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

Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two 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

73°F

23°C

Humidity 30%
Wind Speed S 6 mph
Barometer 30.37 in (1020.6 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Last update 26 Aug 6:52 pm MDT
Extended Forecast for

Alamosa CO

  • Tonight

    Tonight: Partly cloudy, with a low around 46. Southwest wind 5 to 10 mph becoming east southeast in the evening.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Light and variable wind becoming west 5 to 10 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms between 7pm and 8pm. Partly cloudy, with a low around 49. West wind 5 to 10 mph becoming east after midnight. Chance of precipitation is 10%.

    Low: 49 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 87. South southwest wind 5 to 15 mph becoming east in the morning.

    High: 87 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 51. West northwest wind 5 to 15 mph becoming south southeast after midnight.

    Low: 51 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87. South wind 5 to 15 mph becoming west in the afternoon.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 52. West southwest wind around 10 mph becoming south after midnight. Chance of precipitation is 30%.

    Low: 52 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 82. South southwest wind 5 to 15 mph.

    High: 82 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 50. South wind 5 to 10 mph.

    Low: 50 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 46. Southwest wind 5 to 10 mph becoming east southeast in the evening.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Light and variable wind becoming west 5 to 10 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A slight chance of showers and thunderstorms between 7pm and 8pm. Partly cloudy, with a low around 49. West wind 5 to 10 mph becoming east after midnight. Chance of precipitation is 10%.
Friday
Mostly sunny, with a high near 87. South southwest wind 5 to 15 mph becoming east in the morning.
Friday Night
Partly cloudy, with a low around 51. West northwest wind 5 to 15 mph becoming south southeast after midnight.
Saturday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87. South wind 5 to 15 mph becoming west in the afternoon.
Saturday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 52. West southwest wind around 10 mph becoming south after midnight. Chance of precipitation is 30%.
Sunday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 82. South southwest wind 5 to 15 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 50. South wind 5 to 10 mph.
Monday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 79. South southwest wind 5 to 10 mph.
Monday Night
Mostly cloudy, with a low around 47. Southwest wind 5 to 10 mph.
Tuesday
Sunny, with a high near 82. South wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 48. Southwest wind 5 to 15 mph.
Wednesday
Sunny, with a high near 84. 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:
7:11 pm MDT Aug 26, 2026
Forecast Valid:
7pm MDT Aug 26, 2026-6pm MDT Sep 2, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation