Greeley, Colorado Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
Greeley weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——96°59°—
- MondayJul 6Overcast——101°63°+5°
- TuesdayJul 7Light Drizzle33%—99°65°-2°
- WednesdayJul 8Light Drizzle57%—97°62°-2°
- ThursdayJul 9Light Drizzle43%—99°58°+2°
- FridayJul 10Overcast10%—97°59°-2°
- SaturdayJul 11Clear——99°60°+2°
AQI 69 (Moderate), driven by PM2.5. AQI down 42 over the last 6 hours — air quality is improving sharply. PM2.5 at 10.8 µg/m³ (AQI 54) with a 0.88 fine-to-coarse ratio and 6 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 34 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 15 around 1 PM.
- Present
- AQI 34
- UV peak
- 3.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 15
PM × Wind × Precip
PM2.5 at 10.8 µg/m³ (AQI 54) with a 0.88 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.88
- Wind
- light
- 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
- 11:18 PM
- Moonset
- 11:14 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Greeley at a glance
- Today vs. normal: 4°F below the seasonal normal for this latitude
- Last frost: April 18 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 80631, 80634
15-Day Forecast — Greeley
- Sun96°59°3%
- Mon101°63°2%
- Tue99°65°33%
- Wed97°62°57%
- Thu99°58°43%
- Fri97°59°10%
- Sat99°60°5%
- Sun102°64°3%
- Mon109°62°5%
- Tue107°69°15%
- Wed111°66°31%
- Thu104°66°32%
- Fri102°64°38%
- Sat106°64°39%
- Sun94°68°39%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Greeley
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 — Greeley
SPC includes Greeley 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 Greeley
- 80631
- 80634
- 80632
- 80633
- 80638
- 80639