Rio Grande at Alamosa
0.5 mi- Level
- 3.2 ft
- Flow
- 257 cfs
Forecast peak 7.2 ft Tue 12 AM, action stage
Reading from Fri 7:30 AM · NWS gauge page
Appearance
Observed 8:30 AM MDT at KALS
Mostly sunny and 48°9°.
Today: low 37°3° (likely 37°3° to 47°8°), high 63°17° (likely 59°15° to 63°17°).
Now 48°9°
Mostly sunny
Light rain now, through the next 2 hours.
From forecast models
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Fri 8a | Drizzle | 49°9° (likely 45°7° to 49°9°) | 45°7° | 20%, 0.01 in0.3 mm | 10 mph16 km/h from S, gusts 13 mph21 km/h | 86% | 34% | 0 |
| Fri 9a | Mostly sunny | 53°12° (likely 48°9° to 53°12°) | 53°12° | 20%, 0.01 in0.3 mm | 15 mph24 km/h from S, gusts 17 mph27 km/h | 77% | 19% | 1 |
| Fri 10a | Sunny | 56°13° (likely 51°11° to 56°13°) | 56°13° | 30%, 0.01 in0.3 mm | 15 mph24 km/h from S, gusts 21 mph34 km/h | 69% | 10% | 2 |
| Fri 11a | Sunny | 59°15° (likely 55°13° to 59°15°) | 59°15° | 30%, 0.01 in0.3 mm | 20 mph32 km/h from SSW, gusts 24 mph38 km/h | 60% | 18% | 3 |
| Fri 12p | Sunny | 61°16° (likely 57°14° to 61°16°) | 61°16° | 30% | 20 mph32 km/h from SSW, gusts 28 mph45 km/h | 53% | 15% | 5 |
| Fri 1p | Sunny | 62°17° (likely 58°14° to 62°17°) | 62°17° | 30% | 25 mph40 km/h from SSW, gusts 29 mph47 km/h | 48% | 14% | 5 |
| Fri 2p | Sunny | 63°17° (likely 59°15° to 63°17°) | 63°17° | 30% | 20 mph32 km/h from SSW, gusts 28 mph45 km/h | 43% | 23% | 5 |
| Fri 3p | Mostly sunny | 63°17° (likely 58°14° to 63°17°) | 63°17° | 30% | 20 mph32 km/h from SSW, gusts 27 mph43 km/h | 41% | 29% | 3 |
| Fri 4p | Cloudy | 62°17° (likely 58°14° to 62°17°) | 62°17° | 30% | 20 mph32 km/h from SSW, gusts 27 mph44 km/h | 43% | 59% | 1 |
| Fri 5p | Drizzle | 60°16° (likely 50°10° to 60°16°) | 60°16° | 20% | 15 mph24 km/h from SSW, gusts 28 mph45 km/h | 47% | 50% | 1 |
| Fri 6p | Showers | 55°13° (likely 49°9° to 55°13°) | 55°13° | 20% | 15 mph24 km/h from SSW, gusts 16 mph26 km/h | 57% | 84% | 1 |
| Fri 7p | Showers | 51°11° (likely 46°8° to 52°11°) | 51°11° | 20% | 10 mph16 km/h from SSW, gusts 8 mph13 km/h | 68% | 67% | 0 |
| Fri 8p | Cloudy | 47°8° (likely 45°7° to 50°10°) | 43°6° | 20% | 10 mph16 km/h from S, gusts 5 mph9 km/h | 79% | 79% | 0 |
| Fri 9p | Cloudy | 46°8° (likely 46°8° to 48°9°) | 42°6° | 20% | 10 mph16 km/h from SSE, gusts 12 mph20 km/h | 83% | 93% | 0 |
| Fri 10p | Cloudy | 45°7° (likely 44°7° to 48°9°) | 41°5° | 30% | 5 mph8 km/h from SSE, gusts 11 mph17 km/h | 86% | 96% | 0 |
| Fri 11p | Showers | 44°7° (likely 42°6° to 47°8°) | 40°4° | 30% | 5 mph8 km/h from SSE, gusts 10 mph15 km/h | 89% | 72% | 0 |
| Sat 12a | Cloudy | 41°5° (likely 41°5° to 47°8°) | 36°2° | 30% | 5 mph8 km/h from SSE, gusts 9 mph15 km/h | 100% | 90% | 0 |
| Sat 1a | Cloudy | 41°5° (likely 41°5° to 46°8°) | 36°2° | 30% | 5 mph8 km/h from SSE, gusts 7 mph11 km/h | 100% | 76% | 0 |
| Sat 2a | Cloudy | 40°4° (likely 40°4° to 46°8°) | 36°2° | 30% | 5 mph8 km/h from SSE, gusts 8 mph12 km/h | 100% | 77% | 0 |
| Sat 3a | Showers | 39°4° (likely 39°4° to 46°8°) | 36°2° | 30% | 5 mph8 km/h from SSE, gusts 8 mph12 km/h | 100% | 70% | 0 |
| Sat 4a | Showers | 39°4° (likely 39°4° to 46°8°) | 37°3° | 30% | 5 mph8 km/h from S, gusts 7 mph11 km/h | 100% | 89% | 0 |
| Sat 5a | Cloudy | 38°3° (likely 38°3° to 45°7°) | 38°3° | 30% | 0 mph0 km/h, gusts 7 mph11 km/h | 100% | 81% | 0 |
| Sat 6a | Cloudy | 38°3° (likely 38°3° to 45°7°) | 38°3° | 30%, 0.02 in0.5 mm | 0 mph0 km/h, gusts 4 mph6 km/h | 100% | 91% | 0 |
| Sat 7a | Cloudy | 37°3° (likely 37°3° to 44°7°) | 37°3° | 30%, 0.02 in0.5 mm | 0 mph0 km/h, gusts 3 mph5 km/h | 100% | 98% | 0 |
| Sat 8a | Cloudy | 40°4° (likely 40°4° to 44°7°) | 40°4° | 30%, 0.02 in0.5 mm | 0 mph0 km/h, gusts 3 mph5 km/h | 100% | 96% | 0 |
| Sat 9a | Cloudy | 46°8° (likely 44°7° to 46°8°) | 46°8° | 50%, 0.02 in0.5 mm | 0 mph0 km/h, gusts 7 mph11 km/h | 86% | 98% | 1 |
| Sat 10a | Cloudy | 51°11° (likely 47°8° to 51°11°) | 51°11° | 50%, 0.02 in0.5 mm | 5 mph8 km/h from WSW, gusts 12 mph19 km/h | 71% | 99% | 1 |
| Sat 11a | Cloudy | 54°12° (likely 48°9° to 54°12°) | 54°12° | 50%, 0.02 in0.5 mm | 5 mph8 km/h from S, gusts 13 mph21 km/h | 64% | 97% | 1 |
| Sat 12p | Heavy rain | 57°14° (likely 46°8° to 57°14°) | 57°14° | 60%, 0.17 in4.3 mm | 10 mph16 km/h from SE, gusts 15 mph25 km/h | 57% | 88% | 1 |
| Sat 1p | Thunderstorms | 56°13° (likely 49°9° to 56°13°) | 56°13° | 60%, 0.17 in4.3 mm | 10 mph16 km/h from SE, gusts 15 mph24 km/h | 59% | 92% | 1 |
| Sat 2p | Thunderstorms | 56°13° (likely 48°9° to 56°13°) | 56°13° | 60%, 0.17 in4.3 mm | 10 mph16 km/h from SE, gusts 19 mph31 km/h | 57% | 97% | 1 |
| Sat 3p | Drizzle | 54°12° (likely 48°9° to 54°12°) | 54°12° | 90%, 0.17 in4.3 mm | 10 mph16 km/h from SE, gusts 19 mph31 km/h | 61% | 97% | 3 |
| Sat 4p | Cloudy | 54°12° (likely 46°8° to 54°12°) | 54°12° | 90%, 0.17 in4.3 mm | 15 mph24 km/h from SE, gusts 19 mph31 km/h | 61% | 96% | 3 |
| Sat 5p | Cloudy | 51°11° (likely 46°8° to 51°11°) | 51°11° | 90%, 0.17 in4.3 mm | 15 mph24 km/h from SE, gusts 25 mph40 km/h | 66% | 92% | 1 |
| Sat 6p | Cloudy | 47°8° (likely 43°6° to 47°8°) | 42°6° | 100%, 0.19 in4.8 mm | 10 mph16 km/h from ESE, gusts 23 mph38 km/h | 76% | 85% | 0 |
| Sat 7p | Cloudy | 44°7° (likely 41°5° to 45°7°) | 38°3° | 100%, 0.19 in4.8 mm | 10 mph16 km/h from ESE, gusts 21 mph35 km/h | 86% | 83% | 0 |
| Sat 8p | Partly cloudy | 42°6° (likely 40°4° to 44°7°) | 36°2° | 100%, 0.19 in4.8 mm | 10 mph16 km/h from E, gusts 20 mph32 km/h | 93% | 77% | 0 |
| Sat 9p | Showers | 41°5° (likely 41°5° to 44°7°) | 35°2° | 100%, 0.19 in4.8 mm | 10 mph16 km/h from E, gusts 18 mph29 km/h | 100% | 100% | 0 |
| Sat 10p | Showers | 40°4° (likely 40°4° to 43°6°) | 34°1° | 100%, 0.19 in4.8 mm | 10 mph16 km/h from E, gusts 13 mph21 km/h | 100% | 95% | 0 |
| Sat 11p | Drizzle | 39°4° (likely 39°4° to 42°6°) | 33°1° | 100%, 0.19 in4.8 mm | 10 mph16 km/h from E, gusts 10 mph16 km/h | 100% | 92% | 0 |
| Sun 12a | Showers | 38°3° (likely 38°3° to 43°6°) | 32°0° | 90%, 0.1 in2.5 mm | 10 mph16 km/h from E, gusts 14 mph22 km/h | 100% | 97% | 0 |
| Sun 1a | Showers | 37°3° (likely 37°3° to 43°6°) | 32°0° | 90%, 0.1 in2.5 mm | 5 mph8 km/h from E, gusts 13 mph21 km/h | 100% | 95% | 0 |
| Sun 2a | Showers | 36°2° (likely 36°2° to 44°7°) | 31°−1° | 90%, 0.1 in2.5 mm | 5 mph8 km/h from E, gusts 13 mph21 km/h | 100% | 80% | 0 |
| Sun 3a | Showers | 35°2° (likely 35°2° to 44°7°) | 30°−1° | 90%, 0.1 in2.5 mm | 5 mph8 km/h from E, gusts 10 mph16 km/h | 100% | 81% | 0 |
| Sun 4a | Cloudy | 34°1° (likely 34°1° to 43°6°) | 29°−2° | 90%, 0.1 in2.5 mm | 5 mph8 km/h from E, gusts 9 mph15 km/h | 100% | 82% | 0 |
| Sun 5a | Showers | 33°1° (likely 33°1° to 42°6°) | 28°−2° | 90%, 0.1 in2.5 mm | 5 mph8 km/h from E, gusts 7 mph11 km/h | 100% | 69% | 0 |
| Sun 6a | Showers | 33°1° (likely 33°1° to 42°6°) | 28°−2° | 70%, 0.01 in0.3 mm | 5 mph8 km/h from E, gusts 5 mph8 km/h | 100% | 67% | 0 |
| Sun 7a | Showers | 35°2° (likely 35°2° to 44°7°) | 32°0° | 70%, 0.01 in0.3 mm | 5 mph8 km/h from E, gusts 5 mph8 km/h | 100% | 65% | 0 |
Morning
6 AM–noon
30% chance · 0.04 in1 mm
Afternoon
noon–6 PM
30% chance
Evening
6 PM–midnight
30% chance
Overnight
midnight–6 AM
30% chance
Official NWS forecast
Today: A slight chance of showers and thunderstorms before 10am, then a chance of showers and thunderstorms between 10am and 5pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 63. South southwest wind 10 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Tonight: A chance of rain showers. Mostly cloudy, with a low around 37. South southwest wind 0 to 15 mph. Chance of precipitation is 30%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
50% chance · 0.12 in3 mm
Afternoon
noon–6 PM
90% chance · 1 in26 mm
Evening
6 PM–midnight
100% chance · 1.1 in29 mm
Overnight
midnight–6 AM
90% chance · 0.6 in15 mm
Official NWS forecast
Day: A chance of rain showers before 9am, then showers and thunderstorms. Mostly cloudy, with a high near 57. South southwest wind 0 to 15 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Night: Showers and thunderstorms. Cloudy, with a low around 33. East wind 5 to 10 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
70% chance · 0.03 in0.7 mm
Afternoon
noon–6 PM
30% chance · 0.02 in0.5 mm
Evening
6 PM–midnight
30% chance
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Rain showers likely before noon, then showers and thunderstorms likely. Mostly cloudy, with a high near 58. Southeast wind 0 to 15 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 28. Southwest wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 55. North northeast wind around 5 mph.
Night: Mostly clear, with a low around 24. South southeast wind around 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 58. South southwest wind 5 to 10 mph.
Night: Mostly clear, with a low around 25. South wind 5 to 10 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 58. South southwest wind around 5 mph.
Night: Partly cloudy, with a low around 25. South southwest wind around 5 mph.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 57. South wind around 5 mph.
Night: Partly cloudy, with a low around 26. South southwest wind 5 to 10 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
Dry
Overnight
midnight–6 AM
Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Morning
6 AM–noon
Dry
Afternoon
noon–6 PM
Dry
Evening
6 PM–midnight
20% chance · 0.03 in0.8 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts agreeIndependent forecasts are close; the range is narrow.
Dry, high 63°, low 37°.
86% chance of rain, high 57°, low 33°, cooling off.
72% chance of rain, high 58°, low 28°.
Mostly dry, highs 51–58°.
Want the meteorologists’ reasoning? Read the NWS forecast discussion (PUB) (opens in a new tab)
No meaningful changes from yesterday’s forecast.
Forecast peak 7.2 ft Tue 12 AM, action stage
Reading from Fri 7:30 AM · NWS gauge page
Forecast peak 8.7 ft Sat 6 AM, action stage
Reading from Fri 7:15 AM · NWS gauge page
What this week’s weather means for heating, cooling, pipes and fresh air.
About 80% less heating than a typical week.
Heating degree days, base 65°F
47, 17 and 5°F are the test points heat pumps are rated at. About 21 hours are near freezing and damp, when outdoor units defrost more often.
Dry air outside (dew point 46°F).
No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.
Today’s expected high is 3°2° warmer than typical.
On average 4°2° warmer than normal (daily mean temperature).
Alamosa weather by month: normals, records, snow and freeze dates
Sunrise 7:19 AM, sunset 6:15 PM.
Clouds most of the night (about 82% cover).
Waxing gibbous
92% lit · growing
UniColorado Heating & Cooling installs heat pumps, furnaces and air conditioning across the Front Range. 12,000+ heat pumps installed since 2014.