County in Illinois

Cook County Cuaca Ramalan

Cook County weather: 17°C, cerah. Setiap jam forecast, 14-day outlook, UV, air quality and the best time hingga visit.

🌙 17°C now🕔 11:29 PM local📅 Best: Mei, Jun, Ogos, September and Oktober👥 5.1 million

Cook County weather in Ogos

27°
average high · low 19°C
★★★★☆
ranked #4 of 12 months

One of the best months hingga visit Cook County.

Average high27°C
Average low19°C
Mean23°C
Hujanfall116 mm

Ogos runs 11°C warmer than the annual average in Cook County.

Compare dengan September.

Cuaca map for Cook County

Animated model layers. Pick a layer hingga load it.

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

Iklim in Cook County month by month

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

JanFebMacAprMeiJunJulOgoSepOktNovDisLine: average high · Bars: rainfall
BulanAvg highAvg lowHujanfallRating
Januari-2°-8°73 mm★★☆☆☆
Februari4°-4°19 mm★★★☆☆
Mac11°1°103 mm★★★☆☆
April15°6°113 mm★★★☆☆
Mei20°11°68 mm★★★★☆
Jun26°18°126 mm★★★★☆
Julai28°20°127 mm★★★★☆
Ogos27°19°116 mm★★★★☆
September24°17°97 mm★★★★☆
Oktober19°10°55 mm★★★★☆
November10°3°68 mm★★★☆☆
Disember3°-3°68 mm★★☆☆☆

Iklim type: Benuaal. Sumber: Open-Meteo archive (ERA5).

Masa terbaik untuk berkunjung Cook County

Go in Mei, Jun, Ogos, September and Oktober. These months score highest on comfortable temperatures, low rainfall and useful daylight.

Hardest months: Januari, Februari and Disember - expect the least comfortable mix of heat, cold or rain.

Januari★★☆☆☆
Februari★★★☆☆
Mac★★★☆☆
April★★★☆☆
Mei★★★★☆
Jun★★★★☆
Julai★★★★☆
Ogos★★★★☆
September★★★★☆
Oktober★★★★☆
November★★★☆☆
Disember★★☆☆☆

What hingga pack, what hingga skip

Pack for the next 7 days
  • Ahaglasses, a brimmed hat and SPF 30+
  • Layers - the daily swing is 17°C, so mornings feel nothing like afternoons
  • A packable rain shell - 3 of the next 7 days carry a real chance of rain
Worth avoiding
  • If your dates are flexible, avoid Januari, Februari and Disember - historically the least comfortable months here.

How Cook County compares dengan nearby places

Annual averages, and the difference against Cook County.

PlaceDistanceAvg tempvs hereAnnual rain
Area Code 3120 km11°Cabout the same1033 mm
Chicago0 km11°Cabout the same1033 mm
The Loop1 km11°Cabout the same1033 mm
ZIP Code 606011 km11°Cabout the same1034 mm
Wicker Park5 km11°Cabout the same996 mm

Lihat ramalan untuk Cook County mengikut tempoh

Cook County weather - more answers

Explore Cook County

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

Cuaca 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 Amerika Utara.

What is the weather like in Cook County sekarang?

It is currently 17°C (62°F) dengan cerah. Kelembapan is 60% and wind is 14 km/h.

When is the best time hingga visit Cook County?

Mei, Jun, Ogos, September and Oktober offer the most comfortable conditions in Cook County, which has a continental climate. Januari, Februari and Disember 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 11:29 PM.

How many people live in Cook County?

Cook County has a population of approximately 5.1 million.

What is the nearest airport hingga Cook County?

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

What are the top things hingga 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.
Ramalan and observationsOpen-Meteo (ECMWF and national models).
Kualiti udara and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
Iklim averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
Official alertsUS National Cuaca 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 11:29 PM 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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