Severe Weather in the Central U.S.; Heavy Rain in the Ohio Valley and Mid-Atlantic

Scattered severe thunderstorms capable of producing severe gusts, large hail, and perhaps a couple tornadoes are forecast from the north-central High Plains into the Upper Mississippi Valley. Widespread thunderstorms may produce excessive rainfall across portions of the Ohio Valley and Mid-Atlantic. Hot conditions and Critical Fire Weather looms over the Great Basin and Southwest through midweek. Read More >

Hazardous Weather Conditions

Current conditions at

Vance Brand Airport (KLMO)

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

Fair

92°F

33°C

Humidity 14%
Wind Speed E 6 mph
Barometer 30.03 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 16 Jun 12:15 pm MDT
Extended Forecast for

Longmont CO

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 91. East northeast wind around 9 mph, with gusts as high as 15 mph.

    High: 91 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 58. North wind 5 to 10 mph, with gusts as high as 16 mph.

    Low: 58 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 81. Light north wind becoming north northeast 5 to 9 mph in the morning. Winds could gust as high as 20 mph.

    High: 81 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 53. North northeast wind 5 to 8 mph becoming calm  in the evening. Winds could gust as high as 18 mph.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86. Calm wind becoming east 5 to 7 mph in the afternoon. Winds could gust as high as 17 mph.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 96.

    High: 96 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 99. Breezy.

    High: 99 °F

    Sunny then
    Sunny and
    Breezy

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. East northeast wind around 9 mph, with gusts as high as 15 mph.
Tonight
Partly cloudy, with a low around 58. North wind 5 to 10 mph, with gusts as high as 16 mph.
Tuesday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 81. Light north wind becoming north northeast 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
Tuesday Night
Mostly clear, with a low around 53. North northeast wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Wednesday
Sunny, with a high near 86. Calm wind becoming east 5 to 7 mph in the afternoon. Winds could gust as high as 17 mph.
Wednesday Night
Mostly clear, with a low around 56.
Juneteenth
Sunny, with a high near 96.
Thursday Night
Mostly clear, with a low around 61.
Friday
Sunny and hot, with a high near 99. Breezy.
Friday Night
Mostly clear, with a low around 63.
Saturday
Sunny and hot, with a high near 99.
Saturday Night
Mostly clear, with a low around 62.
Sunday
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)
4:01 am MDT Jun 16, 2025
12pm MDT Jun 16, 2025-6pm MDT Jun 22, 2025
 
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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