Extreme Heat and Fire Weather Conditions in the West; Severe Thunderstorm Threat in the Northern Plains on Thursday

Extreme heat will may set some new daily temperature records across the Desert Southwest. Hot, dry and windy conditions and dry thunderstorms continue to bring fire weather concerns for portions of the Desert Southwest, the central Great Basin and Rockies. Severe thunderstorms and heavy rain are expected across the Northern Plains late Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago, Chicago Midway Airport (KMDW)

Lat: 41.78°NLon: 87.76°WElev: 617ft.

Overcast

78°F

26°C

Humidity	67%
Wind Speed	S 7 mph
Barometer	30.17 in (1020.6 mb)
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	7 Aug 3:53 am CDT

More Information:

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

Extended Forecast for

Lyons IL

Today
High: 90 °F
Mostly Sunny
then Slight
Chance
T-storms
Tonight
Low: 73 °F
Chance
T-storms
Friday
High: 91 °F
Slight Chance
T-storms
Friday Night
Low: 76 °F
Mostly Clear
Saturday
High: 93 °F
Sunny
Saturday Night
Low: 76 °F
Partly Cloudy
then Slight
Chance
T-storms
Sunday
High: 90 °F
Chance
T-storms
Sunday Night
Low: 73 °F
Chance
T-storms
Monday
High: 87 °F
Chance
Showers then
Chance
T-storms

Detailed Forecast

Today

A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. South wind 5 to 10 mph.

Tonight

A 40 percent chance of showers and thunderstorms, mainly after 9pm. Mostly cloudy, with a low around 73. South wind 5 to 10 mph.

Friday

A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 91. Heat index values as high as 98. South wind 5 to 15 mph, with gusts as high as 20 mph.

Friday Night

Mostly clear, with a low around 76. South wind around 10 mph, with gusts as high as 15 mph.

Saturday

Sunny, with a high near 93. South wind 10 to 15 mph, with gusts as high as 20 mph.

Saturday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76.

Sunday

A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 90.

Sunday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 73.

Monday

A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 87.