Harmony, Illinois Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Harmony weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain67%1.3″83°68°—
- SundayJul 5Overcast25%—78°64°-5°
- MondayJul 6Overcast——78°61°0°
- TuesdayJul 7Overcast——80°57°+2°
- WednesdayJul 8Overcast24%—80°61°0°
- ThursdayJul 9Light Drizzle31%—76°64°-4°
- FridayJul 10Overcast31%—78°61°+2°
AQI 32 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 6.7 µg/m³, PM10 at 7.1 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
PM × Wind × Precip
PM2.5 at 6.7 µg/m³, PM10 at 7.1 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.94
- 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
- 10:52 PM
- Moonset
- 9:58 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Harmony at a glance
- Today vs. normal: 3°F above the seasonal normal for this latitude
- Last frost: April 29 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Harmony
- Sat83°68°67%
- Sun78°64°25%
- Mon78°61°2%
- Tue80°57°2%
- Wed80°61°24%
- Thu76°64°31%
- Fri78°61°31%
- Sat81°61°15%
- Sun66°58°9%
- Mon72°55°12%
- Tue78°59°9%
- Wed79°62°26%
- Thu82°65°19%
- Fri82°68°26%
- Sat86°69°21%
- Sun84°70°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 — Harmony
SPC includes Harmony in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
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 Harmony
- 60142
- 60152