Tuesday, May 26, 2026 — Boston is starting the day under mostly sunny skies, with mild morning temperatures in the upper 50s to low 60s. It will feel like an early taste of summer by afternoon, with a high near 79°F and light southwest winds, making it an easy call for lunch breaks in the park or a late-day patio stop.
Warm Today, Storm-Ready Tomorrow
Today, Tuesday, May 26, 2026, stays mostly sunny with a high near 79°F and a gentle southwest breeze. The real heat turns up on Wednesday, May 27, 2026, when highs climb to around 84°F and humidity ticks up along the coast.
According to the National Weather Service, a cold front sliding in on Wednesday could spark scattered showers and isolated thunderstorms after 2 p.m. Most neighborhoods will probably just see brief, spotty downpours, but a few storms could pack heavy rain and gusty winds.
Offshore, a Small Craft Advisory remains in effect for some waters through 8 a.m. this morning, with seas running 4 to 6 ft before gradually subsiding later in the day.
Getting Around
Commuters should have a relatively smooth ride today. The main trouble window comes late Wednesday afternoon, when those pop-up storms could slow buses, ferries or commuter rail if heavier cells roll through right at rush hour.
Transit riders can sign up for T-Alerts for real-time service changes and should plan a little extra time if traveling Wednesday during the late afternoon.
Boating And The Harbor
Boaters will notice choppy outer ocean waters early, with rougher conditions through the morning before seas ease back to just a few feet by midday. Operators and recreational boaters should hold off on nonessential trips until conditions improve and check the latest marine forecast before leaving the dock.
What To Pack
Sunscreen and water are the must-haves for today’s warmth. For Wednesday, it is worth tossing a lightweight rain shell or compact umbrella into your bag in case one of those afternoon storms wanders through.
By Thursday, temperatures slip back into the mid-60s, and rain chances increase from Friday night into Saturday, setting up a cooler, more unsettled end to the week.
