National Weather Service

News Headlines

This week is Severe Weather Preparedness Week in Illinois! Click here for more details and safety info!
February 2026 and Meteorological Winter 2025-26 Climate Summaries
Spring Seminars and Virtual Spotter Training: Click Here for More Information!
Spring Flood Outlook: Below average to near average flood risk for area river basins

Hazardous Weather Conditions

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Fog/Mist

46°F

8°C

Humidity	96%
Wind Speed	Calm
Barometer	29.98 in (1015.8 mb)
Dewpoint	45°F (7°C)
Visibility	6.00 mi
Last update	5 Mar 12:53 pm CST

More Information:

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

Extended Forecast for

3 Miles ENE Chicago IL

Dense Fog Advisory March 5, 01:26pm until March 5, 03:00pm

Click here for hazard details and duration

Dense Fog Advisory

Dense Fog Advisory March 5, 01:26pm until March 5, 03:00pm
NOW until 3:00pm Thu
Dense Fog Advisory
This Afternoon
High: 44 °F
Slight Chance
Showers and
Areas Dense
Fog
Tonight
Low: 38 °F
Fog
Friday
High: 68 °F
Showers
Likely and
Fog then
Chance
T-storms and
Patchy Fog
Friday Night
Low: 60 °F
Breezy.
Slight Chance
T-storms then
Showers
Saturday
High: 61 °F
Breezy.
Chance
Showers then
Partly Sunny
Saturday Night
Low: 39 °F
Partly Cloudy
Sunday
High: 61 °F
Sunny
Sunday Night
Low: 48 °F
Mostly Clear

Detailed Forecast

This Afternoon

A 20 percent chance of showers before 2pm. Areas of dense fog. Otherwise, cloudy, with a high near 44. North wind around 5 mph.

Tonight

Widespread fog, mainly after 9pm. Otherwise, cloudy, with a low around 38. Northeast wind around 5 mph becoming southeast after midnight.

Friday

Showers and thunderstorms likely, mainly before noon. Widespread fog, mainly before 9am. Otherwise, mostly cloudy, with a high near 68. Southeast wind 5 to 15 mph becoming south southwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night

A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 60. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%.

Saturday

A chance of showers and thunderstorms before 9am, then a slight chance of showers between 9am and noon. Mostly cloudy, with a high near 61. Breezy, with a southwest wind 10 to 20 mph becoming west northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 40%.

Saturday Night

Partly cloudy, with a low around 39.

Sunday

Sunny, with a high near 61.

Sunday Night

Mostly clear, with a low around 48.

Monday

Sunny, with a high near 70.

Monday Night

Partly cloudy, with a low around 47.

Tuesday

Showers likely. Partly sunny, with a high near 70.