Lexington, Massachusetts, USA
Point Forecast Updated Tue Apr 23, 2024 3:40am EDT
Cloudy, much cooler, with scattered light rain continuing for Thursday. Dry and seasonable for much of Friday with high pressure in control. A cold front brings another round of light rain showers Friday night into Saturday morning. Dry for the rest of Saturday with gusty winds. The dry stretch of weather continues into early next week with the next chance of wet weather Tuesday night and Wednesday as a frontal system approaches.
Clear
Lo 33 °F
Clear, with a low around 33. Southwest wind around 3 mph.
Sunny
Hi 62 °F
Sunny, with a high near 62. South wind 3 to 13 mph.
Partly Cloudy
Lo 40 °F
Partly cloudy, with a low around 40. South wind 8 to 12 mph.
Showers And T-Storms Likely
Hi 59 °F
A chance of rain showers between 9am and 1pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 59. Southwest wind 9 to 16 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Slight Chance Rain Showers then Mostly Clear
Lo 31 °F
A slight chance of rain showers before 8pm. Mostly clear, with a low around 31. Northwest wind 9 to 16 mph. Chance of precipitation is 20%.
Sunny
Hi 55 °F
Sunny, with a high near 55. North wind around 9 mph.
Clear
Lo 32 °F
Clear, with a low around 32. Southwest wind 6 to 9 mph.
Sunny
Hi 59 °F
Sunny, with a high near 59. East wind 6 to 12 mph.
Mostly Clear
Lo 37 °F
Mostly clear, with a low around 37. South wind 8 to 13 mph.
Mostly Sunny
Hi 62 °F
Mostly sunny, with a high near 62. South wind 8 to 14 mph.
Chance Rain Showers
Lo 46 °F
A chance of rain showers after 7pm. Mostly cloudy, with a low around 46. South wind around 16 mph. Chance of precipitation is 30%.
Chance Rain Showers
Hi 72 °F
A chance of rain showers. Partly sunny, with a high near 72. Southwest wind around 16 mph. Chance of precipitation is 30%.
Slight Chance Rain Showers
Lo 55 °F
A slight chance of rain showers before 2am, then patchy fog and a slight chance of rain showers between 2am and 3am. Mostly cloudy, with a low around 55. Southwest wind 10 to 14 mph.
Partly Sunny then Slight Chance Rain Showers
Hi 74 °F
A slight chance of rain showers after 4pm. Partly sunny, with a high near 74. South wind around 12 mph.
Updated Tue Apr 23, 2024 3:40am EDT
000 FXUS61 KBOX 180520 AFDBOX Area Forecast Discussion National Weather Service Boston/Norton MA 120 AM EDT Thu Apr 18 2024 .SYNOPSIS... Cloudy, much cooler, with scattered light rain continuing for Thursday. Dry and seasonable for much of Friday with high pressure in control. A cold front brings another round of light rain showers Friday night into Saturday morning. Dry for the rest of Saturday with gusty winds. The dry stretch of weather continues into early next week with the next chance of wet weather Tuesday night and Wednesday as a frontal system approaches. && .NEAR TERM /UNTIL 6 AM THIS MORNING/... 935 PM Update... * Showers mainly southwest of an ORE-PVD-ORH line overnight * Low temps in the lower to middle 40s Previous forecast is on track. 850 MB warm front will generally remain across southwest MA & CT overnight with a mid level ridge axis blocking its eastward progress. This will confine most of the showers to the southwest of an ORE-ORH-PVD line overnight. To the east of this region...nothing more than perhaps a few brief light showers/sprinkles with the majority of the overnight hours featuring dry weather. The clouds will keep low temps mainly in the lower to middle 40s. && .SHORT TERM /6 AM THIS MORNING THROUGH 6 PM FRIDAY/... Highlights: * An easterly wind will lead to a much cooler day, a few showers are possible, though a washout is not expected. Mid-level ridge for Thursday, though a shortwave passage will bring our a few showers, not a washout by any means. At this point, kept POPs around 30 ~ Chance Rain. The more noticeable difference is the east wind, allowing for a raw/cool feel. High temperatures along the immediate coast are in the middle to upper 40s. Elsewhere, highs are lower and middle 502. Higher elevations in western Massachusetts are the coldest in the lower 40s. East wind are 10 to 15 mph, with gusts along the coast to 25 mph. Precipitation chances come to an end overnight, though clouds and on shore flow does continue into the overnight hours. Do think spots along the eastern coast could see spot drizzle, but didn't have the confidence to include it in the WX GRID. Guidance this afternoon remained split on how much low level moisture would linger, so OPT to leave it out. Similar to the night before, our temperatures are in the upper 30s and low 40s. && .LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/... Key Points... * Mainly dry and seasonable Friday * Scattered showers Fri night into early Sat followed by mild and breezy conditions Sat afternoon * Dry conditions return for Sun into Tue. Cooler Sun, then milder Mon and Tue * Shower chances increase by Wed Details... Friday into Saturday... Mid level shortwave departs by early Fri with weak shortwave ridging following. This will bring dry conditions for much of the day, although next shortwave and cold front will be approaching from western NY in the afternoon. We should see some sunshine develop, especially in eastern New Eng but trend will be for increasing cloud cover in the afternoon. Low risk a few showers could spill into western MA by days end but bulk of shower activity should hold off until Fri night. Near normal temps Fri. Weak cold front moves into SNE Fri night with modest increase in moisture as PWATs increase to near 1" ahead of the front. This should bring a round of scattered showers Fri night which will likely linger into Sat morning, especially in the east as the front gets hung up near the coast. Then drying out in the afternoon with somewhat gusty W winds developing in the afternoon. Given the colder airmass will be lagging to the NW assocd with a secondary cold front, it should be a mild afternoon with temps reaching the 60s, and some upper 60s possible in SE MA. This secondary cold front is tied to a decent shortwave passage late Sat-Sat evening. The column is drying at this time but there may be a brief window for a few showers with the front late Sat in the interior. Did not include in the forecast at this time as confidence is low, but will re-evaluate in later forecasts. Sunday through Wednesday... Cooler post-frontal airmass settles in on Sunday with seasonable temps and abundant sunshine. Dry weather continues Mon and Tue with moderating temps. A potent shortwave is forecast to move off the mid Atlc coast Mon night-Tue but global ensemble guidance keeps moisture well to the south with a minimum in PWATs across SNE. Next northern stream shortwave approaches from the west Tue night and Wed. Timing and amplitude of the system is uncertain but risk for showers will increase by Wed. && .AVIATION /05Z THURSDAY THROUGH MONDAY/... Forecast Confidence Levels: Low - less than 30 percent. Moderate - 30 to 60 percent. High- greater than 60 percent. 06z TAF Update... Today...High Confidence. Mainly VFR conditions prevail east of the CT River Valley despite an abundance of mid level cloudiness and a few showers at times. Marginal MVFR conditions near and west of the CT River Valley. The scattered showers will be mainly focused across the interior today...but a few brief showers will probably survive into eastern MA although the majority of the day should be rain free in that region. ENE winds 5 to 15 knots with gusts of 20-25 knots developing near the south coast and Islands. Tonight and Friday...High Confidence. Mainly VFR conditions despite plenty of mid level cloudiness. NE winds 5 to 15 knots tonight becoming SE on Fri. KBOS TAF...High confidence in TAF. KBDL TAF...High confidence in TAF. Outlook /Friday Night through Monday/... Friday Night: Mainly VFR, with local IFR possible. Breezy. Chance SHRA. Saturday: VFR. Breezy. Slight chance SHRA. Saturday Night through Sunday Night: VFR. Breezy. Monday: VFR. && .MARINE... Forecaster Confidence Levels: Low - less than 30 percent. Medium - 30 to 60 percent. High - greater than 60 percent. Tonight through Thursday Night...High Confidence. * Small Craft Advisory for Block Island Sounds and waters south of Block Island tonight and into Thursday. A weak wave of low pressure drops southeast across the mid- Atlantic with high pressure moving across the eastern Canadian Maritimes into Thursday. A few spot showers and perhaps a rumble of thunder possible. This will result in SE winds this evening shifting to the E by Thursday morning at speeds of 10 to 15 knots. Some gusts up to 25 knots with marginal 5 foot seas for the southwest waters, hence the newly issued Small Craft Advisory through much of Thursday. Seas may remain elevated enough to warrant the advisory to be extended into Thursday night for the waters south of Block Island. Future forecasts may want to include this. Outlook /Friday Night through Monday/... Friday: Winds less than 25 kt. Seas locally approaching 5 ft. Friday Night: Winds less than 25 kt. Seas locally approaching 5 ft. Chance of rain showers. Saturday: Winds less than 25 kt. Chance of rain showers. Saturday Night: Winds less than 25 kt. Seas locally approaching 5 ft. Sunday through Monday: Winds less than 25 kt. && .BOX WATCHES/WARNINGS/ADVISORIES... CT...None. MA...None. RI...None. MARINE...Small Craft Advisory from 5 AM early this morning to 5 PM EDT this afternoon for ANZ237. Small Craft Advisory from 5 AM early this morning to 8 PM EDT this evening for ANZ256. && $$ SYNOPSIS...KJC/Dooley NEAR TERM...Frank SHORT TERM...Dooley LONG TERM...KJC AVIATION...Frank/KJC MARINE...KJC/Dooley
Point forecast:
https://api.weather.gov/gridpoints/BOX/65,93/forecast
Zone forecast:
https://api.weather.gov/zones/forecast/MAZ014/forecast
Hourly forecast:
https://api.weather.gov/gridpoints/BOX/65,93/forecast/hourly
Hourly detail:
https://api.weather.gov/gridpoints/BOX/65,93
Point detail:
https://api.weather.gov/points/42.4399,-71.2405
Alerts:
https://api.weather.gov/alerts?active=1&point=42.4399,-71.2405