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

Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Hazardous Weather Conditions

Current conditions at

San Luis Valley Regional Airport (KALS)

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

Fair

36°F

2°C

Humidity 62%
Wind Speed S 9 mph
Barometer 30.08 in (1019.1 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 26 Dec 5:52 pm MST
Extended Forecast for

Alamosa CO

  • Tonight

    Tonight: Partly cloudy, with a low around 28. South wind 10 to 15 mph.

    Low: 28 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of rain and snow showers before 3pm, then a slight chance of rain showers between 3pm and 4pm, then a slight chance of rain and snow showers after 4pm. Mostly sunny, with a high near 50. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.

    High: 50 °F

    Slight Chance
    Rain/Snow and
    Breezy

  • Saturday Night

    Saturday Night: A 30 percent chance of snow showers, mainly after 11pm. Partly cloudy, with a low around 18. South southwest wind 10 to 15 mph.

    Low: 18 °F

    Chance Snow
    Showers

  • Sunday

    Sunday: A 40 percent chance of snow showers. Mostly sunny, with a high near 37. South southwest wind 10 to 15 mph becoming north in the afternoon.

    High: 37 °F

    Chance Snow
    Showers

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 2. North wind 5 to 10 mph becoming light north northeast after midnight.

    Low: 2 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 36. Calm wind.

    High: 36 °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 41. Calm wind.

    High: 41 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 6. Calm wind.

    Low: 6 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 28. South wind 10 to 15 mph.
Saturday
A slight chance of rain and snow showers before 3pm, then a slight chance of rain showers between 3pm and 4pm, then a slight chance of rain and snow showers after 4pm. Mostly sunny, with a high near 50. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 20%.
Saturday Night
A 30 percent chance of snow showers, mainly after 11pm. Partly cloudy, with a low around 18. South southwest wind 10 to 15 mph.
Sunday
A 40 percent chance of snow showers. Mostly sunny, with a high near 37. South southwest wind 10 to 15 mph becoming north in the afternoon.
Sunday Night
Mostly clear, with a low around 2. North wind 5 to 10 mph becoming light north northeast after midnight.
Monday
Sunny, with a high near 36. Calm wind.
Monday Night
Mostly clear, with a low around 1. Calm wind.
Tuesday
Sunny, with a high near 41. Calm wind.
Tuesday Night
Mostly clear, with a low around 6. Calm wind.
Wednesday
Mostly sunny, with a high near 45. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 11. Calm wind becoming west southwest around 5 mph.
New Year's Day
Partly sunny, with a high near 46. South wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 17. South wind around 5 mph.
Friday
Partly sunny, with a high near 48. South southwest wind 5 to 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Alamosa CO
 37.47°N 105.88°W (Elev. 7497 ft)
Last Update:
4:56 pm MST Dec 26, 2025
Forecast Valid:
6pm MST Dec 26, 2025-6pm MST Jan 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation