地理 of Illinois
地理 of Illinois: location, coordinates, elevation, terrain and the places around it.
地理 of Illinois
Gateway Arch National Park is 137 km至the south, St. Louis is 137 km至the south, Missouri is 255 km至the south-west and Indiana is 298 km至the east.
地图：Illinois
Interactive map，天气为nearby places. Switch between street, terrain and satellite views.
坐标: 39°46′54.1″N 89°39′0.4″W (39.7817, -89.6501)
Quick facts about Illinois
地理 by city in Illinois
1 cities mapped in this atlas
地理 by state park in Illinois
1 state and provincial parks mapped in this atlas
地理 by county in Illinois
1 counties mapped in this atlas
地理 by lake in Illinois
1 lakes mapped in this atlas
摘要
Illinois is a state in 美国. Illinois is a US state，首都是Springfield. 人口约为12.6 million. 首都是Springfield.
目前气温为14°C (57°F) in Illinois，天气为晴. 体感温度为11°C. 今天气温在4°C至23°C. 降水概率为0%. Sightseeing conditions score 9.6/10 - 极佳 — 现在适合出行.
最佳旅游时间是Illinois is 八月, 九月 and 十月. 气候为continental. 一月, 二月 and 十二月 tend至be the least comfortable months. 七月 is the warmest month，天气为average highs near 29°C, while 一月 is the coldest，天气为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.
简单来说。 Today is slightly warmer than average for 十月. The forecast high of 23°C is 2.5°C above the 20°C typical for this month. The best window至be outside is roughly 11 AM至2 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Illinois today at 10/10. 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.
气候 in Illinois month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| 月份 | Avg high | Avg low | 雨fall | Rating |
|---|---|---|---|---|
| 一月 | 1° | -7° | 62 mm | ★★☆☆☆ |
| 二月 | 8° | -3° | 20 mm | ★★★☆☆ |
| 三月 | 15° | 4° | 90 mm | ★★★☆☆ |
| 四月 | 19° | 9° | 135 mm | ★★★☆☆ |
| 五月 | 24° | 13° | 100 mm | ★★★★☆ |
| 六月 | 28° | 19° | 117 mm | ★★★★☆ |
| 七月 | 29° | 21° | 129 mm | ★★★★☆ |
| 八月 | 29° | 19° | 75 mm | ★★★★☆ |
| 九月 | 28° | 17° | 33 mm | ★★★★★ |
| 十月 | 20° | 10° | 37 mm | ★★★★☆ |
| 十一月 | 12° | 4° | 79 mm | ★★★☆☆ |
| 十二月 | 6° | -2° | 62 mm | ★★☆☆☆ |
气候 type: 大洲al. 来源： Open-Meteo archive (ERA5).
Explore Illinois
Every topic we hold for this place, and the same topic for the places around it.
地理 for related places
Frequently asked questions
Where is Illinois?
Illinois is a state in 美国. Its coordinates are 39.7817, -89.6501. It lies in 北美洲.
What is the weather like in Illinois现在?
It is currently 14°C (57°F)，天气为晴. 湿度 is 49% and wind is 7 km/h.
When is the best time至visit Illinois?
八月, 九月 and 十月 offer the most comfortable conditions in Illinois, which has a continental climate. 一月, 二月 and 十二月 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 10:37 PM.
How many people live in Illinois?
Illinois has a population of approximately 12.6 million.
What is the nearest airport至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至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. |
|---|---|
| 地图 tiles | OpenStreet地图 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 十月 20, 2026 at 10:37 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
