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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 11:36 am CDT on 05/21/2026 (DOY 141 16:36 GMT)
(Updated every 15 minutes)
Wind Speed:   13.6 kts   (7.0 m/s)
Max Wind Speed:   15.2 kts   (7.8 m/s)
Wind Direction:   4° (N)
Air Temperature:   48.0 °F   (8.9 °C)
Dew Point:   44.5 °F   (6.9 °C)
Relative Humidity:   87.3 %
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
%
20261411100 13.6 14.2 17.3 007 48.9 44.9 85.8
20261411000 8.0 8.6 14.8 007 49.6 45.0 84.0
20261410900 13.0 14.0 14.0 047 48.6 43.5 82.3
20261410800 15.6 16.3 17.3 046 48.9 42.6 78.7
20261410700 15.2 16.5 18.5 047 49.3 42.3 76.5
20261410600 11.7 12.8 17.7 031 49.6 40.7 70.9
20261410500 19.6 21.0 21.0 054 50.4 39.5 65.9
20261410400 20.4 23.7 24.7 051 50.7 39.5 65.1
20261410300 22.4 24.3 24.9 050 51.1 37.4 59.2
20261410200 20.2 22.7 25.9 041 51.4 38.1 59.9
20261410100 23.7 26.2 26.2 052 52.3 37.4 56.4
20261410000 16.3 17.9 26.6 044 51.1 40.2 66.1
20261402300 13.0 14.6 20.6 019 49.8 37.5 62.2
20261402200 17.5 19.1 19.1 015 50.2 36.3 58.6
20261402100 18.7 20.2 23.3 015 50.7 35.7 56.1
20261402000 18.1 20.2 22.0 006 50.2 37.4 61.1
20261401900 17.9 20.0 22.2 011 51.1 37.4 59.2
20261401800 18.3 20.6 21.4 017 51.3 38.9 62.4
Note: Peak wind is max wind gust during entire hour

      right arrow Click here for recent 2-minute daily data: 20260521.04t.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