Metro Boston, North Shore and Metro West: After a few cool days earlier in the week we are beginning to warm up locally as a warm front pushes across the region on Saturday. Cloudy skies, some patchy fog and scattered showers will be the rule through Saturday morning but as the warm front lifts to our north the area will become unseasonably mild and humid this afternoon. Although some peeks of sunshine are possible this afternoon there remains the chance of a shower with an outside chance of a thunderstorm. High temperatures are expected to climb into the low and mid 70s. A mild south to southwest wind at 5 to 15 mph.
Tonight, a cold front approaches from our west and may trigger another round of showers and possibly a thunderstorm. Temperatures are expected to remain mild as the mercury only falls into the mid and upper 50s. Shifting winds to the west after midnight.
Mother's Day will be the pick of the weekend. High pressure takes control as the cold front moves offshore. After clouds and possibly a brief shower very early in the morning, drier and mild conditions persist through the day with bountiful afternoon sunshine. Temperatures will climb back into the low and mid 70s once again. A moderate breeze from the west at 10 to 20 mph.
Sunday night is shaping up to be a mainly clear and cooler night. Temperatures taper back to the upper 40s well inland to low 50s elsewhere. Diminishing west winds.
A frontal boundary is likely to set up to our south during Monday. This will keep the area partly cloudy on Monday with a threat of showers at night. It remains mild with highs near 70 and overnight lows Monday night in the 50s.
On Tuesday a cold front moves down from the north and northeast and this will set us up with a chilly east wind with low clouds. Areas of fog and drizzle cannot be ruled out, especially along the coastal plain. Temperatures only in the 50s for highs, perhaps some low 60s well inland.