Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Fair

79°F

26°C

Humidity	54%
Wind Speed	SW 8 mph
Barometer	30.13 in (1020.0 mb)
Dewpoint	61°F (16°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	29 Aug 12:52 pm CDT

More Information:

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

Extended Forecast for

Lake Forest IL

This Afternoon
High: 80 °F
Slight Chance
Showers
Tonight
Low: 69 °F
Slight Chance
Showers
Sunday
High: 87 °F
Chance
Showers then
Partly Sunny
Sunday Night
Low: 72 °F
Mostly Cloudy
then Slight
Chance
Showers
Monday
High: 88 °F
Partly Sunny
Monday Night
Low: 74 °F
Partly Cloudy
Tuesday
High: 89 °F
Slight Chance
Showers
Tuesday Night
Low: 72 °F
Partly Cloudy
Wednesday
High: 88 °F
Mostly Sunny

Detailed Forecast

This Afternoon

A slight chance of sprinkles between 3pm and 4pm, then a slight chance of showers after 4pm. Mostly cloudy, with a high near 80. South southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Tonight

A slight chance of showers or sprinkles before 8pm, then a slight chance of showers after 3am. Mostly cloudy, with a low around 69. South wind 10 to 15 mph. Chance of precipitation is 20%.

Sunday

A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and noon. Partly sunny, with a high near 87. South southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

Sunday Night

A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 72. South southwest wind 5 to 10 mph.

Monday

Partly sunny, with a high near 88. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

Monday Night

Partly cloudy, with a low around 74.

Tuesday

A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 89.

Tuesday Night

Partly cloudy, with a low around 72.

Wednesday

Mostly sunny, with a high near 88.