Sterling, Colorado Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
Sterling weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Clear——97°59°—
- MondayJul 6Overcast14%—102°68°+5°
- TuesdayJul 7Light Drizzle63%—101°73°-1°
- WednesdayJul 8Showers63%0.15″93°66°-8°
- ThursdayJul 9Light Drizzle60%—95°65°+2°
- FridayJul 10Overcast27%—97°69°+2°
- SaturdayJul 11Clear11%—94°69°-3°
AQI 59 (Moderate), driven by PM2.5. AQI down 44 over the last 6 hours — air quality is improving sharply. PM2.5 at 8.0 µg/m³ (AQI 44) with a 0.87 fine-to-coarse ratio and 4 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 44 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 20 around 1 PM.
- Present
- AQI 44
- UV peak
- 3.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 20
PM × Wind × Precip
PM2.5 at 8.0 µg/m³ (AQI 44) with a 0.87 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.87
- 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
- 11:12 PM
- Moonset
- 11:07 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Sterling at a glance
- Today vs. normal: 8°F below the seasonal normal for this latitude
- Last frost: April 20 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 80751
15-Day Forecast — Sterling
- Sun98°58°1%
- Mon102°68°14%
- Tue101°73°63%
- Wed93°66°63%
- Thu95°65°60%
- Fri97°69°27%
- Sat94°69°11%
- Sun98°71°3%
- Mon109°76°3%
- Tue107°75°11%
- Wed108°74°20%
- Thu104°74°30%
- Fri99°71°32%
- Sat103°70°29%
- Sun95°74°32%
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 — Sterling
SPC includes Sterling 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 Sterling
- 80751