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Weather Forecast Discussion

Unseasonably warm and rather humid through the weekend

Tracking Hurricane Maria as it crosses Puerto Rico

TODAY: Areas of low clouds and fog for awhile; otherwise, turning out mostly sunny and warm. High: 82

TONIGHT: Patchy clouds and mild. Low: 64

THURSDAY: Mostly sunny and quite warm. High: 85  Low: 61
Outside of some patchy morning low clouds or fog we may have to burn off from time to time, a sunny, warm, and dry transition from summer to fall is underway for the rest of the week. Fall may arrive late Friday afternoon, at least according to the calendar, but a summery weather pattern is ours to keep through early next week with unseasonably warm temperatures and increasingly high humidity for late September. The tropics will remain the only active feature on an otherwise quiet weather map through next week, as a large area of high pressure keeps us partly to mostly sunny and dry through at least the next five days.

Jose has been downgraded from a hurricane to a tropical storm, and a gradual weakening trend will continue as the storm undergoes a transition to a post-tropical storm. After some fringe clouds and showers from Jose on Tuesday, mainly across New Jersey, the storm has pulled far enough offshore to no longer have any additional impact on our weather. Some areas of low clouds and fog early today should give way to mostly sunny skies as the day unfolds, as highs climb into the low 80s this afternoon with an occasionally brisk northerly breeze.

High pressure to our west will continue to build in overnight through Thursday, with patchy clouds mixing in with otherwise mostly clear skies. Interestingly enough, the northerly breezes that we expect to continue through tomorrow would normally be a source of cooler and more comfortable Canadian air this time of year. In this case however, our temperatures will continue to warm despite the flow from Canada, as we inch higher in the 80s on Thursday while maintaining mostly sunny skies.

If this were a typical late September weather pattern, we would expect our average high temperatures to reach the low 70s each day, with comfortably cool overnight lows in the low 50s each night through the first week of fall. Our temperatures will remain well above those average levels through the weekend, by as much as 10 to 15 degrees on occasion. High temperatures are expected to reach well into the 80s each afternoon, with higher than average humidity contributing to the warm and summery feel. We will stop short of reaching record territory, as record highs for late September are generally in the low 90s. However, the well above average warmth will continue into early next week, likely peaking Sunday and Monday as highs reach the upper 80s. 

While Jose will harmlessly linger southeast of Cape Cod through the weekend, it may actually play an important role in the eventual fate of Hurricane Maria, a powerful Category 5 storm that tracked near the U.S. Virgin Islands overnight and is forecast to track across Puerto Rico today, bringing destructive winds and a dangerous storm surge as the island is expected to take a devastating direct hit from Maria over the next 12 hours. 
Maria’s fate beyond Puerto Rico is still unclear, as the storm is expected to remain an intense hurricane as it turns northwest later this week, likely tracking just east of the Bahamas. While there is a potential for the East Coast of the United States to see some sort of impact from Maria, the possibility of a recurve out to sea is also on the table as well. While we hope for the latter, it’s too soon to say what the end game for Maria will be, so we’ll wait until later this week when the steering patterns become more certain before making a projection. Interestingly enough, just where the remnants of Jose end up may be pivotal in determining where Maria goes. Jose could provide the escape route out to sea for Maria by helping to break down a block over the North Atlantic, or Jose could also be the impetus that forces Maria closer to the coast. Time will tell.

10 Day Forecast

  • Wednesday

    82° / 64°
    Turning Out Mostly Sunny; Warm 0%
  • Thursday

    85° / 61°
    Early Fog; Mostly Sunny; Warm 0%
  • Friday

    83° / 59°
    Warm; Sunny to Partly Cloudy 0%
  • Saturday

    85° / 63°
    Mostly Sunny and Quite Warm 0%
  • Sunday

    88° / 63°
    Very Warm with Plenty of Sun 0%
  • Monday

    87° / 62°
    Warm; Sunny to Partly Cloudy 0%
  • Tuesday

    84° / 60°
    Mix of Sun and Clouds; Warm 20%
  • Wednesday

    78° / 61°
    Clouds and Sun with a Shower 30%
  • Thursday

    76° / 58°
    Mostly Cloudy; Chance of Rain 40%
  • Friday

    72° / 52°
    Times of Sun and Clouds 0%

Historical Averages

High Low
Current 82°F 64°F
Average 73°F 51°F
Record 95°F September 20, 1914 37°F September 20, 1993

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