National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Vance Brand Airport (KLMO)

Lat: 40.16°NLon: 105.16°WElev: 5039ft.

Fair

46°F

8°C

Humidity 32%
Wind Speed W 6 mph
Barometer 30.12 in
Dewpoint 17°F (-8°C)
Visibility 7.00 mi
Wind Chill43°F (6°C)
Last update 19 Apr 9:35 pm MDT
Extended Forecast for

Longmont CO

  • Tonight

    Tonight: Mostly clear, with a low around 38. West northwest wind 3 to 5 mph.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 80. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46. North wind around 6 mph becoming west after midnight.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 82. Calm wind becoming southeast 5 to 9 mph in the afternoon. Winds could gust as high as 16 mph.

    High: 82 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 50. South wind 5 to 7 mph becoming west in the evening.

    Low: 50 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 82. Breezy.

    High: 82 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44. Windy.

    Low: 44 °F

    Mostly Clear
    and Windy

  • Thursday

    Thursday: A slight chance of showers after noon. Mostly sunny, with a high near 68. Breezy.

    High: 68 °F

    Breezy. Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of rain showers before 3am, then a chance of rain and snow showers. Mostly cloudy, with a low around 35. Breezy.

    Low: 35 °F

    Chance
    Showers and
    Breezy then
    Chance
    Rain/Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 38. West northwest wind 3 to 5 mph.
Monday
Mostly sunny, with a high near 80. Calm wind becoming southeast around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 46. North wind around 6 mph becoming west after midnight.
Tuesday
Mostly sunny, with a high near 82. Calm wind becoming southeast 5 to 9 mph in the afternoon. Winds could gust as high as 16 mph.
Tuesday Night
Partly cloudy, with a low around 50. South wind 5 to 7 mph becoming west in the evening.
Wednesday
Mostly sunny, with a high near 82. Breezy.
Wednesday Night
Mostly clear, with a low around 44. Windy.
Thursday
A slight chance of showers after noon. Mostly sunny, with a high near 68. Breezy.
Thursday Night
A chance of rain showers before 3am, then a chance of rain and snow showers. Mostly cloudy, with a low around 35. Breezy.
Friday
A slight chance of rain and snow showers before 9am, then a chance of rain showers. Some thunder is also possible. Partly sunny, with a high near 57.
Friday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 32.
Saturday
A chance of rain and snow showers. Some thunder is also possible. Partly sunny, with a high near 55.
Saturday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 33.
Sunday
A chance of rain and snow showers. Some thunder is also possible. Partly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Longmont CO
 40.16°N 105.12°W (Elev. 5000 ft)
Last Update:
12:47 pm MDT Apr 19, 2026
Forecast Valid:
9pm MDT Apr 19, 2026-6pm MDT Apr 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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