Michigan Severe Extreme Heat Warning | Effective 06/30/2026 12:00

Headline: 
Extreme Heat Warning issued June 30 at 3:00PM EDT until July 2 at 8:00PM EDT by NWS Grand Rapids MI
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
June 30, 2026 - 12:00pm
Expires: 
July 1, 2026 - 1:00am
Description: 
* WHAT...Dangerously hot conditions with heat index values up to 105. * WHERE...Portions of central, south central, southwest, and west central Michigan. * WHEN...Until 8 PM EDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
Instruction: 
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Area Description: 
Mason; Lake; Osceola; Clare; Oceana; Newaygo; Mecosta; Isabella; Muskegon; Montcalm; Gratiot; Ottawa; Kent; Ionia; Clinton; Allegan; Barry; Eaton; Ingham; Van Buren; Kalamazoo; Calhoun; Jackson
Forcast Office: 
NWS Grand Rapids MI