Lexington Weather

Current Conditions [‒] Current Conditions [+]

49.3°F Warmer than last hour.

9.6°C

Chilly

Clear

Today: Hi 51 °F

Tonight: Lo 38 °F

Dew Point: 19.9°F Decreased 1.1°F since last hour.

Humidity: 31% Decreased 3.0% since last hour.

Air Quality Index: 37

Good

(Ozone)

Barometer: 30.36 in Falling 0.04 inHg/hr

1028 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.00 in

Rain Saturday: 0.00 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: Calm

Gusts: 7 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

Alerts / Advisories [‒] Alerts / Advisories [+]

Southeast Middlesex County, MA - Special Weather Statement
- SEE ALL NEARBY ALERTS -

NEARBY ADVISORY DETAILS

REGIONAL ADVISORY DETAILS

OTHER ADVISORY SOURCES

Weather Underground Wundermap

NWS Weather Forecast -
Today, Tonight, & Monday through Saturday Night

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Sun Mar 29, 2026 8:32am EDT

Special Weather Statement

Today:

Sunny

Hi 51 °F

Sunny, with a high near 51. Southwest wind 7 to 12 mph, with gusts as high as 25 mph.

Tonight:

Mostly Cloudy

Lo 38 °F

Mostly cloudy, with a low around 38. Southwest wind 8 to 12 mph, with gusts as high as 23 mph.

Monday:

Mostly Cloudy

Hi 63 °F

Mostly cloudy, with a high near 63. Southwest wind 9 to 14 mph, with gusts as high as 26 mph.

Monday Night:

Mostly Cloudy then Slight Chance Light Rain

Lo 50 °F

A slight chance of rain after 5am. Mostly cloudy, with a low around 50. Southwest wind 5 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

Tuesday:

Chance Light Rain

Hi 68 °F

A chance of rain. Mostly cloudy, with a high near 68. Southwest wind 6 to 10 mph. Chance of precipitation is 40%.

Tuesday Night:

Chance Light Rain

Lo 50 °F

A chance of rain before 9pm, then a chance of rain and isolated thunderstorms. Mostly cloudy, with a low around 50. South wind around 12 mph. Chance of precipitation is 40%.

Wednesday:

Chance Light Rain

Hi 74 °F

A chance of rain and isolated thunderstorms. Mostly cloudy, with a high near 74. Southwest wind around 13 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

Wednesday Night:

Light Rain Likely then Rain And Snow Likely

Lo 40 °F

Rain likely before 5am, then rain and snow likely. Mostly cloudy, with a low around 40. Northwest wind 7 to 10 mph. Chance of precipitation is 60%.

Thursday:

Rain And Snow Likely

Hi 45 °F

Rain and snow likely. Mostly cloudy, with a high near 45. Northeast wind around 9 mph. Chance of precipitation is 60%.

Thursday Night:

Chance Light Rain then Chance Rain And Snow

Lo 36 °F

A chance of rain before 5am, then a chance of rain and snow. Mostly cloudy, with a low around 36. Northeast wind around 8 mph. Chance of precipitation is 50%.

Friday:

Rain And Snow Likely

Hi 44 °F

Rain and snow likely. Cloudy, with a high near 44. Northeast wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

Friday Night:

Rain And Snow Likely

Lo 37 °F

Rain and snow likely. Cloudy, with a low around 37. Northeast wind around 8 mph. Chance of precipitation is 70%.

Saturday:

Chance Light Rain

Hi 48 °F

A chance of rain. Cloudy, with a high near 48. Northeast wind around 9 mph. Chance of precipitation is 30%.

Saturday Night:

Chance Light Rain

Lo 41 °F

A chance of rain. Cloudy, with a low around 41. East wind around 8 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 2pm through Tue 1am

Issued by:
National Weather Service Boston / Norton, MA
Updated Sun Mar 29, 2026 8:32am EDT

2:00pm

Mostly Sunny

48°F
Dew Pt 16°F
Wind Chill: 43°F
Wind from SW

SW 12 mph
Precip: 1%

3:00pm

Mostly Sunny

49°F
Dew Pt 16°F
Wind Chill: 44°F
Wind from SW

SW 12 mph
Precip: 1%

4:00pm

Mostly Sunny

50°F
Dew Pt 16°F
Wind Chill: 46°F
Wind from SW

SW 12 mph
Precip: 1%

5:00pm

Sunny

50°F
Dew Pt 17°F
Wind Chill: 46°F
Wind from SW

SW 12 mph
Precip: 2%

6:00pm

Mostly Clear

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

SW 12 mph
Precip: 2%

7:00pm

Partly Cloudy

46°F
Dew Pt 21°F
Wind Chill: 41°F
Wind from SW

SW 10 mph
Precip: 2%

8:00pm

Mostly Clear

44°F
Dew Pt 23°F
Wind Chill: 39°F
Wind from S

S 9 mph
Precip: 3%

9:00pm

Mostly Clear

41°F
Dew Pt 25°F
Wind Chill: 35°F
Wind from S

S 9 mph
Precip: 4%

10:00pm

Mostly Clear

40°F
Dew Pt 26°F
Wind Chill: 34°F
Wind from S

S 9 mph
Precip: 4%

11:00pm

Partly Cloudy

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

SW 9 mph
Precip: 5%

Mon
12:00am

Mostly Cloudy

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

SW 8 mph
Precip: 4%

Mon
1:00am

Mostly Cloudy

40°F
Dew Pt 29°F
Wind Chill: 35°F
Wind from SW

SW 8 mph
Precip: 4%

Mon
2:00am

Mostly Cloudy

40°F
Dew Pt 30°F
Wind Chill: 35°F
Wind from SW

SW 8 mph
Precip: 5%

Mon
3:00am

Cloudy

40°F
Dew Pt 30°F
Wind Chill: 35°F
Wind from SW

SW 8 mph
Precip: 5%

Mon
4:00am

Cloudy

40°F
Dew Pt 31°F
Wind Chill: 35°F
Wind from SW

SW 8 mph
Precip: 5%

Mon
5:00am

Cloudy

41°F
Dew Pt 31°F
Wind Chill: 35°F
Wind from SW

SW 9 mph
Precip: 6%

Mon
6:00am

Cloudy

41°F
Dew Pt 32°F
Wind Chill: 35°F
Wind from SW

SW 9 mph
Precip: 5%

Mon
7:00am

Cloudy

42°F
Dew Pt 34°F
Wind Chill: 36°F
Wind from SW

SW 9 mph
Precip: 4%

Mon
8:00am

Mostly Cloudy

43°F
Dew Pt 35°F
Wind Chill: 38°F
Wind from SW

SW 9 mph
Precip: 1%

Mon
9:00am

Mostly Cloudy

46°F
Dew Pt 35°F
Wind Chill: 41°F
Wind from SW

SW 10 mph
Precip: 1%

Mon
10:00am

Mostly Cloudy

49°F
Dew Pt 35°F
Wind Chill: 45°F
Wind from SW

SW 12 mph
Precip: 1%

Mon
11:00am

Mostly Cloudy

53°F
Dew Pt 36°F
Wind from SW

SW 12 mph
Precip: 1%

Mon
12:00pm

Mostly Cloudy

56°F
Dew Pt 37°F
Wind from SW

SW 13 mph
Precip: 1%

Mon
1:00pm

Mostly Cloudy

59°F
Dew Pt 37°F
Wind from SW

SW 13 mph
Precip: 2%

Mon
2:00pm

Mostly Cloudy

61°F
Dew Pt 38°F
Wind from SW

SW 14 mph
Precip: 2%

Mon
3:00pm

Mostly Cloudy

63°F
Dew Pt 39°F
Wind from SW

SW 14 mph
Precip: 2%

Mon
4:00pm

Mostly Cloudy

63°F
Dew Pt 39°F
Wind from SW

SW 13 mph
Precip: 3%

Mon
5:00pm

Partly Sunny

62°F
Dew Pt 40°F
Wind from SW

SW 12 mph
Precip: 3%

Mon
6:00pm

Mostly Cloudy

61°F
Dew Pt 41°F
Wind from SW

SW 10 mph
Precip: 3%

Mon
7:00pm

Mostly Cloudy

60°F
Dew Pt 41°F
Wind from SW

SW 9 mph
Precip: 4%

Mon
8:00pm

Mostly Cloudy

58°F
Dew Pt 42°F
Wind from SW

SW 8 mph
Precip: 2%

Mon
9:00pm

Mostly Cloudy

56°F
Dew Pt 43°F
Wind from SW

SW 8 mph
Precip: 2%

Mon
10:00pm

Mostly Cloudy

54°F
Dew Pt 43°F
Wind from SW

SW 7 mph
Precip: 2%

Mon
11:00pm

Partly Cloudy

53°F
Dew Pt 44°F
Wind from SW

SW 7 mph
Precip: 3%

Tue
12:00am

Mostly Cloudy

53°F
Dew Pt 44°F
Wind from SW

SW 7 mph
Precip: 4%

Tue
1:00am

Mostly Cloudy

53°F
Dew Pt 45°F
Wind from SW

SW 6 mph
Precip: 5%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 291811
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
211 PM EDT Sun Mar 29 2026

.WHAT HAS CHANGED...
The risk for wintry precipitation is lower for Thursday but several 
days of cool, overcast and raw weather look to be in store for late 
week into the first weekend in April.

&&

.KEY MESSAGES...

- Breezy and unseasonably mild Monday away from the south coast. 

- Period of above normal temperatures Tuesday and Wednesday,
  with a chance for low to mid 70s highs on Wednesday. 
  Nighttime lows Tuesday night could be significantly above 
  normal. Cold front moves in Wednesday afternoon and night 
  bringing showers and a low chance for a rumble or two of 
  thunder. 

- Overcast, cool and raw weather Thursday through Saturday on
  northeast winds. Intermittent rain showers possible but better
  chance for rain on Friday as frontal boundary shifts
  southward.

&&

.DISCUSSION...
KEY MESSAGE 1...Breezy and unseasonably mild Monday away from the 
south coast. 

High pres moves offshore tonight and Monday with SW flow continuing. 
This will result in a milder night tonight and an unseasonably mild 
day Mon in the interior valleys. 925 mb temps increase to 8-10C so 
temps should reach the mid-upper 60s across CT valley and interior 
NE MA with mid 50s along the south coast. Dry weather expected 
through Mon although there will be enough mid-high clouds around to 
limit sunshine at times but overall a partly sunny day expected. It 
will also be rather breezy, especially near the coast as a 40-60 kt 
low level jet develops. The jet is above a low level inversion which 
will prevent these stronger winds from mixing down but soundings 
show a shallow mixed layer supportive of 25-35 mph gusts. 

A backdoor front will push south from northern New Eng and may get 
into NE MA by Tue morning. Continued SW flow and advection of higher 
dewpoint air into SNE will result in areas of stratus developing and 
can't rule out patchy drizzle overnight along with a few showers as 
higher PWATs move in. Cloud cover and SW flow will keep low 
temps in the 40s to near 50 in the CT valley.

KEY MESSAGE 2...Period of above normal temperatures Tuesday and 
Wednesday, with a chance for low to mid 70s highs on Wednesday. 
Nighttime lows Tuesday night could be significantly above normal. 
Cold front moves in Wednesday afternoon and night bringing showers 
and a low chance for a rumble or two of thunder. 

Challenging temperature forecast for Tuesday as a backdoor cold 
front tries to slip southward out of NH/ME into northern MA, while 
increasingly milder southerly flow builds into CT and western MA. 
Considerable cloudiness in all areas though, but nebulous forcing 
(better to our north and west), a modest increase in PWATs with 
drier air aloft probably favors very light rain or drizzle. Daytime 
max temps could struggle to get into the low 50s Tuesday in 
NE/eastern MA, but the further south and west one goes, better 
chance at highs in the 60s. 

The warmer air aloft advecting in eventually wins out though, as 
southerly winds and continued overcast allow for a mild and 
increasingly moist Tue night. Highs for the day in NE MA could occur 
closer to midnight, but elsewhere, temps may not fall very far 
and/or rise some with values in the mid 50s. Potential exists for 
one of the milder nights we've seen in a while, and there's a chance 
sites like Hartford, Springfield and surrounding towns stay above 60 
degrees for lows. 

Coming out of a likely very mild and breezy Tuesday night, Wednesday 
still looks to be a quite mild day away from the south coast as 850 
mb temps warm to +10 to +12C and 925 temps sit around 14 to +17C. 
Potential exists for highs in the mid 70s in some of the usually 
warmer spots (CT Merrimack Valleys) with upper 60s/low 70s elsewhere 
away from the south coast where highs will be kept cooler in the 
50s/lower 60s given SW winds off the water. How warm we ultimately 
get will depend on the still-unclear timing of a cold front that 
will be shifting southeastward. Front also brings a better chance 
for at least showers, but with a low chance for a rumble or two of 
thunder based on narrow CAPE profiles with surface-based CAPEs 
around 500 J/kg. Front should have made it into the southern waters 
by overnight, with temps on the downswing into the upper 30s to mid 
40s as the front moves south. 

KEY MESSAGE 3...Overcast, cool and raw weather Thursday through 
Saturday on northeast winds. Intermittent rain showers possible but 
better chance for rain on Friday as frontal boundary shifts 
southward.

The late-week/early weekend period is the cooler, overcast and raw 
portion of the forecast. Increasing NE winds as shallow near-surface 
colder air filters southward, but temps aloft remain quite warm 
under SWly 850-500 mb flow with 925 mb temps around +2 to +8C. 
Although the threat for wintry precipitation looks minimal now, this 
pattern will maintain low clouds with intermittent showers and 
likely lead to a pretty raw day on Thurs. NBM temps in the mid 40s 
to low 50s are almost certainly too optimistic following its typical 
diurnal temperature curve, and that's very probably not appropriate 
given overcast and persistent NE winds. Plenty of room to go lower 
on temps in future updates but potential exists for widespread upper 
30s to mid 40s with NE winds Thurs around 10-15 mph. Temps probably 
not going very far either Thurs night or Fri with highs in the mid 
40s, with a better shot at widespread rain Fri as a cool front moves 
in from NY. 

We again repeat the same weather pattern Sat as the same one from 
Thurs, with shallow cool air on NE winds and persistent low 
clouds under a continued mild profile of air aloft. 

&&

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

Through Monday...High Confidence.

VFR. SW gusts to 25 kt drop off tonight then redevelop Mon with 
gusts to 25-30 kt. Areas of LLWS develops late tonight and Mon over 
the Cape/Islands with a strengthening low level jet. 

Monday Night...Moderate Confidence.

Areas of MVFR-IFR stratus developing, first over the Cape/Islands 
during the evening then expanding inland overnight. Timing of lower 
cigs and areas extent is uncertain. A few showers or 
patchy drizzle developing overnight. 

KBOS Terminal...High confidence in TAF. 

KBDL Terminal...High confidence in TAF.

Outlook /Tuesday through Friday/...

Tuesday: Mainly MVFR, with local IFR possible. Breezy. Slight
chance RA.

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

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

Wednesday Night: Mainly MVFR, with areas VFR possible. Breezy.
Chance RA, isolated TSRA.

Thursday: Mainly MVFR, with local IFR possible. Breezy. Chance
RA.

Thursday Night: Mainly MVFR, with areas IFR possible. Breezy.
Chance RA.

Friday: Mainly MVFR, with local IFR possible. Breezy. Chance
RA.

&&

.MARINE...
Forecaster Confidence Levels...

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

Persistent gusty SW winds will continue into Monday. Winds may 
briefly drop off a bit tonight, but increase again Mon with 
gusts up to 30 kt. The gusty winds will linger into Mon evening 
over the south coastal waters before diminishing as the LLJ 
moves offshore. We extended the SCA into Mon night as hazardous 
seas linger after the winds drop below SCA. 

Outlook /Tuesday through Friday/...

Tuesday: Low risk for Small Craft Advisory winds with gusts up
to 25 kt. Areas of rough seas. Slight chance of rain. Local
visibility 1 to 3 nm.

Tuesday Night: Strong winds with gusts up to 35 kt. Rough seas
up to 13 ft. 

Wednesday: Strong winds with gusts up to 35 kt. Rough seas up
to 12 ft. Chance of rain, isolated thunderstorms. 

Wednesday Night: Winds less than 25 kt. Areas of rough seas.
Chance of rain, isolated thunderstorms. 

Thursday: Low risk for Small Craft Advisory winds with gusts up
to 25 kt. Seas up to 5 ft. Chance of rain. 

Thursday Night through Friday: Winds less than 25 kt. Seas up
to 5 ft. Chance of rain. 

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 8 PM EDT Monday for ANZ230-236.
     Small Craft Advisory until 11 PM EDT Monday for ANZ231-250-251.
     Small Craft Advisory until 2 AM EDT Tuesday for ANZ232>234.
     Small Craft Advisory until 8 AM EDT Tuesday for ANZ235-237-
     254>256.

&&

$$

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

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