Chicago Loftslag and Average Veður
Loftslag of Chicago: average temperatures, rainfall and seasons month by month.
Loftslag in Chicago month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Mánuður | Avg high | Avg low | Rigningfall | Rating |
|---|---|---|---|---|
| janúar | -2° | -8° | 73 mm | ★★☆☆☆ |
| febrúar | 4° | -4° | 19 mm | ★★★☆☆ |
| mars | 11° | 1° | 103 mm | ★★★☆☆ |
| apríl | 15° | 6° | 113 mm | ★★★☆☆ |
| maí | 20° | 11° | 68 mm | ★★★★☆ |
| júní | 26° | 18° | 126 mm | ★★★★☆ |
| júlí | 28° | 20° | 127 mm | ★★★★☆ |
| ágúst | 27° | 19° | 116 mm | ★★★★☆ |
| september | 24° | 17° | 74 mm | ★★★★☆ |
| október | 18° | 10° | 79 mm | ★★★★☆ |
| nóvember | 10° | 3° | 68 mm | ★★★☆☆ |
| desember | 3° | -3° | 68 mm | ★★☆☆☆ |
Loftslag type: Heimsálfaal. Heimild: Open-Meteo archive (ERA5).
Recent extremes in Chicago
Háttest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Chicago compares með 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 | 898 mm |
| Wisconsin | 197 km | 10°C | 2°C cooler | 888 mm |
Loftslag by airport in Chicago
1 airports mapped in this atlas
Loftslag by district in Chicago
2 districts and neighborhoods mapped in this atlas
Loftslag by zip / postal code in Chicago
1 zip and postal codes mapped in this atlas
Loftslag by area code in Chicago
1 area codes mapped in this atlas
Best time til visit Chicago
Go in maí, júní, ágúst, september and október. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: janúar, febrúar and desember - expect the least comfortable mix of heat, cold or rain.
What this means for Chicago
Today is warmer than average for október. The forecast high of 23°C is 5.3°C above the 18°C typical for this month.
Rigning 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 júní til ágúst.
The gap between the warmest and coldest month averages 29°C.
What til pack, what til skip
- Layers - the daily swing is 14°C, so mornings feel nothing like afternoons
- If your dates are flexible, avoid janúar, febrúar and desember - historically the least comfortable months here.
Samantekt
Chicago is a city in Illinois. Chicago is known for Architecture, deep-dish and lakefront. Íbúafjöldinn er um 2.7 million.
Núna er hitinn 10°C (49°F) in Chicago með clear. Hitinn finnst vera 7°C. Í dag er hitinn frá 10°C til 23°C. Líkur á úrkomu eru 1%. Sightseeing conditions score 8.7/10 - frábært — farðu núna.
Besti tíminn til að heimsækja Chicago is maí, júní, ágúst, september and október. Loftslagið er continental. janúar, febrúar and desember tend til be the least comfortable months. júlí is the warmest month með average highs near 28°C, while janúar is the coldest með lows near -8°C.
The closest major airport is O'Hare International Airport (ORD), about 25 km away. Nearby highlights include Indiana Dunes National Park, Starved Rock State Park and Lake Michigan.
Í einföldu máli. Today is warmer than average for október. The forecast high of 23°C is 5.3°C above the 18°C typical for this month. The best window til be outside is roughly 12 PM til 3 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Chicago 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.
Quick facts about Chicago
| Tegund | City |
|---|---|
| State | Illinois |
| Land | Bandaríkin |
| Heimsálfa | Norður-Ameríka |
| Hnit | 41°52′41.2″N 87°37′47.3″W (41.8781, -87.6298) |
| Mannfjöldi | 2.700.000 |
| Known for | Architecture, deep-dish and lakefront |
| Staðartími | 3:07 PM (UTC-05:00) |
| Best months | maí, júní, ágúst, september and október |
| Loftslag | Heimsálfaal |
Veður map for Chicago
Animated model layers. Pick a layer til load it.
Animated layers by Vindury. 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.
Loftslag 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 Norður-Ameríka.
What is the weather like in Chicago núna?
It is currently 10°C (49°F) með clear. Raki is 80% and wind is 9 km/h.
When is the best time til visit Chicago?
maí, júní, ágúst, september and október offer the most comfortable conditions in Chicago, which has a continental climate. janúar, febrúar and desember are usually the hardest months for outdoor plans.
What time zone is Chicago in?
Chicago observes America/Chicago (UTC-05:00). The local time is 3:07 PM.
How many people live in Chicago?
Chicago has a population of approximately 2.7 million.
What is the nearest airport til Chicago?
The closest airports are O'Hare International Airport (ORD), 25 km away.
What are the top things til 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. |
|---|---|
| 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 3:07 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
