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

Vance Brand Airport (KLMO)

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

Fair

32°F

0°C

Humidity 74%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 24°F (-4°C)
Visibility 7.00 mi
Last update 13 Nov 4:15 am MST
Extended Forecast for

Longmont CO

  • Today

    Today: Partly sunny, with a high near 64. Light and variable wind.

    High: 64 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 35. Northwest wind around 5 mph becoming calm in the evening.

    Low: 35 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: A 20 percent chance of rain after noon. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 53. Light and variable wind.

    High: 53 °F

    Patchy Fog
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 34. Light north northwest wind.

    Low: 34 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 55. Light and variable wind.

    High: 55 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 64. Light and variable wind.
Tonight
Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 35. Northwest wind around 5 mph becoming calm in the evening.
Saturday
A 20 percent chance of rain after noon. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 53. Light and variable wind.
Saturday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 34. Light north northwest wind.
Sunday
Sunny, with a high near 55. Light and variable wind.
Sunday Night
Mostly clear, with a low around 31.
Monday
Sunny, with a high near 61.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Mostly sunny, with a high near 61.
Tuesday Night
Partly cloudy, with a low around 35.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 55.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 53.
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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:
2:58 am MST Nov 13, 2026
Forecast Valid:
4am MST Nov 13, 2026-6pm MST Nov 19, 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