Alamosa, CO Weather Forecast
Alamosa County, Colorado
Seven-day outlook
27–58°F across the weekThe week runs between 27° and 58°, with today the warmest day of it. The second half leans cooling, and Monday is the coolest day in it. Sunday is the wettest day, peaking near 65%. 5 of the 7 days stay dry.
Forecasts come from the National Weather Service's own computer models, and current conditions from the nearest reporting weather station. Both are served through the weather API. A forecast is guidance, not a warning, and anything the Weather Service has actually issued is on the live map.
The written summaries on this page are generated from the forecast data above, not by a meteorologist. Each sentence is a reading of the same numbers you can see, and no forecaster has reviewed them.
About the Alamosa forecast
Alamosa sits at 37.4745°N, 105.8770°W in Alamosa County, Colorado. The forecast above is drawn for that point from the National Weather Service's own computer models: a seven-day outlook, and a finer-grained one covering the next eighteen hours where it reaches, and the radar and alert panels show what the Weather Service has out over the area right now.
- County
- Alamosa County
- Coordinates
- 37.4745°N, 105.8770°W
- Population
- 9,883 · 2023 estimate
- Land area
- 7.965 sq mi
Place data from the US Census Bureau. Coordinates are the Census internal point for Alamosa, and the forecast is for that location, not for every address inside the city limits, and a large city can have real weather differences from one side to the other.
How well can the network see Alamosa?
The nearest Doppler radar is KPUX (Pueblo, CO), 115 miles to the NE. A WSR-88D's lowest routine scan sits half a degree above horizontal, and the earth curves away beneath it, so by the time that beam reaches Alamosa its center is about 11,900 ft above ground. At that range the beam overshoots the layer where severe weather organizes. The radar is describing the middle of the storm, not its base , which is why a warning for Alamosa can look unsupported on the mosaic and still be right. Trust the warning over the picture.
The closest instrument actually measuring the air is KALS · Alamosa/Bergman Fld on the ASOS/AWOS network, 2.6 miles away. Close enough that its readings are, for practical purposes, the conditions in town.
Beam height is the standard 4/3-earth approximation for the 0.5° scan and assumes normal refraction; it is where the center of the beam is, not its edges, and unusual temperature profiles bend it. Radar siting from the NWS WSR-88D network, station positions from the Colorado observing network as of this build.
Forecasts near Alamosa
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- Walsenburg, CO61 mi
- Salida, CO73 mi
- Florence, CO76 mi
- Cañon City, CO76 mi
- Taos, NM77 mi
- Trinidad, CO79 mi
- Pueblo, CO88 mi
Elsewhere in Colorado
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