Calumet City, Illinois Weather
Honeysuckle sweetens the night. Day 89 of spring. Read this microseason across nine climate regions →
Calumet City weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 16Thunderstorm24%0.46″74°59°—
- WednesdayJun 17Heavy Rain73%3.3″66°55°-8°
- ThursdayJun 18Overcast66%—71°59°+5°
- FridayJun 19Mostly Clear12%—73°59°+2°
- SaturdayJun 20Drizzle12%0.01″79°59°+6°
- SundayJun 21Light Rain52%0.16″63°60°-16°
- MondayJun 22Overcast52%—68°57°+5°
AQI 37 (Good), driven by Ozone. AQI up 9 over the last 6 hours (gradual rise). Ozone at AQI 58. Overcast through the UV peak window (cloud cover ~78%) — 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 58. Overcast through the UV peak window (cloud cover ~78%) — afternoon ozone should stay flat.
- Present
- AQI 58
- UV peak
- 5.2 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 20
PM × Wind × Precip
PM2.5 at 4.7 µg/m³, PM10 at 5.2 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.90
- Wind
- breezy
- 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).
Cut your thistles before St. John, you will have two instead of one.
- Moonrise
- 6:27 AM
- Moonset
- 9:45 PM
- In sign
- ♋︎ Cancer
Honeysuckle sweetens the night
Calumet City at a glance
- Today vs. normal: 71°F — typical for the season
- Last frost: April 26 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Calumet City
- Tue74°59°24%
- Wed66°55°73%
- Thu71°59°66%
- Fri73°59°12%
- Sat79°59°12%
- Sun63°60°52%
- Mon68°57°52%
- Tue78°59°11%
- Wed82°65°9%
- Thu85°67°21%
- Fri90°70°24%
- Sat92°75°26%
- Sun93°77°39%
- Mon94°75°33%
- Tue94°77°45%
- Wed96°78°28%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 16, 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 — Calumet City
SPC has placed Calumet City in the Enhanced Risk category for severe thunderstorms tomorrow.
- TODAYMRGLMarginal Risk
- TOMORROWENHEnhanced Risk
- DAY 3NONENo severe risk
Numerous severe storms likely. Tornadoes, large hail, and damaging wind gusts possible across the area. Track NWS warnings if storms develop.
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 Calumet City
- 60409