O'Hare International Airport Climate and Average Weather
Climate of O'Hare International Airport: average temperatures, rainfall and seasons month by month.
Climate in O'Hare International Airport month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 29° | 15° | 3,1 in | ★★☆☆☆ |
| February | 40° | 24° | 1,0 in | ★★☆☆☆ |
| March | 52° | 33° | 4,3 in | ★★★☆☆ |
| April | 60° | 42° | 4,5 in | ★★★☆☆ |
| May | 70° | 50° | 3,1 in | ★★★★☆ |
| June | 81° | 63° | 5,2 in | ★★★★☆ |
| July | 84° | 67° | 5,1 in | ★★★★☆ |
| August | 81° | 64° | 2,9 in | ★★★★☆ |
| September | 77° | 59° | 3,2 in | ★★★★☆ |
| October | 65° | 48° | 3,0 in | ★★★★☆ |
| November | 49° | 36° | 2,5 in | ★★★☆☆ |
| December | 37° | 25° | 2,6 in | ★★☆☆☆ |
Climate type: Continental. Source: Open-Meteo archive (ERA5).
Recent extremes in O'Hare International Airport
Highest and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How O'Hare International Airport compares with nearby places
Annual averages, and the difference against O'Hare International Airport.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Wicker Park | 13 mi | 52°F | about the same | 38 in |
| The Loop | 16 mi | 52°F | about the same | 40 in |
| Cook County | 16 mi | 52°F | about the same | 40 in |
| Area Code 312 | 16 mi | 52°F | about the same | 40 in |
| ZIP Code 60601 | 16 mi | 52°F | about the same | 40 in |
Best time to visit O'Hare International Airport
Go in May, July, August, September and October. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
What this means for O'Hare International Airport
Today is slightly cooler than average for August. The forecast high of 77°F is 4.5°F below the 81°F typical for this month.
Rain 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 June to August.
The gap between the warmest and coldest month averages 85°F.
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
Summary
O'Hare International Airport is an airport in Chicago. O'Hare International Airport (ORD) is a commercial airport.
Right now it is 70°F (21°C) in O'Hare International Airport with clear. It feels like 69°F. Today runs from 61°F to 77°F. Chance of precipitation is 3%. Sightseeing conditions score 9.7/10 - excellent - go now.
The best time to visit O'Hare International Airport is May, July, August, September and October. The climate is continental. January, February and December tend to be the least comfortable months. July is the warmest month with average highs near 84°F, while January is the coldest with lows near 15°F.
Nearby highlights include Indiana Dunes National Park, Starved Rock State Park and Lake Michigan.
In plain terms. Today is slightly cooler than average for August. The forecast high of 77°F is 4.5°F below the 81°F typical for this month. The best window to be outside is roughly 6 PM to 9 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in O'Hare International Airport 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 O'Hare International Airport
| Type | Airport |
|---|---|
| City | Chicago |
| Country | United States |
| Continent | North America |
| Coordinates | 41°58′27.1″N 87°54′26.3″W (41.9742, -87.9073) |
| IATA code | ORD |
| Local time | 8:23 PM (UTC-05:00) |
| Best months | May, July, August, September and October |
| Climate | Continental |
Weather map for O'Hare International Airport
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Explore O'Hare International Airport
Every topic we hold for this place, and the same topic for the places around it.
Climate for related places
Frequently asked questions
Where is O'Hare International Airport?
O'Hare International Airport is an airport in Chicago. Its coordinates are 41.9742, -87.9073. It lies in North America.
What is the weather like in O'Hare International Airport right now?
It is currently 70°F (21°C) with clear. Humidity is 48% and wind is 4 mph.
When is the best time to visit O'Hare International Airport?
May, July, August, September and October offer the most comfortable conditions in O'Hare International Airport, which has a continental climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is O'Hare International Airport in?
O'Hare International Airport observes America/Chicago (UTC-05:00). The local time is 8:23 PM.
What are the top things to do in O'Hare International Airport?
Popular options include Indiana Dunes National Park, Starved Rock State Park and Lake Michigan.
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| Place data | USPOTUS Atlas dataset (airports) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather 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 23, 2026 at 8:23 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
