Millstadt, Illinois Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Millstadt weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast23%—94°75°—
- SundayJul 5Overcast21%—81°72°-13°
- MondayJul 6Overcast21%—87°69°+6°
- TuesdayJul 7Overcast13%—85°67°-2°
- WednesdayJul 8Overcast13%—90°67°+5°
- ThursdayJul 9Light Drizzle29%—96°71°+6°
- FridayJul 10Thunderstorm29%0.01″90°72°-6°
AQI 37 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 7.6 µg/m³ (AQI 42) with a 0.93 fine-to-coarse ratio and 6 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 9 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 32 now. With UV 3.2 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 14 around 1 PM.
- Present
- AQI 32
- UV peak
- 3.2 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 14
PM × Wind × Precip
PM2.5 at 7.6 µg/m³ (AQI 42) with a 0.93 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.93
- Wind
- light
- 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
- 10:53 PM
- Moonset
- 10:08 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Millstadt at a glance
- Today vs. normal: 12°F above the seasonal normal for this latitude
- Last frost: April 7 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 62260
16-Day Forecast — Millstadt
- Sat94°75°23%
- Sun81°72°21%
- Mon87°69°21%
- Tue85°67°13%
- Wed90°67°13%
- Thu96°71°29%
- Fri90°72°29%
- Sat89°72°18%
- Sun80°65°11%
- Mon79°60°2%
- Tue80°62°5%
- Wed82°63°12%
- Thu82°65°14%
- Fri81°68°10%
- Sat86°70°13%
- Sun91°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 — Millstadt
SPC has placed Millstadt 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 Millstadt
- 62260