High pressure maintains control of the weather this weekend, which will have two distinctive personalities to its weather. Today is a dry day – dew point in the 40s, with a chilly early morning and a pleasantly mild afternoon, light wind, and bright sun mixed with patchy passing clouds as the center of high pressure moves from overhead to just south of the area. Sunday is going to bring the feel of summer back, humidity spiking with dew point rising to the 60s, a gusty southwesterly breeze with high pressure to the south, and plenty of sun but a hazier look to the sky due to another plume of high altitude smoke from western US wildfires. A cold front approaching from the north later Sunday may trigger enough instability so that we see an isolated shower or thunderstorm by evening across southern NH and a remote chance that one of these could wander into northeastern MA as well. As the front presses closer then passes through the region, a round of scattered showers should accompany it during the nighttime hours. Moisture arriving from the west as this front settles just south of the region will help to bring rounds of showers and much cooler weather for Monday, into Monday night as well. High pressure from the north is expected to push the unsettled weather to the south with improving conditions Tuesday, and then as the pattern progresses, the high will move over then south of the region with fair, mild weather for Wednesday.<\/p>\n\n\n\n
TODAY: Mostly sunny to partly cloudy. Highs 70-77, coolest eastern shores. Wind W up to 10 MPH with developing coastal sea breezes.<\/p>\n\n\n\n
TONIGHT: Partly cloudy early then clearing. High altitude smoke arriving. Patchy ground fog in lower elevations. Lows 51-58. Wind SW up to 10 MPH.<\/p>\n\n\n\n
SUNDAY: Hazy (smoke-filtered) sunshine. Highs 80-87 but 70s South Coast. Dew point 60+. Wind SW 10-20 MPH, higher gusts especially South Coast.<\/p>\n\n\n\n
SUNDAY NIGHT: Mostly cloudy. Chance of showers, possibly a thunderstorm, mainly across southern NH and possibly northeastern MA. Lows 58-65. Wind W 5-15 MPH shifting to N.<\/p>\n\n\n\n
MONDAY: Cloudy. Periods of showers and areas of fog, especially afternoon. Highs 65-72. Wind NE 5-15 MPH.<\/p>\n\n\n\n
MONDAY NIGHT: Cloudy. Areas of fog. Showers likely, especially evening. Lows 56-63. Wind NE-N up to 10 MPH.<\/p>\n\n\n\n
TUESDAY: Clouds break for sun. Areas of fog early. Highs 66-73. Wind N-NW 5-15 MPH.<\/p>\n\n\n\n
TUESDAY NIGHT: Clearing but areas of ground fog in lower elevations. Lows 50-57. Wind calm.<\/p>\n\n\n\n
WEDNESDAY: Sun and a few clouds. Highs 70-77. Wind W to SW 5-15 MPH.<\/p>\n\n\n\n
DAYS 6-10 (SEPTEMBER 22-26)<\/p>\n\n\n\n
There are changes and lots to keep track of during this period of time. First, a quick push of warm and humid air will be thwarted by a strong cold front sweeping across the region on the day of the autumnal equinox (Sep 22), and this front can bring a round of showers and possible thunderstorms, and definitely a gusty, shifting wind (timing of front to be determined). Coolest air in a while arrives behind front for September 23 and 24 as we have a gusty breeze on 9-23 then less wind the day following. High pressure shifts over then south of the region with a warm-up for the last couple days of this period, and eventually the possibility of showers as another front approaches. At the same time, we’ll be watching for Fiona somewhere off the US East Coast (likely quite far out to sea but close enough for impact via rough surf). Fiona, while battling adverse conditions currently, will be well beyond that and should be of hurricane strength when it makes its closest pass to our area, but kept offshore by that push of Canadian air.<\/p>\n\n\n\n
DAYS 11-15 (SEPTEMBER 27 – OCTOBER 1)<\/p>\n\n\n\n
The trends continue to be for another strong push of cool air from Canada arriving early in the period that may last several days with mainly dry weather conditions as well.<\/p>\n","protected":false},"excerpt":{"rendered":"
High pressure maintains control of the weather this weekend, which will have two distinctive personalities to its weather. Today is a dry day – dew point in the 40s, with a chilly early morning and a pleasantly mild afternoon, light wind, and bright sun mixed with patchy passing clouds as the center of high pressure … Continue reading Saturday September 17 2022 Forecast (7:53AM)<\/span>