Lexington Weather

Current Conditions [‒] Current Conditions [+]

58.8°F Colder than last hour.

14.9°C

Cool

Clear

This Afternoon: Hi 64 °F

Tonight: Lo 47 °F

Dew Point: 45.9°F Decreased 0.3°F since last hour.

Humidity: 62% Increased 2.0% since last hour.

Air Quality Index: 21

Good

(Fine Particles)

Barometer: 30.49 in S

1033 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.00 in

Rain Tuesday: 0.00 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: Calm

Gusts: 0 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

NWS Weather Forecast -
This Afternoon, Tonight, & Thursday through Tuesday Night

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Wed Sep 23, 2026 3:22pm EDT

Overview:

- Dry, cool, and breezy weather continues through Thursday.

- An anomalous early season strong coastal storm will impact the region with strong winds and coastal flooding/erosion Friday and Saturday, especially eastern MA.

This Afternoon:

Mostly Sunny

Hi 64 °F

Mostly sunny, with a high near 64. Northeast wind around 12 mph, with gusts as high as 25 mph.

Tonight:

Mostly Clear

Lo 47 °F

Mostly clear, with a low around 47. Northeast wind 6 to 9 mph.

Thursday:

Mostly Sunny

Hi 63 °F

Mostly sunny, with a high near 63. Northeast wind 8 to 12 mph, with gusts as high as 25 mph.

Thursday Night:

Mostly Cloudy

Lo 51 °F

Mostly cloudy, with a low around 51. Northeast wind 7 to 12 mph, with gusts as high as 23 mph.

Friday:

Mostly Cloudy then Chance Light Rain

Hi 63 °F

A chance of rain after 1pm. Mostly cloudy, with a high near 63. North wind 12 to 15 mph, with gusts as high as 38 mph. Chance of precipitation is 40%.

Friday Night:

Light Rain Likely

Lo 54 °F

Rain likely. Cloudy, with a low around 54. North wind around 17 mph, with gusts as high as 37 mph. Chance of precipitation is 70%.

Saturday:

Light Rain

Hi 60 °F

Rain. Mostly cloudy, with a high near 60. North wind around 17 mph, with gusts as high as 38 mph. Chance of precipitation is 80%.

Saturday Night:

Rain Showers

Lo 54 °F

Rain before 8pm, then rain showers. Cloudy, with a low around 54. North wind around 16 mph, with gusts as high as 36 mph. Chance of precipitation is 80%.

Sunday:

Rain Showers

Hi 60 °F

Rain showers. Cloudy, with a high near 60. North wind around 16 mph, with gusts as high as 33 mph. Chance of precipitation is 80%.

Sunday Night:

Rain Showers

Lo 54 °F

Rain showers. Cloudy, with a low around 54. North wind around 14 mph, with gusts as high as 31 mph. Chance of precipitation is 80%.

Monday:

Chance Rain Showers

Hi 62 °F

A chance of rain showers. Mostly cloudy, with a high near 62. North wind 6 to 12 mph. Chance of precipitation is 50%.

Monday Night:

Chance Rain Showers then Mostly Cloudy

Lo 53 °F

A chance of rain showers before 11pm. Mostly cloudy, with a low around 53. Northwest wind around 5 mph. Chance of precipitation is 30%.

Tuesday:

Mostly Sunny

Hi 68 °F

Mostly sunny, with a high near 68. Northwest wind around 5 mph.

Tuesday Night:

Partly Cloudy

Lo 53 °F

Partly cloudy, with a low around 53. Southwest wind around 3 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 5pm through Fri 4am

Issued by:
National Weather Service Boston / Norton, MA
Updated Wed Sep 23, 2026 3:22pm EDT

5:00pm

Mostly Sunny

61°F
Dew Pt 48°F
Wind from NE

NE 12 mph
Precip: 1%

6:00pm

Mostly Clear

58°F
Dew Pt 48°F
Wind from NE

NE 9 mph
Precip: 1%

7:00pm

Mostly Clear

56°F
Dew Pt 48°F
Wind from NE

NE 8 mph
Precip: 0%

8:00pm

Mostly Clear

54°F
Dew Pt 47°F
Wind from NE

NE 7 mph
Precip: 0%

9:00pm

Clear

53°F
Dew Pt 47°F
Wind from NE

NE 7 mph
Precip: 0%

10:00pm

Mostly Clear

52°F
Dew Pt 47°F
Wind from NE

NE 6 mph
Precip: 0%

11:00pm

Mostly Clear

52°F
Dew Pt 46°F
Wind from NE

NE 6 mph
Precip: 0%

Thu
12:00am

Clear

51°F
Dew Pt 47°F
Wind from NE

NE 6 mph
Precip: 0%

Thu
1:00am

Clear

50°F
Dew Pt 47°F
Wind Chill: 48°F
Wind from NE

NE 6 mph
Precip: 0%

Thu
2:00am

Clear

50°F
Dew Pt 47°F
Wind Chill: 48°F
Wind from N

N 6 mph
Precip: 0%

Thu
3:00am

Clear

49°F
Dew Pt 48°F
Wind Chill: 46°F
Wind from N

N 7 mph
Precip: 0%

Thu
4:00am

Mostly Clear

49°F
Dew Pt 48°F
Wind Chill: 46°F
Wind from N

N 7 mph
Precip: 0%

Thu
5:00am

Partly Cloudy

48°F
Dew Pt 48°F
Wind Chill: 44°F
Wind from N

N 8 mph
Precip: 0%

Thu
6:00am

Sunny

47°F
Dew Pt 47°F
Wind Chill: 43°F
Wind from N

N 8 mph
Precip: 0%

Thu
7:00am

Mostly Sunny

47°F
Dew Pt 47°F
Wind Chill: 43°F
Wind from N

N 8 mph
Precip: 0%

Thu
8:00am

Mostly Sunny

49°F
Dew Pt 48°F
Wind Chill: 46°F
Wind from N

N 8 mph
Precip: 0%

Thu
9:00am

Mostly Sunny

53°F
Dew Pt 49°F
Wind from NE

NE 9 mph
Precip: 0%

Thu
10:00am

Mostly Sunny

58°F
Dew Pt 50°F
Wind from NE

NE 12 mph
Precip: 0%

Thu
11:00am

Sunny

60°F
Dew Pt 50°F
Wind from NE

NE 12 mph
Precip: 0%

Thu
12:00pm

Mostly Sunny

62°F
Dew Pt 49°F
Wind from NE

NE 12 mph
Precip: 0%

Thu
1:00pm

Mostly Sunny

62°F
Dew Pt 49°F
Wind from NE

NE 12 mph
Precip: 0%

Thu
2:00pm

Sunny

63°F
Dew Pt 49°F
Wind from NE

NE 12 mph
Precip: 0%

Thu
3:00pm

Sunny

63°F
Dew Pt 48°F
Wind from NE

NE 12 mph
Precip: 0%

Thu
4:00pm

Mostly Sunny

62°F
Dew Pt 47°F
Wind from NE

NE 12 mph
Precip: 0%

Thu
5:00pm

Partly Sunny

62°F
Dew Pt 46°F
Wind from NE

NE 10 mph
Precip: 0%

Thu
6:00pm

Mostly Cloudy

60°F
Dew Pt 46°F
Wind from NE

NE 9 mph
Precip: 0%

Thu
7:00pm

Partly Cloudy

58°F
Dew Pt 46°F
Wind from NE

NE 8 mph
Precip: 0%

Thu
8:00pm

Mostly Cloudy

57°F
Dew Pt 45°F
Wind from NE

NE 7 mph
Precip: 0%

Thu
9:00pm

Partly Cloudy

54°F
Dew Pt 45°F
Wind from NE

NE 7 mph
Precip: 0%

Thu
10:00pm

Mostly Cloudy

54°F
Dew Pt 45°F
Wind from NE

NE 7 mph
Precip: 0%

Thu
11:00pm

Mostly Cloudy

53°F
Dew Pt 45°F
Wind from N

N 7 mph
Precip: 0%

Fri
12:00am

Partly Cloudy

53°F
Dew Pt 46°F
Wind from N

N 7 mph
Precip: 1%

Fri
1:00am

Mostly Cloudy

52°F
Dew Pt 46°F
Wind from N

N 8 mph
Precip: 1%

Fri
2:00am

Mostly Cloudy

53°F
Dew Pt 46°F
Wind from N

N 8 mph
Precip: 2%

Fri
3:00am

Mostly Cloudy

52°F
Dew Pt 46°F
Wind from N

N 9 mph
Precip: 3%

Fri
4:00am

Mostly Cloudy

52°F
Dew Pt 46°F
Wind from N

N 10 mph
Precip: 4%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 232045
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
445 PM EDT Wed Sep 23 2026

.WHAT HAS CHANGED...
High Wind and Coastal Flood Watches in effect for the coastline  
Friday and Saturday.

&&

.KEY MESSAGES...

- Dry, cool, and breezy weather continues through Thursday.  

- An anomalous early season strong coastal storm will impact the
  region with strong winds and coastal flooding/erosion Friday
  and Saturday, especially eastern MA.

&&

.DISCUSSION...
KEY MESSAGE 1...Dry, cool, and breezy weather continues through 
Thursday. 

Not much change to our weather through Thursday. A sprawling
high pressure remains over western Canada. Expecting gusty east
to northeast winds to continue Thursday.

KEY MESSAGE 2...An anomalous early season strong coastal storm
will impact the region with strong winds and coastal 
flooding/erosion Friday and Saturday, especially eastern MA.

Unfortunately at 48-72 hours out, models still displaying large
a spread in track of ocean low along with its accompanying strong
wind fields. The EC/UKMET and EC-AIFS are on the western side of 
the envelope of solutions, with a surface low track westward
toward NJ coast. Meanwhile, the NAM, GFS and its AI member
(AIGFS) are farther east toward a Cape Cod track. Given the time 
range is still 48+ hours out, a blend/probabilistic approach is 
more sound than a deterministic path. With that said, here is 
our info regarding each hazard: 

Strong Winds...forecast based on following the 90 percentile of 
the NBM, with 45+ mph wind gusts begin to overspread coastal
areas of RI and eastern MA early Friday, then peaking late
Friday into Saturday. This appears to be the window of greatest 
wind impacts. Given it's only late September and trees are fully
leaved, the wind threshold to bring down large branches and
limbs is noticeably lower than winter. Past experience supports 
G40-45 mph is sufficient this time of year for wind impacts,
including disruptions of power. Therefore, we will hoist a high 
wind watch for the entire coastline of MA/RI, with the highest 
probs of impact, including power interruption is across the Cape
and Islands, including BID and Cape Ann. We realize winds may 
fall short of the watch/warning threshold of 58+ mph, but again,
the threshold is lower this time of year (40-45mph) given fully
leaved trees. Hence, basing this watch on impacts, not hard 
core wind thresholds. Timing, strongest winds somewhere in the 
Friday/Saturday time frame. Winds don't completely drop off 
Sunday/Monday, just not as strong as the low weakens. 

Ferry travelers to Boston, Nantucket, Marthas Vineyard and Block 
Islands, should check in advance with ferries as service
interruptions are likely, especially Friday and Saturday given
timing of peak winds. 

Coastal Flooding...

Long duration of 40-50 kt northeast flow (possibly gusts up 60 kt 
over coastal waters) directed towards the coastline Friday and 
Saturday, will pile up lots of water along the coastline and given 
the duration of the wind event, water will struggle to evacuate 
seaward, hence, adding to surge values, which may be somewhat 
underdone due to this affect. Our surge forecast was based on the 
ETSS and Steven's Institute, which offers 1.5-2.0 ft for high tides 
Fri and Sat. Verification could turn out to be up to 2.5 ft based on 
reasoning above. Given rising astro tides, (peaking early next week) 
combined with this surge, high likely for at least minor coastal 
flooding along the entire MA coastline from MVY/ACK/CC/Plymouth/BOS 
to NH border. If more westward solutions of UKMET/EC and its AI 
models, could be some inundation and erosion for RI coastline. Stay 
tuned. Greatest risk for moderate flooding is south of Boston to 
Cape Cod and Islands during the late Fri and Sat high tide cycles. 
However, given the duration of large waves pounding the coastline, 
seawalls and eroding sand dunes over multiple tide cycles, coastal 
erosion could tip the scales for impacts to be moderate or higher. 
Hence, we think this warrants a coastal flood watch. 

Rainfall...12z ensembles from EC/GFS and Canadian all have low
probs of 2-4" of rain across eastern MA. However, this is spread
out over 3 days. Thus, not expecting any flooding, other than
nuisance type roadway ponding. Given the blocky pattern, this
coastal/ocean storm will likely linger into Monday with wet
impacts. 

Temperatures...cool/moisture onshore flow Fri/Sat/Sun will limit 
daytime highs in the upper 50s to lower/mid 60s. Solid 10 degs 
cooler than normal.

&&

.AVIATION /20Z WEDNESDAY THROUGH MONDAY/...
Forecaster Confidence Levels...

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

Through Tonight...High confidence.

VFR. NE winds of 10 to 20 kt with gusts of 20 to 30 kt, 
strongest towards the southeast New England coast. Gusts around 
35 kt for Nantucket.

Thursday and Thursday Night...High confidence. 

VFR, outside of MVFR cigs over ACK and some of the outer Cape
late Thursday into the night. NE winds of 10 to 20 kt with 
gusts of 20 to 30 kt, strongest towards the southeast New 
England coast. Gusts near 35 kt for Nantucket.

KBOS Terminal...High confidence in TAF.

KBDL Terminal...High confidence in TAF.

Outlook /Friday through Monday/...

Friday: Mainly VFR, with local MVFR possible. Strong winds with
gusts up to 50 kt. Chance RA.

Friday Night: Mainly MVFR, with areas VFR possible. Strong
winds with gusts up to 50 kt. RA likely.

Saturday: Mainly MVFR, with areas VFR possible. Strong winds
with gusts up to 45 kt. RA likely.

Saturday Night: Mainly MVFR, with areas VFR possible. Strong
winds with areas of gusts up to 40 kt. SHRA, slight chance
TSRA.

Sunday: Mainly MVFR, with areas VFR possible. Strong winds with
local gusts up to 40 kt. SHRA likely.

Sunday Night: Mainly VFR, with local IFR possible. Windy with
gusts up to 35 kt. Chance SHRA.

Monday: Mainly VFR, with local IFR possible. Breezy. Chance
SHRA.

&&

.MARINE...
Forecaster Confidence Levels...

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

Through Thursday Night...High Confidence.

NE winds 20-30 kt with gusts up to 35 kt at times briefly
subside around sunset. Gusty winds resume Thursday and continue
through Thursday night. This northeast fetch will yield rough 
seas on the ocean waters, 6-12 ft. Dry weather and good 
visibility prevail. Rain could arrive from the SE as early as
Thursday afternoon for the waters south and east of Nantucket.
It is more likely this rain arrives Thursday night.

Outlook /Friday through Monday/...

*** Dangerous sea and wind conditions from an Ocean Storm 
Friday/Saturday and Sunday. Storm Force wind gusts (48+ kt) possible 
during this time. ***

Friday: gale force winds with gusts up to 45 kt. Rough seas up
to 25 ft. Rain. 

Friday Night: gale force winds with gusts up to 45 kt. Rough
seas up to 24 ft. Rain. Local visibility 1 to 3 nm.

Saturday: gale force winds with gusts up to 45 kt. Rough seas
up to 23 ft. Rain, slight chance of thunderstorms. 

Saturday Night: Strong winds with local gusts up to 45 kt.
Rough seas up to 19 ft. Rain showers, chance of thunderstorms. 

Sunday: Strong winds with gusts up to 40 kt. Rough seas up to
16 ft. Rain showers likely. 

Sunday Night: Moderate risk for Small Craft Advisory winds with
gusts up to 30 kt. Rough seas up to 12 ft. Chance of rain
showers. 

Monday: Low risk for Small Craft Advisory winds with gusts up
to 30 kt. Seas up to 5 ft. Chance of rain showers. 

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...High Wind Watch from Friday morning through Saturday evening 
     for MAZ007-015-016-019>024.
     Coastal Flood Watch from Friday afternoon through Saturday 
     afternoon for MAZ007-015-016-019-022>024.
RI...High Wind Watch from Friday morning through Saturday evening 
     for RIZ005>008.
MARINE...Small Craft Advisory until 8 AM EDT Friday for ANZ230-236.
     Gale Warning from 8 AM Friday to 8 PM EDT Saturday for ANZ230-
     236.
     Small Craft Advisory until 8 PM EDT this evening for ANZ231-
     254.
     Gale Warning from 8 PM this evening to 8 AM EDT Friday for 
     ANZ231-254.
     Storm Watch from Friday morning through Saturday evening for 
     ANZ231-254-281.
     Gale Warning until 2 AM EDT Friday for ANZ232>235-237-255-256-
     282-283.
     Storm Watch from late Thursday night through Saturday evening 
     for ANZ232>235-237-255-256-282-283.
     Small Craft Advisory until 2 AM EDT Friday for ANZ250-251-280.
     Gale Warning from 2 AM to 11 AM EDT Friday for ANZ250-251-280.
     Storm Watch from Friday morning through Saturday evening for 
     ANZ250-251-280.
     Gale Warning until 8 AM EDT Friday for ANZ281.

&&

$$

DISCUSSION...Belk/Nocera
AVIATION...Belk/Nocera
MARINE...Belk/Nocera

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