Baltimore, MD – A migrating heat dome is set to push temperatures into the mid to upper 80s across Maryland within days, bringing early-season heat and repeated storm chances that could disrupt travel through the first full week of April.
According to the National Weather Service Climate Prediction Center, a 70 to 80 percent probability of above-normal temperatures will dominate Maryland from April 3 through April 9 as strong high pressure builds along the East Coast. Highs in Baltimore, Annapolis, and along the I-95 corridor are expected to run 10 to 20 degrees above average, with warm overnight lows limiting cooling.
The heat dome expands across the Mid-Atlantic and Southeast, where temperatures may climb into the 90s farther south. Maryland sits along the northern edge of this system, where humidity and daytime heating will fuel repeated rounds of showers and thunderstorms.
Rain chances increase statewide, especially during afternoon and evening hours. Periods of heavier rain could impact major routes including I-95, I-70, and I-83, leading to reduced visibility and ponding on roadways during peak travel times.
Residents are urged to stay hydrated, limit outdoor activity during peak heat, and avoid driving through flooded roadways.
This pattern is expected to persist through April 9, with additional advisories likely as storm timing and rainfall totals become more defined.
