Du Bois, Illinois Weather
Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Du Bois weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast11%—87°70°—
- MondayJul 6Overcast13%—88°71°+1°
- TuesdayJul 7Overcast——83°69°-5°
- WednesdayJul 8Overcast——87°65°+4°
- ThursdayJul 9Overcast36%—91°72°+4°
- FridayJul 10Drizzle43%0.06″90°70°-1°
- SaturdayJul 11Drizzle42%—84°70°-6°
AQI 38 (Good), driven by PM2.5. AQI projected to climb to 61 over the next 6 hours. PM2.5 at 10.3 µg/m³ (AQI 53) with a 0.85 fine-to-coarse ratio and 3 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 53. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 53
- UV peak
- 5.7 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 20
PM × Wind × Precip
PM2.5 at 10.3 µg/m³ (AQI 53) with a 0.85 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.85
- 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
- 11:13 PM
- Moonset
- 11:09 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Du Bois at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: April 5 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 62831
16-Day Forecast — Du Bois
- Sun85°70°11%
- Mon88°71°13%
- Tue83°69°8%
- Wed87°65°8%
- Thu91°72°36%
- Fri90°70°43%
- Sat84°70°42%
- Sun89°70°20%
- Mon92°72°12%
- Tue100°76°7%
- Wed84°68°9%
- Thu82°60°16%
- Fri89°64°28%
- Sat94°68°30%
- Sun95°73°32%
- Mon95°76°26%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 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 — Du Bois
SPC includes Du Bois in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
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 Du Bois
- 62831