Excessive Heat Watch 10:00 PM Heat Advisory — Lake, IN, Porter, IN, Newton, IN, Jasper, IN, Benton, IN, Northern Cook, IL, Central Cook, IL, Southern Cook, IL 10:00 PM Heat Advisory — Dade, GA, Walker, GA, Catoosa, GA, Fannin, GA, Gilmer, GA, Pickens, GA, Cherokee, GA, Paulding, GA, Cobb, GA, North Fulton, GA, Haralson, GA, Carroll, GA, Douglas, GA, South Fulton, GA, Dawson, GA, Forsyth, GA, Hall, GA, Banks, GA, Jackson, GA, Madison, GA, Gwinnett, GA, Barrow, GA, Clarke, GA, Oconee, GA, Oglethorpe, GA, Wilkes, GA, DeKalb, GA, Rockdale, GA, Walton, GA, Newton, GA, Morgan, GA, Greene, GA, Taliaferro, GA, Heard, GA, Coweta, GA, Fayette, GA, Clayton, GA, Spalding, GA, Henry, GA, Butts, GA, Jasper, GA, Putnam, GA, Whitfield, GA, Murray, GA, Chattooga, GA, Gordon, GA, Floyd, GA, Bartow, GA, Polk, GA 7:00 PM Excessive Heat Warning — Lake, IN, Porter, IN, Newton, IN, Jasper, IN, Benton, IN, Northern Cook, IL, Central Cook, IL, Southern Cook, IL 12:00 AM

Chicago, Illinois

Last updated: 7:22 PM CDT  ·  Refresh
32°C
Feels like 37°
Clear
▲ 34°  /  ▼ 24°
Wind
13 mph SW
Humidity
58%
Dew Point
22°
Pressure
29.30 inHg
Visibility
10 mi
UV Index
2.9
Cloud Cover
4%
Sunrise
5:19 AM
Sunset
8:29 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Chicago is currently clear at 32°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2815 J/kg) — isolated convective development possible. Sunrise: 5:19AM · Sunset: 8:29PM.

Alerts

Excessive Heat Watch
Expires 10:00 PM
Heat Advisory
Lake, IN, Porter, IN, Newton, IN, Jasper, IN, Benton, IN, Northern Cook, IL, Central Cook, IL, Southern Cook, IL
Expires 10:00 PM
Heat Advisory
Dade, GA, Walker, GA, Catoosa, GA, Fannin, GA, Gilmer, GA, Pickens, GA, Cherokee, GA, Paulding, GA, Cobb, GA, North Fulton, GA, Haralson, GA, Carroll, GA, Douglas, GA, South Fulton, GA, Dawson, GA, Forsyth, GA, Hall, GA, Banks, GA, Jackson, GA, Madison, GA, Gwinnett, GA, Barrow, GA, Clarke, GA, Oconee, GA, Oglethorpe, GA, Wilkes, GA, DeKalb, GA, Rockdale, GA, Walton, GA, Newton, GA, Morgan, GA, Greene, GA, Taliaferro, GA, Heard, GA, Coweta, GA, Fayette, GA, Clayton, GA, Spalding, GA, Henry, GA, Butts, GA, Jasper, GA, Putnam, GA, Whitfield, GA, Murray, GA, Chattooga, GA, Gordon, GA, Floyd, GA, Bartow, GA, Polk, GA
Expires 7:00 PM
Excessive Heat Warning
Lake, IN, Porter, IN, Newton, IN, Jasper, IN, Benton, IN, Northern Cook, IL, Central Cook, IL, Southern Cook, IL
Expires 12:00 AM
70 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
32°
11%
8 PM
32°
29%
9 PM
30°
21%
10 PM
29°
23%
11 PM
29°
23%
12 AM
28°
16%
1 AM
28°
4%
2 AM
27°
4%
3 AM
27°
4%
4 AM
26°
5%
5 AM
24°
5%
6 AM
24°
5%
7 AM
26°
5%
8 AM
27°
5%
9 AM
28°
5%
10 AM
30°
3%
11 AM
31°
3%
12 PM
32°
3%
1 PM
33°
3%
2 PM
34°
11%
3 PM
34°
11%
4 PM
34°
15%
5 PM
33°
26%
6 PM
33°
26%
7-Day Forecast
Tonight
34° 24°
Clear with a 23% chance of rain.
Thu
34° 24°
Partly Cloudy with a 29% chance of rain.
Fri
32° 23°
Partly Cloudy with a 64% chance of rain.
Sat
30° 22°
Overcast with a 61% chance of rain.
Sun
29° 21°
Partly Cloudy with a 29% chance of rain.
Mon
27° 19°
Partly Cloudy with a 30% chance of rain.
Tue
28° 19°
Overcast.
TimeTempConditionsPrecipWindHumidity
Now 32° Clear 11% 13 mph SW 58%
8 PM 32° Clear 29% 11 mph SW 62%
9 PM 30° Clear 21% 10 mph SW 68%
10 PM 29° Clear 23% 9 mph SW 73%
11 PM 29° Clear 23% 9 mph SW 76%
12 AM 28° Clear 16% 9 mph SW 78%
1 AM 28° Clear 4% 9 mph SW 80%
2 AM 27° Clear 4% 8 mph SW 80%
3 AM 27° Clear 4% 7 mph SW 81%
4 AM 26° Clear 5% 7 mph SW 82%
5 AM 24° Mostly Clear 5% 6 mph SW 82%
6 AM 24° Mostly Clear 5% 5 mph SW 82%
7 AM 26° Mostly Clear 5% 6 mph SW 79%
8 AM 27° Partly Cloudy 5% 6 mph SW 73%
9 AM 28° Partly Cloudy 5% 7 mph SW 67%
10 AM 30° Partly Cloudy 3% 8 mph SW 61%
11 AM 31° Partly Cloudy 3% 9 mph SW 55%
12 PM 32° Partly Cloudy 3% 9 mph SW 51%
1 PM 33° Partly Cloudy 3% 10 mph SW 48%
2 PM 34° Partly Cloudy 11% 11 mph SW 48%
3 PM 34° Partly Cloudy 11% 11 mph SW 48%
4 PM 34° Partly Cloudy 15% 12 mph SW 49%
5 PM 33° Partly Cloudy 26% 11 mph SW 51%
6 PM 33° Partly Cloudy 26% 11 mph SW 54%
15-Day Forecast
Today
7/1
Clear
23%
24°
34°
Thu
7/2
Partly Cloudy
29%
24°
34°
Fri
7/3
Partly Cloudy
64%
23°
32°
Sat
7/4
Overcast
61%
22°
30°
Sun
7/5
Partly Cloudy
29%
21°
29°
Mon
7/6
Partly Cloudy
30%
19°
27°
Tue
7/7
Overcast
17%
19°
28°
Wed
7/8
Partly Cloudy
17%
21°
28°
Thu
7/9
Mostly Clear
44%
22°
29°
Fri
7/10
Rain
68%
22°
30°
Sat
7/11
Drizzle
60%
21°
30°
Sun
7/12
Drizzle
60%
21°
29°
Mon
7/13
Drizzle
60%
21°
27°
Tue
7/14
Drizzle
60%
20°
26°
Wed
7/15
Drizzle
60%
19°
24°
70
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
70 AQI 19.3 µg/m³
O3
Ground-level ozone
42 AQI 46 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 70 Moderate 42 70
Fri 54 Moderate 41 54
Sat 53 Moderate 42 53
About the Air Quality Index
0–50 Good
51–100 Moderate
101–150 Unhealthy for Sensitive Groups
151–200 Unhealthy
201–300 Very Unhealthy
301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Wed Jul 1, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2512 J/kg
MLCAPE2114 J/kg
MUCAPE2512 J/kg
SBCIN-110 J/kg
MLCIN0 J/kg
Lifted Index-6.5
Kinematics
0–6 km Shear22 kt
0–1 km Shear10 kt
Eff. Shear22 kt
0–1 km SRH15
0–3 km SRH-45
Eff. SRH-45
Storm Motion227° @ 40 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.1
STP (eff)0.0
Supercell0.0
K-Index25.5
Thermo & Levels
PWAT1.51 in
0–3 km LR6.5 °C/km
700–500 LR7.0 °C/km
Total Totals48.2
LCL861 hPa
LFC706 hPa
EL172 hPa
Freezing Lvl15,151 ft