State in Amerika Syarikat

Illinois Cuaca Ramalan

Illinois weather: 18°C, cerah. Setiap jam forecast, 14-day outlook, UV, air quality and the best time hingga visit.

🌙 18°C now🕔 11:29 PM local📅 Best: Ogos, September and Oktober👥 12.6 million

Salji forecast for Illinois

No snow is in the current forecast window for Illinois.

0 of the next 16 nights are forecast hingga reach freezing.

Historically, average lows drop below freezing in Januari, Februari and Disember.

16-day forecast for Illinois

Maks. / Min.; Hujan; UV

HariKeadaanMaks. / Min.HujanAnginUV
Rab, Okt 28🌤️ Kebanyakannya cerah26° / 12°0%20 km/h4
Kha, Okt 29☁️ Mendung26° / 14°3%18 km/h4
Jum, Okt 30🌧️ Heavy rain18° / 11°15% · 20 mm17 km/h4
Sab, Okt 31🌦️ Light drizzle21° / 15°14% · 0 mm14 km/h2
Aha, Nov 1🌧️ Hujan17° / 15°30% · 12 mm14 km/h1
Isn, Nov 2🌦️ Light showers20° / 15°47% · 8 mm22 km/h3
Sel, Nov 3🌧️ Hujan lebat20° / 17°55% · 41 mm29 km/h1
Rab, Nov 4🌦️ Light showers18° / 17°46% · 15 mm28 km/h1
Kha, Nov 5🌦️ Hujan ringan17° / 14°28% · 5 mm15 km/h1
Jum, Nov 6🌦️ Hujan ringan14° / 7°15% · 4 mm25 km/h1
Sab, Nov 7☁️ Mendung12° / 3°7%17 km/h3
Aha, Nov 8☁️ Mendung12° / 4°11%9 km/h3
Isn, Nov 9🌦️ Light drizzle14° / 6°13% · 1 mm29 km/h2
Sel, Nov 10🌦️ Light drizzle12° / 7°11% · 2 mm41 km/h3
Rab, Nov 11☁️ Mendung11° / 3°13%18 km/h3
Kha, Nov 12⛅ Berawan sebahagian9° / 2°11%22 km/h3

Iklim in Illinois 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
Januari1°-7°62 mm★★☆☆☆
Februari8°-3°20 mm★★★☆☆
Mac15°4°90 mm★★★☆☆
April19°9°135 mm★★★☆☆
Mei24°13°100 mm★★★★☆
Jun28°19°117 mm★★★★☆
Julai30°21°129 mm★★★★☆
Ogos29°19°75 mm★★★★☆
September27°17°35 mm★★★★☆
Oktober21°10°25 mm★★★★☆
November12°3°79 mm★★★☆☆
Disember6°-2°62 mm★★☆☆☆

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

What hingga pack, what hingga skip

Pack for the next 7 days
  • Ahaglasses, a brimmed hat and SPF 30+
  • A packable rain shell - 2 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.

Lihat ramalan untuk Illinois mengikut tempoh

Illinois weather - more answers

Explore Illinois

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 Illinois?

Illinois is a state in Amerika Syarikat. Its coordinates are 39.7817, -89.6501. It lies in Amerika Utara.

What is the weather like in Illinois sekarang?

It is currently 18°C (64°F) dengan cerah. Kelembapan is 57% and wind is 16 km/h.

When is the best time hingga visit Illinois?

Ogos, September and Oktober offer the most comfortable conditions in Illinois, which has a continental climate. Januari, Februari and Disember are usually the hardest months for outdoor plans.

What time zone is Illinois in?

Illinois observes America/Chicago (UTC-05:00). The local time is 11:29 PM.

How many people live in Illinois?

Illinois has a population of approximately 12.6 million.

What is the nearest airport hingga Illinois?

The closest airports are O'Hare International Airport (ORD), 284 km away and Nashville International Airport (BNA), 483 km away.

What are the top things hingga do in Illinois?

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

What places are in Illinois?

Illinois covers 4 places in this atlas, including Chicago, Starved Rock State Park, Cook County and Lake Michigan.

Related articles

Data sources and methodology

Place dataUSPOTUS Atlas dataset (us-states) - 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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