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

50°F

10°C

Humidity	86%
Wind Speed	Calm
Barometer	30.00 in (1016.2 mb)
Dewpoint	46°F (8°C)
Visibility	6.00 mi
Last update	5 Mar 2:53 pm CST

More Information:

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

Extended Forecast for

2 Miles NNW Chicago IL

Dense Fog Advisory March 5, 03:04pm until March 6, 06:00am

Click here for hazard details and duration

Dense Fog Advisory

Dense Fog Advisory March 5, 03:04pm until March 6, 06:00am
NOW until 6:00am Fri
Dense Fog Advisory
This Afternoon
High: 45 °F
Areas Fog
Tonight
Low: 40 °F
Fog
Friday
High: 68 °F
Showers
Likely and
Fog then
Chance
T-storms
Friday Night
Low: 60 °F
Breezy.
Slight Chance
T-storms then
Showers
Saturday
High: 61 °F
Breezy.
Chance
Showers then
Mostly Cloudy
Saturday Night
Low: 38 °F
Partly Cloudy
Sunday
High: 61 °F
Sunny
Sunday Night
Low: 48 °F
Mostly Clear

Detailed Forecast

This Afternoon

Areas of fog. Otherwise, mostly cloudy, with a high near 45. North wind around 5 mph.

Tonight

Widespread fog, mainly after 9pm. Otherwise, cloudy, with a low around 40. 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 38.

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 48.

Tuesday

Showers likely. Partly sunny, with a high near 71.