Henry, Illinois Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Henry weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain69%0.52″86°69°—
- SundayJul 5Overcast18%—83°69°-3°
- MondayJul 6Overcast——81°64°-2°
- TuesdayJul 7Overcast——80°59°-1°
- WednesdayJul 8Overcast10%—83°64°+3°
- ThursdayJul 9Thunderstorm46%0.34″81°69°-2°
- FridayJul 10Overcast41%—78°64°-3°
AQI 26 (Good), driven by Ozone. AQI down 5 over the last 6 hours (gradual decline). Ozone at AQI 39. Overcast through the UV peak window (cloud cover ~68%) — afternoon ozone should stay flat.
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 39. Overcast through the UV peak window (cloud cover ~68%) — afternoon ozone should stay flat.
- Present
- AQI 39
- UV peak
- 6.1 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 16
PM × Wind × Precip
PM2.5 at 6.9 µg/m³, PM10 at 7.8 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.88
- Wind
- light
- Recent rain
- 1h 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
- 10:02 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Henry at a glance
- Today vs. normal: 9°F above the seasonal normal for this latitude
- Last frost: April 23 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 61537
16-Day Forecast — Henry
- Sat86°69°69%
- Sun83°69°18%
- Mon81°64°5%
- Tue80°59°2%
- Wed83°64°10%
- Thu81°69°46%
- Fri78°64°41%
- Sat83°65°15%
- Sun69°60°9%
- Mon74°57°10%
- Tue75°60°10%
- Wed79°63°16%
- Thu82°65°19%
- Fri83°69°26%
- Sat86°70°29%
- Sun84°73°32%
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 — Henry
SPC has placed Henry 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 Henry
- 61537