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 13%
Wind Speed E 3 mph
Barometer 30.00 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 14 Aug 2:15 pm MDT
Extended Forecast for

Longmont CO

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Partly sunny and hot, with a high near 99. East southeast wind around 8 mph becoming south.

    High: 99 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 61. North northeast wind 5 to 9 mph becoming light and variable after midnight.

    Low: 61 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 95. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 95 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 62. West wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 20%.

    Low: 62 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92. Calm wind becoming east southeast around 6 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday 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. Chance of precipitation is 20%.

    Low: 60 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 93.

    High: 93 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers and thunderstorms after noon. Sunny, with a high near 93.

    High: 93 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Partly sunny and hot, with a high near 99. East southeast wind around 8 mph becoming south.
Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 61. North northeast wind 5 to 9 mph becoming light and variable after midnight.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 95. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Friday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 62. West wind 6 to 11 mph becoming light after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 20%.
Saturday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92. Calm wind becoming east southeast around 6 mph in the afternoon. Winds could gust as high as 15 mph.
Saturday 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. Chance of precipitation is 20%.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 61.
Monday
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 93.
Monday Night
Mostly clear, with a low around 61.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 94.
Tuesday Night
Mostly clear, with a low around 61.
Wednesday
Sunny, with a high near 94.
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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 Aug 14, 2025
Forecast Valid:
2pm MDT Aug 14, 2025-6pm MDT Aug 20, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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