Baltimore, Maryland – Temperatures will surge into the lower 90s by Thursday afternoon, bringing a rapid shift to summerlike heat that will be felt immediately across Maryland during the late-week stretch.
According to the National Weather Service and NOAA’s Climate Prediction Center, Maryland is in one of the highest confidence zones nationwide, with an 80 to 90 percent probability of above-normal temperatures from April 16 through April 20. A strong heat dome centered over the Mid-Atlantic will suppress rainfall and allow heat to intensify daily.
In Baltimore and across Baltimore County, Anne Arundel, and Howard counties, highs are expected to reach 88 to 91°F between 2 p.m. and 6 p.m., with overnight lows holding in the upper 60s. Along the I-95 corridor from Washington, D.C. to northeastern Maryland, dry air and prolonged sunshine will accelerate the drying of vegetation, increasing fire risk in wooded and suburban areas.
Washington suburbs including Silver Spring and Bethesda will see similar conditions, while western Maryland cities like Hagerstown could reach the upper 80s with notably dry air. Along the Eastern Shore, including Salisbury and Ocean City, temperatures will reach the mid to upper 80s with slight coastal moderation but no meaningful rainfall.
The precipitation outlook shows a 33 to 50 percent chance of below-normal rainfall, reinforcing dry ground conditions and increasing the likelihood of brush fires. Local officials may evaluate burn restrictions if conditions persist.
Residents should avoid outdoor burning, stay hydrated, and limit activity during peak afternoon heat. Drivers should be alert for heat-related vehicle strain, especially during heavy traffic along I-695 and I-270.
The most intense heat is expected April 18 through April 20, when the core of the “much above normal” zone settles over Maryland and the broader Mid-Atlantic. Additional advisories are likely as hot, dry conditions continue into early next week.
