Chicago Weather Forecast
Chicago weather: 58°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Risk assessment for Chicago
Derived from the current forecast window - not an official warning.
Peak gusts of 35 mph and 0 thunderstorm days in the next 16 days.
Wettest single day forecast at 1,3 in, 3,1 in across the window. Flash flooding risk rises sharply above 50 mm in a day.
Active alerts for Chicago
Derived from the forecast. No official alert feed is wired for this country yet.
16-day forecast for Chicago
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Tue, Aug 25 | ☁️ Overcast | 78° / 56° | 1% | 9 mph | 7 |
| Wed, Aug 26 | ☁️ Overcast | 86° / 61° | 35% · 0,0 in | 15 mph | 6 |
| Thu, Aug 27 | ☁️ Overcast | 76° / 65° | 5% | 10 mph | 7 |
| Fri, Aug 28 | ☁️ Overcast | 71° / 66° | 2% | 10 mph | 6 |
| Sat, Aug 29 | ☁️ Overcast | 81° / 63° | 4% | 10 mph | 6 |
| Sun, Aug 30 | ☁️ Overcast | 88° / 70° | 15% | 16 mph | 7 |
| Mon, Aug 31 | 🌧️ Showers | 78° / 69° | 30% · 1,3 in | 8 mph | 1 |
| Tue, Sep 1 | ☁️ Overcast | 77° / 67° | 25% | 7 mph | 5 |
| Wed, Sep 2 | 🌧️ Heavy drizzle | 82° / 68° | 16% · 0,3 in | 8 mph | 6 |
| Thu, Sep 3 | 🌦️ Light showers | 84° / 68° | 19% · 0,1 in | 8 mph | 6 |
| Fri, Sep 4 | 🌧️ Showers | 86° / 70° | 17% · 0,8 in | 8 mph | 6 |
| Sat, Sep 5 | 🌦️ Light showers | 82° / 67° | 26% · 0,2 in | 13 mph | 3 |
| Sun, Sep 6 | 🌦️ Light drizzle | 67° / 61° | 24% · 0,0 in | 12 mph | 3 |
| Mon, Sep 7 | ☁️ Overcast | 68° / 61° | 26% | 11 mph | 5 |
| Tue, Sep 8 | 🌧️ Rain | 66° / 58° | 29% · 0,5 in | 13 mph | 4 |
| Wed, Sep 9 | ☀️ Clear sky | -- / -- | 21% | -- | — |
What this means for Chicago
Today is about average for August. The forecast high of 78°F is in line with the 79°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 84°F.
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 58°F (14°C) with clear. Humidity is 89% and wind is 4 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 3:34 AM.
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 25, 2026 at 3:34 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
