Lexington Weather

Current Conditions [‒] Current Conditions [+]

37.8°F Warmer than last hour.

3.2°C

Chilly

Mostly cloudy

This Afternoon: Hi 38 °F

Tonight: Lo 25 °F

Dew Point: 11.8°F Increased 2.1°F since last hour .

Humidity: 34% Increased 2.0% since last hour.

Air Quality Index: 34

Good

(Ozone)

Barometer: 30.30 in Falling 0.02 inHg/hr

1026 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.00 in

Rain Friday: 0.09 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: Calm

Gusts: 1 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

NWS Weather Forecast -
This Afternoon, Tonight, & Sunday through Friday Night

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Sat Mar 28, 2026 1:54pm EDT

This Afternoon:

Partly Sunny

Hi 38 °F

Partly sunny, with a high near 38. Northwest wind around 9 mph.

Tonight:

Partly Cloudy

Lo 25 °F

Partly cloudy, with a low around 25. West wind 5 to 8 mph.

Sunday:

Sunny

Hi 49 °F

Sunny, with a high near 49. Southwest wind 5 to 13 mph, with gusts as high as 25 mph.

Sunday Night:

Mostly Cloudy

Lo 38 °F

Mostly cloudy, with a low around 38. Southwest wind 8 to 12 mph, with gusts as high as 24 mph.

Monday:

Partly Sunny

Hi 63 °F

Partly sunny, with a high near 63. Southwest wind 8 to 12 mph, with gusts as high as 24 mph.

Monday Night:

Mostly Cloudy then Slight Chance Light Rain

Lo 49 °F

A slight chance of rain after 4am. Mostly cloudy, with a low around 49. Southwest wind 6 to 10 mph.

Tuesday:

Slight Chance Light Rain then Slight Chance Rain Showers

Hi 68 °F

A slight chance of rain before 8am, then a slight chance of rain showers between 8am and 2pm. Mostly cloudy, with a high near 68. Southwest wind 5 to 10 mph.

Tuesday Night:

Chance Rain Showers

Lo 56 °F

A chance of rain showers after 10pm. Mostly cloudy, with a low around 56. Southwest wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

Wednesday:

Chance Rain Showers

Hi 72 °F

A chance of rain showers. Partly sunny, with a high near 72. Southwest wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

Wednesday Night:

Light Rain Likely

Lo 37 °F

A chance of rain showers before 9pm, then rain likely. Mostly cloudy, with a low around 37. Northwest wind around 10 mph. Chance of precipitation is 60%.

Thursday:

Chance Light Rain

Hi 42 °F

A chance of rain. Mostly cloudy, with a high near 42. Northeast wind around 9 mph. Chance of precipitation is 40%.

Thursday Night:

Chance Light Snow

Lo 34 °F

A chance of rain before 9pm, then a chance of snow between 9pm and 5am, then a chance of rain and snow. Mostly cloudy, with a low around 34. Northeast wind around 8 mph. Chance of precipitation is 40%.

Friday:

Chance Rain And Snow

Hi 41 °F

A chance of rain and snow. Cloudy, with a high near 41. East wind 8 to 12 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

Friday Night:

Chance Light Rain

Lo 35 °F

A chance of rain. Cloudy, with a low around 35. Northeast wind 6 to 9 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 2pm through Mon 1am

Issued by:
National Weather Service Boston / Norton, MA
Updated Sat Mar 28, 2026 1:54pm EDT

2:00pm

Partly Sunny

37°F
Dew Pt 6°F
Wind Chill: 32°F
Wind from NW

NW 9 mph
Precip: 0%

3:00pm

Partly Sunny

38°F
Dew Pt 6°F
Wind Chill: 33°F
Wind from NW

NW 9 mph
Precip: 1%

4:00pm

Partly Sunny

38°F
Dew Pt 7°F
Wind Chill: 33°F
Wind from NW

NW 9 mph
Precip: 3%

5:00pm

Mostly Cloudy

37°F
Dew Pt 8°F
Wind Chill: 32°F
Wind from NW

NW 9 mph
Precip: 4%

6:00pm

Mostly Cloudy

37°F
Dew Pt 10°F
Wind Chill: 32°F
Wind from NW

NW 8 mph
Precip: 4%

7:00pm

Mostly Cloudy

35°F
Dew Pt 11°F
Wind Chill: 30°F
Wind from W

W 7 mph
Precip: 3%

8:00pm

Mostly Cloudy

33°F
Dew Pt 14°F
Wind Chill: 28°F
Wind from W

W 6 mph
Precip: 2%

9:00pm

Partly Cloudy

33°F
Dew Pt 15°F
Wind Chill: 28°F
Wind from W

W 6 mph
Precip: 1%

10:00pm

Partly Cloudy

30°F
Dew Pt 16°F
Wind Chill: 24°F
Wind from W

W 6 mph
Precip: 1%

11:00pm

Mostly Clear

29°F
Dew Pt 15°F
Wind Chill: 23°F
Wind from W

W 6 mph
Precip: 0%

Sun
12:00am

Clear

29°F
Dew Pt 14°F
Wind Chill: 23°F
Wind from NW

NW 6 mph
Precip: 0%

Sun
1:00am

Clear

28°F
Dew Pt 13°F
Wind Chill: 22°F
Wind from NW

NW 6 mph
Precip: 0%

Sun
2:00am

Clear

27°F
Dew Pt 13°F
Wind Chill: 20°F
Wind from NW

NW 6 mph
Precip: 0%

Sun
3:00am

Clear

27°F
Dew Pt 13°F
Wind Chill: 22°F
Wind from W

W 5 mph
Precip: 0%

Sun
4:00am

Mostly Clear

26°F
Dew Pt 13°F
Wind Chill: 20°F
Wind from W

W 5 mph
Precip: 1%

Sun
5:00am

Mostly Clear

26°F
Dew Pt 13°F
Wind Chill: 20°F
Wind from W

W 5 mph
Precip: 1%

Sun
6:00am

Sunny

26°F
Dew Pt 14°F
Wind Chill: 20°F
Wind from SW

SW 5 mph
Precip: 1%

Sun
7:00am

Sunny

27°F
Dew Pt 14°F
Wind Chill: 22°F
Wind from SW

SW 5 mph
Precip: 1%

Sun
8:00am

Sunny

31°F
Dew Pt 15°F
Wind Chill: 25°F
Wind from SW

SW 6 mph
Precip: 1%

Sun
9:00am

Sunny

34°F
Dew Pt 16°F
Wind Chill: 29°F
Wind from SW

SW 6 mph
Precip: 1%

Sun
10:00am

Sunny

37°F
Dew Pt 16°F
Wind Chill: 32°F
Wind from SW

SW 7 mph
Precip: 1%

Sun
11:00am

Sunny

41°F
Dew Pt 17°F
Wind Chill: 36°F
Wind from SW

SW 8 mph
Precip: 1%

Sun
12:00pm

Sunny

43°F
Dew Pt 17°F
Wind Chill: 38°F
Wind from SW

SW 10 mph
Precip: 1%

Sun
1:00pm

Mostly Sunny

46°F
Dew Pt 19°F
Wind Chill: 41°F
Wind from SW

SW 10 mph
Precip: 1%

Sun
2:00pm

Mostly Sunny

47°F
Dew Pt 18°F
Wind Chill: 42°F
Wind from SW

SW 12 mph
Precip: 1%

Sun
3:00pm

Mostly Sunny

48°F
Dew Pt 19°F
Wind Chill: 43°F
Wind from SW

SW 13 mph
Precip: 1%

Sun
4:00pm

Sunny

49°F
Dew Pt 19°F
Wind Chill: 45°F
Wind from SW

SW 12 mph
Precip: 2%

Sun
5:00pm

Sunny

49°F
Dew Pt 19°F
Wind Chill: 45°F
Wind from SW

SW 12 mph
Precip: 2%

Sun
6:00pm

Mostly Clear

49°F
Dew Pt 22°F
Wind Chill: 45°F
Wind from SW

SW 12 mph
Precip: 2%

Sun
7:00pm

Mostly Clear

46°F
Dew Pt 23°F
Wind Chill: 41°F
Wind from SW

SW 10 mph
Precip: 3%

Sun
8:00pm

Mostly Clear

44°F
Dew Pt 24°F
Wind Chill: 39°F
Wind from SW

SW 9 mph
Precip: 2%

Sun
9:00pm

Partly Cloudy

41°F
Dew Pt 26°F
Wind Chill: 35°F
Wind from SW

SW 9 mph
Precip: 2%

Sun
10:00pm

Partly Cloudy

39°F
Dew Pt 27°F
Wind Chill: 33°F
Wind from SW

SW 9 mph
Precip: 1%

Sun
11:00pm

Mostly Cloudy

40°F
Dew Pt 27°F
Wind Chill: 34°F
Wind from SW

SW 9 mph
Precip: 0%

Mon
12:00am

Mostly Cloudy

39°F
Dew Pt 28°F
Wind Chill: 33°F
Wind from SW

SW 9 mph
Precip: 0%

Mon
1:00am

Mostly Cloudy

39°F
Dew Pt 29°F
Wind Chill: 33°F
Wind from SW

SW 8 mph
Precip: 0%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 281756
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
156 PM EDT Sat Mar 28 2026

.WHAT HAS CHANGED...
After a couple of unseasonably mild days around midweek, 
temperatures then tumble into the 30s to lower 40s on northeast
winds late in the week. Wintry precipitation possible in 
interior Southern New England Thurs or Fri but uncertain on the 
timing.

&&

.KEY MESSAGES...

- Mainly dry weather with a warming trend through Monday.

- Unseasonably mild with breezy southwest winds for midweek,
  with highs in the 60s and possibly into the 70s with enough 
  breaks in cloud cover. Best chance for showers, possibly a 
  rumble or two of thunder Wed afternoon and evening as cold 
  front lurches slowly offshore overnight.

- Much colder and more unsettled late week, with highs in the
  30s/lower 40s on NE winds. Rain and possibly wintry precip
  potential either Thurs or Fri but timing is uncertain.

&&

.DISCUSSION...
KEY MESSAGE 1...Mainly dry weather with a warming trend through 
Monday.

Upper trough and cold pool moves through this afternoon then 
offshore this evening. There may be a few snow showers spilling into 
NW MA through this afternoon with its passage, otherwise dry
weather tonight and lasting into Monday with dry NW flow aloft
in place. High pressure will be the dominant feature as it 
builds south of New Eng tonight, before moving offshore Sunday 
into Monday. There will be periods of mid-high cloud cover at 
times as the polar jet will set up across New Eng, but overall 
partly to mostly sunny skies during the day. With return SW flow
developing Sunday, a moderating trend will begin with temps 
reaching 45-50F. Decent pressure gradient develops so it will be
breezy with soundings showing a well mixed boundary layer 
supportive of 20-30 mph gusts at times. Further warming expected
on Monday as 925 mb temps reach 8-10C Mon which supports highs 
into the low-mid 60s. 

KEY MESSAGE 2...Unseasonably mild and turning breezy for midweek, 
with highs in the 60s and possibly into the 70s with enough breaks 
in cloud cover. Best chance for showers, possibly a rumble or two of 
thunder Wed afternoon and evening as cold front lurches slowly 
offshore overnight.

A frontal system moving through the Upper Midwest and Gt Lakes 
region will draw an unseasonably mild airmass into the Northeast 
states Tue and Wed on SWly low-level winds of 40-50 kt at 925 mb. 
This supports a spell of mild temperatures centered around midweek; 
biggest potential fly in the ointment is there should be at least 
some cloud cover around, which opens the door for questions on how 
much diurnal insolation we can realize. Even still, with 925 mb 
temps on the order of +14 to +16C and 850 mb temps in the +10 to 
+12C range, even some cloud cover should offer highs at least in the 
60s, with a conditional shot at 70s if we can generate any 
persistent breaks in cloudiness. Tue night also looks quite mild 
with lows only falling into the 50s, so could be a night to open up 
the windows. SW winds would see to favor milder temperatures making 
it all the way to the coast without a risk for seabreezes, and 
that's especially the case for Wed ahead of a cold front, with 
pretty strong SWly winds aloft supporting SW wind gusts into the 25-
35 mph range. 

There could be some hit-or-miss light rains Tue as the warmer air 
aloft starts to come in, but the better chance for showers is along 
the frontal system's cold front which moves in Wed afternoon and 
into Wed evening. Low chance for a rumble or two of thunder during 
the daytime hrs Wed too given weak instability. Front then moves 
more slowly moving offshore overnight to early Thurs. Will have to 
watch how slowly this front pushes offshore as recent ECMWF guidance 
showing a possible secondary low forming along the slowing frontal 
zone into early Thurs, which would mean lingering rain into the 
early morning hours Thurs along the southern roughly third of 
Southern New England.

KEY MESSAGE 3...Much colder and more unsettled late week with highs 
in the 30s/lower 40s on NE winds. Rain and possibly wintry precip 
potential either Thurs or Fri but timing is uncertain.

Much cooler and more unsettled weather for late in the week. The 
cold front from midweek should have made it far enough offshore 
Thurs to allow for a shallow cold airmass to advect southeast 
associated with a 1040+ mb high pressure cell over northeast ME. 925 
mb temps drop from around +14-16C from Wed afternoon and then tumble 
down to a chilly 0 to -2C by Thurs, some 24 hours later on 
increasing NE winds. Partly to mostly cloudy skies both Thurs and 
Fri will only keep highs in the mid 30s to mid 40s at best. So we'll 
go from opening up your windows to closing them and possibly needing 
to turn the heat on late in the week; typical late-March weather in 
New England. 

The bigger issue here though is the arrival of the next frontal 
system. GFS/GEFS is more progressive/earliest arrival being closer 
to Thurs, while the ECMWF/EPS is closer to Friday. That'll be 
important because the potential exists for some wintry precip at 
onset in at least interior Southern New England pending surface 
temps. So some potential for wintry precip again as we close out the 
month of March, but at this day-6/day-7 timeframe it's unclear if it 
ends up being Thurs or Fri. 

&&

.AVIATION /18Z SATURDAY THROUGH THURSDAY/...
Low - less than 30 percent. 
Moderate - 30 to 60 percent. 
High - greater than 60 percent.

Tonight through Sunday night...High Confidence

VFR through the period. NW winds 10-20 kts this afternoon with 
local sea-breezes along eastern MA coast. Diminishing wind 
tonight becoming SW by daybreak then gusts to 25 kt developing 
in the afternoon. S-SW wind 5-15 kt Sun night. 

KBOS Terminal...High confidence in TAF. 

KBDL Terminal...High confidence in TAF.

Outlook /Monday through Thursday/...

Monday: VFR. Windy with local gusts up to 30 kt. 

Monday Night: Mainly VFR, with areas MVFR possible. Breezy.
Slight chance RA.

Tuesday: Mainly VFR, with areas MVFR possible. Windy with local
gusts up to 30 kt. Slight chance SHRA.

Tuesday Night: Mainly VFR, with areas MVFR possible. Windy with
gusts up to 35 kt. Slight chance SHRA.

Wednesday: Mainly MVFR, with areas VFR possible. Windy with
gusts up to 35 kt. Chance SHRA.

Wednesday Night: MVFR/IFR conditions possible. Breezy. Chance
RA.

Thursday: MVFR. Breezy. Chance RA.

&&

.MARINE...
Forecaster Confidence Levels...

Low - less than 30 percent. 
Moderate - 30 to 60 percent. 
High - greater than 60 percent.

NW winds below SCA thresholds tonight, then becoming SW Sunday 
with gusts to 25 kt developing in the afternoon/evening. SCA 
issued for most of the waters.

Outlook /Monday through Thursday/...

Monday: Moderate risk for Small Craft Advisory winds with local
gusts up to 30 kt. Local rough seas. 

Monday Night: Low risk for Small Craft Advisory winds with
gusts up to 25 kt. Local rough seas. Slight chance of rain. 

Tuesday: Moderate risk for Small Craft Advisory winds with
gusts up to 30 kt. Areas of rough seas. Slight chance of rain
showers. 

Tuesday Night: Strong winds with gusts up to 40 kt. Rough seas
up to 14 ft. Slight chance of rain showers. 

Wednesday: Strong winds with gusts up to 35 kt. Rough seas up
to 13 ft. Chance of rain showers. 

Wednesday Night: Winds less than 25 kt. Areas of rough seas.
Rain. 

Thursday: Low risk for Small Craft Advisory winds with gusts up
to 25 kt. Areas of rough seas. Chance of rain. 

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory from noon to 8 PM EDT Sunday for 
     ANZ230>237-251.
     Small Craft Advisory from noon Sunday to 2 AM EDT Monday for 
     ANZ250-254.

&&

$$

DISCUSSION...KJC/Loconto
AVIATION...KJC
MARINE...KJC

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