Prairie du Rocher, Illinois Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Prairie du Rocher weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain40%0.75″95°73°—
- SundayJul 5Rain43%0.19″86°72°-9°
- MondayJul 6Overcast29%—89°70°+3°
- TuesdayJul 7Overcast——88°69°-1°
- WednesdayJul 8Overcast14%—95°67°+7°
- ThursdayJul 9Light Drizzle22%—100°75°+5°
- FridayJul 10Light Showers38%0.02″91°73°-9°
AQI 35 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 8.5 µg/m³, PM10 at 9.2 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 36 now. With UV 7.6 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 26 around 1 PM.
- Present
- AQI 36
- UV peak
- 7.6 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 26
PM × Wind × Precip
PM2.5 at 8.5 µg/m³, PM10 at 9.2 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.92
- 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
- 10:52 PM
- Moonset
- 10:08 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Prairie du Rocher at a glance
- Today vs. normal: 19°F above the seasonal normal for this latitude
- Last frost: April 4 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 62277
16-Day Forecast — Prairie du Rocher
- Sat95°73°40%
- Sun86°72°43%
- Mon89°70°29%
- Tue88°69°8%
- Wed95°67°14%
- Thu100°75°22%
- Fri91°73°38%
- Sat95°72°21%
- Sun82°65°8%
- Mon81°59°6%
- Tue81°60°9%
- Wed85°64°9%
- Thu84°66°10%
- Fri81°68°14%
- Sat91°70°16%
- Sun95°74°16%
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 — Prairie du Rocher
SPC has placed Prairie du Rocher 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 Prairie du Rocher
- 62277