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

Heavy Rainfall and Flash Flood Threats Shift From Southern Plains to Lower Mississippi Valley; Elevated to Critical Fire Concerns Out West

Heavy to excessive rainfall with flash flood concerns will shift from the southern Plains into the Lower Mississippi Valley. Elevated to Critical Fire weather threats will linger through the weekend across the Great Basin and central Rockies. Finally, Major to Record river flooding will continue in portions of the Midwest and across parts of North and South Carolina this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Vance Brand Airport (KLMO)

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

Fair

85°F

29°C

Humidity 13%
Wind Speed E 8 mph
Barometer 30.16 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 22 Sep 12:35 pm MDT
Extended Forecast for

Longmont CO

  • This
    Afternoon

    This Afternoon: Sunny, with a high near 85. East southeast wind 5 to 9 mph.

    Sunny

    High: 85 °F

  • Tonight

    Tonight: Clear, with a low around 53. Southeast wind 5 to 7 mph becoming light and variable after midnight.

    Clear

    Low: 53 °F

  • Sunday

    Sunday: Sunny, with a high near 87. Light and variable wind becoming south around 5 mph.

    Sunny

    High: 87 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 55. Light and variable wind becoming west southwest 5 to 7 mph in the evening.

    Partly Cloudy

    Low: 55 °F

  • Monday

    Monday: A 10 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 76. North northwest wind 5 to 7 mph becoming south southeast in the morning.

    Partly Sunny
    then Slight
    Chance
    T-storms

    High: 76 °F

  • Monday
    Night

    Monday Night: A 10 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 49.

    Slight Chance
    T-storms then
    Partly Cloudy

    Low: 49 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 64.

    Mostly Sunny

    High: 64 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 46.

    Partly Cloudy

    Low: 46 °F

  • Wednesday

    Wednesday: Sunny, with a high near 72.

    Sunny

    High: 72 °F

Detailed Forecast

This Afternoon
Sunny, with a high near 85. East southeast wind 5 to 9 mph.
Tonight
Clear, with a low around 53. Southeast wind 5 to 7 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 87. Light and variable wind becoming south around 5 mph.
Sunday Night
Partly cloudy, with a low around 55. Light and variable wind becoming west southwest 5 to 7 mph in the evening.
Monday
A 10 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 76. North northwest wind 5 to 7 mph becoming south southeast in the morning.
Monday Night
A 10 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 64.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 70.
Thursday Night
Mostly clear, with a low around 46.
Friday
Sunny, with a high near 80.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Longmont CO
 40.16°N 105.12°W (Elev. 5000 ft)
Last Update:
6:07 am MDT Sep 22, 2018
Forecast Valid:
12pm MDT Sep 22, 2018-6pm MDT Sep 28, 2018
 
Forecast Discussion
 
Get as KML Get as XML

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