Illinois Map
Interactive map of Illinois with coordinates, nearby places, airports and travel highlights.
Summary
Illinois is a state in United States. Illinois is a US state with its capital at Springfield. It has a population of about 12.6 million. The capital is Springfield.
Right now it is 78°F (26°C) in Illinois with clear. It feels like 86°F. Today runs from 72°F to 98°F. Chance of precipitation is 6%. Sightseeing conditions score 9.7/10 - excellent - go now.
The best time to visit Illinois is May, August, September and October. The climate is continental. January, February and December tend to be the least comfortable months. July is the warmest month with average highs near 85°F, while January is the coldest with lows near 19°F.
The closest major airport is O'Hare International Airport (ORD), about 177 mi away. Nearby highlights include Starved Rock State Park, Lake Michigan, Gateway Arch National Park and Indiana Dunes National Park.
In plain terms. Today is much warmer than average for September. The forecast high of 98°F is 18°F above the 80°F typical for this month. The best window to be outside is roughly 7 AM to 10 AM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Illinois today at 9.8/10. 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.
Map of Illinois
Interactive map with nearby places. Switch between street, terrain and satellite views.
Coordinates: 39°46′54.1″N 89°39′0.4″W (39.7817, -89.6501)
Quick facts about Illinois
| Type | State |
|---|---|
| Country | United States |
| Continent | North America |
| Coordinates | 39°46′54.1″N 89°39′0.4″W (39.7817, -89.6501) |
| Capital | Springfield |
| Population | 12.600.000 |
| Area | 57.913 sq mi |
| Abbreviation | IL |
| Time zone | America/Chicago |
| Local time | 8:58 AM (UTC-05:00) |
| Best months | May, August, September and October |
| Climate | Continental |
Maps of each city in Illinois
1 cities mapped in this atlas
Maps of each state park in Illinois
1 state and provincial parks mapped in this atlas
Maps of each county in Illinois
1 counties mapped in this atlas
Maps of each lake in Illinois
1 lakes mapped in this atlas
Cities map of Illinois
1 cities and towns mapped in this atlas
Counties map of Illinois
1 counties mapped, each with its own weather, climate and geography pages
Neighboring states and provinces in United States
Sorted by distance from Illinois.
Getting to Illinois
- O'Hare International Airport (ORD) · 177 mi
- Nashville International Airport (BNA) · 300 mi
- St. Louis · 85 mi · roughly 2 h driving
- Indianapolis · 185 mi · roughly 4.3 h driving
- Louisville · 234 mi · roughly 5.4 h driving
- Milwaukee · 242 mi · roughly 5.6 h driving
- Des Moines · 243 mi · roughly 5.6 h driving
Distances are straight-line; driving times assume a 70 km/h average and no traffic.
Airports near Illinois
Closest airports with IATA codes and distances.
| Airport | Code | Distance | Serves |
|---|---|---|---|
| O'Hare International Airport | ORD | 177 mi | Chicago |
| Nashville International Airport | BNA | 300 mi | Nashville |
State and provincial parks in Illinois
Things to do in Illinois
Attractions, parks and landmarks in and around Illinois.
Explore Illinois
Every topic we hold for this place, and the same topic for the places around it.
Map for related places
Frequently asked questions
Where is Illinois?
Illinois is a state in United States. Its coordinates are 39.7817, -89.6501. It lies in North America.
What is the weather like in Illinois right now?
It is currently 78°F (26°C) with clear. Humidity is 81% and wind is 3 mph.
When is the best time to visit Illinois?
May, August, September and October offer the most comfortable conditions in Illinois, which has a continental climate. January, February and December 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 8:58 AM.
How many people live in Illinois?
Illinois has a population of approximately 12.6 million.
What is the nearest airport to Illinois?
The closest airports are O'Hare International Airport (ORD), 177 mi away and Nashville International Airport (BNA), 300 mi away.
What are the top things to 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. |
|---|---|
| Map tiles | OpenStreetMap contributors, CARTO and Esri. |
| Elevation | Open-Meteo digital elevation model where the dataset has no value. |
| 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 September 18, 2026 at 8:58 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
