Lexington Weather
Lexington, Massachusetts, USA
- Clear
-
69.3°F / 20.7°C
-
53.4°F
-
57%
- Calm, 10-min avg: Calm, gust: None
- 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 16, 2026 7:09pm EDT
Overview:
- High astronomical tides with less than a foot of storm surge
could cause minor coastal flooding for the late evening high
tides.
- Mostly dry Wednesday but there is a chance for scattered pop-
up showers and thunderstorms across western/central New
England and some showers over the Cape & islands.
- Gusty southerly winds with some showers and perhaps a few t-storms
on Thursday. Watching the severe weather potential too...But right
now thinking main threat will be to our west and/or south.
- Beautiful stretch of weather Friday into the weekend with highs
mainly between 75 and 85 degrees with the warmest of the days
being Friday. Comfortable humidity the entire period.
- Perhaps a period of much needed rain to kick off the start of
the next work week...But that is uncertain given 6+ days in
the future.
Tonight:
Mostly Clear
Lo 55 °F
Mostly clear, with a low around 55. Southwest wind 2 to 6 mph.
Wednesday:
Mostly Sunny
Hi 81 °F
Mostly sunny, with a high near 81. South wind 2 to 12 mph.
Wednesday Night:
Partly Cloudy then Chance Rain Showers
Lo 60 °F
A chance of rain showers after 4am. Partly cloudy, with a low around 60. South wind 3 to 10 mph. Chance of precipitation is 30%.
Thursday:
Rain Showers
Hi 79 °F
Rain showers before 2pm, then showers and thunderstorms. Cloudy, with a high near 79. South wind 5 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Thursday Night:
Showers And T-Storms Likely then Partly Cloudy
Lo 62 °F
Showers and thunderstorms likely before 8pm. Partly cloudy, with a low around 62. Southwest wind 8 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.
Juneteenth:
Mostly Sunny
Hi 83 °F
Mostly sunny, with a high near 83. West wind around 13 mph, with gusts as high as 24 mph.
Friday Night:
Mostly Clear
Lo 56 °F
Mostly clear, with a low around 56. West wind around 12 mph.
Saturday:
Sunny
Hi 79 °F
Sunny, with a high near 79. West wind 10 to 14 mph, with gusts as high as 26 mph.
Saturday Night:
Mostly Clear
Lo 55 °F
Mostly clear, with a low around 55. West wind 7 to 13 mph, with gusts as high as 23 mph.
Sunday:
Sunny then Slight Chance Rain Showers
Hi 76 °F
A slight chance of rain showers after 2pm. Sunny, with a high near 76. West wind around 10 mph.
Sunday Night:
Slight Chance Rain Showers then Partly Cloudy
Lo 57 °F
A slight chance of rain showers before 8pm. Partly cloudy, with a low around 57. West wind 3 to 9 mph.
Monday:
Chance Rain Showers
Hi 79 °F
A chance of rain showers after 8am. Mostly sunny, with a high near 79. East wind 3 to 7 mph. Chance of precipitation is 40%.
Monday Night:
Chance Rain Showers
Lo 58 °F
A chance of rain showers. Mostly cloudy, with a low around 58. North wind around 6 mph. Chance of precipitation is 40%.
Tuesday:
Slight Chance Rain Showers then Slight Chance Showers And T-Storms
Hi 79 °F
A slight chance of rain showers before 2pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 79. North wind 3 to 8 mph.
Tonight 9pm through Thu 8am EDT
Updated Tue Jun 16, 2026 7:09pm EDT
9:00pm
Dew Pt 48°F
SW 6 mphPrecip: 0%
10:00pm
Dew Pt 48°F
SW 5 mphPrecip: 0%
11:00pm
Dew Pt 48°F
SW 5 mphPrecip: 0%
12:00am
Dew Pt 49°F
SW 3 mphPrecip: 0%
1:00am
Dew Pt 48°F
SW 3 mphPrecip: 0%
2:00am
Dew Pt 48°F
SW 2 mphPrecip: 0%
3:00am
Dew Pt 48°F
SW 2 mphPrecip: 0%
4:00am
Dew Pt 48°F
SW 2 mphPrecip: 0%
5:00am
Dew Pt 49°F
W 2 mphPrecip: 0%
6:00am
Dew Pt 49°F
SW 2 mphPrecip: 0%
7:00am
Dew Pt 51°F
SW 3 mphPrecip: 0%
8:00am
Dew Pt 52°F
SW 3 mphPrecip: 1%
9:00am
Dew Pt 52°F
SW 5 mphPrecip: 1%
10:00am
Dew Pt 51°F
S 5 mphPrecip: 1%
11:00am
Dew Pt 50°F
S 6 mphPrecip: 2%
12:00pm
Dew Pt 50°F
S 7 mphPrecip: 3%
1:00pm
Dew Pt 50°F
S 8 mphPrecip: 4%
2:00pm
Dew Pt 50°F
SE 9 mphPrecip: 3%
3:00pm
Dew Pt 49°F
SE 10 mphPrecip: 4%
4:00pm
Dew Pt 50°F
SE 10 mphPrecip: 4%
5:00pm
Dew Pt 50°F
SE 12 mphPrecip: 4%
6:00pm
Dew Pt 51°F
SE 10 mphPrecip: 4%
7:00pm
Dew Pt 51°F
S 9 mphPrecip: 3%
8:00pm
Dew Pt 51°F
S 8 mphPrecip: 1%
9:00pm
Dew Pt 50°F
S 7 mphPrecip: 1%
10:00pm
Dew Pt 51°F
S 7 mphPrecip: 0%
11:00pm
Dew Pt 51°F
S 6 mphPrecip: 2%
12:00am
Dew Pt 52°F
S 5 mphPrecip: 1%
1:00am
Dew Pt 53°F
S 5 mphPrecip: 0%
2:00am
Dew Pt 54°F
S 3 mphPrecip: 4%
3:00am
Dew Pt 55°F
S 3 mphPrecip: 7%
4:00am
Dew Pt 56°F
S 3 mphPrecip: 18%
5:00am
Dew Pt 57°F
S 5 mphPrecip: 25%
6:00am
Dew Pt 58°F
S 5 mphPrecip: 23%
7:00am
Dew Pt 59°F
S 6 mphPrecip: 38%
8:00am
Dew Pt 60°F
SE 7 mphPrecip: 50%
Rain: 0.02 in
FORECAST DISCUSSION
Area Forecast Discussion
for Boston / Norton, MA
000
FXUS61 KBOX 162302
AFDBOX
Area Forecast Discussion
National Weather Service Boston/Norton MA
702 PM EDT Tue Jun 16 2026
.WHAT HAS CHANGED...
No significant changes to the forecast.
&&
.KEY MESSAGES...
- High astronomical tides with less than a foot of storm surge
could cause minor coastal flooding for the late evening high
tides.
- Mostly dry Wednesday but there is a chance for scattered pop-
up showers and thunderstorms across western/central New
England and some showers over the Cape & islands.
- Gusty southerly winds with some showers and perhaps a few t-storms
on Thursday. Watching the severe weather potential too...But right
now thinking main threat will be to our west and/or south.
- Beautiful stretch of weather Friday into the weekend with highs
mainly between 75 and 85 degrees with the warmest of the days
being Friday. Comfortable humidity the entire period.
- Perhaps a period of much needed rain to kick off the start of
the next work week...But that is uncertain given 6+ days in
the future.
&&
.DISCUSSION...
KEY MESSAGE 1...High astronomical tides with less than a foot of
storm surge could cause minor coastal flooding for the late evening
high tides.
Astronomical tides continue to very slowly come down through the
week, overall lessening the coastal flooding/splashover risk each
day. Still expecting at least one to two more tide cycles reaching
just into minor flooding. Highest confidence of localized coastal
flooding will be the high tide late tonight/early Wednesday morning,
and a coastal flood statement remains in effect for this reason.
There is potential that this statement will need to be extended
through Wednesday but confidence is too low at this point.
KEY MESSAGE 2...Mostly dry Wednesday but there is a chance for
scattered pop-up showers and thunderstorms across far
western/central New England and some showers over the Cape &
islands.
A relatively quiet day expected on Wednesday, if not as quiet as
today. Southerly flow will increase as SNE becomes sandwiched
between a surface high pressure over the western Atlantic and an
approaching low over the Great Lakes. This will advect more moisture
into the region with PWATs rising from 0.5" today to around 1"
Wednesday while dewpoints also rise from the mid 40s to the low to
mid 50s. This will make it feel modestly more humid but not bad
while also increasing cloudcover and moisture content for some
scattered showers and thunderstorms. Not expecting widespread
coverage of showers/t-storms but the best chance for an afternoon
storm will be in western and central MA where we'll have several
hundred J/kg of CAPE combined with lift from a weak mid level
shortwave. Secondarily, Cape Cod and the islands may get some
showers from the periphery of a weak low passing well offshore.
KEY MESSAGE 3...Gusty southerly winds with some showers and
perhaps a few t-storms on Thursday. Watching the severe weather
potential too...But right now thinking main threat will be to
our west and/or south.
Approaching mid level shortwave/warm front will be crossing the
region Thu morning. Modest lift will likely result in a cluster of
elevated showers and perhaps an embedded t-storm or two mainly Thu
morning. The bulk of this rain may end up northwest of I-95 and
especially west/northwest MA given their closer to the better
dynamics. After the first round of showers departs...a 50+ knot
southerly LLJ will result in gusty southerly winds depending on how
much heating we are able to realize. Perhaps on the order of 25 to
35 mph seems reasonable at this time. Again...that could be
less/more depending on the amount of heating we are able to realize.
Right now we have highs in the upper 70s to near 80 given elevated
showers and a lot of clouds.
While this first round of showers will tend to diminish Thu
afternoon...the window for surface destabilization ahead of the
approaching cold front may be limited. There may also be subsidence
behind this first round of showers. That being said...we still will
need to watch the risk for severe weather too given strong wind
fields/jet dynamics...But right now thinking that the main risk will
be to our west and/or south where better instability likely resides.
KEY MESSAGE 3...Beautiful stretch of weather Friday into the weekend
with highs mainly between 75 and 85 degrees with the warmest of the
days being Friday. Comfortable humidity the entire period.
Two closed upper level lows just south of Hudsons Bay will
result in height fields lower than normal Friday into this
weekend across the Northeast. This will suppress deeper moisture
to our south and result in a beautiful stretch of weather. High
temperatures will generally be between 75 and 85 with
comfortable humidity. Overnight low temperatures will mainly be
in the 50s to the lower 60s.
Generally dry weather is on tap over this time period too. Some
northern stream energy may result in a diurnally driven brief spot
shower or two...But for all intensive purposes dry and beautiful
June weather is on tap.
KEY MESSAGE 4...Perhaps a period of much needed rain to kick off the
start of the next work week...But that is uncertain given 6+ days in
the future.
Quite a bit of uncertainty for the start of the next work week. Some
of the guidance has a low pressure system tracking near or south of
us. If that were too happen...the potential would exist for a period
o some much needed rain sometime Mon into early Tue. But given lack
of baroclinicity in the summer and convective processes that are
usually involved...it is way too early to have any confidence
especially given it is 6+ days in the future. Something to watch
though in the coming days.
&&
.AVIATION /00Z WEDNESDAY THROUGH SUNDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
00z TAF Update...
Tonight...High Confidence.
VFR. Winds becoming light SW/calm.
Wednesday...High Confidence.
VFR despite mid level cloudiness. Winds becoming S at 5-10 knots
except localized sea breezes developing along portions of the
immediate coast. A few afternoon/evening spot showers possible
in the distant interior...but otherwise dry weather continues.
Wednesday Night...High Confidence.
VFR during the evening with some MVFR to localized IFR
conditions developing toward daybreak across parts of the
interior and areas near the south coast. Scattered showers may
also develop toward morning with the focus across interior MA.
Winds becoming SE at 5 to 10 knots late.
KBOS Terminal...High confidence in TAF.
KBDL Terminal...High confidence in TAF.
Outlook /Wednesday Night through Sunday/...
Thursday: Mainly VFR, with local IFR possible. Windy with local
gusts up to 30 kt. SHRA likely, slight chance TSRA, patchy BR.
Thursday Night through Friday Night: VFR. Breezy.
Saturday: VFR. Windy with local gusts up to 30 kt.
Saturday Night: VFR. Breezy.
Sunday: VFR. Breezy. Slight chance SHRA.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Through Wednesday night: High confidence.
Winds and seas to remain below Small Craft Advisory thresholds
through Wednesday night. Some gusts around 20 kt possible this
afternoon around the Cape and islands, especially across the
southern coastal waters.
Outlook /Wednesday Night through Sunday/...
Thursday: Moderate risk for Small Craft Advisory winds with
gusts up to 30 kt. Local rough seas. Chance of rain showers,
patchy fog.
Thursday Night: Moderate risk for Small Craft Advisory winds
with gusts up to 30 kt. Rough seas up to 8 ft. Slight chance of
rain showers.
Juneteenth: Low risk for Small Craft Advisory winds with gusts
up to 25 kt. Rough seas up to 7 ft. Slight chance of rain
showers.
Friday Night: Low risk for Small Craft Advisory winds with
gusts up to 25 kt. Seas up to 5 ft. Slight chance of rain
showers.
Saturday: Low risk for Small Craft Advisory winds with gusts up
to 25 kt. Seas up to 5 ft.
Saturday Night: Winds less than 25 kt. Seas up to 5 ft.
Sunday: Winds less than 25 kt. Areas of seas approaching 5 ft.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...None.
&&
$$
DISCUSSION...BW/Frank
AVIATION...BW/Frank
MARINE...BW/Frank
Meta data
Point forecast:
https://api.weather.gov/gridpoints/BOX/65,104/forecast
Zone forecast:
https://api.weather.gov/zones/forecast/MAZ014/forecast
Hourly forecast:
https://api.weather.gov/gridpoints/BOX/65,104/forecast/hourly
Hourly detail:
https://api.weather.gov/gridpoints/BOX/65,104
Point detail:
https://api.weather.gov/points/42.4399,-71.2405
Alerts:
https://api.weather.gov/alerts?active=1&point=42.4399,-71.2405
© 2026, LexMAWeather
@LexMAWeather@toot.community
@LexMAWeather.toot.community.ap.brid.gy
Site development based on the USA and Meteobridge templates from
Saratoga-Weather.org.
Additional code adapted from
SE Lincoln Weather Scripts.
Weather data and images courtesy the National Weather Service, Environmental Protection Agency, AirNow, Weather Underground / Intellicast, Vaisala Xweather (formerly AerisWeather), earth.nullschool.net, Windy.com, and Leaflet/OpenStreetMap