Auburn, Illinois Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Auburn weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Drizzle36%0.05″91°72°—
- SundayJul 5Light Drizzle15%0.01″84°72°-7°
- MondayJul 6Light Drizzle——80°66°-4°
- TuesdayJul 7Clear——81°60°+1°
- WednesdayJul 8Light Drizzle——88°65°+7°
- ThursdayJul 9Thunderstorm41%0.02″88°72°0°
- FridayJul 10Light Drizzle41%—88°72°0°
AQI 31 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 8.1 µg/m³, PM10 at 9.3 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 45. Overcast through the UV peak window (cloud cover ~91%) — afternoon ozone should stay flat.
- Present
- AQI 45
- UV peak
- 6.1 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 18
PM × Wind × Precip
PM2.5 at 8.1 µg/m³, PM10 at 9.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.87
- 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
- 10:53 PM
- Moonset
- 10:05 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Auburn at a glance
- Today vs. normal: 16°F above the seasonal normal for this latitude
- Last frost: April 13 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 62615
16-Day Forecast — Auburn
- Sat91°72°36%
- Sun84°72°15%
- Mon80°66°8%
- Tue81°60°4%
- Wed88°65°9%
- Thu88°72°41%
- Fri88°72°41%
- Sat76°62°24%
- Sun75°59°5%
- Mon76°59°5%
- Tue76°56°10%
- Wed80°60°10%
- Thu84°65°16%
- Fri86°68°23%
- Sat81°68°20%
- Sun76°65°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 — Auburn
SPC has placed Auburn 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 Auburn
- 62615