Ground Stop at O'Hare Saturday Morning Sep. 19, 2026 with Thunderstorms; Chance of Precipitation 100%.
Chicago weather: Heavy rains bring weekend flood threat
O'Hare is in a rare LEVEL 3 risk for Flash Flooding ...
NWS Chicago/X ...
ORD Status
Captured Sat Sep 19 2026 6:40 AM CDT
Ground Stop
19/5:27 AM CDT—19/7:00 AM CDT
Departures to Chicago OHare International are grounded due to thunderstorms.
Probability of extension is medium (30-60%).
Grounding applies to departures from ZAU ZLC ZTL ZDC ZNY ZFW ZOB ZDV ZBW ZKC ZME ZID ZAB ZMP CYHZ CYOW CYUL CYYZ
Advisory
Scope
Current Airport Config.
Arrival Runway
9L/10C/10R
Departure Runway
9R/10L
Arrival Rate
16
SOURCE: National Airspace System
Chicago-O'Hare International Airport via NOAA's National Weather Service
September 19 2026, 5:51 am CDT
Thunderstorm Rain Fog/Mist and 63 F
Winds Northeast at 11.5 MPH (10 KT)
Pressure 30.01
Humidity 97%.
O'HARE FORECAST …
Sat September 19, 2026 6:44 AM
Saturday: Showers and thunderstorms, mainly before 1pm, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. High near 76. South wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Saturday: Showers and thunderstorms, mainly before 1pm, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. High near 76. South wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Saturday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 8pm. Low around 64. East southeast wind 5 to 10 mph becoming north northwest after midnight. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Sunday: Showers likely and possibly a thunderstorm. Cloudy, with a high near 69. Northeast wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 57. East northeast wind around 15 mph, with gusts as high as 25 mph.
Monday: A 30 percent chance of showers, mainly before 1pm. Cloudy, with a high near 64. East northeast wind around 15 mph, with gusts as high as 25 mph.
Monday Night: Mostly cloudy, with a low around 54.
NWS Chicago/X ...
Waves of showers and storms this weekend will be capable of torrential downpours which may result in localized flooding, especially in poor drainage and low-lying areas. Some uncertainty in the placement of the heaviest rain remains, so stay tuned for updates. #ILwx #INwx pic.twitter.com/LZyP4bUnbY
— NWS Chicago (@NWSChicago) September 19, 2026
TEXT ONLY: Waves of showers and storms this weekend will be capable of torrential downpours which may result in localized flooding, especially in poor drainage and low-lying areas. Some uncertainty in the placement of the heaviest rain remains, so stay tuned for updates.
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