Clay City, Illinois Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Clay City weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Drizzle32%0.02″89°72°—
- SundayJul 5Rain25%0.13″82°72°-7°
- MondayJul 6Overcast25%—80°68°-2°
- TuesdayJul 7Clear10%—82°62°+2°
- WednesdayJul 8Mostly Clear14%—86°66°+4°
- ThursdayJul 9Overcast32%—89°71°+3°
- FridayJul 10Light Drizzle37%0.01″92°75°+3°
AQI 37 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 50. Overcast through the UV peak window (cloud cover ~67%) — afternoon ozone should stay flat.
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 50. Overcast through the UV peak window (cloud cover ~67%) — afternoon ozone should stay flat.
- Present
- AQI 50
- UV peak
- 7.6 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 25
PM × Wind × Precip
PM2.5 at 6.0 µg/m³, PM10 at 6.7 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.90
- Wind
- light
- Recent rain
- 1h 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
- 10:46 PM
- Moonset
- 10:01 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Clay City at a glance
- Today vs. normal: 12°F above the seasonal normal for this latitude
- Last frost: April 8 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 62824
16-Day Forecast — Clay City
- Sat89°72°32%
- Sun82°72°25%
- Mon80°68°25%
- Tue82°62°10%
- Wed86°66°14%
- Thu89°71°32%
- Fri92°75°37%
- Sat82°65°28%
- Sun77°58°9%
- Mon78°59°7%
- Tue77°59°13%
- Wed82°59°10%
- Thu87°64°16%
- Fri86°68°19%
- Sat80°68°23%
- Sun78°67°17%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, 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 — Clay City
SPC has placed Clay City in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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 Clay City
- 62824