Boston woke up to clear skies and a mild 61°F at Logan Airport on Thursday morning, a classic early June start that will build into a warm, bright afternoon. Expect plenty of sunshine and a high near 82°F, with a light southwest breeze around 5 to 9 mph. Humidity starts off comfortable and will only edge up a bit as the weekend gets closer.
Afternoon Heat And Inland Hot Spots
Across city neighborhoods and the harbor, temperatures are expected to top out in the low 80s on Thursday, June 4, 2026. Head a little farther inland to the suburbs and river valleys and things really heat up, with readings pushing into the upper 80s and briefly flirting with 90°F by Friday and Saturday. Along the immediate shoreline, a sea breeze should keep it noticeably cooler, so bring a light layer if you are planning to spend time on the water or along the waterfront.
Showers And Thunderstorms Arrive Sunday
A front moving in late Saturday, June 6 into Sunday, June 7, 2026 will bump up rain chances. Look for scattered showers Saturday night, followed by more widespread showers and thunderstorms on Sunday. Daytime highs will slip back into the low 70s on Sunday, which will feel cooler but comes with the trade-off of potential brief heavy downpours. If you have outdoor plans, keep a backup option ready. For more on timing and who is most likely to see the worst of it, check out the Sunday storm smackdown.
Boaters And Beachgoers
The National Weather Service has issued a Small Craft Advisory from noon to 9 PM on Thursday, June 4, 2026 for Nantucket Sound, Vineyard Sound and Buzzards Bay. Southwest winds may gust toward 25 knots around the Cape and Islands and seas could turn choppy. Mariners and ferry riders should check the latest updates before heading out and be ready for conditions to turn breezier into Saturday and Sunday, according to the National Weather Service Boston/Norton.
Commuters And Outdoor Plans
Today and Friday are your best bets for errands, outdoor dining and park time, with warm and mostly dry weather across the metro area. If you have a big outdoor gathering penciled in for Sunday, you may want to shift it to Saturday or at least line up an indoor fallback. Sunday’s storms could bring gusty winds and localized downpours that briefly disrupt travel and any plans that depend on staying dry.
