Cooksville, Illinois Weather
Fireflies pulse through the magnolias. Day 78 of spring. Read this microseason across nine climate regions →
Cooksville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Overcast——84°59°—
- FridayJun 5Light Showers23%0.08″82°69°-2°
- SaturdayJun 6Light Showers34%0.06″86°66°+4°
- SundayJun 7Light Showers48%—85°69°-1°
- MondayJun 8Showers77%0.13″78°69°-7°
- TuesdayJun 9Thunderstorm46%—88°68°+10°
- WednesdayJun 10Thunderstorm31%—89°73°+1°
AQI 66 (Moderate), driven by PM2.5. AQI up 10 over the last 6 hours (gradual rise). PM2.5 at 8.7 µg/m³, PM10 at 10.4 µg/m³ — typical background levels with no transport signature.
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 38. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 38
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 5
PM × Wind × Precip
PM2.5 at 8.7 µg/m³, PM10 at 10.4 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.84
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 4:56 AM
- Moonset
- 3:01 PM
- In sign
- ♒︎ Aquarius
Fireflies pulse through the magnolias
Cooksville at a glance
- Today vs. normal: 74°F — typical for the season
- Last frost: April 19 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 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 — Cooksville
SPC has placed Cooksville in the Marginal Risk category for severe thunderstorms tomorrow.
- TODAYNONENo severe risk
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
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.