Lexington Weather

Current Conditions [‒] Current Conditions [+]

70.7°F Colder than last hour.

21.5°C

Comfortable

Clear

Tonight: Lo 55 °F

Wednesday: Hi 81 °F

Dew Point: 52.7°F Increased 1.4°F since last hour .

Humidity: 53% Increased 7.0% since last hour.

Air Quality Index: 28

Good

(Ozone)

Barometer: 29.73 in S

1007 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.00 in

Rain Monday: 0.02 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: Calm

Gusts: 0 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

NWS Weather Forecast -
Tonight, Wednesday, & Wednesday Night through Tuesday

Issued by:
National Weather Service Boston / Norton, MA
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

Thursday Night: Showers And Thunderstorms Likely then Partly Cloudy

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

Tuesday: Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms

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.

FULL FORECAST

NWS Hourly Forecast -
Tonight 8pm through Thu 7am

Issued by:
National Weather Service Boston / Norton, MA
Updated Tue Jun 16, 2026 7:09pm EDT

8:00pm

Partly Cloudy

69°F
Dew Pt 49°F
Wind from SW

SW 6 mph
Precip: 0%

9:00pm

Clear

67°F
Dew Pt 48°F
Wind from SW

SW 6 mph
Precip: 0%

10:00pm

Clear

64°F
Dew Pt 48°F
Wind from SW

SW 5 mph
Precip: 0%

11:00pm

Clear

62°F
Dew Pt 48°F
Wind from SW

SW 5 mph
Precip: 0%

Wed
12:00am

Clear

61°F
Dew Pt 49°F
Wind from SW

SW 3 mph
Precip: 0%

Wed
1:00am

Clear

59°F
Dew Pt 48°F
Wind from SW

SW 3 mph
Precip: 0%

Wed
2:00am

Clear

58°F
Dew Pt 48°F
Wind from SW

SW 2 mph
Precip: 0%

Wed
3:00am

Partly Cloudy

56°F
Dew Pt 48°F
Wind from SW

SW 2 mph
Precip: 0%

Wed
4:00am

Partly Cloudy

55°F
Dew Pt 48°F
Wind from SW

SW 2 mph
Precip: 0%

Wed
5:00am

Mostly Cloudy

56°F
Dew Pt 49°F
Wind from W

W 2 mph
Precip: 0%

Wed
6:00am

Mostly Sunny

58°F
Dew Pt 49°F
Wind from SW

SW 2 mph
Precip: 0%

Wed
7:00am

Mostly Sunny

61°F
Dew Pt 51°F
Wind from SW

SW 3 mph
Precip: 0%

Wed
8:00am

Mostly Sunny

65°F
Dew Pt 52°F
Wind from SW

SW 3 mph
Precip: 1%

Wed
9:00am

Partly Sunny

69°F
Dew Pt 52°F
Wind from SW

SW 5 mph
Precip: 1%

Wed
10:00am

Mostly Sunny

73°F
Dew Pt 51°F
Wind from S

S 5 mph
Precip: 1%

Wed
11:00am

Mostly Sunny

76°F
Dew Pt 50°F
Wind from S

S 6 mph
Precip: 2%

Wed
12:00pm

Mostly Sunny

78°F
Dew Pt 50°F
Wind from S

S 7 mph
Precip: 3%

Wed
1:00pm

Partly Sunny

79°F
Dew Pt 50°F
Wind from S

S 8 mph
Precip: 4%

Wed
2:00pm

Partly Sunny

79°F
Dew Pt 50°F
Wind from SE

SE 9 mph
Precip: 3%

Wed
3:00pm

Partly Sunny

79°F
Dew Pt 49°F
Wind from SE

SE 10 mph
Precip: 4%

Wed
4:00pm

Mostly Sunny

79°F
Dew Pt 50°F
Wind from SE

SE 10 mph
Precip: 4%

Wed
5:00pm

Mostly Sunny

78°F
Dew Pt 50°F
Wind from SE

SE 12 mph
Precip: 4%

Wed
6:00pm

Partly Cloudy

76°F
Dew Pt 51°F
Wind from SE

SE 10 mph
Precip: 4%

Wed
7:00pm

Partly Cloudy

74°F
Dew Pt 51°F
Wind from S

S 9 mph
Precip: 3%

Wed
8:00pm

Partly Cloudy

72°F
Dew Pt 51°F
Wind from S

S 8 mph
Precip: 1%

Wed
9:00pm

Partly Cloudy

70°F
Dew Pt 50°F
Wind from S

S 7 mph
Precip: 1%

Wed
10:00pm

Partly Cloudy

68°F
Dew Pt 51°F
Wind from S

S 7 mph
Precip: 0%

Wed
11:00pm

Mostly Clear

67°F
Dew Pt 51°F
Wind from S

S 6 mph
Precip: 2%

Thu
12:00am

Partly Cloudy

65°F
Dew Pt 52°F
Wind from S

S 5 mph
Precip: 1%

Thu
1:00am

Partly Cloudy

64°F
Dew Pt 53°F
Wind from S

S 5 mph
Precip: 0%

Thu
2:00am

Mostly Cloudy

63°F
Dew Pt 54°F
Wind from S

S 3 mph
Precip: 4%

Thu
3:00am

Mostly Cloudy

62°F
Dew Pt 55°F
Wind from S

S 3 mph
Precip: 7%

Thu
4:00am

Slight Chance Rain Showers

61°F
Dew Pt 56°F
Wind from S

S 3 mph
Precip: 18%

Thu
5:00am

Chance Rain Showers

62°F
Dew Pt 57°F
Wind from S

S 5 mph
Precip: 25%

Thu
6:00am

Slight Chance Rain Showers

62°F
Dew Pt 58°F
Wind from S

S 5 mph
Precip: 23%

Thu
7:00am

Chance Rain Showers

64°F
Dew Pt 59°F
Wind from S

S 6 mph
Precip: 38%

VIEW ON NWS WEB SITE

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

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