Detroit, Illinois Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Detroit weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast19%—90°73°—
- SundayJul 5Heavy Drizzle21%0.09″85°73°-5°
- MondayJul 6Light Drizzle10%—83°68°-2°
- TuesdayJul 7Clear——82°63°-1°
- WednesdayJul 8Overcast——89°64°+7°
- ThursdayJul 9Thunderstorm39%0.04″87°71°-2°
- FridayJul 10Light Showers43%0.10″84°71°-3°
AQI 28 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 9.9 µg/m³, PM10 at 11.3 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 during the projected peak around 9 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 37. Overcast through the UV peak window (cloud cover ~82%) — afternoon ozone should stay flat.
- Present
- AQI 37
- UV peak
- 5.4 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 13
PM × Wind × Precip
PM2.5 at 9.9 µg/m³, PM10 at 11.3 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.88
- Wind
- breezy
- 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
- 10:56 PM
- Moonset
- 10:09 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Detroit at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: April 14 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Detroit
- Sat90°73°19%
- Sun85°73°21%
- Mon83°68°10%
- Tue82°63°3%
- Wed89°64°6%
- Thu87°71°39%
- Fri84°71°43%
- Sat85°69°23%
- Sun75°59°6%
- Mon76°57°6%
- Tue77°60°11%
- Wed80°64°13%
- Thu83°64°13%
- Fri83°67°23%
- Sat86°69°17%
- Sun88°72°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 — Detroit
SPC has placed Detroit 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 Detroit
- 62363