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.

Overcast

52°F

11°C

Humidity 82%
Wind Speed NE 6 mph
Barometer 29.96 in
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 13 Oct 5:15 am MDT
Extended Forecast for

Longmont CO

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 63. East northeast wind 3 to 7 mph.

    High: 63 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely after 9pm. Mostly cloudy, with a low around 43. Light north northeast wind becoming east northeast 5 to 10 mph after midnight. Winds could gust as high as 16 mph. Chance of precipitation is 70%.

    Low: 43 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers. Steady temperature around 46. East northeast wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.

    High: 46 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers. Low around 40. North northeast wind 3 to 5 mph. Chance of precipitation is 90%.

    Low: 40 °F

    Showers

  • Thursday

    Thursday: Showers, mainly before noon. High near 55. Breezy, with a north wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 80%.

    High: 55 °F

    Breezy.
    Showers then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers, mainly before midnight. Partly cloudy, with a low around 34.

    Low: 34 °F

    Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 63. East northeast wind 3 to 7 mph.
Tonight
A chance of showers and thunderstorms, then showers likely after 9pm. Mostly cloudy, with a low around 43. Light north northeast wind becoming east northeast 5 to 10 mph after midnight. Winds could gust as high as 16 mph. Chance of precipitation is 70%.
Wednesday
Showers. Steady temperature around 46. East northeast wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 80%.
Wednesday Night
Showers. Low around 40. North northeast wind 3 to 5 mph. Chance of precipitation is 90%.
Thursday
Showers, mainly before noon. High near 55. Breezy, with a north wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 80%.
Thursday Night
A 30 percent chance of showers, mainly before midnight. Partly cloudy, with a low around 34.
Friday
Sunny, with a high near 61.
Friday Night
Mostly clear, with a low around 35.
Saturday
Sunny, with a high near 72.
Saturday Night
Mostly clear, with a low around 41.
Sunday
Sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Sunny, with a high near 74.
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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:
12:46 am MDT Oct 13, 2026
Forecast Valid:
5am MDT Oct 13, 2026-6pm MDT Oct 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