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

Severe Weather and Flooding Expected Across the Southern Plains, Mid South, & Ohio Valley

Strong to severe thunderstorms, including tornadoes, are expected late today and tonight and continuing through Friday from the southern Plains to the Mid South and Ohio Valley, where heavy rainfall and flooding are also likely. Elsewhere, chilly temperatures and heavy mountain snowfall will persist for parts of the West while very mild air prevails along the East Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Vance Brand Airport (KLMO)

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

Partly Cloudy

13°C

55°F

Humidity 26%
Wind Speed Calm
Barometer 29.90 in
Dewpoint -7°C (20°F)
Visibility 16 km
Last update 23 Mar 3:15 pm MDT
Extended Forecast for

Longmont CO

  • This
    Afternoon

    This Afternoon: A slight chance of rain and snow showers. Partly sunny, with a high near 9. South southwest wind around 14 km/h becoming northwest. Winds could gust as high as 24 km/h. Chance of precipitation is 20%.

    Slight Chance
    Rain/Snow

    High: 9 °C

  • Tonight

    Tonight: A chance of rain and snow showers before 1am, then a slight chance of snow showers between 1am and 2am. Mostly cloudy, with a low around -3. West northwest wind 5 to 14 km/h becoming southwest in the evening. Winds could gust as high as 24 km/h. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Chance
    Rain/Snow

    Low: -3 °C

  • Friday

    Friday: A 30 percent chance of showers after 3pm. Mostly sunny, with a high near 11. West northwest wind 5 to 10 km/h becoming north northwest 13 to 18 km/h in the afternoon. Winds could gust as high as 29 km/h.

    Mostly Sunny
    then Chance
    Showers

    High: 11 °C

  • Friday
    Night

    Friday Night: Rain and snow likely, becoming all snow after 9pm. Cloudy, with a low around -5. Breezy, with a north northwest wind 16 to 21 km/h increasing to 27 to 32 km/h after midnight. Winds could gust as high as 50 km/h. Chance of precipitation is 70%. New snow accumulation of 3 to 5 centimeters possible.

    Rain/Snow
    Likely then
    Snow Likely
    and Breezy

    Low: -5 °C

  • Saturday

    Saturday: Snow likely, mainly before noon. Patchy blowing snow before 8am. Mostly cloudy, with a high near 2. Windy, with a west northwest wind 37 to 42 km/h decreasing to 26 to 31 km/h in the morning. Winds could gust as high as 65 km/h. Chance of precipitation is 60%.

    Snow Likely
    and Patchy
    Blowing Snow

    High: 2 °C

  • Saturday
    Night

    Saturday Night: A 20 percent chance of snow. Mostly cloudy, with a low around -8. Blustery.

    Slight Chance
    Snow and
    Blustery

    Low: -8 °C

  • Sunday

    Sunday: A 20 percent chance of snow after noon. Partly sunny, with a high near 4.

    Mostly Sunny
    then Slight
    Chance Snow

    High: 4 °C

  • Sunday
    Night

    Sunday Night: A slight chance of snow before midnight. Mostly cloudy, with a low around -9.

    Slight Chance
    Snow then
    Mostly Cloudy

    Low: -9 °C

  • Monday

    Monday: Mostly sunny, with a high near 5.

    Mostly Sunny

    High: 5 °C

Detailed Forecast

This Afternoon
A slight chance of rain and snow showers. Partly sunny, with a high near 9. South southwest wind around 14 km/h becoming northwest. Winds could gust as high as 24 km/h. Chance of precipitation is 20%.
Tonight
A chance of rain and snow showers before 1am, then a slight chance of snow showers between 1am and 2am. Mostly cloudy, with a low around -3. West northwest wind 5 to 14 km/h becoming southwest in the evening. Winds could gust as high as 24 km/h. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday
A 30 percent chance of showers after 3pm. Mostly sunny, with a high near 11. West northwest wind 5 to 10 km/h becoming north northwest 13 to 18 km/h in the afternoon. Winds could gust as high as 29 km/h.
Friday Night
Rain and snow likely, becoming all snow after 9pm. Cloudy, with a low around -5. Breezy, with a north northwest wind 16 to 21 km/h increasing to 27 to 32 km/h after midnight. Winds could gust as high as 50 km/h. Chance of precipitation is 70%. New snow accumulation of 3 to 5 centimeters possible.
Saturday
Snow likely, mainly before noon. Patchy blowing snow before 8am. Mostly cloudy, with a high near 2. Windy, with a west northwest wind 37 to 42 km/h decreasing to 26 to 31 km/h in the morning. Winds could gust as high as 65 km/h. Chance of precipitation is 60%.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around -8. Blustery.
Sunday
A 20 percent chance of snow after noon. Partly sunny, with a high near 4.
Sunday Night
A slight chance of snow before midnight. Mostly cloudy, with a low around -9.
Monday
Mostly sunny, with a high near 5.
Monday Night
Partly cloudy, with a low around -9.
Tuesday
Mostly sunny, with a high near 9.
Tuesday Night
Partly cloudy, with a low around -4.
Wednesday
Mostly sunny, with a high near 14.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around -3.
Thursday
A slight chance of rain and snow. Partly sunny, with a high near 11.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Longmont CO
 40.16°N 105.12°W (Elev. 1524 m)
Last Update:
2:40 pm MDT Mar 23, 2023
Forecast Valid:
3pm MDT Mar 23, 2023-6pm MDT Mar 30, 2023
 
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