Chicago, IL 60617 Weather

Cook County8:42 PM CDT41.73°N, 87.56°W

Current conditions

Clear
61°
Clear
Feels like 61°
High 68° Thursday·Low 50° tonight
WindESE 5 mph
Humidity51%
Dew point43°
Pressure30.22 inHg
Visibility10 mi
Cloud cover6%
UV index0 Low
Sunrise7:10 AM
Sunset6:01 PM

Observed at Chicago, Chicago Midway Airport · 37 min ago

Forecast

10-day

  • Tonight

    Clear, with a low around 50. Southwest wind around 0 mph.

  • Thursday

    Sunny. High near 68, with temperatures falling to around 64 in the afternoon. North wind 0 to 5 mph.

  • Thursday Night

    Partly cloudy. Low around 49, with temperatures rising to around 51 overnight. East wind 0 to 5 mph.

National Weather Service forecast updated 4 hrs ago.

Hourly

Hourly forecast
  1. Now Mostly Clear 60°
  2. 9 PM Clear 59°
  3. 10 PM Clear 58°
  4. 11 PM Clear 56°
  5. Thu12 AM Clear 55°
  6. 1 AM Clear 54°
  7. 2 AM Clear 54°
  8. 3 AM Clear 53°
  9. 4 AM Clear 52°
  10. 5 AM Clear 51°
  11. 6 AM Sunny 51°
  12. 7 AM Sunny 51°
  13. 8 AM Sunny 52°
  14. 9 AM Sunny 56°
  15. 10 AM Sunny 61°
  16. 11 AM Sunny 64°
  17. 12 PM Sunny 66°
  18. 1 PM Sunny 68°
  19. 2 PM Sunny 66°
  20. 3 PM Sunny 66°
  21. 4 PM Sunny 65°
  22. 5 PM Sunny 64°
  23. 6 PM Mostly Clear 62°
  24. 7 PM Mostly Clear 61°

10-day forecast

Details
  1. TonightOct 21 Clear Clear50°
  2. ThuOct 22 Sunny Sunny49°68°
  3. FriOct 23 Mostly Sunny Mostly Sunny51°69°
  4. SatOct 24 Mostly Sunny Mostly Sunny52°70°
  5. SunOct 25 Partly Sunny Partly Sunny54°72°
  6. MonOct 26 Partly Sunny Partly Sunny51°67°
  7. TueOct 27 Partly Sunny Partly Sunny14%48°62°
  8. WedOct 28 Partly Sunny Partly Sunny13%64°
  9. ThuOct 29 Cloudy Cloudy40°57°
  10. FriOct 30 Cloudy Cloudy45°56°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
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Weather news near Chicago

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Air quality

66
Moderate
Fine particles (PM2.5)

Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Forecast

  • WedModerate
  • ThuModerate
  • FriModerate

Chicago, IL reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:10 AM
Sunset 6:01 PM
Daylight 10 h 51 min (−2 min 40 s tomorrow)
Waxing Gibbous · 81% lit
Moonrise 3:44 PM Moonset 2:08 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low61° / 44°
Record high87° (1953)
Record low26° (1952)
Wettest2.24 in (1933)
Yesterday69° / 46°
Month to date2.13 in (normal 2.29 in)

Chicago Midway Ap, records since 1928. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in LOT, issued 7 hrs ago

Key Messages

- The dry and unseasonably mild weather will continue through the upcoming weekend.

Discussion

Issued at 136 PM CDT Wed Oct 21 2026

An anomalously strong mid-level ridge over the central CONUS will anchor omega blocking across much of North America over the next several days. Meanwhile, an elongated surface ridge extending from the Lower Mississippi River Valley to the Canadian Maritimes is in the processes of congealing with another expansive high pressure shifting toward the Upper Great Lakes. As a result, quiet weather with unseasonably warm conditions will continue through the upcoming weekend. As was observed the past few mornings, generally clear skies and light/calm winds should promote shallow fog across primarily interior northern Illinois late tonight through sunrise Thursday.

The blocking pattern will slowly break down early next week as the ridge flattens and a southwestern upper-level low begins to meander toward the central CONUS. A series of smaller troughs on the periphery of a developing longwave trough across the north Pacific and western Canada will eventually pick up the southwestern low. Consensus guidance suggests that the influence of the low on our area could occur as early as Monday night, but more likely Tuesday and Wednesday. Cooler and more seasonable conditions would accompany this system.

Kluber

Aviation

Issued at 1217 PM CDT Wed Oct 21 2026

Expect generally VFR conditions with a few mid-level clouds through the period as high pressure drifts over the area. However, as has been observed during the past few mornings, MIFG/BCFG is likely at RFD/DPA and VFR BR is possible at ORD late tonight through sunrise Thursday.

Light SW winds are expected this afternoon, though a weak lake breeze may wash out and turn winds SE 5 knots or less over ORD and especially MDW toward sunset. Winds will become calm or light and VRB tonight into Thursday morning, with a lake- enhanced NE wind shift likely by Thursday afternoon.

Kluber

Lot Watches

IL...None. IN...None. LM...None.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.