Extreme Heat and Severe Thunderstorms Today

Extreme heat continues today from the central Plains to the lower Mississippi River Valley, over southeast Montana, and from southern California into the Southwest Deserts. Extreme Heat Warnings remain in effect. Severe thunderstorms capable of strong to severe wind gusts and large hail are possible across the Great Lakes into the Ohio Valley today into tonight. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago / Wheeling, Pal-Waukee Airport (KPWK)

Lat: 42.12°NLon: 87.9°WElev: 646ft.

Mostly Cloudy

86°F

30°C

Humidity	77%
Wind Speed	S 14 G 23 mph
Barometer	29.81 in (1008.9 mb)
Dewpoint	78°F (26°C)
Visibility	9.00 mi
Heat Index	98°F (37°C)
Last update	27 Jul 9:52 am CDT

More Information:

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

Extended Forecast for

Forest Lake IL

Heat Advisory July 27, 10:29am until July 27, 09:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory July 27, 10:29am until July 27, 09:00pm
NOW until 9:00pm Mon
Heat Advisory
Today
High: 90 °F
Slight Chance
T-storms
Tonight
Low: 68 °F
Chance
T-storms then
Mostly Cloudy
Tuesday
High: 78 °F
Mostly Sunny
Tuesday Night
Low: 61 °F
Mostly Clear
Wednesday
High: 81 °F
Sunny
Wednesday Night
Low: 64 °F
Mostly Clear
Thursday
High: 84 °F
Mostly Sunny
Thursday Night
Low: 67 °F
Mostly Cloudy

Detailed Forecast

Today

A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. Heat index values as high as 104. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

Tonight

A 40 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 68. West northwest wind 10 to 15 mph becoming north northeast after midnight. Winds could gust as high as 25 mph.

Tuesday

Mostly sunny, with a high near 78. North northeast wind 10 to 15 mph, with gusts as high as 20 mph.

Tuesday Night

Mostly clear, with a low around 61. North northeast wind 5 to 10 mph, with gusts as high as 15 mph.

Wednesday

Sunny, with a high near 81. North northeast wind around 5 mph, with gusts as high as 10 mph.

Wednesday Night

Mostly clear, with a low around 64.

Thursday

Mostly sunny, with a high near 84.

Thursday Night

Mostly cloudy, with a low around 67.