Chemung, Illinois Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Chemung weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Showers63%0.41″80°68°—
- SundayJul 5Overcast15%—81°64°+1°
- MondayJul 6Overcast——77°61°-4°
- TuesdayJul 7Overcast——80°58°+3°
- WednesdayJul 8Thunderstorm17%0.02″81°61°+1°
- ThursdayJul 9Light Showers48%—79°64°-2°
- FridayJul 10Drizzle36%—77°62°-2°
AQI 36 (Good), driven by Ozone. AQI up 6 over the last 6 hours (gradual rise). Ozone at AQI 45. Overcast through the UV peak window (cloud cover ~66%) — afternoon ozone should stay flat.
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 45. Overcast through the UV peak window (cloud cover ~66%) — afternoon ozone should stay flat.
- Present
- AQI 45
- UV peak
- 5.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 16
PM × Wind × Precip
PM scrubbed by 3 hours of recent rain — PM2.5 down to 6.8 µg/m³, PM10 to 9.6 µg/m³.
- PM2.5/PM10
- 0.71
- Wind
- breezy
- Recent rain
- 3h in last 6h
- Pattern
- washed out
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
- 9:58 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Chemung at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: April 30 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Chemung
- Sat82°68°63%
- Sun81°64°15%
- Mon77°61°2%
- Tue80°58°1%
- Wed81°61°17%
- Thu79°64°48%
- Fri77°62°36%
- Sat74°58°10%
- Sun75°56°10%
- Mon73°55°8%
- Tue79°56°6%
- Wed76°61°33%
- Thu81°63°29%
- Fri76°68°21%
- Sat77°60°23%
- Sun74°56°29%
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 — Chemung
SPC includes Chemung 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 Chemung
- 60033