Flood Watch 7:00 AM

Chicago, Illinois

Last updated: 10:55 PM CDT  ·  Refresh
14°C
Feels like 13°
Mostly Clear
▲ 22°  /  ▼ 12°
Wind
2 mph S
Humidity
68%
Dew Point
10°
Pressure
29.46 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
24%
Sunrise
6:55 AM
Sunset
6:20 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Chicago is currently mostly clear at 14°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:55AM · Sunset: 6:20PM.

Alerts

Flood Watch
Expires 7:00 AM
35 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
14°
6%
11 PM
15°
17%
12 AM
14°
7%
1 AM
14°
9%
2 AM
13°
11%
3 AM
13°
13%
4 AM
12°
15%
5 AM
12°
15%
6 AM
12°
15%
7 AM
13°
30%
8 AM
14°
25%
9 AM
15°
25%
10 AM
16°
38%
11 AM
18°
43%
12 PM
20°
44%
1 PM
21°
43%
2 PM
21°
44%
3 PM
21°
44%
4 PM
21°
40%
5 PM
19°
40%
6 PM
19°
19%
7 PM
18°
19%
8 PM
18°
15%
9 PM
18°
15%
7-Day Forecast
Tonight
22° 12°
Mostly Clear.
Fri
21° 12°
Overcast with a 43% chance of rain.
Sat
27° 14°
Overcast.
Sun
24° 15°
Overcast.
Mon
31° 16°
Overcast with a 30% chance of rain.
Tue
31° 16°
Rain, 70% chance.
Wed
23° 14°
Drizzle, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 14° Mostly Clear 6% 2 mph S 68%
11 PM 15° Mostly Clear 17% 3 mph SSW 61%
12 AM 14° Partly Cloudy 7% 2 mph SSW 64%
1 AM 14° Partly Cloudy 9% 3 mph S 65%
2 AM 13° Partly Cloudy 11% 2 mph SE 67%
3 AM 13° Partly Cloudy 13% 3 mph SE 69%
4 AM 12° Mostly Cloudy 15% 3 mph SSE 71%
5 AM 12° Overcast 15% 2 mph S 70%
6 AM 12° Overcast 15% 2 mph SSE 70%
7 AM 13° Overcast 30% 3 mph SSE 69%
8 AM 14° Overcast 25% 2 mph SSE 67%
9 AM 15° Overcast 25% 3 mph SSE 66%
10 AM 16° Overcast 38% 4 mph SSE 65%
11 AM 18° Overcast 43% 4 mph SSE 62%
12 PM 20° Overcast 44% 5 mph SSE 60%
1 PM 21° Overcast 43% 5 mph SE 61%
2 PM 21° Overcast 44% 6 mph SE 63%
3 PM 21° Mostly Cloudy 44% 6 mph ESE 67%
4 PM 21° Mostly Cloudy 40% 6 mph ESE 70%
5 PM 19° Mostly Cloudy 40% 6 mph ESE 73%
6 PM 19° Mostly Cloudy 19% 7 mph ESE 76%
7 PM 18° Partly Cloudy 19% 7 mph ESE 77%
8 PM 18° Partly Cloudy 15% 7 mph ESE 77%
9 PM 18° Partly Cloudy 15% 8 mph ESE 78%
15-Day Forecast
Today
10/8
Mostly Clear
6%
12°
22°
Fri
10/9
Overcast
43%
12°
21°
Sat
10/10
Overcast
13%
14°
27°
Sun
10/11
Overcast
18%
15°
24°
Mon
10/12
Overcast
30%
16°
31°
Tue
10/13
Rain
70%
16°
31°
Wed
10/14
Drizzle
71%
14°
23°
Thu
10/15
Rain
82%
14°
28°
Fri
10/16
Drizzle
44%
10°
23°
Sat
10/17
Drizzle
44%
8°
16°
Sun
10/18
Clear
25%
8°
16°
Mon
10/19
Drizzle
60%
8°
19°
Tue
10/20
Clear
25%
10°
20°
Wed
10/21
Clear
60%
12°
22°
Thu
10/22
Drizzle
60%
11°
20°
35
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
21 AQI 3.8 µg/m³
O3
Ground-level ozone
Dominant
35 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 35 Good 35 21
Sat 52 Moderate 39 52
Sun 49 Good 44 49
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Fri Oct 9, 02:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 90 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE16 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index8.5
Kinematics
0–6 km Shear65 kt
0–1 km Shear14 kt
Eff. Shear—
0–1 km SRH67
0–3 km SRH193
Eff. SRH—
Storm Motion315° @ 41 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index13.3
Thermo & Levels
PWAT0.75 in
0–3 km LR4.7 °C/km
700–500 LR5.7 °C/km
Total Totals30.2
LCL929 hPa
LFC—
EL—
Freezing Lvl9,970 ft