Summer is turning up the heat across Southeast Michigan, with increasingly hot and humid conditions arriving today ahead of what could become one of the hottest stretches of the season. Temperatures will climb to around 90 degrees this afternoon, but the humidity will make it feel even hotter. Peak heat index values are expected to reach the mid to upper 90s, making outdoor activities more uncomfortable and increasing the risk of heat-related illnesses.
A 4Warn Weather Alert will be in effect Tuesday through Friday as dangerous heat settles over the region. An Extreme Heat Watch has been issued for Tuesday through Thursday, when afternoon high temperatures are forecast to soar close to 100 degrees. Combined with oppressive humidity, heat index values will exceed 105 degrees each afternoon, creating potentially dangerous conditions for anyone spending extended time outdoors. Adding to the concern, there will be very little overnight relief. Low temperatures will only fall into the mid-70s, making it difficult for homes without air conditioning to cool down and increasing the cumulative impacts of the prolonged heat. Residents are encouraged to stay hydrated, limit strenuous outdoor activities during the hottest part of the day, wear lightweight clothing, and check on elderly neighbors, young children, and pets. Never leave children or animals unattended inside a vehicle, even for a few minutes.
The last time Metro Detroit officially reached 100°F or higher was during the July 2012 heat wave. Here are the most recent 100-degree days at DTW:
- July 17, 2012: 102°F (most recent 100°+ day)
- July 7, 2012: 100°F
- July 4, 2012: 102°F
The hot and humid pattern is expected to continue into Friday and the holiday weekend. While temperatures will remain well above average, there will also be periodic for showers and thunderstorms that could provide brief relief from the heat, although humidity levels are expected to remain elevated. Be sure to stay updated on the latest forecast and any heat-related advisories as this prolonged stretch of dangerous summer weather unfolds.