Tonight: Lo 52 °F
Thursday: Hi 66 °F
Dew Point: 57.4°F
Barometer: 30.04 in
Rain Rate: 0.00 in/hr
Rain today: 0.00 in
Rain 09/18/2018: 2.02 in
Visibility: 10 miles
Now: 0 mph
Gusts: 0 mph
Point Forecast Updated 7:20 pm EDT Sep 19, 2018
Lo 52 °F
Mostly cloudy, with a low around 52. North wind around 5 mph.
Hi 66 °F
Partly sunny, with a high near 66. North wind around 6 mph.
Lo 52 °F
Mostly cloudy, with a low around 52. East wind around 5 mph becoming calm.
Hi 73 °F
Partly sunny, with a high near 73. South wind 5 to 13 mph.
Lo 64 °F
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 64. Southwest wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Slight Chance Showers then Mostly Sunny
Hi 70 °F
A slight chance of showers before 9am. Mostly sunny, with a high near 70. Chance of precipitation is 20%.
Lo 52 °F
Partly cloudy, with a low around 52.
Hi 67 °F
Mostly sunny, with a high near 67.
Lo 48 °F
Partly cloudy, with a low around 48.
000 FXUS61 KBOX 192357 AFDBOX Area Forecast Discussion National Weather Service Boston/Norton MA 757 PM EDT Wed Sep 19 2018 .SYNOPSIS... A mix of clouds to the east and sun to the west today. High pressure builds into New England tonight and Thursday yielding dry cool weather. Warmer Friday ahead of an approaching cold front then turning cooler over the weekend as high pressure builds into the area from the Great Lakes. && .NEAR TERM /UNTIL 6 AM THURSDAY MORNING/... Still expecting lower clouds to return overnight in persistent NE flow. Based upon some of the high resolution mesoscale guidance, also starting to think we might see a few sprinkles after midnight, too. Any sprinkles would be mainly across SE MA, and perhaps along the east slopes of the Worcester hills and the Berkshires. Minor tweaks to the forecast to reflect these ideas. Also adjusted temperatures and dew points based on observed trends. Previous Discussion... Satellite imagery this afternoon shows the directional shear in the atmosphere through the moist lower levels and drier upper levels, evident by the low clouds streaming in from the northeast and the scattered high clouds moving west. Partly sunny skies will continue for western MA and CT while along the coast the clouds will likely hang around through the night. This means warmer highs in the CT valley (mid 70s) than along the coast (60s). The moist northeast flow in response to the surface high pressure over the Canadian maritimes will continue through the overnight and early morning hours as the high pressure begins to build south. This means likely continuation of stratus Thursday morning and along with some patchy fog. As far as winds go, today the pressure gradient tightens over the Atlantic associated with the low to our southeast. This means gusty winds over the waters, Cape, and islands up to 30 mph. The gradient relaxes early Thursday morning and winds will be on the decrease. Light winds and partial clearing over the western zones overnight will allow for some good radiational cooling in western MA/CT along with potential for patchy fog inland overnight. Lows dip into the low to mid 50s. && .SHORT TERM /6 AM THURSDAY MORNING THROUGH THURSDAY NIGHT/... Heights will again be on the rise through the day Thursday as the upper ridge builds over the east coast and our surface high center builds further south. The light winds and subsidence associated with the high pressure will keep a lid on our low level moisture and at least partly cloudy skies with some sun mixed in are likely to persist though the day, with the clearest skies to the west. There is some uncertainty as to how long the clouds will hang on. We could even see some drizzle early, especially nearer to the coast. Highs are expected to be similar to today in eastern MA/RI, but a few degrees cooler in the CT valley, around 70. Thursday night a surface low moving up through the Great Lakes region will drag a warm front up through our region. Most of the synoptic guidance keeps the majority of the rainfall to our north but we'll see rain chances increase for northwestern MA late Friday night/early Friday morning. WAA associated with this front will potentially work to offset any radiational cooling we can get if skies clear out enough, but right now temps look to bottom out in the low to mid 50s. && .LONG TERM /FRIDAY THROUGH WEDNESDAY/... Highlights... * A warm front will bring a few showers across north central and western areas early Fri * A cold front approaches late Fri, bringing scattered showers and isolated thunderstorms especially across the interior * Large high pressure builds in from central and eastern Canada Saturday afternoon into Monday, bringing cool, dry conditions Overview... 19/12Z guidance suite remains in rather good agreement with their synoptic patterns through much of this weekend. The differences in timing and amplitude of a potent mid level shortwave start to creep into the forecast early next week. Main forecast theme for the overall pattern continues. Nearly zonal flow transitions to weak ridging Friday, then back to a more zonal flow this weekend. We may see another brief warmup early next week as an upstream trough amplifies a ridge over the Northeast USA. Should this occur as currently expected, we could be looking at widespread low temperatures in the 40s Sunday night. A low pressure moving across eastern Canada should push its warm front through our region Friday, with its cold front crossing our region Friday night into Saturday morning. This has been a consistent timing for these features. High pressure over northern New England dominates this weekend. A pair of weak fronts could be near our region early next week, but its a low confidence forecast. && .AVIATION /00Z THURSDAY THROUGH MONDAY/... Forecaster Confidence Levels... Low - less than 30 percent. Moderate - 30 to 60 percent. High - greater than 60 percent. Short Term /through Thursday Night/... Tonight...Moderate confidence. Areas of MVFR/IFR cigs likely redeveloping across the region. Patchy fog possible, most likely across interior MA. Thursday...Moderate confidence. Improving to VFR, but areas of MVFR cigs persisting over Cape/Islands. KBOS Terminal...Moderate confidence in MVFR cigs lifting to VFR this evening before coming down to IFR overnight. KBDL Terminal...Moderate confidence. Mainly VFR conditions, but MVFR cigs possible for a few hours overnight. Outlook /Friday through Monday/... Friday: Mainly VFR, with local MVFR possible. Breezy. Slight chance SHRA. Friday Night: Mainly VFR, with areas MVFR possible. Windy with gusts to 30 kt. Chance SHRA, isolated TSRA. Saturday: VFR. Breezy. Slight chance SHRA. Saturday Night through Sunday Night: VFR. Monday: && .MARINE... Forecaster Confidence Levels... Low - less than 30 percent. Moderate - 30 to 60 percent. High - greater than 60 percent. Short Term /through Thursday Night/... Decided to post a Small Craft Advisory into Cape Cod Bay tonight for 5 ft seas across the northern half of the Bay. Also extended a Small Craft Advisory for the south coastal MA bays and sounds. Previous Discussion... Through Tonight...High confidence. Northeast winds will increase through the day, gusting to 30 mph in the south and eastern waters, higher to the southeast closer to the low pressure center. Seas building to 5-6 ft. Waters will be more tranquil further to the north. Wind gusts slowly diminish Thursday morning. Thursday...High confidence. NE winds decreasing through the day as high pressure builds south. Seas will remain up to 5 ft over the eastern waters through the day. Outlook /Friday through Monday/... Friday: Low risk for Small Craft Advisory winds with areas of gusts up to 30 kt. Seas up to 5 ft. Friday Night: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Local rough seas. Slight chance of rain showers, isolated thunderstorms. Saturday: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Local rough seas. Slight chance of rain showers. Saturday Night: Winds less than 25 kt. Seas locally approaching 5 ft. Sunday: Winds less than 25 kt. Sunday Night: Winds less than 25 kt. Seas locally approaching 5 ft. Monday: Winds less than 25 kt. Seas up to 5 ft. && .BOX WATCHES/WARNINGS/ADVISORIES... CT...None. MA...None. RI...None. MARINE...Small Craft Advisory until 5 AM EDT Thursday for ANZ231>235. Small Craft Advisory until 8 PM EDT Thursday for ANZ250-254. Small Craft Advisory until 8 AM EDT Thursday for ANZ251-255- 256. && $$ SYNOPSIS...Belk/BW NEAR TERM...Belk/BW SHORT TERM...BW LONG TERM...Belk AVIATION...Belk/BW MARINE...Belk/Nocera/BW
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For more accurate, manually measured rain data, see the Local Precip Data page.
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12 hours 16 minutes
Waxing Gibbous (77%)