Germantown, Illinois Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Germantown weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast17%—93°73°—
- SundayJul 5Overcast20%—84°72°-9°
- MondayJul 6Light Drizzle13%—87°69°+3°
- TuesdayJul 7Overcast——85°67°-2°
- WednesdayJul 8Overcast14%—88°67°+3°
- ThursdayJul 9Light Drizzle31%—89°72°+1°
- FridayJul 10Heavy Drizzle38%0.02″87°72°-2°
AQI 39 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 6.4 µg/m³, PM10 at 7.0 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
Ozone × UV × Sky
Ozone at AQI 36 now. With UV 4.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 23 around 1 PM.
- Present
- AQI 36
- UV peak
- 4.8 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 23
PM × Wind × Precip
PM2.5 at 6.4 µg/m³, PM10 at 7.0 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.91
- 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
- 10:51 PM
- Moonset
- 10:06 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Germantown at a glance
- Today vs. normal: 11°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: 62245
16-Day Forecast — Germantown
- Sat93°73°17%
- Sun84°72°20%
- Mon87°69°13%
- Tue85°67°8%
- Wed88°67°14%
- Thu89°72°31%
- Fri87°72°38%
- Sat87°74°28%
- Sun77°62°12%
- Mon74°58°7%
- Tue78°60°11%
- Wed82°64°12%
- Thu82°66°13%
- Fri82°68°11%
- Sat86°69°15%
- Sun89°73°19%
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 — Germantown
SPC has placed Germantown 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 Germantown
- 62245