Alamosa & San Luis Valley, CO

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San Luis Creek

Today’s Forecast:

☀
57°F
High: 59° | Low: 36°
Current Temperature
Clear
Station: KALS
Observed at: 8:35 pm CDT on 9/26/26
Wind: 3 mph | Humidity: 59%

Tonight:Partly cloudy, with a low around 36. Southeast wind around 5 mph.
Sunday:Areas of fog between 7am and 8am. Partly sunny, with a high near 74. South wind 0 to 10 mph.
Sunday Night:Mostly cloudy, with a low around 42. South wind 5 to 10 mph.

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Today’s Report:

🚲 Biking

Excellent
  100 /100

Excellent for biking. High near 74°F. Low rain risk (2%). Light wind (10 mph).

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Not Recommended 14/100
Not Recommended for biking. High near 64°F. High rain probability (60%). Breezy winds (15 mph). Thunderstorms forecast or possible.

🎪 Outdoor Events / Activities

Excellent
  100 /100

Excellent for outdoor events / activities. High near 74°F. Low rain risk (2%). Light wind (10 mph).

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Not Recommended 14/100
Not Recommended for outdoor events / activities. High near 64°F. High rain probability (60%). Breezy winds (15 mph). Thunderstorms forecast or possible.

🥾 Hiking

Excellent
  100 /100

Excellent for hiking. High near 74°F. Low rain risk (2%). Light wind (10 mph).

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Not Recommended 15/100
Not Recommended for hiking. High near 64°F. High rain probability (60%). Light wind (15 mph). Thunderstorms forecast or possible.

About Alamosa & San Luis Valley

Alamosa & San Luis Valley is a broad valley planning page for Rio Grande paths, wildlife-area stops, small-town events, open-road rides, and outdoor days between the Sangre de Cristo and San Juan ranges.

Make the Most of a Alamosa & San Luis Valley Day

Use wind, sun, storms, smoke, and long driving distances to decide between valley paths, wildlife-area visits, town events, or mountain-adjacent day trips.

Weather Tips for Alamosa & San Luis Valley

  • Valley wind, intense sun, cold mornings, afternoon storms, smoke, dust, hail, and long open-road travel can all affect San Luis Valley plans.
  • If thunder is possible, finish exposed ridges, open trails, lakes, and long bike routes early.
  • For biking, watch wind, heat, trail exposure, and whether recent rain has left dirt, clay, or rock surfaces slick.
  • Smoke, dust, fire restrictions, and sudden storm cells can change outdoor plans during dry or windy stretches.

Nearby Towns and Areas

This page is meant to cover a roughly 25-mile outdoor-planning area around Alamosa & San Luis Valley, including Alamosa, Rio Grande corridor paths, nearby wildlife areas, San Luis Valley towns, and open valley routes not centered on the dunes. It can also be useful when planning outdoor time near:

  • Alamosa
  • Rio Grande
  • Monte Vista
  • San Luis Lakes
  • La Jara
  • Conejos
  • Del Norte
  • Monte Vista National Wildlife Refuge

Plan Around the Conditions

Use the forecast to choose the best version of Alamosa & San Luis Valley rather than forcing one itinerary. Match elevation, heat, wind, storm timing, water conditions, trail surfaces, road conditions, fire restrictions, and seasonal closures to the activity that gives your group the most comfortable day.

7-Day Forecast for Alamosa & San Luis Valley

☀
57°F
High: 59° | Low: 36°
Current Temperature
Clear
Station: KALS
Observed at: 8:35 pm CDT on 9/26/26
Wind: 3 mph | Humidity: 59%
Sun 🌫
74° 42°
2%
Mon ⛈
64° 42°
60%
Tue ⛈
62° 37°
76%
Wed ⛈
60° 35°
57%
Thu 🌧
63° 34°
15%
Fri ☀
66° 35°
0%
Sat ☀
68° --°
2%

7-Day High Temperature Trend

74° Sun 64° Mon 62° Tue 60° Wed 63° Thu 66° Fri 68° Sat

7-Day Low Temperature Trend

42° Sun 42° Mon 37° Tue 35° Wed 34° Thu 35° Fri 50° Sat

📊 7-Day Outdoor Outlook

Good Fair Poor 100 Sun 21 Mon 21 Tue 21 Wed 100 Thu 100 Fri 100 Sat
Forecast data from the National Weather Service  |  Last Updated: September 26, 2026 10:23 pm CDT