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

51°F

11°C

Humidity 29%
Wind Speed SE 3 mph
Barometer 29.73 in
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 5 Mar 9:15 am MST
Extended Forecast for

Longmont CO

  • Today

    Today: A 10 percent chance of rain after 5pm. Increasing clouds, with a high near 66. Calm wind becoming east 5 to 8 mph in the afternoon.

    High: 66 °F

    Sunny then
    Slight Chance
    Rain

  • Tonight

    Tonight: Rain likely before 2am, then rain, possibly mixed with snow. Low around 31. North wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Rain Likely
    then
    Rain/Snow

  • Friday

    Friday: Snow, possibly mixed with rain, becoming all snow after 8am. High near 37. North wind 8 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    High: 37 °F

    Rain/Snow
    then Snow

  • Friday Night

    Friday Night: A 50 percent chance of snow before 11pm. Mostly cloudy, with a low around 20. North wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 18 mph. New snow accumulation of less than a half inch possible.

    Low: 20 °F

    Chance Snow
    then Partly
    Cloudy

  • Saturday

    Saturday: Sunny, with a high near 52. Calm wind becoming south southeast 5 to 7 mph in the morning. Winds could gust as high as 15 mph.

    High: 52 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

Detailed Forecast

Today
A 10 percent chance of rain after 5pm. Increasing clouds, with a high near 66. Calm wind becoming east 5 to 8 mph in the afternoon.
Tonight
Rain likely before 2am, then rain, possibly mixed with snow. Low around 31. North wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday
Snow, possibly mixed with rain, becoming all snow after 8am. High near 37. North wind 8 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Friday Night
A 50 percent chance of snow before 11pm. Mostly cloudy, with a low around 20. North wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 18 mph. New snow accumulation of less than a half inch possible.
Saturday
Sunny, with a high near 52. Calm wind becoming south southeast 5 to 7 mph in the morning. Winds could gust as high as 15 mph.
Saturday Night
Mostly clear, with a low around 26.
Sunday
Sunny, with a high near 63.
Sunday Night
Mostly clear, with a low around 34.
Monday
Mostly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 37.
Tuesday
A chance of rain. Partly sunny, with a high near 66.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 28.
Wednesday
A slight chance of snow. Mostly sunny, with a high near 55. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Longmont CO
 40.16°N 105.12°W (Elev. 5000 ft)
Last Update:
11:46 pm MST Mar 4, 2026
Forecast Valid:
9am MST Mar 5, 2026-6pm MDT Mar 11, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation