Weather Forecast for Chicago
Illinois, United States of America
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Current Weather - Chicago: 26°C
Current Weather - Chicago: 26°C
Illinois, United States of America
Mist
Feels like 29°C
Wind
16 km/h S
Humidity
94%
Pressure
990 mb
UV Index
1
Visibility
5 km
Sunny
Monday, July 27, 2026
High
33°C
Low
22°C
Rain Chance
76%
Hourly Forecast
22°C
22°C
24°C
32°C
31°C
30°C
29°C
28°C
27°C
Day Statistics
Maximum Wind
20 km/h
Humidity
80%
Precipitation
24 mm
UV Index
8
Visibility
10 km
Rain Chance
76%
Snow Chance
0%
Sun & Moon
Sunrise
05:39 AM
Sunset
08:14 PM
Moonrise
07:40 PM
Moonset
03:40 AM
Moon Phase
Full Moon
Moon Illumination
99%
Air Quality
PM2.5
14
μg/m³
PM10
14.3
μg/m³
NO₂
20.4
μg/m³
O₃
87.9
μg/m³
SO₂
2.6
μg/m³
CO
181.1
μg/m³
Sunny
Tuesday, July 28, 2026
High
26°C
Low
22°C
Rain Chance
57%
Hourly Forecast
25°C
24°C
23°C
23°C
22°C
22°C
22°C
22°C
23°C
23°C
24°C
24°C
25°C
25°C
25°C
25°C
26°C
25°C
24°C
24°C
23°C
23°C
23°C
23°C
Day Statistics
Maximum Wind
29 km/h
Humidity
74%
Precipitation
2 mm
UV Index
8
Visibility
10 km
Rain Chance
57%
Snow Chance
0%
Sun & Moon
Sunrise
05:40 AM
Sunset
08:13 PM
Moonrise
08:12 PM
Moonset
04:43 AM
Moon Phase
Full Moon
Moon Illumination
100%
Air Quality
PM2.5
9.1
μg/m³
PM10
9.3
μg/m³
NO₂
7.2
μg/m³
O₃
80.8
μg/m³
SO₂
1
μg/m³
CO
144.3
μg/m³
Sunny
Wednesday, July 29, 2026
High
26°C
Low
21°C
Rain Chance
3%
Hourly Forecast
23°C
22°C
22°C
22°C
21°C
21°C
21°C
22°C
23°C
23°C
24°C
25°C
25°C
25°C
26°C
26°C
26°C
25°C
25°C
24°C
23°C
22°C
22°C
22°C
Day Statistics
Maximum Wind
18 km/h
Humidity
57%
Precipitation
0 mm
UV Index
9
Visibility
10 km
Rain Chance
3%
Snow Chance
0%
Sun & Moon
Sunrise
05:41 AM
Sunset
08:12 PM
Moonrise
08:38 PM
Moonset
05:46 AM
Moon Phase
Full Moon
Moon Illumination
99%
Air Quality
PM2.5
6.8
μg/m³
PM10
7
μg/m³
NO₂
8.2
μg/m³
O₃
69.8
μg/m³
SO₂
1.4
μg/m³
CO
119.8
μg/m³
Sunny
Thursday, July 30, 2026
High
29°C
Low
20°C
Rain Chance
3%
Hourly Forecast
22°C
22°C
21°C
21°C
21°C
20°C
20°C
21°C
23°C
25°C
26°C
27°C
28°C
28°C
28°C
29°C
29°C
28°C
27°C
27°C
27°C
26°C
25°C
25°C
Day Statistics
Maximum Wind
13 km/h
Humidity
56%
Precipitation
0 mm
UV Index
8
Visibility
10 km
Rain Chance
3%
Snow Chance
0%
Sun & Moon
Sunrise
05:42 AM
Sunset
08:11 PM
Moonrise
09:00 PM
Moonset
06:50 AM
Moon Phase
Waning Gibbous
Moon Illumination
96%
Air Quality
PM2.5
18.6
μg/m³
PM10
18.8
μg/m³
NO₂
29.7
μg/m³
O₃
82.1
μg/m³
SO₂
4.4
μg/m³
CO
204.4
μg/m³
Light drizzle
Friday, July 31, 2026
High
25°C
Low
20°C
Rain Chance
88%
Hourly Forecast
25°C
23°C
24°C
24°C
22°C
23°C
23°C
21°C
22°C
22°C
20°C
22°C
22°C
20°C
20°C
20°C
20°C
20°C
20°C
20°C
20°C
20°C
20°C
20°C
Day Statistics
Maximum Wind
22 km/h
Humidity
88%
Precipitation
13 mm
UV Index
5
Visibility
8 km
Rain Chance
88%
Snow Chance
0%
Sun & Moon
Sunrise
05:43 AM
Sunset
08:10 PM
Moonrise
09:20 PM
Moonset
07:52 AM
Moon Phase
Waning Gibbous
Moon Illumination
91%
Air Quality
PM2.5
14.9
μg/m³
PM10
15.1
μg/m³
NO₂
29.3
μg/m³
O₃
59.1
μg/m³
SO₂
2.4
μg/m³
CO
282.1
μg/m³
Patchy rain nearby
Saturday, August 01, 2026
High
21°C
Low
19°C
Rain Chance
80%
Hourly Forecast
20°C
21°C
20°C
20°C
20°C
20°C
19°C
19°C
19°C
20°C
20°C
21°C
21°C
21°C
21°C
21°C
21°C
21°C
21°C
21°C
21°C
21°C
21°C
21°C
Day Statistics
Maximum Wind
27 km/h
Humidity
91%
Precipitation
2 mm
UV Index
5
Visibility
9 km
Rain Chance
80%
Snow Chance
0%
Sun & Moon
Sunrise
05:44 AM
Sunset
08:09 PM
Moonrise
09:39 PM
Moonset
08:54 AM
Moon Phase
Waning Gibbous
Moon Illumination
83%
Patchy rain nearby
Sunday, August 02, 2026
High
24°C
Low
20°C
Rain Chance
47%
Hourly Forecast
21°C
21°C
21°C
20°C
20°C
20°C
20°C
20°C
21°C
21°C
22°C
22°C
23°C
23°C
23°C
23°C
24°C
23°C
23°C
22°C
22°C
22°C
21°C
21°C
Day Statistics
Maximum Wind
25 km/h
Humidity
80%
Precipitation
1 mm
UV Index
6
Visibility
10 km
Rain Chance
47%
Snow Chance
0%
Sun & Moon
Sunrise
05:45 AM
Sunset
08:08 PM
Moonrise
09:57 PM
Moonset
09:55 AM
Moon Phase
Waning Gibbous
Moon Illumination
75%
Solar Radiation Data
Shortwave Radiation
119.92
Diffuse Radiation
66.95
DNI
0
GTI
0
Weather Alerts
Small Craft Advisory issued July 27 at 3:56AM CDT until July 29 at 7:00AM CDT by NWS Chicago IL
* WHAT...North winds to 30 kt and significant waves to 9 ft occasionally to 12 ft expected. * WHERE...Illinois and Indiana nearshore from Winthrop Harbor IL to Michigan City IN. * WHEN...From 1 AM Tuesday to 7 AM CDT Wednesday. * IMPACTS...Conditions will be hazardous to small craft.
Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Heat Advisory issued July 27 at 5:48AM CDT until July 27 at 9:00PM CDT by NWS Chicago IL
* WHAT...For the Heat Advisory, peak heat index values up to 100 to 110 degrees expected. For the Dense Fog Advisory, visibility less than one quarter mile in dense fog. * WHERE...Benton, Jasper, Lake IN, and Newton Counties. * WHEN...For the Dense Fog Advisory, until 8 AM CDT /9 AM EDT/ this morning. For the Heat Advisory, until 9 PM CDT /10 PM EDT/ this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Low visibility could make driving conditions hazardous.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Dense Fog Advisory issued July 27 at 5:48AM CDT until July 27 at 8:00AM CDT by NWS Chicago IL
* WHAT...For the Heat Advisory, peak heat index values up to 100 to 110 degrees expected. For the Dense Fog Advisory, visibility less than one quarter mile in dense fog. * WHERE...Benton, Jasper, Lake IN, and Newton Counties. * WHEN...For the Dense Fog Advisory, until 8 AM CDT /9 AM EDT/ this morning. For the Heat Advisory, until 9 PM CDT /10 PM EDT/ this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Low visibility could make driving conditions hazardous.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
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