Chicago Climat and Average Météo
Climat of Chicago: average temperatures, rainfall and seasons month by month.
Climat in Chicago month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Mois | Max moyenne | Min moyenne | Précipitations | Évaluation |
|---|---|---|---|---|
| janvier | -2° | -8° | 73 mm | ★★☆☆☆ |
| février | 4° | -4° | 19 mm | ★★★☆☆ |
| mars | 11° | 1° | 103 mm | ★★★☆☆ |
| avril | 15° | 6° | 113 mm | ★★★☆☆ |
| mai | 20° | 11° | 68 mm | ★★★★☆ |
| juin | 26° | 18° | 126 mm | ★★★★☆ |
| juillet | 28° | 20° | 127 mm | ★★★★☆ |
| août | 27° | 19° | 116 mm | ★★★★☆ |
| septembre | 24° | 17° | 74 mm | ★★★★☆ |
| octobre | 18° | 10° | 79 mm | ★★★★☆ |
| novembre | 10° | 3° | 68 mm | ★★★☆☆ |
| décembre | 3° | -3° | 68 mm | ★★☆☆☆ |
Climat type: Continental. Source : Open-Meteo archive (ERA5).
Recent extremes in Chicago
Élevéest and lowest readings observed in the last 3 years of reanalysis data – not all-time records.
How Chicago compares avec nearby places
Annual averages, and the difference against Chicago.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Cook County | 0 km | 11°C | about the same | 1034 mm |
| Indiana Dunes National Park | 54 km | 11°C | about the same | 1110 mm |
| Starved Rock State Park | 129 km | 12°C | +1°C warmer | 1052 mm |
| Milwaukee | 131 km | 10°C | 1°C cooler | 901 mm |
| Wisconsin | 197 km | 10°C | 2°C cooler | 888 mm |
Climat by airport in Chicago
1 airports mapped in this atlas
Climat by district in Chicago
2 districts and neighborhoods mapped in this atlas
Climat by zip / postal code in Chicago
1 zip and postal codes mapped in this atlas
Climat by area code in Chicago
1 area codes mapped in this atlas
Meilleur moment pour visiter Chicago
Go in mai, juin, août, septembre and octobre. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: janvier, février and décembre – expect the least comfortable mix of heat, cold or rain.
What this means for Chicago
Today is about average for octobre. The forecast high of 17°C is in line avec the 18°C typical for this month.
Pluie is very unlikely today – plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in juin à août.
The gap between the warmest and coldest month averages 29°C.
What à pack, what à skip
- Layers – the daily swing is 14°C, so mornings feel nothing like afternoons
- If your dates are flexible, avoid janvier, février and décembre – historically the least comfortable months here.
Résumé
Chicago is a city in Illinois. Chicago is known for Architecture, deep-dish and lakefront. Sa population est d’environ 2.7 million.
Actuellement, il fait 7°C (44°F) in Chicago avec couvert. La température ressentie est de 5°C. Aujourd’hui, les températures vont de 7°C à 17°C. La probabilité de précipitations est de 0%. Les conditions pour les visites obtiennent 8.4/10 – bonnes conditions.
La meilleure période pour visiter Chicago is mai, juin, août, septembre and octobre. Le climat est continental. janvier, février and décembre sont généralement les mois les moins confortables. juillet est le mois le plus chaud, avec des maximales moyennes proches de 28°C, tandis que janvier est le mois le plus froid, avec des minimales proches de -8°C.
L’aéroport principal le plus proche est O'Hare International Airport (ORD), about 25 km away. Parmi les sites à proximité, citons Indiana Dunes National Park, Starved Rock State Park and Lake Michigan.
En termes simples. Today is about average for octobre. The forecast high of 17°C is in line avec the 18°C typical for this month. The best window à be outside is roughly 2 PM à 5 PM, when temperature, rain chance and wind line up best. running is the strongest bet in Chicago 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.
Quick facts about Chicago
| Type | City |
|---|---|
| State | Illinois |
| Pays | États-Unis |
| Continent | Amérique du Nord |
| Coordonnées | 41°52′41.2″N 87°37′47.3″W (41.8781, -87.6298) |
| Population | 2.700.000 |
| Known for | Architecture, deep-dish and lakefront |
| Heure locale | 6:35 PM (UTC-05:00) |
| Meilleurs mois | mai, juin, août, septembre and octobre |
| Climat | Continental |
Météo map for Chicago
Animated model layers. Pick a layer à load it.
Animated layers by Venty. For pin-level detail and nearby places, see the interactive map below.
Explore Chicago
Every topic we hold for this place, and the same topic for the places around it.
Climat for related places
Frequently asked questions
Where is Chicago?
Chicago is a city in Illinois. Its coordinates are 41.8781, -87.6298. It lies in Amérique du Nord.
What is the weather like in Chicago maintenant?
It is currently 7°C (44°F) avec couvert. Humidité is 100% and wind is 5 km/h.
When is the best time à visit Chicago?
mai, juin, août, septembre and octobre offer the most comfortable conditions in Chicago, which has a continental climate. janvier, février and décembre are usually the hardest months for outdoor plans.
What time zone is Chicago in?
Chicago observes America/Chicago (UTC-05:00). The heure locale is 6:35 PM.
How many people live in Chicago?
Chicago has a population of approximately 2.7 million.
What is the nearest airport à Chicago?
The closest airports are O'Hare International Airport (ORD), 25 km away.
What are the top things à do in Chicago?
Popular options include Indiana Dunes National Park, Starved Rock State Park and Lake Michigan.
What places are in Chicago?
Chicago covers 5 places in this atlas, including O'Hare International Airport, The Loop, Wicker Park, ZIP Code 60601 and Area Code 312.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (cities-us) – coordinates, hierarchy and facts. |
|---|---|
| Prévisions and observations | Open-Meteo (ECMWF and national models). |
| Qualité de l’air and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climat averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Météo 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 octobre 23, 2026 at 6:35 PM heure locale. Live blocks refresh every 15 minutes; climate averages monthly.
