Chicago, IL 60693 Weather

Cook County1:14 AM CDT41.85°N, 87.65°W

Current conditions

Patchy Fog
52°
Patchy Fog
Feels like 52°
High 65°·Low 48° tonight
WindCalm
Humidity87%
Dew point48°
Pressure30.37 inHg
Visibility10 mi
Cloud cover19%
UV index0 Low
Sunrise7:09 AM
Sunset6:03 PM

Observed at Chicago, Chicago Midway Airport · 39 min ago

Forecast

10-day

  • Overnight

    Patchy fog after 1am. Mostly clear. Low around 48, with temperatures rising to around 51 overnight. East wind around 0 mph.

  • Tuesday

    Patchy fog before 10am. Sunny. High near 65, with temperatures falling to around 63 in the afternoon. East northeast wind 0 to 5 mph.

  • Tuesday Night

    Partly cloudy, with a low around 48. East southeast wind 0 to 5 mph.

National Weather Service forecast updated 1 hr ago.

Hourly

Hourly forecast
  1. Now Patchy Fog 53°
  2. 2 AM Patchy Fog 53°
  3. 3 AM Patchy Fog 53°
  4. 4 AM Patchy Fog 52°
  5. 5 AM Patchy Fog 51°
  6. 6 AM Patchy Fog 50°
  7. 7 AM Patchy Fog 49°
  8. 8 AM Patchy Fog 50°
  9. 9 AM Patchy Fog 54°
  10. 10 AM Mostly Sunny 58°
  11. 11 AM Sunny 61°
  12. 12 PM Sunny 63°
  13. 1 PM Sunny 64°
  14. 2 PM Sunny 65°
  15. 3 PM Sunny 65°
  16. 4 PM Sunny 64°
  17. 5 PM Sunny 63°
  18. 6 PM Mostly Clear 60°
  19. 7 PM Mostly Clear 58°
  20. 8 PM Mostly Clear 57°
  21. 9 PM Mostly Clear 57°
  22. 10 PM Partly Cloudy 57°
  23. 11 PM Partly Cloudy 56°
  24. Wed12 AM Partly Cloudy 55°

10-day forecast

Details
  1. TonightOct 19 Patchy Fog Patchy Fog48°
  2. TodayOct 20 Patchy Fog then Sunny Patchy Fog then Sunny48°65°
  3. WedOct 21 Sunny Sunny52°68°
  4. ThuOct 22 Sunny Sunny51°67°
  5. FriOct 23 Sunny Sunny50°65°
  6. SatOct 24 Mostly Sunny Mostly Sunny54°67°
  7. SunOct 25 Partly Sunny Partly Sunny53°68°
  8. MonOct 26 Mostly Sunny Mostly Sunny65°
  9. TueOct 27 Rain Rain0.18 in48°55°
  10. WedOct 28 Cloudy Cloudy42°50°

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

60
Moderate
Fine particles (PM2.5)

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

Forecast

  • TueModerate
  • WedModerate
  • ThuModerate

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 7:09 AM
Sunset 6:03 PM
Daylight 10 h 53 min (−2 min 41 s tomorrow)
Waxing Gibbous · 66% lit
Moonrise 3:22 PM Moonset 1:03 AM
Full moon Oct 26 New moon Nov 9

Nearby

Forecasters' discussion

From the National Weather Service office in LOT, issued 6 hrs ago

Key Messages

- Shallow fog may develop in northeastern Illinois early Tuesday morning. Any fog would dissipate a few hours after sunrise.

- An extended period of dry and above to much above average temperatures is expected through the next 7 days.

Discussion

Issued at 1223 PM CDT Mon Oct 19 2026

The only item of note is a threat for shallow fog overnight into tomorrow morning near Lake Michigan where a modestly more moist environment will advect inland. Otherwise, no significant weather is expected the next 7 days with above to much above average temperatures each day. Generally light winds should allow weak lake breezes to form each of the next several afternoons, but probably only result in slightly cooler conditions right near the lake. Other than a bit of mid-high level cloudiness this afternoon, much of the week looks to be mostly sunny.

- Izzi/Borchardt

Aviation

Issued at 615 PM CDT Mon Oct 19 2026

Light and variable winds (at times prevailing out of the east) will prevail through the TAF period. Shallow ground fog may develop in the vicinity of ORD/MDW early tomorrow morning (08-13Z timeframe). We have maintained the targeted TEMPO group for 1 1/2SM BR introduced in the 18z tafs. Otherwise, there are no aviation concerns through the TAF period.

KJB/Borchardt

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.