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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 1:36 pm CDT on 06/17/2025 (DOY 168 18:36 GMT)
(Updated every 15 minutes)
Wind Speed:   12.1 kts   (6.2 m/s)
Max Wind Speed:   15.7 kts   (8.1 m/s)
Wind Direction:   241° (WSW)
Air Temperature:   88.0 °F   (31.1 °C)
Dew Point:   71.8 °F   (22.1 °C)
Relative Humidity:   58.1 %
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 CDT Wind
Spd
kts 		Wind
Gust
kts 		Peak
Wind
kts 		Wind
Dir
deg 		Air
Tmp
F 		Dew
Pt
F 		Rel
Hum
%
20251681300 20.6 23.5 26.0 210 87.4 72.3 60.3
20251681200 15.9 17.9 27.8 217 86.9 72.5 61.6
20251681100 19.2 21.4 26.8 217 84.6 72.2 65.9
20251681000 17.9 21.2 25.9 227 82.6 73.4 73.3
20251680900 12.1 14.4 21.0 197 78.4 73.9 85.8
20251680800 15.4 15.9 16.3 199 77.2 74.5 91.3
20251680700 20.0 20.6 22.6 220 75.7 75.0 97.5
20251680600 12.6 14.2 21.6 199 74.5 74.5 100.2
20251680500 13.8 16.1 18.1 208 75.7 74.9 97.2
20251680400 11.9 12.2 17.7 191 74.5 74.2 99.1
20251680300 12.6 13.4 15.0 204 76.1 73.2 90.5
20251680200 13.2 14.0 15.0 194 75.4 69.7 82.2
20251680100 9.3 9.7 14.2 179 70.2 67.0 89.4
20251680000 7.2 7.4 9.1 170 71.4 65.6 81.7
20251672300 8.2 9.5 9.5 188 72.5 65.2 77.6
20251672200 11.3 12.6 20.4 131 69.1 65.8 89.2
20251672100 8.0 8.9 18.7 185 67.8 66.6 95.8
20251672000 18.3 19.2 22.7 096 72.5 64.0 74.3
Note: Peak wind is max wind gust during entire hour

      right arrow Click here for recent 2-minute daily data: 20250617.04t.txt.txt, data format (metadata)
      right arrow Click here for past data: 2025 | 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