State in Amerika Serikat

Illinois Cuaca Prakiraan

Illinois weather: 12°C, cerah. Per jam forecast, 14-day outlook, UV, air quality and the best time hingga visit.

🌙 12°C now🕔 8:30 AM local📅 Best: Agustus, September and Oktober👥 12.6 million

Salju 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 Desember.

16-day forecast for Illinois

Maks. / Min.; Curah hujan; UV

HariKondisiMaks. / Min.Curah hujanAnginUV
Rab, Okt 28⛅ Berawan sebagian25° / 11°0%20 km/h4
Kam, Okt 29☁️ Berawan26° / 14°3%16 km/h4
Jum, Okt 30🌦️ Gerimis22° / 12°14% · 1 mm18 km/h4
Sab, Okt 31☁️ Berawan21° / 14°17%16 km/h2
Min, Nov 1🌦️ Light drizzle18° / 15°32% · 0 mm20 km/h1
Sen, Nov 2🌧️ Hujan deras19° / 15°44% · 17 mm30 km/h1
Sel, Nov 3🌧️ Hujan deras17° / 13°50% · 26 mm32 km/h0
Rab, Nov 4🌦️ Light showers17° / 13°35% · 9 mm14 km/h1
Kam, Nov 5🌧️ Hujan deras16° / 10°28% · 27 mm31 km/h1
Jum, Nov 6☁️ Berawan10° / 4°10%30 km/h3
Sab, Nov 7☁️ Berawan10° / 3°11%10 km/h3
Min, Nov 8☁️ Berawan13° / 3°17%11 km/h3
Sen, Nov 9☁️ Berawan15° / 4°19%17 km/h3
Sel, Nov 10🌦️ Light showers16° / 5°23% · 8 mm26 km/h3
Rab, Nov 11🌦️ Light showers14° / 8°19% · 4 mm24 km/h3
Kam, Nov 12☀️ Langit cerah-- / --23%--—

Iklim in Illinois month by month

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

JanFebMarAprMeiJunJulAguSepOktNovDesLine: average high · Bars: rainfall
BulanAvg highAvg lowHujanfallRating
Januari1°-7°62 mm★★☆☆☆
Februari8°-3°20 mm★★★☆☆
Maret15°4°90 mm★★★☆☆
April19°9°135 mm★★★☆☆
Mei24°13°100 mm★★★★☆
Juni28°19°117 mm★★★★☆
Juli30°21°129 mm★★★★☆
Agustus29°19°75 mm★★★★☆
September27°17°35 mm★★★★☆
Oktober21°10°25 mm★★★★☆
November12°3°79 mm★★★☆☆
Desember6°-2°62 mm★★☆☆☆

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

What hingga pack, what hingga skip

Pack for the next 7 days
  • Minglasses, 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 Desember - historically the least comfortable months here.

Lihat prakiraan Illinois berdasarkan rentang waktu

Illinois weather - more answers

Explore Illinois

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 Illinois?

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

What is the weather like in Illinois sekarang?

It is currently 12°C (54°F) dengan cerah. Kelembapan is 74% and wind is 8 km/h.

When is the best time hingga visit Illinois?

Agustus, September and Oktober offer the most comfortable conditions in Illinois, which has a continental climate. Januari, Februari and Desember 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 8:30 AM.

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.
Prakiraan and observationsOpen-Meteo (ECMWF and national models).
Kualitas 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 8:30 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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