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

65°F

18°C

Humidity 64%
Wind Speed W 3 mph
Barometer 30.25 in
Dewpoint 52°F (11°C)
Visibility 7.00 mi
Last update 8 Sep 9:15 pm MDT
Extended Forecast for

Longmont CO

  • Tonight

    Tonight: Mostly clear, with a low around 56. Light and variable wind becoming northwest around 6 mph after midnight.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83. Light and variable wind becoming east northeast around 6 mph in the morning.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53. East southeast wind around 6 mph becoming calm in the evening.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57. East southeast wind around 6 mph becoming west in the evening.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers. Partly cloudy, with a low around 57.

    Low: 57 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers before midnight. Partly cloudy, with a low around 56.

    Low: 56 °F

    Slight Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 56. Light and variable wind becoming northwest around 6 mph after midnight.
Wednesday
Sunny, with a high near 83. Light and variable wind becoming east northeast around 6 mph in the morning.
Wednesday Night
Mostly clear, with a low around 53. East southeast wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 90. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 57. East southeast wind around 6 mph becoming west in the evening.
Friday
Mostly sunny, with a high near 91.
Friday Night
A 20 percent chance of showers. Partly cloudy, with a low around 57.
Saturday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82.
Saturday Night
A slight chance of showers before midnight. Partly cloudy, with a low around 56.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86.
Sunday Night
A chance of showers. Partly cloudy, with a low around 55.
Monday
Mostly sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 53.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Longmont CO
 40.16°N 105.12°W (Elev. 5000 ft)
Last Update:
2:22 pm MDT Sep 8, 2026
Forecast Valid:
9pm MDT Sep 8, 2026-6pm MDT Sep 15, 2026
 
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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