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

San Luis Valley Regional Airport (KALS)

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

Fair

47°F

8°C

Humidity 77%
Wind Speed S 3 mph
Barometer 30.27 in (1016.5 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 3 Sep 6:52 am MDT
Extended Forecast for

Alamosa CO

  • Today

    Today: Sunny, with a high near 84. Breezy, with a south southeast wind 5 to 10 mph becoming southwest 15 to 20 mph in the afternoon.

    High: 84 °F

    Sunny then
    Sunny and
    Breezy

  • Tonight

    Tonight: Increasing clouds, with a low around 50. South wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.

    Low: 50 °F

    Increasing
    Clouds

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 83. South southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48. South southwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight.

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83. Light and variable wind becoming south southwest 5 to 10 mph in the afternoon.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50. South southwest wind 5 to 10 mph.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. West wind 5 to 10 mph becoming south southwest 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 84 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 51. South wind around 15 mph. Chance of precipitation is 30%.

    Low: 51 °F

    Chance
    Showers

  • Labor Day

    Labor Day: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83. South wind 10 to 15 mph.

    High: 83 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 84. Breezy, with a south southeast wind 5 to 10 mph becoming southwest 15 to 20 mph in the afternoon.
Tonight
Increasing clouds, with a low around 50. South wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
Friday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 83. South southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Partly cloudy, with a low around 48. South southwest wind 10 to 15 mph decreasing to 5 to 10 mph after midnight.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83. Light and variable wind becoming south southwest 5 to 10 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 50. South southwest wind 5 to 10 mph.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. West wind 5 to 10 mph becoming south southwest 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 51. South wind around 15 mph. Chance of precipitation is 30%.
Labor Day
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83. South wind 10 to 15 mph.
Monday Night
A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 49. South wind 10 to 15 mph.
Tuesday
A chance of showers and thunderstorms. Sunny, with a high near 83. South southwest wind 5 to 10 mph.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 48. South wind 5 to 10 mph.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 81. South southwest wind 5 to 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Alamosa CO
 37.47°N 105.88°W (Elev. 7497 ft)
Last Update:
6:56 am MDT Sep 3, 2026
Forecast Valid:
7am MDT Sep 3, 2026-6pm MDT Sep 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation