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

47°F

8°C

Humidity 84%
Wind Speed W 3 mph
Barometer 30.12 in
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 30 Sep 6:15 am MDT
Extended Forecast for

Longmont CO

  • Today

    Today: Sunny, with a high near 79. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 48. West southwest wind around 6 mph becoming light and variable after midnight.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 80. Light and variable wind becoming southeast around 5 mph.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50. Light and variable wind.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82. Calm wind becoming east southeast around 5 mph.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: A slight chance of showers. Partly cloudy, with a low around 53.

    Low: 53 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 73.

    High: 73 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 79. Calm wind becoming southeast around 6 mph in the afternoon.
Tonight
Partly cloudy, with a low around 48. West southwest wind around 6 mph becoming light and variable after midnight.
Wednesday
Sunny, with a high near 80. Light and variable wind becoming southeast around 5 mph.
Wednesday Night
Mostly clear, with a low around 50. Light and variable wind.
Thursday
Sunny, with a high near 82. Calm wind becoming east southeast around 5 mph.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 84.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 53.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 73.
Saturday Night
A chance of showers, mainly before midnight. Partly cloudy, with a low around 46.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 67.
Sunday Night
A slight chance of showers. Mostly cloudy, with a low around 44.
Monday
A slight chance of showers. Mostly sunny, with a high near 65.
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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:
5:45 am MDT Sep 30, 2025
Forecast Valid:
6am MDT Sep 30, 2025-6pm MDT Oct 6, 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