Temperatures are forecast to reach the lower 90s in downtown Baltimore on Tuesday with increasing humidity throughout the day and a chance of thunderstorms.
Clouds and a 40 percent chance of storms are expected. Dew points are forecast in the upper 60s, an uncomfortable level.
Gusty winds are also in the forecast, with 15-20 mph breezes possible in the afternoon.
Wednesday, more of the same is expected, with a 50 percent chance of storms, highs around 90 and high humidity.
Thursday, the moisture is forecast to move out ahead of the Labor Day weekend. Highs are forecast in the upper 80s under partly cloudy skies through Saturday.