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

70°F

21°C

Humidity 14%
Wind Speed NW 5 mph
Barometer 30.31 in (1016.8 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 12 May 8:52 pm MDT
Extended Forecast for

Alamosa CO

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 43. East southeast wind 5 to 10 mph becoming light and variable after midnight.

    Low: 43 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Increasing clouds, with a high near 82. Breezy, with a light and variable wind becoming southwest 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 82 °F

    Sunny then
    Increasing
    Clouds and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 45. Breezy, with a southwest wind 15 to 20 mph becoming south southwest 5 to 10 mph after midnight. Winds could gust as high as 35 mph.

    Low: 45 °F

    Mostly Cloudy
    and Breezy

  • Thursday

    Thursday: Sunny, with a high near 79. South wind 5 to 10 mph becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 39. West wind 10 to 15 mph becoming light west southwest after midnight.

    Low: 39 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79. Light and variable wind becoming west 10 to 15 mph in the afternoon.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 40. West wind 5 to 15 mph becoming south southwest after midnight.

    Low: 40 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 79. Breezy, with a south southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 79 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41. Breezy, with a south southwest wind 10 to 20 mph.

    Low: 41 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 43. East southeast wind 5 to 10 mph becoming light and variable after midnight.
Wednesday
Increasing clouds, with a high near 82. Breezy, with a light and variable wind becoming southwest 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.
Wednesday Night
Mostly cloudy, with a low around 45. Breezy, with a southwest wind 15 to 20 mph becoming south southwest 5 to 10 mph after midnight. Winds could gust as high as 35 mph.
Thursday
Sunny, with a high near 79. South wind 5 to 10 mph becoming west 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.
Thursday Night
Mostly clear, with a low around 39. West wind 10 to 15 mph becoming light west southwest after midnight.
Friday
Sunny, with a high near 79. Light and variable wind becoming west 10 to 15 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 40. West wind 5 to 15 mph becoming south southwest after midnight.
Saturday
Sunny, with a high near 79. Breezy, with a south southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Saturday Night
Mostly clear, with a low around 41. Breezy, with a south southwest wind 10 to 20 mph.
Sunday
Sunny, with a high near 76. Windy, with a south southwest wind 10 to 20 mph increasing to 20 to 30 mph in the afternoon. Winds could gust as high as 45 mph.
Sunday Night
Partly cloudy, with a low around 38. Breezy, with a south southwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 40 mph.
Monday
Sunny, with a high near 72. Breezy, with a south wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph.
Monday Night
Partly cloudy, with a low around 33. West southwest wind 10 to 15 mph becoming east southeast after midnight. Winds could gust as high as 30 mph.
Tuesday
Sunny, with a high near 73. South 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:
6:36 pm MDT May 12, 2026
Forecast Valid:
9pm MDT May 12, 2026-6pm MDT May 19, 2026
 
Forecast Discussion
 
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Additional Resources

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