Illinois Veður Spá
Illinois weather: 12°C, clear. Á klukkustund forecast, 14-day outlook, UV, air quality and the best time til visit.
UV-vísitala in Illinois
Wear sunglasses and use SPF 30+ if you are outside for long. Burn times are approximate, for unprotected skin at peak UV.
Health and safety today
| Skin and UV | No protection needed for most skin types. |
|---|---|
| General | Aðstæður are comfortable for most people, including children and older adults, með normal clothing. |
Næstu 24 klukkustundir
Hitastig, líkur á úrkomu og vindur eftir klukkustundum
Sjá spá fyrir Illinois eftir tímabili
Illinois weather - more answers
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 12°C (54°F) með clear. Raki is 74% and wind is 8 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 12:38 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 data | USPOTUS Atlas dataset (us-states) - coordinates, hierarchy and facts. |
|---|---|
| Spá and observations | Open-Meteo (ECMWF and national models). |
| Loftgæði and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Loftslag averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Veður Service. |
| Method | Scores, 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 28, 2026 at 12:38 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
