County in Illinois

Cook County Podnebje and Average Vreme

Podnebje of Cook County: average temperatures, rainfall and seasons month by month.

🌙 13°C now🕔 12:43 AM local📅 Best: maj, junij, avgust, september and oktober👥 5.1 million

Podnebje in Cook County month by month

Average high, average low and total rainfall, based on three years of reanalysis data.

janfebmaraprmajjunjulavgsepoktnovdecLine: average high · Bars: rainfall
MesecAvg highAvg lowDežfallRating
januar-2°-8°73 mm★★☆☆☆
februar4°-4°19 mm★★★☆☆
marec11°1°103 mm★★★☆☆
april15°6°113 mm★★★☆☆
maj20°11°68 mm★★★★☆
junij26°18°126 mm★★★★☆
julij28°20°127 mm★★★★☆
avgust27°19°116 mm★★★★☆
september24°17°74 mm★★★★☆
oktober18°10°79 mm★★★★☆
november10°3°68 mm★★★☆☆
december3°-3°68 mm★★☆☆☆

Podnebje type: Celinaal. Vir: Open-Meteo archive (ERA5).

Recent extremes in Cook County

Visokoest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.

Hottest day36°Cavg 27, 2024
Coldest night-25°Cjan 15, 2024
Wettest day78 mmavg 1, 2026

How Cook County compares z nearby places

Annual averages, and the difference against Cook County.

PlaceDistanceAvg tempvs hereAnnual rain
Area Code 3120 km11°Cabout the same1034 mm
Chicago0 km11°Cabout the same1034 mm
The Loop1 km11°Cabout the same1034 mm
ZIP Code 606011 km11°Cabout the same1034 mm
Wicker Park5 km11°Cabout the same996 mm

Najboljši čas za obisk Cook County

Go in maj, junij, avgust, september and oktober. These months score highest on comfortable temperatures, low rainfall and useful daylight.

Hardest months: januar, februar and december - expect the least comfortable mix of heat, cold or rain.

januar★★☆☆☆
februar★★★☆☆
marec★★★☆☆
april★★★☆☆
maj★★★★☆
junij★★★★☆
julij★★★★☆
avgust★★★★☆
september★★★★☆
oktober★★★★☆
november★★★☆☆
december★★☆☆☆

What this means for Cook County

Compared z normal

Today is about average for oktober. The forecast high of 17°C is in line z the 18°C typical for this month.

Dež chance explained

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

Potovanja 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 junij do avgust.

Worth knowing

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

What do pack, what do skip

Pack for the next 7 days
  • nedglasses, a brimmed hat and SPF 30+
  • Layers - the daily swing is 18°C, so mornings feel nothing like afternoons
Worth avoiding
  • If your dates are flexible, avoid januar, februar and december - historically the least comfortable months here.

Povzetek

Cook County is a county in Illinois. Cook County is a county in the United States. Ima približno 5.1 million.

Trenutno je 13°C (55°F) in Cook County z jasno. Občutek je 10°C. Danes so temperature od 7°C do 17°C. Verjetnost padavin je 0%. Sightseeing conditions score 9.1/10 - odlično — odpravite se zdaj.

Najboljši čas za obisk Cook County is maj, junij, avgust, september and oktober. Podnebje je continental. januar, februar and december tend do be the least comfortable months. julij is the warmest month z average highs near 28°C, while januar is the coldest z lows near -8°C.

The closest major airport is O'Hare International Airport (ORD), about 25 km away. Nearby highlights include Indiana Dunes National Park, Starved Rock State Park and Lake Michigan.

Preprosto povedano. Today is about average for oktober. The forecast high of 17°C is in line z the 18°C typical for this month. The best window do be outside is roughly 3 PM do 6 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Cook County today at 10/10. No weather-related travel disruption is expected today. Roads and airports should run normally.

Compiled from this page's own data: atlas facts plus live Open-Meteo readings.

Quick facts about Cook County

VrstaCounty
StateIllinois
DržavaZdružene države Amerike
CelinaSeverna Amerika
Koordinate41°52′41.2″N 87°37′47.3″W (41.8781, -87.6298)
Prebivalstvo5.100.000
Lokalni čas12:43 AM (UTC-05:00)
Best monthsmaj, junij, avgust, september and oktober
PodnebjeCelinaal

Vreme map for Cook County

Animated model layers. Pick a layer do load it.

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Animated layers by Vetery. For pin-level detail and nearby places, see the interactive map below.

Explore Cook County

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

Podnebje for related places

Frequently asked questions

Where is Cook County?

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

What is the weather like in Cook County zdaj?

It is currently 13°C (55°F) z jasno. Vlažnost is 70% and wind is 14 km/h.

When is the best time do visit Cook County?

maj, junij, avgust, september and oktober offer the most comfortable conditions in Cook County, which has a continental climate. januar, februar and december 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 12:43 AM.

How many people live in Cook County?

Cook County has a population of approximately 5.1 million.

What is the nearest airport do Cook County?

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

What are the top things do 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.
Napoved and observationsOpen-Meteo (ECMWF and national models).
Kakovost zraka and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
Podnebje averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
Official alertsUS National Vreme 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 6, 2026 at 12:43 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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