Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Hazardous Weather Conditions

Current conditions at

San Luis Valley Regional Airport (KALS)

Lat: 37.44°NLon: 105.86°WElev: 7536ft.

Mostly Cloudy

31°F

-1°C

Humidity 72%
Wind Speed W 12 mph
Barometer 29.90 in (1009.2 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 28 Dec 1:52 am MST
Extended Forecast for

2 Miles S Alamosa CO

  • Overnight

    Overnight: A 20 percent chance of snow showers before 4am.  Partly cloudy, with a low around 19. Southwest wind 5 to 10 mph becoming northwest.

    Low: 19 °F

    Slight Chance
    Snow Showers

  • Sunday

    Sunday: Sunny, with a high near 40. Breezy, with a north wind 5 to 10 mph increasing to 15 to 20 mph in the morning.

    High: 40 °F

    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 0. North northeast wind around 5 mph becoming calm  in the evening.

    Low: 0 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 38. Wind chill values between zero and 10. Calm wind.

    High: 38 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 1. Calm wind.

    Low: 1 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 42. Calm wind.

    High: 42 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 4. Calm wind.

    Low: 4 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 46. Calm wind.

    High: 46 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 8. Calm wind.

    Low: 8 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of snow showers before 4am. Partly cloudy, with a low around 19. Southwest wind 5 to 10 mph becoming northwest.
Sunday
Sunny, with a high near 40. Breezy, with a north wind 5 to 10 mph increasing to 15 to 20 mph in the morning.
Sunday Night
Mostly clear, with a low around 0. North northeast wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 38. Wind chill values between zero and 10. Calm wind.
Monday Night
Mostly clear, with a low around 1. Calm wind.
Tuesday
Sunny, with a high near 42. Calm wind.
Tuesday Night
Mostly clear, with a low around 4. Calm wind.
Wednesday
Sunny, with a high near 46. Calm wind.
Wednesday Night
Partly cloudy, with a low around 8. Calm wind.
New Year's Day
Mostly sunny, with a high near 48. Calm wind.
Thursday Night
Mostly cloudy, with a low around 15. South wind around 5 mph.
Friday
Mostly sunny, with a high near 49. South southwest wind around 5 mph.
Friday Night
Partly cloudy, with a low around 14. South wind around 5 mph.
Saturday
Mostly sunny, with a high near 47. South wind 5 to 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Alamosa CO
 37.43°N 105.87°W (Elev. 7497 ft)
1:51 am MST Dec 28, 2025
2am MST Dec 28, 2025-6pm MST Jan 3, 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