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

95°F

35°C

Humidity 14%
Wind Speed E 5 mph
Barometer 30.17 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 13 Jul 3:55 pm MDT
Extended Forecast for

Longmont CO

  • 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 61. East wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 96. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 96 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 60. South wind 5 to 8 mph becoming light and variable after midnight. Winds could gust as high as 18 mph.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 95. Light and variable wind becoming north northeast 5 to 8 mph in the morning. Winds could gust as high as 18 mph.

    High: 95 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: 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 60. North northwest wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 20%.

    Low: 60 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 88. Chance of precipitation is 60%.

    High: 88 °F

    Partly Sunny
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.

    Low: 58 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 85.

    High: 85 °F

    Partly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 59.

    Low: 59 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

Detailed Forecast

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 61. East wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 20%.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 96. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 60. South wind 5 to 8 mph becoming light and variable after midnight. Winds could gust as high as 18 mph.
Tuesday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 95. Light and variable wind becoming north northeast 5 to 8 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
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 60. North northwest wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 20%.
Wednesday
Showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 88. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 85.
Thursday Night
A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 59.
Friday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 91.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 91.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Longmont CO
 40.19°N 105.09°W (Elev. 5010 ft)
Last Update:
2:21 pm MDT Jul 13, 2025
Forecast Valid:
4pm MDT Jul 13, 2025-6pm MDT Jul 20, 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