.
Friday Night
Mostly cloudy, with a low around 33.
Saturday
Partly sunny, with a high near 69.
Saturday Night
Mostly cloudy, with a low around 43.
Sunday
Partly sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Longmont CO
 40.16°N 105.12°W (Elev. 5000 ft)
Last Update:
12:46 am MDT Mar 23, 2026
Forecast Valid:
8am MDT Mar 23, 2026-6pm MDT Mar 29, 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