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August 11, 2026: Derecho produces widespread wind damage and tornadoes across northern Illinois and northwest Indiana
Interactive map of preliminary storm reports from this week's severe weather and flooding
NOAA All Hazards Radio Test Postponed

Hazardous Weather Conditions

Current conditions at

Chicago / West Chicago, Dupage Airport (KDPA)

Lat: 41.9°NLon: 88.25°WElev: 758ft.

Light Rain Fog/Mist

69°F

21°C

Humidity	100%
Wind Speed	SE 3 mph
Barometer	29.91 in (1012.5 mb)
Dewpoint	69°F (21°C)
Visibility	1.25 mi
Last update	13 Aug 6:52 am CDT

More Information:

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

Extended Forecast for

South Elgin IL

Dense Fog Advisory until August 13, 09:00am

Click here for hazard details and duration

...

Dense Fog Advisory until August 13, 09:00am
NOW until 9:00am Thu
Dense Fog Advisory
Today
High: 80 °F
Areas Dense
Fog then
Showers
Likely
Tonight
Low: 66 °F
Chance
T-storms then
Showers
Likely
Friday
High: 79 °F
Showers
Likely
Friday Night
Low: 67 °F
Chance
T-storms then
Showers
Likely
Saturday
High: 83 °F
Showers
Likely
Saturday Night
Low: 71 °F
Chance
T-storms then
Showers
Likely
Sunday
High: 82 °F
Slight Chance
T-storms then
Chance
T-storms
Sunday Night
Low: 65 °F
Mostly Cloudy

Detailed Forecast

Today

A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Areas of dense fog before 10am. Otherwise, mostly cloudy, with a high near 80. East wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Showers and thunderstorms likely, mainly before 3am, then showers likely and possibly a thunderstorm after 5am. Cloudy, with a low around 66. East wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Friday

Showers and thunderstorms likely before 1pm, then a slight chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 79. East wind 5 to 10 mph, with gusts as high as 15 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 chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67. East northeast wind 5 to 10 mph. Chance of precipitation is 70%.

Saturday

Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 83. Southeast wind around 10 mph becoming south southwest in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 70%.

Saturday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.

Sunday

A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 82.

Sunday Night

Mostly cloudy, with a low around 65.

Monday

Mostly sunny, with a high near 78.

Monday Night

Mostly clear, with a low around 60.

Tuesday

Mostly sunny, with a high near 79.

Tuesday Night

A chance of showers. Partly cloudy, with a low around 62.