A heat advisory is in effect on Friday, as well as an air quality alert for Baltimore, as the heat index is expected to be around 100 degrees.
The forecast calls for high humidly and temperatures in the low to mid-90s today, according to the National Weather Service. The heat advisory is in effect from noon until 8 p.m. tonight.
Officials advise those who work outside to take extra precautions to stay cool to avoid heat exhaustion and heat stroke. Those who must be outside today should wear light clothing, drink plenty of water, and try to stay in the shade. Officials said strenuous activities should be rescheduled to the early morning of evening.
The Maryland Department of the Environment has issued a "Code Orange" alert today, which means that the air pollution concentrations might effect the elderly, children, those with heart disease, asthma or other lung diseases. The main concern is ozone, a pollutant created by reactions between chemicals emitted by cars and industrial facilities. On hot, sunny days, it can contribute to smog and reduce lung function and irritate lung tissue.
Those outside may have some relief from wind gusts that are expected to reach up to 20 mph.
Forecasts call for a chance of isolated thunderstorms after 3 p.m. into the evening. The overnight low is not expected to drop below the mid 70s.
The heat will continue over the weekend. Saturday's high is expected to reach the low-90s, with more thunderstorms possible beginning after 9 a.m.
Sunday will be sunny with highs in the upper-80s.