Onarga, Illinois Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Onarga weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain72%0.92″87°70°—
- SundayJul 5Overcast23%—82°69°-5°
- MondayJul 6Overcast10%—81°64°-1°
- TuesdayJul 7Overcast——80°60°-1°
- WednesdayJul 8Clear——81°61°+1°
- ThursdayJul 9Thunderstorm38%0.07″82°69°+1°
- FridayJul 10Overcast38%—78°67°-4°
AQI 28 (Good), driven by PM2.5. AQI down 9 over the last 6 hours (gradual decline). PM2.5 at 9.7 µg/m³ (AQI 52) with a 0.89 fine-to-coarse ratio and 4 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 during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 40. Overcast through the UV peak window (cloud cover ~63%) — afternoon ozone should stay flat.
- Present
- AQI 40
- UV peak
- 4.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 11
PM × Wind × Precip
PM2.5 at 9.7 µg/m³ (AQI 52) with a 0.89 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.89
- Wind
- calm
- 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
- 10:48 PM
- Moonset
- 9:57 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Onarga at a glance
- Today vs. normal: 11°F above the seasonal normal for this latitude
- Last frost: April 20 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 60955
16-Day Forecast — Onarga
- Sat87°70°72%
- Sun82°69°23%
- Mon81°64°10%
- Tue80°60°3%
- Wed81°61°7%
- Thu82°69°38%
- Fri78°67°38%
- Sat82°64°13%
- Sun70°60°6%
- Mon72°56°8%
- Tue77°58°12%
- Wed80°62°20%
- Thu81°66°25%
- Fri81°69°29%
- Sat85°69°26%
- Sun82°72°35%
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 — Onarga
SPC has placed Onarga 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 Onarga
- 60955