Best Time до Visit Illinois
Най-добро време за посещение Illinois: август, септември and октомври. Месец-by-month temperature, rainfall and crowd guidance.
Най-добро време за посещение Illinois
Go in август, септември and октомври. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: януари, февруари and декември - expect the least comfortable mix of heat, cold or rain.
Климат in Illinois month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Месец | Avg high | Avg low | Дъждfall | Rating |
|---|---|---|---|---|
| януари | 1° | -7° | 62 mm | ★★☆☆☆ |
| февруари | 8° | -3° | 20 mm | ★★★☆☆ |
| март | 15° | 4° | 90 mm | ★★★☆☆ |
| април | 19° | 9° | 135 mm | ★★★☆☆ |
| май | 24° | 13° | 100 mm | ★★★★☆ |
| юни | 28° | 19° | 117 mm | ★★★★☆ |
| юли | 29° | 21° | 129 mm | ★★★★☆ |
| август | 29° | 19° | 75 mm | ★★★★☆ |
| септември | 28° | 17° | 33 mm | ★★★★★ |
| октомври | 20° | 10° | 37 mm | ★★★★☆ |
| ноември | 12° | 4° | 79 mm | ★★★☆☆ |
| декември | 6° | -2° | 62 mm | ★★☆☆☆ |
Климат type: Континентal. Източник: Open-Meteo archive (ERA5).
How Illinois compares с nearby places
Annual averages, and the difference against Illinois.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Gateway Arch National Park | 137 km | 15°C | +1°C warmer | 1156 mm |
| St. Louis | 137 km | 15°C | +1°C warmer | 1156 mm |
| Missouri | 255 km | 15°C | +1°C warmer | 1006 mm |
| Indianapolis | 298 km | 13°C | 1°C cooler | 1135 mm |
| Indiana | 298 km | 13°C | 1°C cooler | 1135 mm |
Най-добро време за посещение each city in Illinois
1 cities mapped in this atlas
Най-добро време за посещение each state park in Illinois
1 state and provincial parks mapped in this atlas
Най-добро време за посещение each county in Illinois
1 counties mapped in this atlas
Най-добро време за посещение each lake in Illinois
1 lakes mapped in this atlas
What до pack, what до skip
- Lightweight, light-coloured clothing and a refillable water bottle
- недglasses, a brimmed hat and SPF 30+
- Layers - the daily swing is 25°C, so mornings feel nothing like afternoons
- If your dates are flexible, avoid януари, февруари and декември - historically the least comfortable months here.
Обобщение
Illinois is a state in Съединени щати. Illinois is a US state със столица Springfield. Населението е около 12.6 million. Столицата е Springfield.
В момента е 9°C (48°F) in Illinois с Ясно. Усеща се като 7°C. Днес температурите са от 8°C до 23°C. Вероятността за валежи е 0%. Sightseeing conditions score 8.7/10 - Отлично — тръгнете сега.
Най-доброто време за посещение на Illinois is август, септември and октомври. Климатът е continental. януари, февруари and декември tend до be the least comfortable months. юли is the warmest month с average highs near 29°C, while януари is the coldest с 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.
Накратко. Today is slightly warmer than average for октомври. The forecast high of 23°C is 2.8°C above the 20°C typical for this month. The best window до be outside is roughly 12 PM до 3 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.
Времето в Illinois в момента
Open-Meteo Updated 5:17 AM, окт 3 local time.
Weekend outlook
☀️ 23° / 8°
Ясно небе · 0% rain · wind 12 km/h
🌤️ 24° / 9°
Предимно ясно · 0% rain · wind 21 km/h
Какво да правите in Illinois
Забележителности, parks and landmarks in and around Illinois.
Quick facts about Illinois
| Тип | State |
|---|---|
| Държава | Съединени щати |
| Континент | Северна Америка |
| Координати | 39°46′54.1″N 89°39′0.4″W (39.7817, -89.6501) |
| Capital | Springfield |
| Население | 12.600.000 |
| Area | 149.995 km² |
| Abbreviation | IL |
| Часова зона | America/Chicago |
| Местно време | 5:17 AM (UTC-05:00) |
| Best months | август, септември and октомври |
| Климат | Континентal |
Explore Illinois
Every topic we hold for this place, and the same topic for the places around it.
Best Time до Visit 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 9°C (48°F) с Ясно. Влажност is 74% and wind is 7 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 5:17 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 data | USPOTUS Atlas dataset (us-states) - coordinates, hierarchy and facts. |
|---|---|
| Прогноза and observations | Open-Meteo (ECMWF and national models). |
| Качество на въздуха and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Климат averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Време 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 октомври 3, 2026 at 5:17 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
