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Tracking Major Hurricane Erin; Hot in the Mid-Mississippi Valley

Major Hurricane Erin is tracking just north of the lower Bahamas today. Dangerous surf and rip current threats increase this week for most of the Atlantic coastline. Erin's outerbands may impact the Outer Banks later this week. Hot to extremely hot temperatures are forecast today and Tuesday from a part of the southern Plains into the central to lower Mississippi River Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Vance Brand Airport (KLMO)

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

Fair

89°F

32°C

Humidity 26%
Wind Speed NE 8 mph
Barometer 30.20 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 18 Aug 1:15 pm MDT
Extended Forecast for

3 Miles SSW Longmont CO

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a steady temperature around 88. East southeast wind 5 to 8 mph becoming south.

    High: 88 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 58. South southeast wind 5 to 9 mph becoming calm in the evening.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92. Calm wind becoming east southeast 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 92 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59. Southeast wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95. Calm wind becoming east southeast 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 95 °F

    Sunny

  • Wednesday Night

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

    Low: 61 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a steady temperature around 88. East southeast wind 5 to 8 mph becoming south.
Tonight
Mostly clear, with a low around 58. South southeast wind 5 to 9 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 92. Calm wind becoming east southeast 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Tuesday Night
Mostly clear, with a low around 59. Southeast wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph.
Wednesday
Sunny, with a high near 95. Calm wind becoming east southeast 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
Sunny and hot, with a high near 97.
Thursday Night
Partly cloudy, with a low around 61.
Friday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 83.
Friday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 58.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 84.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 56.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Longmont CO
 40.14°N 105.14°W (Elev. 5020 ft)
Last Update:
4:00 am MDT Aug 18, 2025
Forecast Valid:
1pm MDT Aug 18, 2025-6pm MDT Aug 24, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation