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

33°C

92°F

Humidity 19%
Wind Speed NE 22 G 31 km/h
Barometer 30.03 in
Dewpoint 7°C (45°F)
Visibility 11 km
Heat Index31°C (88°F)
Last update 15 Jul 3:35 pm MDT
Extended Forecast for

Longmont CO

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a steady temperature around 33. North wind 14 to 16 km/h, with gusts as high as 26 km/h.

    High: 33 °C

    Slight Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 16. North wind 8 to 14 km/h, with gusts as high as 24 km/h. Chance of precipitation is 20%.

    Low: 16 °C

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. Mostly cloudy, with a high near 28. North wind 5 to 13 km/h becoming east southeast in the afternoon. Chance of precipitation is 70%.

    High: 28 °C

    Partly Sunny
    then T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before midnight. Mostly cloudy, with a low around 14. East southeast wind 8 to 13 km/h becoming light and variable in the evening. Winds could gust as high as 29 km/h. Chance of precipitation is 70%.

    Low: 14 °C

    Showers
    Likely then
    Mostly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 31. Calm wind becoming east southeast 5 to 10 km/h in the afternoon. Winds could gust as high as 26 km/h.

    High: 31 °C

    Partly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 15.

    Low: 15 °C

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 34.

    High: 34 °C

    Partly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 16.

    Low: 16 °C

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 32.

    High: 32 °C

    Mostly Sunny
    then Showers
    Likely

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a steady temperature around 33. North wind 14 to 16 km/h, with gusts as high as 26 km/h.
Tonight
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 16. North wind 8 to 14 km/h, with gusts as high as 24 km/h. Chance of precipitation is 20%.
Wednesday
Showers likely and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. Mostly cloudy, with a high near 28. North wind 5 to 13 km/h becoming east southeast in the afternoon. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before midnight. Mostly cloudy, with a low around 14. East southeast wind 8 to 13 km/h becoming light and variable in the evening. Winds could gust as high as 29 km/h. Chance of precipitation is 70%.
Thursday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 31. Calm wind becoming east southeast 5 to 10 km/h in the afternoon. Winds could gust as high as 26 km/h.
Thursday Night
Mostly cloudy, with a low around 15.
Friday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 34.
Friday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 16.
Saturday
Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 32.
Saturday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 16.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 33.
Sunday Night
Partly cloudy, with a low around 17.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
Longmont CO
 40.16°N 105.12°W (Elev. 5000 m)
Last Update:
2:47 pm MDT Jul 15, 2025
Forecast Valid:
3pm MDT Jul 15, 2025-6pm MDT Jul 21, 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