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Real-Time Meteorological Observation Network
Chicago, IL  (CHII2)  Harrison-Dever Crib, approx. 2.75 miles offshore

See Metadata File for full description of instruments and parameters, as well as site maps. See also rtmon status, webcam status
Conditions at 4:50 pm CST on 01/21/2026 (DOY 021 22:50 GMT)
(Updated every 15 minutes)
Wind Speed:   13.8 kts   (7.1 m/s)
Max Wind Speed:   17.5 kts   (9.0 m/s)
Wind Direction:   244° (WSW)
Air Temperature:   28.9 °F   (-1.7 °C)
Wind Chill:   17.3 °F   (-8.1 °C)
Dew Point:   17.1 °F   (-8.3 °C)
Relative Humidity:   60.9 %
Data & Plots of Previous 3 Hours (2 minute increments)
Data & Plots of Previous 5 Days (hourly increments)
         1 Day Windrose Plot, 5 Day Windrose Plot, (explanation)         
Click on image to enlarge
(images updated every 30 minutes)

[Live Webcam Image from Chicago, IL Met Station Camera 1]

[Live Webcam Image from Chicago, IL Met Station Camera 2]

[Live Webcam Image from Chicago, IL Met Station Camera 3]

18-hr animations: 1  2  3
Previous 48 images (top of hour only): 1  2  3
All Images (past 10 days)

Nearby Webcams (external sites):
Webcams of Chicago courtesy of WXYZ Webcams
Loop and Lake Michigan courtesy of ABC News

---------- Previous 18 Hours (at top of hour)  [English] [Metric] ----------
YEARDOY CST Wind
Spd
kts 		Wind
Gust
kts 		Peak
Wind
kts 		Wind
Dir
deg 		Air
Tmp
F 		Wind
Chill
F 		Dew
Pt
F 		Rel
Hum
%
20260211600 19.4 21.6 25.5 259 28.0 14.1 15.9 60.1
20260211500 23.1 25.7 28.0 256 27.0 11.5 17.0 65.8
20260211400 24.3 27.6 32.5 269 27.5 11.9 19.1 70.5
20260211300 22.2 25.9 28.6 263 28.9 14.5 19.1 66.4
20260211200 16.5 17.5 26.8 243 30.2 17.9 19.1 63.1
20260211100 16.1 18.5 23.7 271 29.7 17.4 19.3 65.1
20260211000 14.6 15.6 20.6 265 29.5 17.7 20.5 68.8
20260210900 12.4 15.6 20.0 260 29.1 18.2 22.6 76.5
20260210800 13.6 17.7 17.7 248 28.8 17.2 23.2 79.3
20260210700 18.5 22.9 24.3 238 28.9 15.6 21.0 72.0
20260210600 19.8 21.8 31.1 205 29.3 15.6 16.4 58.2
20260210500 22.9 26.4 27.8 205 28.8 14.0 18.1 64.1
20260210400 27.6 32.5 36.0 198 29.1 13.3 16.2 58.1
20260210300 18.3 20.8 33.0 190 25.5 11.2 20.6 81.4
20260210200 11.9 15.0 24.5 174 24.8 13.0 18.4 76.5
20260210100 21.2 24.5 24.5 190 24.3 8.5 15.7 69.6
20260210000 21.0 23.3 23.7 201 23.7 7.9 16.4 73.2
20260202300 19.4 20.8 28.4 194 24.8 9.8 8.9 50.6
Note: Peak wind is max wind gust during entire hour
Note: Wind chill is set to -99 if air temp > 40 F or wind speed < 3 mph

      right arrow Click here for recent 2-minute daily data: 20260121.04t.txt.txt, data format (metadata)
      right arrow Click here for past data: 2026 | Archive

The NDBC station ID for this station is: CHII2
Access current marine observations on your mobile device. See NDBC's mobile access page.
These data are also available from NDBC website and NDBC's Dial-a-Buoy Program.
See also NWS Marine Forecast for this area, and NWS Recreational Beach Forecast

Realtime Data Disclaimer
Special thanks to City of Chicago, IL / Water Department, USACE


Additional Great Lakes Meteorological Observations

» NWS, Grand Rapids Office: Near-Realtime Marine Weather, includes current conditions and forecasts
» NWS, White Lake Office: Near-Realtime Marine Weather, includes current conditions and forecasts
» NDBC Great Lakes ImageMap showing U.S. and Canadian Buoys and C-MAN Stations
» NOAA CoastWatch Great Lakes NOAAPORT Data, includes all station types
» NOAA's NowCoast: Web mapping portal to real-time coastal observations
» Winds courtesy of iWindsurf.com
» NWS Great Lakes Marine Text Forecasts by Zone
» Links to Great Lakes Water Temperature, Wind/Wave Data, & Water Levels
» GLIN: Great Lakes Information Network

Contact:
General Information & Media Inquiries:
oar.glerl.www@noaa.gov
(734) 741-2235 		Data Inquiries:
oar.glerl.data@noaa.gov