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Plan your week in Cook County with our detailed 7-Day Weather Forecast. Access reliable daily temperature highs and lows, rain chances, and weekly weather pattern summaries.

Cook County 7-Day Weather Forecast

Sunday, Oct 25, 2026

Nighttime
43°F

Partly Cloudy

Feels like 43°F

Humidity

67%

Wind Speed

14.5 mph

Precipitation

0 in

Pressure

1025 hPa

UV Index

0

Visibility

10 mi

Cloud Cover

99%

Dew Point

34°F

7-Day Weather Forecast

Today

Oct 25

Partly Cloudy
55°H
38°L
0%

Mon

Oct 26

Partly Cloudy
46°H
34°L
0%

Tue

Oct 27

Partly Cloudy
41°H
35°L
18%

Wed

Oct 28

Partly Cloudy
52°H
42°L
0%

Thu

Oct 29

Partly Cloudy
47°H
42°L
0%

Fri

Oct 30

Partly Cloudy
45°H
35°L
0%

Sat

Oct 31

Partly Cloudy
49°H
41°L
0%

24-Hour Forecast

8 AM

43°

0%

9 AM

43°

0%

10 AM

42°

0%

11 AM

41°

0%

12 PM

39°

0%

1 PM

38°

0%

2 PM

42°

0%

3 PM

46°

0%

4 PM

49°

0%

5 PM

52°

0%

6 PM

54°

0%

7 PM

55°

0%

8 PM

54°

0%

9 PM

53°

0%

10 PM

51°

0%

11 PM

48°

0%

12 AM

46°

0%

1 AM

45°

0%

2 AM

44°

0%

3 AM

43°

0%

4 AM

41°

0%

5 AM

40°

0%

6 AM

39°

0%

7 AM

38°

0%

Air Quality (AQI)

31Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5

0.9 µg/m³

PM10

1.2 µg/m³

Sun & Moon Phase

Sunrise

6:00 AM

Sunset

8:00 PM

Moon Phase

Full Moon

Full Moon

Wind Conditions & Storm Tracking

Wind Direction

319.5° NW

Sustained Wind

14.5 mph

Wind Gusts

14.5 mph

7-Day Temp Range

Week's Hottest

55°F

Max Rain Prob

18%

Expected 7-Day Swings

34°
55°

High and low limits expected over the next week.

Extended Local Forecasts

14 Day Weather Forecast7 Day Weather ForecastHourly Weather Tracker

Location View

Cook County · 47.76°N, 90.41°W
Radar Page
Coordinates47.7592°N, 90.4068°W
Elevationm
TimezoneAmerica/New_York

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Safety & Environmental Index

MetricValueStatus / Interpretation
Air Quality (AQI)31Good
UV Index0Low Risk
Visibility10 milesClear

Frequently Asked Questions

The 7-day forecast for Cook County includes comprehensive daily weather summaries, max/min temperatures, and expected rainfall to keep you prepared for the week.

About Cook County Climate & Weather

Weather forecast for Cook County is powered by high-resolution weather models using open-source infrastructure. Check current temperatures, rain radar graphs, hourly wind speeds, humidity values, and ultraviolet indexes directly from our weather tracking console.

Meteorological Data: Weather data for this area is aggregated from global and regional forecast models (GFS, HRRR, ERA5) and updated continuously every hour.