Boston is starting Monday, March 9, 2026, on a crisp but bright note, with clear skies and temperatures in the low 40s at Logan International Airport. By afternoon, it will feel more like late April than early March, with sunshine, highs near 66°F, and a southwest breeze at 6–12 mph, occasionally gusting to around 22 mph.
Fog Burns Off, Big Warmup Today and Tuesday
Patchy fog that formed along the South Shore and Cape will lift by mid‑morning, clearing the way for sun in most neighborhoods through Tuesday. Highs are expected to top out around 66°F today and could push into the upper 60s to lower 70s on Tuesday away from the immediate coast, with the warmest spots inland. A steady southwest wind will pull warm air down to the surface, turning conditions from light to pleasantly breezy in the afternoon. That setup could nudge temperatures close to record territory on Tuesday, according to the National Weather Service.
Midweek Rain and River Concerns
The pattern shifts midweek, with a chance of showers on Wednesday and a more substantial round of rain likely from Thursday into Thursday night. On the back side of that system, some of the higher terrain could briefly flip to snow. Behind the front, temperatures drop back into the 40s by Friday. Forecasters caution that several days of above‑normal warmth will speed up snowmelt and may push some rivers toward minor flood levels over the coming week.
What To Do Today
Morning commuters along the South Shore should plan for pockets of reduced visibility through mid‑morning while the fog clears, but most daytime drives today and Tuesday will be dry and comfortable. Boaters should note Small Craft Advisory conditions on some southern waters through late Monday morning and check local marine forecasts before heading out. Anyone with outdoor plans later this week should monitor forecasts from Thursday onward for rain and any flood advisories tied to the faster snowmelt.
We previously covered the early‑week snow‑to‑rain threat in a March 3 report, but the pattern has since flipped to warmer, sunnier conditions to kick off this week. You can read that March 3 Hoodline report on snow, slush and sneaky black ice.
