Skip to content

Checked

San Acacio, CO 81138 Weather

Today: Mostly Cloudy, high 59°F, low 38°F. Hourly and 7-day forecast from the National Weather Service. Times are local (MDT).

San Acacio, CO 81138 current weather

56°F

Partly Sunny

Forecast for this hour. No recent report from a nearby station.

H 59° / L 38°

No recent station report. NWS hourly forecast updated 10/30/2026, 2:41 PM PT

1 active alert

From the National Weather Service for this forecast zone or county

State alerts

Severe1Significant threat to life or property

Hourly forecast

NWS, updated 10/30/2026, 2:41 PM PT

  1. Now56°
  2. 5 PM54°
  3. 6 PM51°
  4. 7 PM49°
  5. 8 PM47°
  6. 9 PM46°
  7. 10 PM44°
  8. 11 PM44°
  9. 12 AM42°Sat
  10. 1 AM42°11%
  11. 2 AM41°22%
  12. 3 AM41°32%
  13. 4 AM40°37%
  14. 5 AM40°41%
  15. 6 AM40°21%
  16. 7 AM38°12%
  17. 8 AM40°18%
  18. 9 AM43°20%
  19. 10 AM49°14%
  20. 11 AM52°
  21. 12 PM54°
  22. 1 PM55°
  23. 2 PM57°
  24. 3 PM55°
  25. 4 PM55°
  26. 5 PM55°
  27. 6 PM51°
  28. 7 PM46°
  29. 8 PM44°
  30. 9 PM43°
  31. 10 PM41°
  32. 11 PM41°
  33. 12 AM39°Sun
  34. 1 AM38°
  35. 1 AM38°
  36. 2 AM35°
  37. 3 AM36°
  38. 4 AM36°11%
  39. 5 AM34°39%
  40. 6 AM35°39%
  41. 7 AM38°39%
  42. 8 AM41°39%
  43. 9 AM44°39%
  44. 10 AM48°39%
  45. 11 AM51°71%
  46. 12 PM52°71%
  47. 1 PM52°71%
  48. 2 PM53°71%

7-day forecast

Tap a day for details

  • Today10/3041% chance of precipitationLow 38°High 59°

    This Afternoon: Mostly cloudy, with a high near 59. South wind around 5 mph.

    Tonight: A chance of rain showers after 2am. Mostly cloudy, with a low around 38. South wind 5 to 15 mph. Chance of precipitation is 40%.

    Mostly Cloudy
  • Sat10/3139% chance of precipitationLow 33°High 57°

    Saturday: A slight chance of showers and thunderstorms before 11am. Partly sunny, with a high near 57. South southwest wind 10 to 20 mph. Chance of precipitation is 20%.

    Saturday Night: A chance of rain showers after 5am. Mostly cloudy, with a low around 33. South wind 5 to 15 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

    Slight Chance Showers And Thunderstorms then Partly Sunny
  • Sun11/198% chance of precipitationLow 37°High 54°

    Sunday: Rain showers likely before 2pm, then showers and thunderstorms. Mostly cloudy, with a high near 54. South wind 5 to 30 mph, with gusts as high as 55 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Sunday Night: Showers and thunderstorms before 5am, then a slight chance of thunderstorms and a chance of rain and snow showers. Mostly cloudy, with a low around 37. South southwest wind 20 to 35 mph, with gusts as high as 60 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Showers And Thunderstorms
  • Mon11/268% chance of precipitationLow 26°High 50°

    Monday: A slight chance of thunderstorms and rain and snow showers likely. Partly sunny, with a high near 50. West wind 10 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 70%.

    Monday Night: A slight chance of rain showers before 11pm. Partly cloudy, with a low around 26. North wind 0 to 10 mph. Chance of precipitation is 20%.

    Slight Chance T-storms
  • Tue11/3Low 26°High 53°

    Tuesday: Sunny, with a high near 53. Northeast wind 5 to 10 mph.

    Tuesday Night: Mostly clear, with a low around 26. East wind around 5 mph.

    Sunny
  • Wed11/4Low 27°High 55°

    Wednesday: Mostly sunny, with a high near 55. West southwest wind 5 to 10 mph.

    Wednesday Night: Partly cloudy, with a low around 27. South wind 5 to 10 mph.

    Mostly Sunny
  • Thu11/5Low 26°High 54°

    Thursday: Mostly sunny, with a high near 54. South southwest wind 5 to 15 mph.

    Thursday Night: Partly cloudy, with a low around 26. South wind 5 to 15 mph.

    Mostly Sunny

Forecast for 37.018, -105.628 from the NWS PUB office, updated 10/30/2026, 2:41 PM PT · Official forecast on weather.gov

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now56°Partly Sunny3%5 mph
  2. 5 PM54°Mostly Cloudy6%5 mph
  3. 6 PM51°Mostly Cloudy5%5 mph
  4. 7 PM49°Mostly Cloudy4%5 mph
  5. 8 PM47°Mostly Cloudy3%5 mph
  6. 9 PM46°Mostly Cloudy3%10 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the high temperature today in San Acacio, CO 81138?
The National Weather Service forecast for this afternoon calls for a high near 59°F. Mostly Cloudy.
Will it rain in San Acacio, CO 81138 in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What time is sunrise and sunset in San Acacio, CO 81138 today?
Sunrise is about 7:24 AM MDT and sunset is about 6:07 PM MDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in San Acacio, CO 81138?
At San Luis 1 S, the 1991 to 2020 normal high in October is 63°F and the normal low is 28°F.

Rain and snow totals

Next 3 days, NWS forecast grid

Rain (liquid)
0.56 in
Snow
0.00 in
Ice
0.00 in

Nearby hazards

Colorado hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:General thunderstormsOutlook map
  • Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
  • River gauges within 40 miles at or above flood stage:
    • Major flooding (forecast)Conejos River near Mogote31 mi
  • Active wildfires within 50 miles: None reported

UV and air quality forecast

EPA and AirNow

AQI forecast today (San Luis Valley)
GoodPM2.5
AQI forecast tomorrow (San Luis Valley)
GoodPM2.5

UV index guide · Air quality

Drought

By county

Costilla County, week of 10/27/2026

92% of the county is in moderate drought or worse.

Sun and moon

Local time, center of the area

Sunrise
7:24 AM
Sunset
6:07 PM
Daylight
10 hr 42 min
Moon
Waning Gibbous 76% lit
First light (civil dawn)
6:58 AM
Last light (civil dusk)
6:34 PM
Moonrise
9:57 PM
Moonset
12:34 PM

Normal October weather

Climate

Normal October high 63°, low 28°, precipitation 0.94 in for the month. 1991 to 2020 normals at San Luis 1 S, 17 mi away.

Other places nearby

Data sources

See something wrong? Request a correction

About this data

Weather and emergencies: Weather, air quality and hazard information on this page is delayed and may be incomplete. It is not a substitute for official warnings. Always follow the National Weather Service, local emergency management and public safety officials. In an emergency, call 911. For evacuation orders, use your local official alert system.

Forecasts, observations and alerts come from the National Weather Service (api.weather.gov). Data can be delayed by minutes to hours, and an observation station may be miles from the place named on this page. This site is not affiliated with NOAA or the National Weather Service.

DatenUS is a private website and is not affiliated with or endorsed by any government agency. We republish public data from the sources listed on this page. Data can be incomplete, delayed or wrong. Always check the original source before you make a decision.

Our servers read this data automatically from government sources. Errors can come from the source itself or from the way we read, process or display it, and we do not guarantee that it is accurate, complete or current. Verify anything important with the official source.

Report an errorRead the full disclaimer