Saturday morning, May 16, Baltimore started the weekend under clear skies and cool air, with mid-50s at dawn, before a quick warm-up that should push highs into the low 80s this afternoon. Sunny skies and a light southwest breeze are expected, with the most comfortable outdoor hours this morning and again in the early evening. If you have errands or a waterfront walk planned, the heat arrives fast, so pack water and be ready for hotter conditions by midday.
Weekend Warm-Up And Late-Night Showers
The National Weather Service forecasts a high near 83°F today and a jump to about 88°F on Sunday, May 17, with only a slight chance of an evening shower or isolated thunderstorm. Tonight will be mostly cloudy with a low around 66°F and a small (about 20%) chance of showers between roughly 9 PM and 4 AM. Humidity will build each day as winds stay from the southwest into next week, so evenings will feel noticeably milder than the recent cool mornings.
Boaters And Waterfront Plans
Southerly channeling across the bay will raise winds and chop this afternoon, and small craft conditions are possible on parts of the Chesapeake from early afternoon into the evening. Recreational boaters should secure loose gear and consider postponing nonessential trips. Nearshore areas and the lower Potomac may see the gustiest conditions during the afternoon wind surge.
Near-Record Heat Early Next Week And A Midweek Storm Risk
Monday, May 18, and Tuesday, May 19, are forecast to run hot and humid with highs climbing into the low to mid 90s, and records could be challenged at several area stations. A strong cold front is expected to approach on Wednesday, May 20, raising the chance for showers and thunderstorms. Some storms could be strong or severe with gusty winds and heavy downpours. Plan outdoor activities for the mornings on those days and have an indoor backup for the afternoon and evening.
Staying Safe
Stay hydrated, avoid strenuous activity during peak heat hours, and check on neighbors and people without air conditioning. If Baltimore City declares a Code Red extreme heat alert, cooling centers will open. See the Mayor's Office of Homeless Services for locations and hours.
