Boston starts Friday, June 5 under mostly sunny skies and mild air, with early temperatures in the upper 60s headed for the low 80s and a high near 81°F. A light northwest breeze should keep the harbor comfortable, making this afternoon prime time for parks, patios, and any excuse to linger outside. The warmth hangs on into Saturday before things turn more unsettled later in the weekend.
Afternoon And Saturday
Through this afternoon, expect mostly sunny skies with highs around 81°F, and slightly warmer readings in some inland neighborhoods. Saturday, June 6 stays warm, with highs near 83°F as humidity ticks up and southwest winds increase to 5–15 mph. If your plans involve a long dinner outdoors or a late backyard hang on Saturday, keep an eye on conditions, since showers are possible later in the day.
Saturday Night Into Sunday
According to the National Weather Service Boston/Norton, the chance of showers rises Saturday evening, along with a growing risk for a few strong to severe thunderstorms after sunset. Any stronger storms could bring damaging wind gusts and brief heavy downpours. Sunday, June 7 looks wetter, with showers and scattered thunderstorms likely and highs around 74°F as onshore flow brings cooler air back in. Keep your Saturday night through Sunday plans flexible and check updated forecasts Saturday afternoon for more precise timing.
Beaches, Boats And The Commute
The National Weather Service also flags a moderate rip current risk Saturday for east-facing Cape Cod beaches and other ocean-facing shores, so swimmers should pay close attention to lifeguard instructions and posted flags. Mariners can expect southwest winds gusting near 25 mph Saturday, with seas building to 3–5 feet, and Small Craft Advisory conditions are possible on some waters. During stormier periods Saturday night and Sunday, plan for slower commutes and a few downed branches where the gusts hit harder.
Plan Ahead
Bottom line: soak up the warm, sunny Friday, but have a backup plan ready for Saturday night and Sunday events. A lightweight rain jacket will come in handy for fast-moving downpours, and securing lightweight outdoor furniture is a smart move if storms are in the forecast. Before heading to the beach or launching the boat this weekend, check the latest National Weather Service outlooks.
