Lexington Weather
Lexington, Massachusetts, USA
- Overcast
-
57.2°F / 14.0°C
-
55.4°F
-
94%
- Calm, 10-min avg: Calm, gust: 2 mph
-
- 10 miles
- 0.00 in
National Weather Service Forecast for:
Lexington, MA
Issued by:
National Weather Service Boston / Norton, MA
Tonight through Tuesday
Point Forecast Updated Tue Jun 22, 2021 9:41pm EDT
Overview:
A much drier airmass moves in place as high pressure builds in overnight. Dry weather with very comfortable humidity levels persist Wednesday and Thursday. Warmer and more humid conditions return Friday and into the weekend.
Tonight:
Chance Rain Showers
Lo 54 °F
A chance of rain showers before 1am. Mostly cloudy, with a low around 54. Northwest wind around 8 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Wednesday:
Sunny
Hi 75 °F
Sunny, with a high near 75. Northwest wind around 9 mph.
Wednesday Night:
Clear
Lo 53 °F
Clear, with a low around 53. West wind 1 to 7 mph.
Thursday:
Sunny
Hi 79 °F
Sunny, with a high near 79. Southeast wind 1 to 9 mph.
Thursday Night:
Mostly Clear
Lo 55 °F
Mostly clear, with a low around 55. Southeast wind 2 to 8 mph.
Friday:
Mostly Sunny
Hi 79 °F
Mostly sunny, with a high near 79. Southeast wind 2 to 8 mph.
Friday Night:
Partly Cloudy then Slight Chance Rain Showers
Lo 63 °F
A slight chance of rain showers after 5am. Partly cloudy, with a low around 63. South wind around 8 mph.
Saturday:
Slight Chance Rain Showers
Hi 86 °F
A slight chance of rain showers. Partly sunny, with a high near 86. Southwest wind 7 to 14 mph.
Saturday Night:
Chance Rain Showers
Lo 70 °F
A chance of rain showers. Mostly cloudy, with a low around 70. Southwest wind 9 to 13 mph.
Sunday:
Chance Rain Showers
Hi 90 °F
A chance of rain showers. Partly sunny, with a high near 90. Southwest wind 10 to 15 mph. Chance of precipitation is 30%.
Sunday Night:
Chance Rain Showers
Lo 70 °F
A chance of rain showers. Partly cloudy, with a low around 70. Southwest wind 8 to 13 mph. Chance of precipitation is 40%.
Monday:
Chance Rain Showers
Hi 91 °F
A chance of rain showers. Mostly sunny, with a high near 91. Southwest wind 9 to 13 mph. Chance of precipitation is 30%.
Monday Night:
Chance Rain Showers
Lo 71 °F
A chance of rain showers. Partly cloudy, with a low around 71. Southwest wind 7 to 12 mph. Chance of precipitation is 30%.
Tuesday:
Chance Rain Showers
Hi 89 °F
A chance of rain showers. Mostly sunny, with a high near 89. Southwest wind 8 to 13 mph. Chance of precipitation is 30%.
Today 1am through 4pm EDT
Updated Wed Jun 23, 2021 1:30am EDT
Dew Pt 57°F
NW 7 mphPrecip: 4%
Dew Pt 55°F
NW 7 mphPrecip: 2%
Dew Pt 52°F
NW 7 mphPrecip: 1%
Dew Pt 50°F
NW 7 mphPrecip: 0%
Dew Pt 49°F
NW 7 mphPrecip: 0%
Dew Pt 48°F
NW 7 mphPrecip: 0%
Dew Pt 48°F
NW 8 mphPrecip: 0%
Dew Pt 47°F
NW 8 mphPrecip: 0%
Dew Pt 45°F
NW 9 mphPrecip: 0%
Dew Pt 43°F
NW 9 mphPrecip: 0%
Dew Pt 41°F
NW 9 mphPrecip: 0%
Dew Pt 40°F
NW 9 mphPrecip: 0%
Dew Pt 39°F
NW 9 mphPrecip: 0%
Dew Pt 39°F
NW 8 mphPrecip: 0%
Dew Pt 39°F
NW 8 mphPrecip: 0%
Dew Pt 40°F
W 8 mphPrecip: 0%
FORECAST DISCUSSION
Area Forecast Discussion
for Boston / Norton, MA
000
FXUS61 KBOX 230139
AFDBOX
Area Forecast Discussion
National Weather Service Boston/Norton MA
939 PM EDT Tue Jun 22 2021
.SYNOPSIS...
A much drier airmass moves in place as high pressure builds in
overnight. Dry weather with very comfortable humidity levels
persist Wednesday and Thursday. Warmer and more humid conditions
return Friday and into the weekend.
&&
.NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/...
940 PM Update...
Cold front has pushed offshore, but ana-frontal rain showers
were lingering a tad longer. The main shield was in the process
of exiting of the coast, but still a few leftover showers
across central MA. Bulk of this activity will be over by
midnight with perhaps just a spot shower or two lingers on the
coast a bit longer. Otherwise, clearing will occur as drier air
will work into the region on northwest winds. Low temperatures
by daybreak will mainly be in the 50s to near 60 towards the
Cape/Islands. We probably will see a few upper 40s in the
normally cooler spots of western MA. Enough northwest wind
should be present in the boundary layer to prevent the formation
of fog. This will be quite the change in the airmass that was in
place early this morning!
&&
.SHORT TERM /6 AM WEDNESDAY MORNING THROUGH WEDNESDAY NIGHT/...
Highlights
* Dry and quiet weather as high pressure builds over southern New
England. Seasonable temperatures with comfortable humidity.
Mid level ridge axis builds over the region through this
period. At the surface high pressure will build over southern
New England on Wednesday and moves offshore Wednesday night.
Seasonable temperatures across the region and a much more
comfortable airmass in place. Temperatures top out in the 70s
across the region with dew points in the 40s.
Mostly clear skies and a good radiational cooling across
southern New England Wednesday night. Lows range from the mid
40s to the 50s. May need to go lower in future updates as have
gone with the 25th percentile of guidance at this point in time.
&&
.LONG TERM /THURSDAY THROUGH TUESDAY/...
Highlights...
* Mild to warm afternoons and cool nights through Thursday.
* Summer heat and humidity returns by this weekend with the
chance for scattered showers and thunderstorms.
Details...
Lots of moving parts for this portion of the forecast. A low
pressure is expected to pass by well to our SE Wednesday night
into Thursday. HIgh pressure should then be the dominant weather
feature along the Eastern Seaboard late this week into early
next week. The location will be important, with the core of this
high pressure south of the Maritimes. This will be close enough
to result in a predominantly south to southwest flow this
weekend into early next week, meaning a return to increased heat
and humidity for most.
Precipitation-wise, the location of this high pressure will not
likely be close enough to keep us entirely dry during this
time. Looking at at least a chance for mainly afternoon and
evening showers and isolated thunderstorms each day Saturday
through Tuesday.
&&
.AVIATION /02Z WEDNESDAY THROUGH SUNDAY/...
Forecaster Confidence Levels.
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Tonight...High confidence.
Showers and any leftover thunderstorms exiting the region from
west to east between 00Z and 06Z. Initially will be MVFR with
localized IFR, but should quickly improve to VFR drier air moves
in wake of a cold front. NW winds at 5-10 knots.
Wednesday...High confidence.
VFR with NW to WNW around 5-10 knots.
Wednesday night...High confidence.
VFR with light and variable winds.
KBOS TAF...High confidence in TAF.
KBDL TAF...High confidence in TAF.
Outlook /Thursday through Sunday/...
Thursday through Friday: VFR.
Friday Night: Mainly VFR, with local MVFR possible. Slight
chance SHRA.
Saturday: Mainly VFR, with local MVFR possible. Breezy. Slight
chance SHRA.
Saturday Night: VFR. Breezy. Chance SHRA.
Sunday: Mainly VFR, with local MVFR possible. Breezy. Slight
chance SHRA.
&&
.MARINE...
Forecaster Confidence Levels.
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Tonight through Wednesday...High confidence
Showers and storms coming to an end as a cold front sweeps
through. Seas remain elevated to Small Craft Advisory levels
with the same timing as the previous shift had indicated into
Wednesday. Seas take the longest to diminish across the eastern
and southern outer waters. NW winds of 10-15 kts with gusts up
to 20 kts. Winds diminish to 5-10 kts and shift to the S/SW
Wednesday afternoon.
Wednesday night...High confidence.
Light southerly to southwesterly wind as high pressure builds
over the waters. Waves 2-4 ft.
Outlook /Thursday through Sunday/...
Thursday: Winds less than 25 kt.
Thursday Night: Winds less than 25 kt. Slight chance of rain
showers.
Friday through Saturday: Winds less than 25 kt.
Saturday Night: Winds less than 25 kt. Seas locally approaching
5 ft. Chance of rain showers.
Sunday: Winds less than 25 kt. Areas of seas approaching 5 ft.
Slight chance of rain showers.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 2 PM EDT Wednesday for ANZ254>256.
Small Craft Advisory until 11 AM EDT Wednesday for ANZ235-237.
&&
$$
SYNOPSIS...Belk/BL
NEAR TERM...Frank
SHORT TERM...BL
LONG TERM...Belk
AVIATION...Belk/BL
MARINE...Belk/BL
Meta data
Point forecast:
https://api.weather.gov/gridpoints/BOX/64,79/forecast
Zone forecast:
https://api.weather.gov/zones/forecast/MAZ014/forecast
Hourly forecast:
https://api.weather.gov/gridpoints/BOX/64,79/forecast/hourly
Hourly detail:
https://api.weather.gov/gridpoints/BOX/64,79
Point detail:
https://api.weather.gov/points/42.4399,-71.2405
Alerts:
https://api.weather.gov/alerts?active=1&point=42.4399,-71.2405