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

69°F

21°C

Humidity 55%
Wind Speed NW 6 mph
Barometer 30.15 in
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 14 Jul 3:55 am MDT
Extended Forecast for

Longmont CO

  • Today

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

    High: 95 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 60. South southwest wind 5 to 9 mph becoming light and variable. Winds could gust as high as 15 mph. Chance of precipitation is 20%.

    Low: 60 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 96. West northwest wind 5 to 9 mph becoming south in the afternoon. Winds could gust as high as 15 mph.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 60. South wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 18 mph.

    Low: 60 °F

    Slight Chance
    Showers 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 89. Calm wind becoming east southeast 5 to 7 mph in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 70%.

    High: 89 °F

    Partly Sunny
    then T-storms
    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 57. Chance of precipitation is 50%.

    Low: 57 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny
    then Chance
    T-storms

  • Thursday Night

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

    Low: 59 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 95. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Tonight
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 60. South southwest wind 5 to 9 mph becoming light and variable. Winds could gust as high as 15 mph. Chance of precipitation is 20%.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 96. West northwest wind 5 to 9 mph becoming south in the afternoon. Winds could gust as high as 15 mph.
Tuesday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 60. South wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 18 mph.
Wednesday
Showers likely and possibly a thunderstorm between noon and 3pm, then showers and thunderstorms likely after 3pm. Mostly cloudy, with a high near 89. Calm wind becoming east southeast 5 to 7 mph in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 70%.
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 57. Chance of precipitation is 50%.
Thursday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 86.
Thursday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 59.
Friday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92.
Friday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 61.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 91.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
Longmont CO
 40.16°N 105.12°W (Elev. 5000 ft)
Last Update:
4:01 am MDT Jul 14, 2025
Forecast Valid:
4am MDT Jul 14, 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