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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 3:32 pm CDT on 07/24/2025 (DOY 205 20:32 GMT)
(Updated every 15 minutes)
Wind Speed:   23.3 kts   (12.0 m/s)
Max Wind Speed:   27.2 kts   (14.0 m/s)
Wind Direction:   249° (WSW)
Air Temperature:   77.5 °F   (25.3 °C)
Dew Point:   78.6 °F   (25.9 °C)
Relative Humidity:   103.6 %
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
%
20252051500 12.4 14.8 44.5 044 87.1 83.8 89.8
20252051400 12.6 15.0 28.8 226 96.4 81.6 61.8
20252051300 8.9 10.5 25.1 220 95.4 82.3 65.5
20252051200 10.7 11.7 20.0 227 93.7 82.0 68.3
20252051100 15.0 15.7 18.5 215 91.8 82.9 75.0
20252051000 18.1 19.6 22.9 214 90.1 83.6 80.9
20252050900 17.5 21.2 29.4 232 90.5 82.5 77.0
20252050800 23.5 26.6 27.0 210 89.1 83.0 82.1
20252050700 22.6 25.3 28.0 209 86.4 84.1 92.9
20252050600 20.8 22.0 26.6 208 86.2 85.1 96.6
20252050500 18.5 19.2 24.5 202 86.4 85.7 98.0
20252050400 19.8 24.5 29.2 213 87.3 86.2 96.7
20252050300 18.3 20.8 25.7 205 88.2 86.0 93.3
20252050200 19.8 21.8 24.7 215 89.1 86.1 90.7
20252050100 20.2 23.9 30.1 209 89.4 86.6 91.1
20252050000 27.4 30.1 31.3 206 89.6 87.3 92.7
20252042300 23.9 25.9 32.9 198 90.0 87.7 92.9
20252042200 22.7 24.5 26.0 188 91.0 88.0 90.5
Note: Peak wind is max wind gust during entire hour

      right arrow Click here for recent 2-minute daily data: 20250724.04t.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