State in Съединени щати

Illinois Време Прогноза

Illinois weather: 12°C, Ясно. Почасово forecast, 14-day outlook, UV, air quality and the best time до visit.

🌙 12°C now🕔 8:30 AM local📅 Best: август, септември and октомври👥 12.6 million

Сняг forecast for Illinois

No snow is in the current forecast window for Illinois.

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

Historically, average lows drop below freezing in януари, февруари and декември.

16-day forecast for Illinois

Макс. / Мин.; Валежи; UV

ДенУсловияМакс. / Мин.ВалежиВятърUV
ср, окт 28⛅ Променлива облачност25° / 11°0%20 km/h4
чет, окт 29☁️ Облачно26° / 14°3%16 km/h4
пет, окт 30🌦️ Ръмеж22° / 12°14% · 1 mm18 km/h4
съб, окт 31☁️ Облачно21° / 14°17%16 km/h2
нед, ное 1🌦️ Light drizzle18° / 15°32% · 0 mm20 km/h1
пон, ное 2🌧️ Превалявания19° / 15°44% · 17 mm30 km/h1
вт, ное 3🌧️ Превалявания17° / 13°50% · 26 mm32 km/h0
ср, ное 4🌦️ Light showers17° / 13°35% · 9 mm14 km/h1
чет, ное 5🌧️ Превалявания16° / 10°28% · 27 mm31 km/h1
пет, ное 6☁️ Облачно10° / 4°10%30 km/h3
съб, ное 7☁️ Облачно10° / 3°11%10 km/h3
нед, ное 8☁️ Облачно13° / 3°17%11 km/h3
пон, ное 9☁️ Облачно15° / 4°19%17 km/h3
вт, ное 10🌦️ Light showers16° / 5°23% · 8 mm26 km/h3
ср, ное 11🌦️ Light showers14° / 8°19% · 4 mm24 km/h3
чет, ное 12☀️ Ясно небе-- / --23%--—

Климат in Illinois month by month

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

Line: average high · Bars: rainfall
МесецAvg highAvg lowДъждfallRating
януари1°-7°62 mm★★☆☆☆
февруари8°-3°20 mm★★★☆☆
март15°4°90 mm★★★☆☆
април19°9°135 mm★★★☆☆
май24°13°100 mm★★★★☆
юни28°19°117 mm★★★★☆
юли30°21°129 mm★★★★☆
август29°19°75 mm★★★★☆
септември27°17°35 mm★★★★☆
октомври21°10°25 mm★★★★☆
ноември12°3°79 mm★★★☆☆
декември6°-2°62 mm★★☆☆☆

Климат type: Континентal. Източник: Open-Meteo archive (ERA5).

What до pack, what до skip

Pack for the next 7 days
  • недglasses, 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 януари, февруари and декември - historically the least comfortable months here.

Вижте прогнозата за Illinois по период

Illinois weather - more answers

Explore Illinois

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

Време for related places

Frequently asked questions

Where is Illinois?

Illinois is a state in Съединени щати. Its coordinates are 39.7817, -89.6501. It lies in Северна Америка.

What is the weather like in Illinois в момента?

It is currently 12°C (54°F) с Ясно. Влажност is 74% and wind is 8 km/h.

When is the best time до visit Illinois?

август, септември and октомври offer the most comfortable conditions in Illinois, which has a continental climate. януари, февруари and декември 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 до 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 до 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.
Прогноза and observationsOpen-Meteo (ECMWF and national models).
Качество на въздуха and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
Климат averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
Official alertsUS National Време 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 октомври 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.

More from Davil Hofile