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

59°F

15°C

Humidity 41%
Wind Speed SW 7 mph
Barometer 30.26 in (1015.9 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 2 Sep 9:52 pm MDT
Extended Forecast for

Alamosa CO

  • Tonight

    Tonight: Mostly clear, with a low around 44. South wind 5 to 10 mph.

    Low: 44 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84. Breezy, with a southeast wind 5 to 10 mph becoming southwest 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 84 °F

    Sunny then
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 47. Breezy, with a south southwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.

    Low: 47 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 83. South southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon.

    High: 83 °F

    Mostly Sunny

  • Friday Night

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

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: A 10 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. West southwest wind 5 to 10 mph becoming northeast in the afternoon.

    High: 84 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 51. South wind 5 to 10 mph.

    Low: 51 °F

    Slight Chance
    T-storms then
    Mostly 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 in the afternoon.

    High: 84 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 52. South wind around 15 mph.

    Low: 52 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 44. South wind 5 to 10 mph.
Thursday
Sunny, with a high near 84. Breezy, with a southeast wind 5 to 10 mph becoming southwest 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Thursday Night
Increasing clouds, with a low around 47. Breezy, with a south southwest wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
Friday
Mostly sunny, with a high near 83. South southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 48. South wind 10 to 15 mph decreasing to 5 to 10 mph after midnight.
Saturday
A 10 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. West southwest wind 5 to 10 mph becoming northeast in the afternoon.
Saturday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 51. South 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 in the afternoon.
Sunday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 52. South wind around 15 mph.
Labor Day
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. South wind 10 to 15 mph.
Monday Night
Partly cloudy, with a low around 48. South wind 10 to 15 mph.
Tuesday
A chance of showers and thunderstorms. Sunny, with a high near 83. South wind 5 to 10 mph.
Tuesday Night
A chance of showers. 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 82. South southeast 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:
8:46 pm MDT Sep 2, 2026
Forecast Valid:
10pm MDT Sep 2, 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