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Chicago, Illinois weather

United States · America/Chicago · 41.88, -87.63

“Use my location” asks your browser for your coordinates so we can load your local forecast and any official warnings for your area. Your coordinates are used for that request only: they are not stored on our servers, sold, or used to build a profile. If your browser blocks location, we fall back to an approximate city-level lookup from your IP address.

Chicago, Illinois hourly forecast

Every hour our forecast source publishes for Chicago, Illinois — 47 hours ahead, free, with no account and no subscription. Temperature, feels like, rain chance and amount, wind and gusts, humidity, cloud cover.

Today at a glance

  • Warmest hour: 1 PM at 55°F
  • Coolest hour: 11 PM at 48°F
  • Strongest wind: 4 PM near 31 mph
  • No hour on this day has a rain chance above 50%.

Source updated: 5:51:21 PM · WeatherSignal checked: 5:51:21 PM

Source: Open-Meteo (national weather-service models)

Hour by hour

All times shown in America/Chicago. Pick a day to see its hours.

Hourly weather forecast for Chicago, Illinois
TimeConditionTempFeelsPrecip %AmountWindHumidityCloud
1 PMLight rain55°50°0%0.00″23 mph NNW69%99%
2 PMOvercast55°49°0%0.00″26 mph NNW69%99%
3 PMLight rain54°48°0%0.02″27 mph N68%100%
4 PMLight rain54°48°0%0.02″31 mph N71%49%
5 PMLight rain53°46°0%0.01″28 mph N70%20%
6 PMMainly clear52°45°0%0.00″30 mph N69%27%
7 PMMainly clear52°44°0%0.00″29 mph N66%20%
8 PMMainly clear51°44°0%0.00″27 mph N65%15%
9 PMMainly clear50°42°0%0.00″28 mph N65%23%
10 PMMainly clear49°42°0%0.00″26 mph N65%19%
11 PMMainly clear48°41°0%0.00″24 mph NNW66%23%

What this forecast is built from

  • Source: MET Norway Locationforecast (backup source)
  • How far it goes: 47 hours (2.0 days), one value per 60 minutes
  • The primary forecast source was unavailable, so this location is running on the backup source, which publishes a shorter hourly horizon.
  • Columns are hidden when the source does not publish that measurement for this location, rather than showing an invented number.

Hourly timing is the least certain part of any forecast, and days six through eight are far less certain than tomorrow. Rain can arrive earlier or later than the hour shown. Official warnings always take precedence.

Planning your week in Chicago, Illinois

  • The warmest afternoon ahead is Thursday, reaching about 64°F.
  • The coldest night ahead dips to about 42°F.
  • This is a dry stretch — most days show rain chances under 20%, good for outdoor plans.
  • The breeziest day looks like today, with sustained wind near 31 mph.

Common questions about Chicago, Illinois weather

How accurate is the Chicago, Illinois forecast?
The next 48 hours are usually reliable on temperature and sky cover, with timing that can shift by an hour or two. Days three and four are dependable for the overall pattern. Beyond that, treat the numbers as a planning direction rather than a promise — we label confidence on every day so you can judge for yourself.
When will it rain in Chicago, Illinois?
No day in the current outlook has a rain chance above 40%, so conditions look favorable for outdoor plans across the week.
Where does this forecast come from?
Forecast values come from national weather model data, and official warnings come from the National Weather Service. We show the source and the last-updated time on every page, and we never invent a number the source did not publish — missing measurements are hidden, not guessed.
How often is this page updated?
The forecast refreshes whenever the source model publishes new data, typically several times a day. The freshness note near the top of the page shows exactly when the numbers you are looking at were issued.

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