Iroquois, Illinois Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Iroquois weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain56%1.3″88°71°—
- SundayJul 5Overcast36%—80°69°-8°
- MondayJul 6Overcast13%—81°64°+1°
- TuesdayJul 7Overcast——80°61°-1°
- WednesdayJul 8Clear11%—81°62°+1°
- ThursdayJul 9Light Drizzle36%0.01″81°68°0°
- FridayJul 10Overcast32%—79°66°-2°
AQI 30 (Good), driven by PM2.5. AQI down 11 over the last 6 hours (gradual decline). PM2.5 at 5.4 µg/m³, PM10 at 6.0 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
PM × Wind × Precip
PM2.5 at 5.4 µg/m³, PM10 at 6.0 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
- 10:46 PM
- Moonset
- 9:55 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Iroquois at a glance
- Today vs. normal: 3°F above the seasonal normal for this latitude
- Last frost: April 21 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 60945
16-Day Forecast — Iroquois
- Sat88°71°56%
- Sun80°69°36%
- Mon81°64°13%
- Tue80°61°6%
- Wed81°62°11%
- Thu81°68°36%
- Fri79°66°32%
- Sat82°63°20%
- Sun70°62°7%
- Mon74°58°8%
- Tue76°60°10%
- Wed80°62°23%
- Thu82°66°24%
- Fri79°69°24%
- Sat86°68°17%
- Sun82°71°29%
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 — Iroquois
SPC has placed Iroquois in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- 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.
ZIP codes in Iroquois
- 60945