Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Northeast; Heavy Rain Returns to California

An Alberta clipper will bring lake effect snow downwind of the Great Lakes, with the highest snow totals downwind of Lakes Erie and Ontario. Snow squalls may impact New Year's Eve travel during the evening and overnight hours across parts of the Great Lakes, Ohio Valley, and Northeast. Heavy rain will bring a flash flooding threat for southern California on New Year's Eve into New Year's Day. Read More >

Hazardous Weather Conditions

Current conditions at

Vance Brand Airport (KLMO)

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

Fair

24°F

-4°C

Humidity 75%
Wind Speed SW 3 mph
Barometer 30.23 in
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 31 Dec 1:35 am MST
Extended Forecast for

Longmont CO

  • Overnight

    Overnight: Mostly clear, with a low around 24. West northwest wind 3 to 5 mph.

    Low: 24 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 58. West wind around 6 mph becoming calm  in the morning.

    High: 58 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 32. West wind 3 to 5 mph.

    Low: 32 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: Cloudy, with a high near 57. West wind around 5 mph.

    High: 57 °F

    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 34. Light west southwest wind.

    Low: 34 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 58.

    High: 58 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 32.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 24. West northwest wind 3 to 5 mph.
Wednesday
Sunny, with a high near 58. West wind around 6 mph becoming calm in the morning.
Wednesday Night
Mostly cloudy, with a low around 32. West wind 3 to 5 mph.
New Year's Day
Cloudy, with a high near 57. West wind around 5 mph.
Thursday Night
Mostly cloudy, with a low around 34. Light west southwest wind.
Friday
Mostly sunny, with a high near 58.
Friday Night
Partly cloudy, with a low around 33.
Saturday
Mostly sunny, with a high near 61.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Mostly sunny, with a high near 58.
Sunday Night
Partly cloudy, with a low around 29.
Monday
Mostly sunny, with a high near 55.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Mostly sunny, with a high near 53.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Longmont CO
 40.16°N 105.12°W (Elev. 5000 ft)
5:40 pm MST Dec 30, 2025
1am MST Dec 31, 2025-6pm MST Jan 6, 2026
 
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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