Weston, Colorado Weather
The monsoon settles in. Day 15 of summer. Read this microseason across nine climate regions →
Weston weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast19%—83°56°—
- MondayJul 6Overcast27%—85°56°+2°
- TuesdayJul 7Heavy Rain75%0.51″88°58°+3°
- WednesdayJul 8Overcast52%—89°59°+1°
- ThursdayJul 9Heavy Drizzle55%0.04″92°58°+3°
- FridayJul 10Light Drizzle48%0.01″86°57°-6°
- SaturdayJul 11Mostly Clear12%—90°60°+4°
AQI 82 (Moderate), driven by PM2.5. AQI down 66 over the last 6 hours — air quality is improving sharply. PM2.5 at 10.9 µg/m³ (AQI 54) with a 0.69 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
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 48. Overcast through the UV peak window (cloud cover ~67%) — afternoon ozone should stay flat.
- Present
- AQI 48
- UV peak
- 3.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 11
PM × Wind × Precip
PM2.5 at 10.9 µg/m³ (AQI 54) with a 0.69 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.69
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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
- 11:16 PM
- Moonset
- 11:15 AM
- In sign
- ♓︎ Pisces
The monsoon settles in
Weston at a glance
- Today vs. normal: 15°F below the seasonal normal for this latitude
- Last frost: March 30 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 81091
15-Day Forecast — Weston
- Sun83°56°19%
- Mon85°56°27%
- Tue88°58°75%
- Wed89°59°52%
- Thu92°58°55%
- Fri86°57°48%
- Sat90°60°12%
- Sun86°61°4%
- Mon94°59°4%
- Tue96°66°15%
- Wed96°68°26%
- Thu93°61°32%
- Fri89°60°39%
- Sat91°59°44%
- Sun93°62°58%
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 — Weston
SPC includes Weston 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 Weston
- 81091