Headline:
Heat Advisory issued September 3 at 1:08AM CDT until September 3 at 7:00PM CDT by NWS Chicago IL
Event:
Heat Advisory
Urgency:
Expected
Effective:
September 2, 2026 - 11:08pm
Expires:
September 3, 2026 - 9:15am
Description:
* WHAT...Heat index values of 100 to 105 expected. This is the third
day in a row with forecast or observed heat indices above 100
degrees.
* WHERE...Boone, DuPage, Kane, and McHenry Counties.
* WHEN...Until 7 PM CDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses especially after several days of dangerous heat.
* ADDITIONAL DETAILS...A cold front possibly accompanied by
thunderstorms will move inland from Lake Michigan this evening
leading to rapidly improving conditions.
Instruction:
Consider altering outdoor plans. If outdoors for prolonged periods of
time, wear lightweight and loose fitting clothing. Take action when
you see symptoms of heat exhaustion and heat stroke.
Area Description:
Boone; McHenry; Kane; DuPage
Forcast Office:
NWS Chicago IL
Sender:
w-nws.webmaster@noaa.gov