Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Thunderstorm Heavy Rain Fog/Mist

69°F

21°C

Humidity	96%
Wind Speed	W 8 mph
Barometer	29.90 in (1011.9 mb)
Dewpoint	68°F (20°C)
Visibility	1.00 mi
Last update	20 Sep 4:53 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Chicago IL

Flood Watch September 20, 04:59am until September 20, 01:00pm

Flood Advisory until September 20, 08:00am

Click here for hazard details and duration

Flood Watch

Flood Advisory

Flood Watch September 20, 04:59am until September 20, 01:00pm
Flood Advisory until September 20, 08:00am
NOW: Multiple hazards in effect
Click HERE for Details
Overnight
Low: 67 °F
Heavy Rain
and Patchy
Fog
Sunday
High: 69 °F
Heavy Rain
and Patchy
Fog then
Showers
Likely
Sunday Night
Low: 58 °F
Chance
Showers
Monday
High: 65 °F
Chance
Showers
Monday Night
Low: 56 °F
Mostly Cloudy
then Slight
Chance
Showers
Tuesday
High: 63 °F
Slight Chance
Showers
Tuesday Night
Low: 55 °F
Partly Cloudy
Wednesday
High: 64 °F
Partly Sunny

Detailed Forecast

Overnight

Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Patchy fog. Low around 67. Northeast wind around 5 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday

Showers and possibly a thunderstorm before 4pm, then a chance of showers. Some of the storms could produce heavy rainfall. Patchy fog before 10am. High near 69. Northeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Sunday Night

A chance of showers before 7pm, then a chance of showers after 2am. Cloudy, with a low around 58. East northeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

Monday

A 30 percent chance of showers, mainly before 9am. Mostly cloudy, with a high near 65. East northeast wind around 15 mph, with gusts as high as 25 mph.

Monday Night

A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 56. East northeast wind 10 to 15 mph, with gusts as high as 25 mph.

Tuesday

A 20 percent chance of showers before 1pm. Mostly cloudy, with a high near 63.

Tuesday Night

Partly cloudy, with a low around 55.

Wednesday

Partly sunny, with a high near 64.

Wednesday Night

Mostly cloudy, with a low around 55.

Thursday

Partly sunny, with a high near 65.