Boston woke up Thursday socked in by patchy fog and light rain at Logan, with temperatures hovering near 50°F and visibility cut back along the harbor. That fog is expected to hang on through mid-morning before giving way to mostly cloudy skies and a high near 56°F in the city. A backdoor front will keep the coastline noticeably cooler than inland neighborhoods, where readings can run several degrees warmer. A few spotty showers are possible this afternoon and again tonight, so if you have outdoor plans later, an umbrella is still a smart accessory.
Fog Lingers, Then Just Slim Shower Odds
Forecasters at the National Weather Service expect patchy fog to stick around through about 2 p.m., with only a slight chance of rain showers this afternoon and northeast winds around 2–7 mph. The official call keeps Boston proper near 56°F with roughly a 20% chance of measurable rain through the day. Farther inland, where the onshore flow weakens, readings will climb a bit higher. Drivers should be ready for reduced visibility near the harbor and on exposed bridges during the morning commute and plan travel time accordingly.
Tonight: Scattered Storms Try To Sneak In
This evening there is a window for showers and a few thunderstorms, mainly between about 8–10 p.m., followed by scattered showers and patchy fog lingering overnight. The city stays on the mild side, with lows in the mid-50s and light south winds. Most of the thunder threat looks elevated and focused away from Boston, so the main local concern is brief heavy downpours rather than widespread severe storms. If you are out this evening, keep a weather app handy and be ready to duck indoors if you hear thunder.
Friday Warm Inland, Weekend Turns Raw
The National Weather Service expects a shift on Friday, with inland areas warming toward the low 70s while the immediate coast stays cooler. Clouds then increase into Saturday, when highs settle closer to 55°F. A stronger cold front moves in on Sunday, bringing likely rain showers and blustery winds across the region. As that front pushes offshore late Sunday into Monday, precipitation may briefly mix with snow in some locations, although any flakes should be short-lived and are not expected to cause impacts. Monday turns noticeably colder, with highs only in the mid-40s and gusty northwest winds making it feel even chillier.
Harbor, Commute And Marine Notes
Fog and spotty rain are likely to stretch out the morning commute, especially on routes near Logan and the city’s major bridges, so give yourself extra time and use headlights in low visibility. Boaters can expect generally light seas today, although marginal Small Craft Advisory conditions are possible late tonight into early Friday. A more pronounced risk for small-craft conditions arrives Sunday into Monday as that stronger front moves through. For more local context and tips for boaters, see our April 3 forecast.
Quick Tips
Use low beams in fog, ease off the gas on harbor routes, and toss a light rain jacket in your bag if you will be out tonight. Mariners should check updated forecasts before leaving port, especially if planning trips Sunday or Monday. Keep an eye on updates through the weekend since conditions can change quickly as the front moves through.
