Green Valley, Illinois Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Green Valley weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Light Drizzle—0.02″85°69°—
- MondayJul 6Overcast——84°67°-1°
- TuesdayJul 7Overcast——81°63°-3°
- WednesdayJul 8Partly Cloudy——84°65°+3°
- ThursdayJul 9T-storm w/ Hail43%0.97″85°68°+1°
- FridayJul 10Drizzle45%—83°71°-2°
- SaturdayJul 11Drizzle22%0.06″83°69°0°
AQI 26 (Good), driven by Ozone. Ozone at AQI 43 now. With UV 5.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 28 around 1 PM.
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 5.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 28 around 1 PM.
- Present
- AQI 43
- UV peak
- 5.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 28
PM × Wind × Precip
PM2.5 at 5.2 µg/m³, PM10 at 5.8 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.90
- 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
- 11:17 PM
- Moonset
- 11:10 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Green Valley at a glance
- Today vs. normal: 9°F above 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 code: 61534
16-Day Forecast — Green Valley
- Sun85°69°5%
- Mon84°67°4%
- Tue81°63°1%
- Wed84°65°4%
- Thu85°68°43%
- Fri83°71°45%
- Sat83°69°22%
- Sun86°69°11%
- Mon89°70°4%
- Tue90°75°4%
- Wed79°63°6%
- Thu77°54°32%
- Fri81°62°22%
- Sat86°67°30%
- Sun87°73°29%
- Mon89°73°23%
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 — Green Valley
SPC includes Green Valley in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3NONENo severe risk
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 Green Valley
- 61534