County in Illinois

Cook County Vær Værmelding

Cook County weather: 11°C, klarvær. Time for time forecast, 14-day outlook, UV, air quality and the best time til visit.

🌙 11°C now🕔 4:25 AM local📅 Best: mai, juni, august, september and oktober👥 5.1 million

14-day forecast for Cook County

Maks. / Min.; Nedbør; UV

DagForholdMaks. / Min.NedbørVindUV
ons, okt 28⛅ Delvis skyet23° / 9°2%15 km/h4
tor, okt 29☁️ Overskyet18° / 13°14%18 km/h3
fre, okt 30☁️ Overskyet14° / 12°17%13 km/h3
lør, okt 31🌦️ Light drizzle16° / 13°30% · 0 mm11 km/h3
søn, nov 1🌦️ Light drizzle16° / 13°32% · 0 mm13 km/h1
man, nov 2☁️ Overskyet15° / 14°42%20 km/h3
tir, nov 3🌧️ Regn14° / 13°49% · 52 mm30 km/h0
ons, nov 4🌧️ Regn15° / 13°41% · 44 mm18 km/h0
tor, nov 5🌦️ Yr14° / 9°29% · 11 mm41 km/h1
fre, nov 6🌦️ Yr9° / 8°17% · 2 mm40 km/h2
lør, nov 7☁️ Overskyet10° / 7°18%19 km/h3
søn, nov 8☀️ Klar himmel12° / 6°10%10 km/h3
man, nov 9⛅ Delvis skyet14° / 7°23%17 km/h3
tir, nov 10🌦️ Lett regn14° / 8°23% · 3 mm22 km/h2

The two-week trend

Temperature trend

Cooling. The second half of the window averages 4°C cooler than the days immediately ahead.

Against the normal

The window averages 14°C against a oktober normal of 18°C - 3°C below.

Regnfall

The next 7 days carry about 2.9 times a normal week's rain for oktober (53 mm against 18 mm).

What this means for Cook County

Compared med normal

Today is warmer than average for oktober. The forecast high of 23°C is 4.9°C above the 18°C typical for this month.

Regn chance explained

Regn is very unlikely today - plans do not need a backup.

Reiser and driving

No weather-related travel disruption is expected today. Roads and airports should run normally.

Worth knowing

Northern Hemisphere, so peak summer falls in juni til august.

Worth knowing

The gap between the warmest and coldest month averages 29°C.

What til pack, what til skip

Pack for the next 7 days
  • Layers - the daily swing is 14°C, so mornings feel nothing like afternoons
  • A packable rain shell - 2 of the next 7 days carry a real chance of rain
Worth avoiding
  • If your dates are flexible, avoid januar, februar and desember - historically the least comfortable months here.

Se prognosen for Cook County etter tidsintervall

Cook County weather - more answers

Explore Cook County

Every topic we hold for this place, and the same topic for the places around it.

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Frequently asked questions

Where is Cook County?

Cook County is a county in Illinois. Its coordinates are 41.8781, -87.6298. It lies in Nord-Amerika.

What is the weather like in Cook County akkurat nå?

It is currently 11°C (51°F) med klarvær. Luftfuktighet is 76% and wind is 7 km/h.

When is the best time til visit Cook County?

mai, juni, august, september and oktober offer the most comfortable conditions in Cook County, which has a continental climate. januar, februar and desember are usually the hardest months for outdoor plans.

What time zone is Cook County in?

Cook County observes America/Chicago (UTC-05:00). The local time is 4:25 AM.

How many people live in Cook County?

Cook County has a population of approximately 5.1 million.

What is the nearest airport til Cook County?

The closest airports are O'Hare International Airport (ORD), 25 km away.

What are the top things til do in Cook County?

Popular options include Indiana Dunes National Park, Starved Rock State Park and Lake Michigan.

Related articles

Data sources and methodology

Place dataUSPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts.
Værmelding and observationsOpen-Meteo (ECMWF and national models).
Luftkvalitet and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
Klima averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
Official alertsUS National Vær Service.
MethodScores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown.

Last updated oktober 28, 2026 at 4:25 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.

Davil Hofile
Written byWriter at USPOTUS

Davil Hofile is a writer at USPOTUS covering breaking news, NFL updates, viral stories, entertainment, pets, and lifestyle. He specializes in transforming complex news into clear, trustworthy, and engaging articles that help readers quickly understand what's happening across the United States. His reporting follows Google's E-E-A-T guidelines, emphasizing accuracy, credible sources, and practical value for readers.

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