Grand Rapids, Michigan – Scorching heat and elevated ozone levels will impact western Michigan through Saturday, bringing 90°F+ temperatures and hazardous air quality conditions. With high humidity and a potential risk of thunderstorms, outdoor activities will be affected, especially for sensitive individuals. Residents should take precautions to stay safe during this hot and hazy weekend.
Air Quality Advisory and Ozone Pollution
The Michigan Department of Environment, Great Lakes, and Energy (EGLE) has issued an Air Quality Advisory for Kent, Ottawa, Muskegon, Allegan, and Van Buren counties, warning of ground-level ozone pollution. This could reach levels that are unhealthy for sensitive groups, particularly those with respiratory conditions such as asthma. The advisory will remain in effect until Saturday evening.
Residents are advised to limit outdoor activities, particularly during peak ozone hours, and avoid refueling vehicles or using gas-powered lawn equipment. Sensitive individuals should stay indoors as much as possible.
Hot and Humid Saturday Forecast
According to the National Weather Service in Grand Rapids, temperatures will reach the low to mid-90s, with a heat index approaching 95°F on Saturday. High humidity will make it feel even hotter. Be mindful of the potential risks of heat-related illness.
A 30% chance of thunderstorms will develop, mainly in the afternoon and primarily east of U.S.-131. While storms may remain scattered, lightning poses a serious threat, so anyone outdoors should take shelter if storms develop.
Swimming and Lakeshore Conditions
For those heading to lakeshore areas, swim risks will be moderate to high, both Saturday and Sunday, due to strong currents. Swimmers should exercise caution, check for beach warnings, and be aware of hazardous conditions in the water.
Outlook for Sunday and Beyond
Looking ahead, Sunday brings a 40% chance of storms with humidity still in place. The heat continues with highs around 86°F, and storms may affect the area in the afternoon.
Starting Monday, expect mostly sunny skies with highs of 86°F, while Tuesday will bring another round of heat, with Grand Rapids reaching near 90°F, continuing the streak of oppressive temperatures.
Five-Day Forecast for Grand Rapids, MI
Saturday (July 5): Partly sunny, 93°F, 30% chance of afternoon storms
Sunday (July 6): 86°F, 40% chance of storms, humid
Monday (July 7): Mostly sunny, 86°F
Tuesday (July 8): Sunny and hot, near 90°F
Wednesday (July 9): Mostly sunny, high near 86°F
Saturday’s weather will bring high temperatures and poor air quality, especially for sensitive individuals. The ozone advisory and heat index make it important to limit outdoor activity and stay hydrated. Thunderstorms could provide some relief in the afternoon, but with the potential for lightning, it’s crucial to stay weather-aware. For the lakeshore, swimmers should be cautious due to strong currents. The hot weather will continue through the weekend, with temperatures remaining high into the start of next week.
