State in Bandaríkin

Illinois Veður Spá

Illinois weather: 9°C, skýjað. Á klukkustund forecast, 14-day outlook, UV, air quality and the best time til visit.

☁️ 9°C now🕔 4:26 PM local📅 Best: ágúst, september and október👥 12.6 million

Samantekt

Illinois is a state in Bandaríkin. Illinois is a US state með höfuðborg í Springfield. Íbúafjöldinn er um 12.6 million. Höfuðborgin er Springfield.

Núna er hitinn 9°C (48°F) in Illinois með skýjað. Hitinn finnst vera 7°C. Í dag er hitinn frá 9°C til 22°C. Líkur á úrkomu eru 5%. Sightseeing conditions score 8.5/10 - frábært — farðu núna.

Besti tíminn til að heimsækja Illinois is ágúst, september and október. Loftslagið er continental. janúar, febrúar and desember tend til be the least comfortable months. júlí is the warmest month með average highs near 29°C, while janúar is the coldest með lows near -7°C.

The closest major airport is O'Hare International Airport (ORD), about 284 km away. Nearby highlights include Starved Rock State Park, Lake Michigan, Gateway Arch National Park and Indiana Dunes National Park.

Í einföldu máli. Today is slightly warmer than average for október. The forecast high of 22°C is 2°C above the 20°C typical for this month. The best window til be outside is roughly 4 PM til 7 PM, when temperature, rain chance and wind line up best. running is the strongest bet in Illinois today at 9.6/10. 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.

Veður í Illinois núna

☁️
9°C
Skýjað · feels like 7°C
Raki83%
Vindur7 km/h S
Vindhviður25 km/h
UV-vísitala0 · Lágt
Skýjahula100%
Loftþrýstingur1001 hPa
SkyggniGood · 19 km
Loftgæði26 · Good
Sólarupprás7:21 AM
Sólsetur6:02 PM
Tungl🌕 Full moon · 98%

Open-Meteo Updated 4:26 PM, okt 27 local time.

Sjá spá fyrir Illinois eftir tímabili

Næstu 24 klukkustundir

Hitastig, líkur á úrkomu og vindur eftir klukkustundum

7 AM☁️9°0%8 km/h
8 AM☁️10°0%8 km/h
9 AM☁️12°0%10 km/h
10 AM☁️15°0%11 km/h
11 AM☁️18°0%11 km/h
12 PM☁️20°0%14 km/h
1 PM☁️22°0%16 km/h
2 PM☁️22°0%17 km/h
3 PM☁️22°0%16 km/h
4 PM☁️22°1%15 km/h
5 PM☁️21°5%11 km/h
6 PM☁️20°3%8 km/h
7 PM☁️19°3%11 km/h
8 PM☁️16°2%9 km/h
9 PM🌙15°2%10 km/h
10 PM🌙15°2%8 km/h
11 PM☁️16°2%9 km/h
12 AM☁️16°2%10 km/h
1 AM☁️16°2%11 km/h
2 AM☁️16°2%9 km/h
3 AM☁️16°2%8 km/h
4 AM🌙14°1%6 km/h
5 AM☁️14°1%6 km/h
6 AM🌙13°1%8 km/h

16-day forecast for Illinois

Hæst / Lægst; Úrkoma; UV

DagurAðstæðurHæst / LægstÚrkomaVindurUV
þri., okt 27☁️ Skýjað22° / 9°5%17 km/h3
mið., okt 28☁️ Skýjað25° / 12°2%17 km/h4
fim., okt 29🌧️ Heavy drizzle24° / 15°9% · 3 mm20 km/h4
fös., okt 30🌦️ Drizzle23° / 11°13% · 1 mm22 km/h4
lau., okt 31🌦️ Light showers21° / 14°41% · 16 mm20 km/h2
sun., nóv 1🌦️ Light showers19° / 12°43% · 10 mm21 km/h1
mán., nóv 2☁️ Skýjað13° / 11°44%17 km/h1
þri., nóv 3☁️ Skýjað13° / 12°48%24 km/h1
mið., nóv 4🌧️ Rigning12° / 11°32% · 17 mm29 km/h0
fim., nóv 5🌦️ Light drizzle14° / 8°18% · 2 mm24 km/h1
fös., nóv 6☁️ Skýjað12° / 4°7%22 km/h3
lau., nóv 7☁️ Skýjað11° / 3°16%15 km/h3
sun., nóv 8☁️ Skýjað15° / 5°16%17 km/h3
mán., nóv 9🌦️ Light drizzle18° / 8°18% · 0 mm25 km/h2
þri., nóv 10🌦️ Light drizzle17° / 13°21% · 1 mm18 km/h2
mið., nóv 11☀️ Heiðskýrt-- / --23%--—

Loftslag in Illinois month by month

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

janfebmaraprjújúágsepoktnódesLine: average high · Bars: rainfall
MánuðurAvg highAvg lowRigningfallRating
janúar1°-7°62 mm★★☆☆☆
febrúar8°-3°20 mm★★★☆☆
mars15°4°90 mm★★★☆☆
apríl19°9°135 mm★★★☆☆
maí24°13°100 mm★★★★☆
júní28°19°117 mm★★★★☆
júlí29°21°129 mm★★★★☆
ágúst29°19°75 mm★★★★☆
september28°17°33 mm★★★★★
október20°10°37 mm★★★★☆
nóvember12°4°79 mm★★★☆☆
desember6°-2°62 mm★★☆☆☆

Loftslag type: Heimsálfaal. Heimild: Open-Meteo archive (ERA5).

Veður map for Illinois

Animated model layers. Pick a layer til load it.

Loading map…

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

Loftgæði and pollen in Illinois

26
Good
Loftgæði is satisfactory for everyone.
PM2.53.6 µg/m³
PM103.7 µg/m³
Ozone84 µg/m³
NO₂6 µg/m³
UV-vísitala0 · Lágt
Airborne hazeClear air

Loftgæði: Open-Meteo (CAMS). US AQI scale.

sun., twilight and moon

Sólarupprás7:21 AM
Sólsetur6:02 PM
Dagurlight10h 41m
Solar noon12:41 PM
Golden hour (am)7:21 AM - 8:21 AM
Golden hour (pm)5:02 PM - 6:02 PM
Blue hour (am)6:51 AM - 7:21 AM
Blue hour (pm)6:02 PM - 6:32 PM
Tungl phase🌕 Full moon · 98%
Tunglrise6:35 PM
Tunglset9:25 AM

Golden and blue hour are the standard photographic approximation around sunrise and sunset.

Best time til visit Illinois

Go in ágúst, september and október. These months score highest on comfortable temperatures, low rainfall and useful daylight.

Hardest months: janúar, febrúar and desember - expect the least comfortable mix of heat, cold or rain.

janúar★★☆☆☆
febrúar★★★☆☆
mars★★★☆☆
apríl★★★☆☆
maí★★★★☆
júní★★★★☆
júlí★★★★☆
ágúst★★★★☆
september★★★★★
október★★★★☆
nóvember★★★☆☆
desember★★☆☆☆

Veður by city in Illinois

1 cities mapped in this atlas

Veður by state park in Illinois

1 state and provincial parks mapped in this atlas

Veður by county in Illinois

1 counties mapped in this atlas

Veður by lake in Illinois

1 lakes mapped in this atlas

Explore Illinois

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

Veður for related places

Frequently asked questions

Where is Illinois?

Illinois is a state in Bandaríkin. Its coordinates are 39.7817, -89.6501. It lies in Norður-Ameríka.

What is the weather like in Illinois núna?

It is currently 9°C (48°F) með skýjað. Raki is 83% and wind is 7 km/h.

When is the best time til visit Illinois?

ágúst, september and október offer the most comfortable conditions in Illinois, which has a continental climate. janúar, febrúar 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 4:26 PM.

How many people live in Illinois?

Illinois has a population of approximately 12.6 million.

What is the nearest airport til 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 til 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.
Spá and observationsOpen-Meteo (ECMWF and national models).
Loftgæði and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
Loftslag averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
Official alertsUS National Veður 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 október 27, 2026 at 4:26 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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