Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

San Luis Valley Regional Airport (KALS)

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

Fair

81°F

27°C

Humidity 18%
Wind Speed E 5 mph
Barometer 30.24 in (1015.0 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 17 Aug 5:52 pm MDT
Extended Forecast for

6 Miles SSW Alamosa CO

  • Tonight

    Tonight: Partly cloudy, with a low around 41. West wind around 5 mph becoming calm  after midnight.

    Low: 41 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 85. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 46. West southwest wind 5 to 10 mph becoming east after midnight.

    Low: 46 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon.  Sunny, with a high near 85. Light and variable wind becoming east 5 to 10 mph in the afternoon.

    High: 85 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 10 percent chance of showers and thunderstorms before 9pm.  Mostly clear, with a low around 49. East southeast wind 5 to 10 mph becoming west after midnight.

    Low: 49 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85. Light and variable wind becoming east 5 to 10 mph in the afternoon.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49. East southeast wind around 10 mph.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87. Light and variable wind becoming northeast 5 to 10 mph in the afternoon.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48. East wind 5 to 10 mph becoming south after midnight.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 41. West wind around 5 mph becoming calm after midnight.
Monday
Sunny, with a high near 85. Calm wind becoming west southwest around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 46. West southwest wind 5 to 10 mph becoming east after midnight.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 85. Light and variable wind becoming east 5 to 10 mph in the afternoon.
Tuesday Night
A 10 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 49. East southeast wind 5 to 10 mph becoming west after midnight.
Wednesday
Sunny, with a high near 85. Light and variable wind becoming east 5 to 10 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 49. East southeast wind around 10 mph.
Thursday
Sunny, with a high near 87. Light and variable wind becoming northeast 5 to 10 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 48. East wind 5 to 10 mph becoming south after midnight.
Friday
A 30 percent chance of showers and thunderstorms after noon. Sunny, with a high near 85. Northwest wind around 5 mph becoming east southeast in the afternoon.
Friday Night
A chance of showers. Mostly cloudy, with a low around 50. West northwest wind 5 to 10 mph becoming northeast after midnight.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 81. West northwest wind around 5 mph becoming east southeast in the afternoon.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 49. South southeast wind 5 to 10 mph.
Sunday
Showers and thunderstorms likely. Partly sunny, with a high near 77. Calm wind becoming south around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SSW Alamosa CO
 37.38°N 105.9°W (Elev. 7497 ft)
5:52 pm MDT Aug 17, 2025
6pm MDT Aug 17, 2025-6pm MDT Aug 24, 2025
 
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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