DAYS 1-5 (APRIL 29 – MAY 3)
High pressure moves offshore and a southwesterly air flow increases today between it and an approaching cold front. We’ll have a warm day as a result, but the South Coast will be cooler where a southwest wind comes off the ocean water. The aforementioned cold front may trigger a rain shower tonight as it moves through the region, and this will be followed by breezy, dry and only slightly cooler weather Wednesday. High pressure builds in for Thursday – a nice day but with a cooling sea breeze near the coast. Clouds start to move in later Thursday ahead of a warm front, and a this leads to an more cloud-filled Friday sky with rain showers possible both early in the day with a warm frontal passage, and late-day with an approaching cold front. Isolated thunderstorms are possible as well. Unfortunately, the trend for Saturday as for more unsettled weather as the cold front slows down and a wave of low pressure moves up along it, producing additional rain showers.
TODAY: Mostly sunny. Highs 58-65 Cape Cod, 66-73 remainder of South Coast, 74-81 elsewhere, warmest over interior valley locations. Wind SW increasing to 10-20 MPH with gusts over 20 MPH in the afternoon.
TONIGHT: Partly cloudy. A possible rain shower overnight. Lows 52-59. Wind SW 5-15 MPH, higher gusts.
WEDNESDAY: Mostly sunny. Highs 70-77. Wind NW 10-20 MPH, higher gusts.
WEDNESDAY NIGHT: Mostly clear. Lows 46-53. Wind NW 5-15 MPH.
THURSDAY: Sunny through early afternoon, then increasing high clouds. Highs 67-74, cooler coast. Wind variable up to 10 MPH with coastal sea breezes.
THURSDAY NIGHT: Becoming mostly cloudy. A few showers and a slight chance of a thunderstorm overnight. Lows 53-60. Wind SE to S up to 10 MPH.
FRIDAY: Mostly cloudy. Chance of showers, favoring early-morning and late-afternoon, including a slight chance of thunderstorms. Highs 65-72. Wind S 5-15 MPH.
FRIDAY NIGHT: Mostly cloudy. A shower possible early. Lows 51-58. Wind SW to variable 5-15 MPH.
SATURDAY: Mostly cloudy. Additional showers likely. Highs 62-69. Wind variable 5-15 MPH.
DAYS 6-10 (MAY 4-8)
Upper level low pressure brings a cool-down and still can trigger a shower May 4. Briefly fair May 5, then additional unsettled weather possible as upper level low pressure reorganizes nearby as a blocking pattern evolves. Temperatures variable – averaging not far from normal.
DAYS 11-15 (MAY 9-13)
Continued indications of a blocking pattern with upper level low pressure in control of our weather – an unsettled pattern with near to below normal temperatures.