After topping out in the upper 70s today, we’ll likely see temperatures breach 80° for the second time this year on Wednesday away from the cooler coastline as southerly flow around Atlantic high pressure keeps a very mid-spring-like feel to our weather in place. The temperature difference between the coast and just 10 miles inland could be pretty abrupt — highs may struggle to 70° at the beaches — thanks to the cooler nearby shelf waters and the potential for sea fog (more on that in a second). This pattern stays in place through Friday before a front swings through and cools us off quite significantly for the weekend.

One fly in the ointment will certainly be the potential for sea fog given such warm air over relatively chilly shelf waters. Short-term high-resolution guidance is in decent agreement that a sea fog bank could creep up the coast throughout the day Wednesday, lowering visibilities at the beaches and keeping temperatures some 10-15° cooler where fog hangs around. Southwesterly winds look to keep fog from penetrating too far inland, but that’s something we’ll keep an eye on as well for potential travel impacts. Sea fog will remain a bit of a wild card in the forecast through the end of the week, so stay tuned for tweaks.