DAYS 1-5 (SEPTEMBER 3-7)
High pressure over the region early today slides offshore during the next 24 hours and sits there for a couple days after that, while a weak upper low over our area pulls out of the region today. Meanwhile a broad trough of low pressure will approach the Northeast from the west late this week, crossing the region this weekend. This is the large scale picture. What does that mean for our day to day weather? It translates to today being similar to yesterday with lots of sun and pleasant feeling air, a touch warmer than yesterday for some areas but still manageable humidity levels. Those humidity levels bump up a bit more, along with the temperature, on Thursday. A cold front will approach the region in the evening bringing more clouds in but this front will be dissipating as it loses support and may only cause a passing shower in the pre-dawn hours of Friday. That day itself will be even warmer with even higher humidity, and there can be a passing shower or t-storm in a few locations, but most of the day will be rain-free, and many areas will see nothing at all. The warmth and humidity continue elevated into the start of the weekend, with Saturday being another such day. A stronger cold front will cross the region, but this may not happen until sometime Saturday night or even early Sunday morning as the trend for this to occur has been with slower timing. That front will bring our best shot at showers and a few thunderstorms in the region, but it may be only for a relatively short period of time and not particularly beneficial as we continue to see our region having an increased need for rain after a dry summer. What the front will do is deliver cooler, less humid air by the end of the weekend, though clouds may be stubborn to completely let go of our region on Sunday, so I can’t forecast a completely sunny day at this point.
TODAY: Mostly sunny to partly cloudy. Highs 74-81, coolest along the coast. Wind variable under 10 MPH becoming SE to S up to 10 MPH.
TONIGHT: Mostly clear to partly cloudy. Patchy fog. Lows 55-62. Wind S up to 10 MPH.
THURSDAY: Partly sunny. Highs 75-82, coolest South Coast. Wind S 5-15 MPH.
THURSDAY NIGHT: Mostly cloudy. A passing shower possible overnight. Patchy fog. Lows 58-65. Wind S 5-15 MPH.
FRIDAY: Partly sunny. Slight chance of a passing shower or thunderstorm. Highs 80-87 except 70s South Coast. Dew point in 60s. Wind S 5-15 MPH.
FRIDAY NIGHT: Partly cloudy. Patchy fog. Lows 62-69. Dew point 60+. Wind S to SW up to 10 MPH.
SATURDAY: Sun/cloud mix. Highs 81-88, except cooler South Coast. Dew point in 60s. Wind SW 5-15 MPH.
SATURDAY NIGHT: Variably cloudy. Showers and possibly a thunderstorm mainly overnight. Patchy fog overnight. Lows 63-70. Dew point 60+. Wind SW 5-15 MPH.
SUNDAY: Variably cloudy. A shower possible early, favoring eastern areas. Highs 70-77. Dew point falls below 60. Wind NW 5-15 MPH.
DAYS 6-10 (SEPTEMBER 8-12)
Canadian high pressure builds in with fair, cool weather early next week, then sinks slowly southward with continued fair weather with still-cool nights but warmer afternoons mid to late week.
DAYS 11-15 (SEPTEMBER 13-17)
At mid month we watch a battle between renewed Canadian high pressure from the north and a frontal boundary with areas of low pressure to the south. Leaning toward domination by the former, with a dry pattern persisting here with near to below normal temperatures. This does not mean we cannot get a period of warmer, more humid weather including shower chances. Will monitor trends.