Chicago, IL



National Weather Service: Flood Warning , Flash Flood Watch, Flood Advisory

Current conditions | Hour by hour

75 °F

Overcast

  • Feels Like: 75 °F
  • Humidity: 79%
  • Wind: 9 mph NE
Overcast
  • Sunrise 5:34 AM
  • Sunset: 8:20 PM
  • Barometer: 29.95 in

Afternoon

Mostly Cloudy
85°
Mostly Cloudy

Afternoon

Mostly Cloudy
87°
Mostly Cloudy

This week

Overcast
  • Saturday
  • Hi 87° Lo 70°
  • Overcast
Partly Cloudy
  • Sunday
  • Hi 88° Lo 65°
  • Partly Cloudy
Clear
  • Monday
  • Hi 77° Lo 63°
  • Clear
Clear
  • Tuesday
  • Hi 83° Lo 67°
  • Clear


Guides

Tides

Sun & moon

  • Sunrise: 5:34 AM
  • Moon Rise: 3:43 AM
  • Sunset: 8:20 PM
  • Moon Set: 6:45 PM

Jul. 21

Jul. 23

Jul. 30

Aug. 07

As of: 6:51 AM CDT on July 21, 2017
  • Friday... Areas of patchy fog early. Cloudy this morning followed by isolated thunderstorms this afternoon. High 89F. Winds ESE at 5 to 10 mph. Chance of rain 30%.
  • Friday Night... Scattered thunderstorms this evening becoming more widespread overnight. A few storms may be severe. Low around 75F. Winds SSW at 10 to 15 mph. Chance of rain 80%.
  • Saturday... Overcast. A stray shower or thunderstorm is possible. High 87F. Winds W at 10 to 15 mph.
  • Saturday Night... Partly cloudy. Low near 70F. Winds NW at 10 to 15 mph.
  • Sunday... Partly cloudy. A stray shower or thunderstorm is possible. High 88F. Winds WNW at 10 to 15 mph.

Daily summary


Almanac | Key: T = Trace of precipitation; MM = data not available
July 21, 2017
Normal high:84° Record high:103° (1901)
Normal low:64° Record low:51° (1970)
Complete weather almanac

Flood Warning

  • Statement as of 9:26 PM CDT on July 20, 2017


    The Flood Warning continues for
    the Des Plaines river at Riverside.
    * Until Saturday evening.
    * At 845 PM Thursday the stage was 7.6 feet.
    * Flood stage is 7.0 feet.
    * Minor flooding is occurring and minor flooding is forecast.
    * Forecast... the river will continue rising to near 7.7 feet by
    Friday morning. The river will fall below flood stage Saturday
    afternoon.
    * Impact... at 7.5 feet... park areas are inundated near Salt Creek.


    Lat... Lon 4187 8777 4183 8776 4174 8780 4178 8791
          4184 8786 4186 8787



    926 PM CDT Thu Jul 20 2017

    The Flood Warning continues for
    the Des Plaines river near Des Plaines.
    * Until Monday afternoon.
    * At 845 PM Thursday the stage was 18.2 feet.
    * Flood stage is 15.0 feet.
    * Recent activity... gage datum was changed by 10 feet on Nov 14 2014.
    Flood thresholds and flood impacts are now 10 feet higher than
    previous values.
    * Moderate flooding is occurring and moderate flooding is forecast.
    * Forecast... the river will continue to rise near 18.2 feet by early
    Friday. The river will fall below flood stage by late Monday
    morning.
    * Impact... at 18.5 feet... flood waters affect residential areas of Big
    Bend drive, Mason Lane, River Road, and Howard.


    Lat... Lon 4212 8784 4196 8780 4196 8790 4212 8794





Flash Flood Watch, Flood Advisory

  • Statement as of 4:16 am CDT on July 21, 2017


    ... Flash Flood Watch remains in effect from 4 PM CDT this
    afternoon through Saturday morning...

    The Flash Flood Watch continues for

    * portions of north central Illinois and northeast Illinois,
    including the following areas, in north central Illinois,
    Boone, De Kalb, La Salle, Lee, Ogle, and Winnebago. In
    northeast Illinois, Cook, dupage, Grundy, Kane, Kendall, Lake
    IL, McHenry, and will.

    * From 4 PM CDT this afternoon through Saturday morning.

    * Multiple rounds of thunderstorms producing heavy rainfall with
    rates well over one inch per hour are likely to move across
    portions of north central and northeast Illinois late Friday
    afternoon through early Saturday morning.

    * Additional heavy rainfall could exacerbate flooding already
    occurring across portions of northern Illinois... producing new
    rises on area rivers and creeks. With the ground already
    saturated in many areas... heavy rainfall will likely quickly
    produce runoff and produce flash flooding.

    Precautionary/preparedness actions...

    A Flash Flood Watch means that conditions may develop that lead
    to flash flooding. Flash flooding is a very dangerous situation.

    You should monitor later forecasts and be prepared to take action
    should flash flood warnings be issued.



    Ratzer


    931 PM CDT Thu Jul 20 2017

    The flood advisory continues for
    the Des Plaines river at River Forest
    * until Monday morning.
    * At 900 PM Thursday the stage was 15.3 feet.
    * Action stage is 13.0 feet.
    * Flood stage is 16.0 feet.
    * Forecast... the river will rise to near 15.4 feet by early Friday.


    Lat... Lon 4196 8790 4197 8780 4187 8777 4186 8787





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