Philadelphia rolled out of bed to honest-to-goodness spring weather Tuesday morning, with official readings near 61°F and a light southwest breeze. That southwest flow will crank the thermostat in a hurry today, with a high near 87°F this afternoon before the mercury makes a run into the low 90s on Wednesday and Thursday. For many neighborhoods it will be the first real 90-degree stretch since last fall and it will feel like summer in the sun. Northern suburbs should keep a closer eye on the sky this evening, since scattered storms are possible and a few could kick out some strong gusts.
Afternoon Storm Risk
Scattered showers and isolated thunderstorms are on the table Tuesday afternoon and evening, mainly north and west of the I-95 corridor, with the greatest threat from the Lehigh Valley into the Poconos. A few storms may clump together and bring damaging wind gusts from late afternoon into early evening. That timing and the focused risk zone are highlighted by the National Weather Service.
Hot Midweek Outlook
Temperatures peak near 87°F today, then climb to about 91°F on Wednesday and around 90°F on Thursday, putting some record highs within reach at official reporting sites. Coastal neighborhoods will stay noticeably cooler thanks to a sea breeze, while the urban core and inland suburbs take the brunt of the heat. Aside from the chance of late-day storms north and west of I-95, conditions look mainly dry through much of the week.
Commute And Outdoor Plans
Southwest winds pick up to 10 to 15 mph this afternoon, with gusts near 20 to 25 mph. It could be gustier near any thunderstorms, so it is a good idea to secure lightweight outdoor items before you head out. On the water, seas run around 2 to 4 feet and no marine headlines are expected at this time. If you have outdoor plans north of I-95, keep an eye on radar and build in extra time for the evening commute in case storms pop.
Heat Safety And City Resources
If you or someone you care for is sensitive to heat, plan to be in an air-conditioned space during the hottest hours, roughly 11 a.m. to 4 p.m., drink plenty of water, and check on older neighbors. The city keeps updated heat-safety tips and cooling-center information online, including the PCA Heatline details, at the Philadelphia Department of Public Health. You can call the PCA Heatline at 215-765-9040 for immediate guidance about heat risks or nearby cooling sites.
We have tweaked this morning's forecast to put more emphasis on the late-day storm threat north and west of I-95. For background on the warm pattern, see summerlike sizzle and wild winds this week. We will pass along any watches or warnings if they are issued and update as conditions change.
