Alamosa, Colorado Weather
The monsoon settles in. Day 15 of summer. Read this microseason across nine climate regions →
Alamosa weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——86°50°—
- MondayJul 6Light Drizzle——88°53°+2°
- TuesdayJul 7Drizzle53%0.04″89°50°+1°
- WednesdayJul 8Light Drizzle28%0.01″90°52°+1°
- ThursdayJul 9Overcast24%—88°50°-2°
- FridayJul 10Overcast10%—91°47°+3°
- SaturdayJul 11Partly Cloudy——95°50°+4°
AQI 84 (Moderate), driven by PM2.5. AQI down 36 over the last 6 hours — air quality is improving sharply. PM2.5 at 16.4 µg/m³, PM10 at 18.0 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 43 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 19 around 1 PM.
- Present
- AQI 43
- UV peak
- 3.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 19
PM × Wind × Precip
PM2.5 at 16.4 µg/m³, PM10 at 18.0 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.91
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:21 PM
- Moonset
- 11:19 AM
- In sign
- ♓︎ Pisces
The monsoon settles in
Alamosa at a glance
- Today vs. normal: 13°F below the seasonal normal for this latitude
- Last frost: April 1 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 81101
15-Day Forecast — Alamosa
- Sun86°50°1%
- Mon88°53°8%
- Tue89°50°53%
- Wed90°52°28%
- Thu88°50°24%
- Fri91°47°10%
- Sat95°50°5%
- Sun92°52°6%
- Mon97°51°6%
- Tue93°56°10%
- Wed97°56°28%
- Thu90°53°46%
- Fri89°54°48%
- Sat93°57°70%
- Sun94°58°71%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Alamosa
SPC includes Alamosa in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Alamosa
- 81101