Chicago Klima and Average Vær
Klima of Chicago: average temperatures, rainfall and seasons month by month.
Klima in Chicago month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Måned | Avg high | Avg low | Regnfall | Rating |
|---|---|---|---|---|
| januar | -2° | -8° | 73 mm | ★★☆☆☆ |
| februar | 4° | -4° | 19 mm | ★★★☆☆ |
| mars | 11° | 1° | 103 mm | ★★★☆☆ |
| april | 15° | 6° | 113 mm | ★★★☆☆ |
| mai | 20° | 11° | 68 mm | ★★★★☆ |
| juni | 26° | 18° | 126 mm | ★★★★☆ |
| juli | 28° | 20° | 127 mm | ★★★★☆ |
| august | 26° | 19° | 78 mm | ★★★★☆ |
| september | 24° | 16° | 92 mm | ★★★★☆ |
| oktober | 18° | 10° | 79 mm | ★★★★☆ |
| november | 10° | 3° | 68 mm | ★★★☆☆ |
| desember | 3° | -3° | 68 mm | ★★☆☆☆ |
Klima type: Kontinental. Kilde: Open-Meteo archive (ERA5).
Recent extremes in Chicago
Høyest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How Chicago compares med 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 | 1014 mm |
| Indiana Dunes National Park | 54 km | 11°C | about the same | 1069 mm |
| Starved Rock State Park | 129 km | 12°C | +1°C warmer | 1000 mm |
| Milwaukee | 131 km | 10°C | 1°C cooler | 879 mm |
| Wisconsin | 197 km | 10°C | 2°C cooler | 846 mm |
Klima by airport in Chicago
1 airports mapped in this atlas
Klima by district in Chicago
2 districts and neighborhoods mapped in this atlas
Klima by zip / postal code in Chicago
1 zip and postal codes mapped in this atlas
Klima by area code in Chicago
1 area codes mapped in this atlas
Beste tid å besøke Chicago
Go in mai, juni, august, september and oktober. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: januar, februar and desember - expect the least comfortable mix of heat, cold or rain.
What this means for Chicago
Today is about average for august. The forecast high of 26°C is in line med the 26°C typical for this month.
A 20% chance means most of the area stays dry; a passing shower is possible but short.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in juni til august.
The gap between the warmest and coldest month averages 29°C.
What til pack, what til skip
- Lightweight, light-coloured clothing and a refillable water bottle
- sønglasses, a brimmed hat and SPF 30+
- If your dates are flexible, avoid januar, februar and desember - historically the least comfortable months here.
Sammendrag
Chicago is a city in Illinois. Chicago is known for Architecture, deep-dish and lakefront. Befolkningen er rundt 2.7 million.
Akkurat nå er det 16°C (61°F) in Chicago med klarvær. Det føles som 16°C. I dag varierer temperaturen mellom 15°C til 26°C. Sannsynligheten for nedbør er 20%. Sightseeing conditions score 9.2/10 - utmerket — dra nå.
Beste tidspunkt å besøke Chicago is mai, juni, august, september and oktober. Klimaet er continental. januar, februar and desember tend til be the least comfortable months. juli is the warmest month med average highs near 28°C, while januar is the coldest med 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.
Kort sagt. Today is about average for august. The forecast high of 26°C is in line med the 26°C typical for this month. The best window til be outside is roughly 9 AM til 12 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in Chicago today at 9.3/10. 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 |
| Land | USA |
| Kontinent | Nord-Amerika |
| Koordinater | 41°52′41.2″N 87°37′47.3″W (41.8781, -87.6298) |
| Befolkning | 2.700.000 |
| Known for | Architecture, deep-dish and lakefront |
| Lokal tid | 9:31 AM (UTC-05:00) |
| Best months | mai, juni, august, september and oktober |
| Klima | Kontinental |
Vær map for Chicago
Animated model layers. Pick a layer til load it.
Animated layers by Vindy. 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.
Klima 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 Nord-Amerika.
What is the weather like in Chicago akkurat nå?
It is currently 16°C (61°F) med klarvær. Luftfuktighet is 91% and wind is 9 km/h.
When is the best time til visit Chicago?
mai, juni, august, september and oktober offer the most comfortable conditions in Chicago, which has a continental climate. januar, februar 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 9:31 AM.
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. |
|---|---|
| Værmelding and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klima averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Vær 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 august 21, 2026 at 9:31 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
