Baltimore, Maryland – Spring break travelers moving through Maryland could encounter a late-season freeze as overnight temperatures drop near 27°F between March 16 and March 20, creating frosty early-morning conditions just days before the official start of spring.
According to the National Oceanic and Atmospheric Administration (NOAA), a broad portion of the eastern United States—from Minnesota down to East Texas and east to the Atlantic coast—shows a 60–70% probability of below-normal temperatures during that period. The Mid-Atlantic region, including Maryland, sits within the colder core of this air mass.
Cities including Baltimore, Frederick, and Hagerstown may see overnight temperatures falling to around 27°F, particularly during clear nights when winds relax and heat escapes quickly after sunset.
Daytime highs may recover into the upper 30s and mid-40s, but those readings will still run several degrees below typical mid-March averages.
Drivers traveling along Interstate 95, Interstate 70, and Interstate 83 during spring break should watch for patchy frost on bridges, ramps, and elevated roadways during early morning hours, especially before sunrise.
Along the Chesapeake Bay, Annapolis and coastal communities along U.S. Route 50 may stay slightly milder, though brisk winds off the water could still make temperatures feel colder during the early morning commute.
The colder pattern may persist through March 20, and additional advisories could follow if overnight temperatures continue dipping toward the upper 20s across Maryland during the first official week of spring.
