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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 10:20 am CST on 01/25/2026 (DOY 025 16:20 GMT)
(Updated every 15 minutes)
Wind Speed:   18.3 kts   (9.4 m/s)
Max Wind Speed:   20.6 kts   (10.6 m/s)
Wind Direction:   37° (NE)
Air Temperature:   17.6 °F   (-8.0 °C)
Wind Chill:   0.7 °F   (-17.4 °C)
Dew Point:   12.3 °F   (-10.9 °C)
Relative Humidity:   79.5 %
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
%
20260251000 20.4 21.8 23.5 037 17.1 -0.8 11.5 78.4
20260250900 17.7 19.2 23.1 051 16.3 -0.7 11.0 79.4
20260250800 18.9 20.8 24.3 060 15.8 -1.9 11.7 83.7
20260250700 18.7 20.6 22.4 070 15.1 -2.8 12.1 87.8
20260250600 14.6 16.9 20.8 057 14.2 -2.1 12.1 91.4
20260250500 8.9 9.9 18.5 322 9.5 -4.4 7.1 90.0
20260250400 8.0 8.6 8.9 312 8.2 -5.1 5.8 89.5
20260250300 7.8 8.4 9.7 325 8.2 -4.9 5.8 89.5
20260250200 4.9 5.8 9.3 286 10.0 0.5 7.7 90.0
20260250100 7.0 8.7 9.7 131 11.3 -0.4 9.0 90.2
20260250000 9.3 10.5 12.6 130 11.1 -2.7 8.8 90.2
20260242300 2.5 4.5 10.5 054 9.9 9.9 7.4 89.6
20260242200 6.2 6.6 7.0 337 8.4 -3.1 5.9 89.2
20260242100 3.9 4.5 8.2 325 8.6 0.3 5.8 88.2
20260242000 4.5 5.1 6.2 332 8.6 -0.6 5.6 87.6
20260241900 3.3 3.9 4.7 317 8.2 1.0 4.9 86.0
20260241800 2.3 3.3 4.3 329 7.9 7.9 3.6 82.6
20260241700 2.3 3.5 4.9 318 7.7 7.7 2.3 78.2
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: 20260125.04t.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