Baltimore is forecast to reach about 75°F Friday after starting near 55, with sunshine and no meaningful rain expected. A west-to-northwest breeze of 3 to 13 mph, with gusts up to 23 mph, could make waterfront walks and outdoor decorations feel blustery.
The warm day gives way to a cooler, dry Halloween weekend. Saturday is forecast mostly sunny with a high near 62°F. Halloween night should be mostly cloudy and dry, with temperatures falling to about 47°F. Sunday is expected to be mostly cloudy with a high near 65°F.
Maryland weather in a longer climate context
The National Weather Service’s Baltimore daily normals table covers the 1991–2020 period. The table warns that its displayed data contain errors and are no longer maintained.
The State Climate Summaries report that Maryland’s annual average temperature has risen more than 2.5°F since the beginning of the 20th century. That long-term change provides broader context, but it does not explain or predict the weather on any single Friday.
Area marine coverage
The Chesapeake Bay Interpretive Buoy System describes the Baltimore/Washington forecast office’s marine coverage as Maryland’s portion of the Chesapeake Bay and the Tidal Potomac River.
