06/08/2026
Temperatures will be on the rise by the middle of this upcoming week. Highs of 85 to 90 coupled with very high humidity will send heat index readings well into the 90s to potentially near 100 away from and outside of any thunderstorms that develop. The Heat Risk map shows Thursday's heat potential, with moderate to major heat impacts possible, impacting especially heat-sensitive individuals. If storm chances increase, widespread heat impacts would be lessened, so monitor the latest forecast information.
US National Weather Service Grand Rapids Michigan