National Weather Service Weather Forecast Office

Hourly weather conditions in Illinois and surrounding states

Chicago Area Weather Roundup (Added 12/22/2009)
Illinois State Weather Roundup
Indiana State Weather Roundup
Wisconsin State Weather Roundup
Michigan State Weather Roundup
Iowa State Weather Roundup

Hourly marine weather conditions

6 Hour Snowfall Amounts from Chicago OHare, Rockford, and NWS Chicago in Romeoville 

24 hour Summaries and Current Conditions:
The following links will take you to the NWS Internet Weather Source site.
http://weather.noaa.gov/

• Chicago O'Hare International
• Chicago Midway
• West Chicago/DuPage County
• Wheeling/Palwaukee
• Aurora/Sugar Grove
• Waukegan
• Gary Indiana
• Valparaiso Indiana
• Rockford/Greater Rockford Airport
• Sterling-Rock Falls/Whiteside County Regional

Temperature and/or Precipitation Data from the Public

• Regional Temperature and Precipitation Data from our COOP Observers
• Precipitation Data from our CoCoRah Observers

Web Camera views of Lake Michigan

• Muskegon Harbor
• Chicago's Harrison-Dever Crib

Surface Maps

Latest Surface Analysis

Current Satellite/Surface Analysis