Chicago Weather Forecast
Chicago weather: 67°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
14-day forecast for Chicago
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Sat, Aug 22 | ☁️ Overcast | 81° / 64° | 17% | 14 mph | 7 |
| Sun, Aug 23 | 🌤️ Mainly clear | 75° / 60° | 2% | 11 mph | 7 |
| Mon, Aug 24 | ☁️ Overcast | 75° / 58° | 0% | 9 mph | 6 |
| Tue, Aug 25 | ☁️ Overcast | 81° / 61° | 4% | 8 mph | 6 |
| Wed, Aug 26 | 🌧️ Heavy drizzle | 84° / 65° | 22% · 0,1 in | 14 mph | 7 |
| Thu, Aug 27 | ☀️ Clear sky | 83° / 67° | 17% | 10 mph | 7 |
| Fri, Aug 28 | ☁️ Overcast | 80° / 64° | 8% | 8 mph | 7 |
| Sat, Aug 29 | ☁️ Overcast | 71° / 63° | 11% | 7 mph | 4 |
| Sun, Aug 30 | ☁️ Overcast | 74° / 60° | 21% | 9 mph | 6 |
| Mon, Aug 31 | ⛈️ Thunderstorm | 79° / 65° | 21% · 0,0 in | 12 mph | 4 |
| Tue, Sep 1 | ☁️ Overcast | 79° / 67° | 17% | 12 mph | 6 |
| Wed, Sep 2 | ☁️ Overcast | 71° / 64° | 17% | 11 mph | 6 |
| Thu, Sep 3 | ☁️ Overcast | 73° / 64° | 26% | 10 mph | 6 |
| Fri, Sep 4 | ⛅ Partly cloudy | 73° / 61° | 33% | 9 mph | 6 |
The two-week trend
Cooling. The second half of the window averages 35°F cooler than the days immediately ahead.
The window averages 77°F against a August normal of 79°F - right on average.
The next 7 days look unusually dry - roughly 14% of a normal August week (0,1 in against 0,7 in).
What this means for Chicago
Today is about average for August. The forecast high of 81°F is in line with the 79°F typical for this month.
A 17% 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 June to August.
The gap between the warmest and coldest month averages 84°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.
See the Chicago forecast by time range
Chicago weather - more answers
Explore Chicago
Every topic we hold for this place, and the same topic for the places around it.
Weather 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 North America.
What is the weather like in Chicago right now?
It is currently 67°F (19°C) with clear. Humidity is 82% and wind is 5 mph.
When is the best time to visit Chicago?
May, June, August, September and October offer the most comfortable conditions in Chicago, which has a continental climate. January, February and December 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 12:48 PM.
How many people live in Chicago?
Chicago has a population of approximately 2.7 million.
What is the nearest airport to Chicago?
The closest airports are O'Hare International Airport (ORD), 16 mi away.
What are the top things to 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. |
|---|---|
| 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 12:48 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
