Lexington Weather

Current Conditions [‒] Current Conditions [+]

55.8°F Warmer than last hour.

13.2°C

Cool

Light rain, Mist, Overcast

This Afternoon: Hi 60 °F

Tonight: Lo 53 °F

Dew Point: 55.2°F Increased 0.2°F since last hour .

Humidity: 98%

Air Quality Index: 8

Good

(Fine Particles)

Barometer: 29.80 in S

1009 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.32 in

Rain Sunday: 0.82 in

Visibility: 1½ miles

Wind:

Now: Calm

Avg: Calm

Gusts: 0 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

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

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

Overview:

- Slowly improving weather overnight and Tuesday as the nor'easter weakens and moves away

- Warm and Dry conditions arrive Wednesday through Friday followed by a chance for rainy and unsettled conditions this weekend

This Afternoon:

Rain Showers

Hi 60 °F

Rain showers and patchy fog. Cloudy, with a high near 60. Northeast wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.

Tonight:

Rain Showers

Lo 53 °F

Rain showers and patchy fog before 1am, then patchy fog and a slight chance of rain showers. Cloudy, with a low around 53. North wind 6 to 9 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.

Tuesday:

Patchy Fog then Mostly Cloudy

Hi 69 °F

Patchy fog before 11am. Mostly cloudy, with a high near 69. North wind 3 to 7 mph.

Tuesday Night:

Mostly Cloudy

Lo 55 °F

Mostly cloudy, with a low around 55. Northwest wind around 2 mph.

Wednesday:

Partly Sunny

Hi 72 °F

Partly sunny, with a high near 72. West wind around 2 mph.

Wednesday Night:

Mostly Cloudy

Lo 57 °F

Mostly cloudy, with a low around 57. South wind around 3 mph.

Thursday:

Mostly Sunny

Hi 79 °F

Mostly sunny, with a high near 79. Southwest wind 3 to 9 mph.

Thursday Night:

Partly Cloudy

Lo 66 °F

Partly cloudy, with a low around 66. Southwest wind around 7 mph.

Friday:

Mostly Sunny

Hi 79 °F

Mostly sunny, with a high near 79. West wind around 7 mph.

Friday Night:

Chance Rain Showers

Lo 57 °F

A chance of rain showers before 4am. Mostly cloudy, with a low around 57. Northwest wind around 5 mph. Chance of precipitation is 30%.

Saturday:

Mostly Sunny

Hi 68 °F

Mostly sunny, with a high near 68. North wind around 7 mph.

Saturday Night:

Mostly Cloudy then Slight Chance Rain Showers

Lo 51 °F

A slight chance of rain showers after 2am. Mostly cloudy, with a low around 51. Northeast wind around 5 mph.

Sunday:

Chance Rain Showers

Hi 66 °F

A chance of rain showers. Mostly cloudy, with a high near 66. East wind 3 to 7 mph. Chance of precipitation is 40%.

Sunday Night:

Chance Rain Showers

Lo 53 °F

A chance of rain showers. Mostly cloudy, with a low around 53. Southwest wind around 7 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 5pm through Wed 4am

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

5:00pm

Rain Showers

58°F
Dew Pt 58°F
Wind from NE

NE 9 mph
Precip: 94%
Rain: 0.04 in

6:00pm

Rain Showers

58°F
Dew Pt 58°F
Wind from N

N 9 mph
Precip: 97%
Rain: 0.04 in

7:00pm

Rain Showers

57°F
Dew Pt 57°F
Wind from N

N 9 mph
Precip: 86%
Rain: 0.03 in

8:00pm

Rain Showers Likely

58°F
Dew Pt 58°F
Wind from N

N 8 mph
Precip: 73%
Rain: 0.04 in

9:00pm

Rain Showers Likely

57°F
Dew Pt 57°F
Wind from N

N 8 mph
Precip: 61%
Rain: 0.03 in

10:00pm

Chance Rain Showers

56°F
Dew Pt 56°F
Wind from N

N 7 mph
Precip: 48%
Rain: 0.02 in

11:00pm

Chance Rain Showers

56°F
Dew Pt 56°F
Wind from N

N 7 mph
Precip: 43%
Rain: 0.02 in

Tue
12:00am

Chance Rain Showers

56°F
Dew Pt 56°F
Wind from N

N 7 mph
Precip: 34%
Rain: 0.01 in

Tue
1:00am

Patchy Fog

55°F
Dew Pt 55°F
Wind from N

N 7 mph
Precip: 24%

Tue
2:00am

Patchy Fog

55°F
Dew Pt 55°F
Wind from N

N 6 mph
Precip: 15%

Tue
3:00am

Patchy Fog

55°F
Dew Pt 55°F
Wind from N

N 6 mph
Precip: 12%

Tue
4:00am

Patchy Fog

55°F
Dew Pt 55°F
Wind from N

N 6 mph
Precip: 9%

Tue
5:00am

Patchy Fog

54°F
Dew Pt 54°F
Wind from NW

NW 6 mph
Precip: 8%

Tue
6:00am

Patchy Fog

54°F
Dew Pt 54°F
Wind from NW

NW 6 mph
Precip: 6%

Tue
7:00am

Patchy Fog

53°F
Dew Pt 53°F
Wind from NW

NW 5 mph
Precip: 4%

Tue
8:00am

Patchy Fog

55°F
Dew Pt 55°F
Wind from NW

NW 6 mph
Precip: 4%

Tue
9:00am

Patchy Fog

57°F
Dew Pt 57°F
Wind from NW

NW 6 mph
Precip: 3%

Tue
10:00am

Patchy Fog

60°F
Dew Pt 59°F
Wind from NW

NW 6 mph
Precip: 3%

Tue
11:00am

Partly Sunny

63°F
Dew Pt 59°F
Wind from NW

NW 7 mph
Precip: 3%

Tue
12:00pm

Mostly Cloudy

64°F
Dew Pt 60°F
Wind from NW

NW 7 mph
Precip: 3%

Tue
1:00pm

Mostly Cloudy

65°F
Dew Pt 60°F
Wind from NW

NW 6 mph
Precip: 3%

Tue
2:00pm

Mostly Cloudy

67°F
Dew Pt 60°F
Wind from N

N 6 mph
Precip: 3%

Tue
3:00pm

Mostly Cloudy

67°F
Dew Pt 60°F
Wind from N

N 5 mph
Precip: 3%

Tue
4:00pm

Partly Sunny

67°F
Dew Pt 60°F
Wind from N

N 3 mph
Precip: 4%

Tue
5:00pm

Mostly Cloudy

68°F
Dew Pt 60°F
Wind from N

N 3 mph
Precip: 4%

Tue
6:00pm

Mostly Cloudy

66°F
Dew Pt 60°F
Wind from N

N 2 mph
Precip: 4%

Tue
7:00pm

Mostly Cloudy

65°F
Dew Pt 60°F
Wind from N

N 2 mph
Precip: 3%

Tue
8:00pm

Mostly Cloudy

64°F
Dew Pt 60°F
Wind from N

N 2 mph
Precip: 3%

Tue
9:00pm

Mostly Cloudy

61°F
Dew Pt 59°F
Wind from SW

SW 2 mph
Precip: 3%

Tue
10:00pm

Mostly Cloudy

60°F
Dew Pt 58°F
Wind from NW

NW 2 mph
Precip: 2%

Tue
11:00pm

Mostly Cloudy

59°F
Dew Pt 58°F
Wind from NW

NW 2 mph
Precip: 1%

Wed
12:00am

Mostly Cloudy

59°F
Dew Pt 57°F
Wind from NW

NW 2 mph
Precip: 0%

Wed
1:00am

Mostly Cloudy

58°F
Dew Pt 57°F
Wind from NW

NW 2 mph
Precip: 0%

Wed
2:00am

Mostly Cloudy

57°F
Dew Pt 57°F
Wind from NW

NW 2 mph
Precip: 0%

Wed
3:00am

Mostly Cloudy

57°F
Dew Pt 56°F
Wind from NW

NW 2 mph
Precip: 0%

Wed
4:00am

Mostly Cloudy

56°F
Dew Pt 56°F
Wind from NW

NW 2 mph
Precip: 0%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 281757
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
157 PM EDT Mon Sep 28 2026

.WHAT HAS CHANGED...
Flood watch has been cancelled. Small craft advisories for
Boston Harbor and Narragansett Bay have also been taken down as
conditions begin to improve.

&&

.KEY MESSAGES...

- Slowly improving weather overnight and Tuesday as the
  nor'easter weakens and moves away 

- Warm and Dry conditions arrive Wednesday through Friday
  followed by a chance for rainy and unsettled conditions this
  weekend

&&

.DISCUSSION...
KEY MESSAGE 1...Slowly improving weather overnight and Tuesday as 
the nor'easter weakens and moves away.

Although the low level swirl around the center of the nor'easter 
south of Long Island looks impressive on satellite imagery, the 
storm is quickly weakening as it's starting to move more quickly to 
the northeast. Still a good amount of moisture, wrapped around the 
circulation, producing a fairly large area of light rainfall. 
However as the dynamics weaken, the rainfall intensity is also on a 
downward trend. Expect most areas will see less than 1/2" of 
additional rainfall from this point forward. Models are all in good 
agreement in taking the low across the Cape overnight and then into 
the Gulf of Maine on Tuesday. Surface winds will slowly transition 
from NNE to NNW and then NW by Tuesday morning - except across our 
southern coastal waters and Nantucket, which will see winds go from 
the SE to SW and eventually W since the low center will pass north 
of those areas. Model forecast cross-sections indicate low level 
moisture will be slow to leave tomorrow, so expect a generally 
mostly cloudy day. Better chances for some afternoon sunshine will 
be across western areas. There is no blob of cold air that will come 
in behind the nor'easter, and in fact 925mb temperatures will be a 
little warmer than they were today. So given that and some breaks of 
sunshine, temperatures will be in the mid to upper 60s for most, and 
a few locations - especially in the CT River Valley - could hit
70F.

Also, given the downward trends in rainfall, have gone ahead and
cancelled the Flood Watch. Although some minor flooding is still
expected along portions of the Taunton River, we don't
anticipate any increase in risk for flooding across the area.  


KEY MESSAGE 2...Warm and Dry conditions arrive Wednesday through 
Friday followed by a chance for rainy and unsettled conditions this 
weekend. 

A mid-level ridge builds across the southeastern CONUS this week, 
while surface high pressure settles south of the region Wednesday 
through Friday, leading to a stretch of quieter and warmer weather. 
Guidance hints at a weak northern-stream shortwave Wednesday night 
into early Thursday, followed by a secondary shortwave Thursday 
night into Friday. PWATs Wednesday night into Thursday remain below 
1.2 inches and do not align particularly well with the best forcing. 
Outside of a brief light shower, would anticipate more clouds than 
anything. PWATs increase to around 1.5 inches Thursday night with 
the passage of the secondary weak shortwave, when a few light 
showers could brush the region. No significant impacts are 
anticipated with either disturbance. Temperatures trend warmer 
through the middle and latter half of the week, though the latest 
guidance has trended somewhat cooler compared to previous runs. 
Highs generally return to the lower and middle 70s, with Thursday 
potentially the warmest day as temperatures reach the middle to 
upper 70s. No notable cold is expected overnight, with lows 
generally falling into the 50s.

Forecast becomes a bit more interesting by late next week as a 
strong continential high pressure system arrives from SE Canada. 
Guidance shows a rather sharp drop in temperatures with 850 temps 
falling from +15-17C Friday to +4-6C on Saturday. Beyond this front, 
guidance is beginning to come into better agreement with depicting a 
strong area of low pressure across SE Canada on Sunday. There 
remains a variety of solutions with the GFS/ICON depicting secondary 
cyclogenesis along a frontal boundary near the Carolinas and the 
ECMWF/CMC leaning more towards a strong frontal boundary. In any 
case, the second half of the weekend looks wet and unsettled. Behind 
this feature, guidance depicts a much colder airmass moving in from 
Canada with 850mb temps falling below zero later Monday through 
Wednesday. These mid-level temps would support highs in the 40s and 
50s with nighttime lows possibly falling into the 30s depending on 
radiational cooling. 

&&

.AVIATION /18Z MONDAY THROUGH SATURDAY/...
Forecaster Confidence Levels...

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

18z TAF Update...

Overall moderate confidence. 

IFR to occasionally LIFR conditions will continue through the 
evening and much of the overnight. Although areas of -RA and -SHRA 
will slowly wind down later this evening, low ceilings and BR will 
persist in most areas. Probably some -DZ mixed in as well. The 
timing of the -SHRA and lower visibility/ceiling conditions are just 
estimates. 

As we get into Tuesday morning, we should see improving conditions 
to at least MVFR in most areas, and perhaps VFR conditions 
developing by early afternoon across western areas. Guidance 
suggests low level moisture will remain in place, resulting in 
widespread ceilings of 2000-2500ft for most areas much of the day. 
Basically what you see this afternoon across western NY and PA will 
be what is over our area tomorrow.  

VFR conditions should build in Tuesday night. 

KBOS Terminal...Moderate confidence in TAF. Should continue to see 
NNE winds occasional gust 20-25kt through 00z before wind diminish a 
bit and start to transition to NW. 

KBDL Terminal...Moderate confidence in TAF.

Outlook /Wednesday through Saturday/...

Wednesday through Wednesday Night: VFR. 

Thursday through Thursday Night: VFR. Breezy. 

Friday: VFR. Slight chance SHRA.

Friday Night: VFR. Chance SHRA.

Saturday: VFR. 

&&

.MARINE...
Forecaster Confidence Levels...

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

Overall high confidence.

The nor'easter is weakening and beginning to move more quickly
to the northeast. The center will pass over Cape Code overnight
and then move into the Gulf of Maine for tomorrow. As that
happens, winds will continue to diminish. Seas will also
continue to subside, but that process will take a bit longer
than the winds, especially for the outer waters off the eastern
MA coasts. High pressure does move across the region later
tomorrow, and then will set up off the US east coast and provide
an extended period of SW winds for the middle through end of the
week. 

Outlook /Tuesday Night through Saturday/...

Wednesday: Winds less than 25 kt. Areas of seas approaching
5 ft. 

Wednesday Night through Thursday: Winds less than 25 kt. Seas
locally approaching 5 ft. 

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

Friday Night: Winds less than 25 kt. Areas of seas approaching
5 ft. Chance of rain showers. 

Saturday: Winds less than 25 kt. Areas of seas approaching
5 ft. 

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...Coastal Flood Advisory until midnight EDT tonight for MAZ007-
     015-016-019-022>024.
RI...None. 
MARINE...Small Craft Advisory until 2 PM EDT this afternoon for ANZ230-
     236.
     Small Craft Advisory until 8 PM EDT this evening for 
     ANZ231>235-237.
     Small Craft Advisory until 2 PM EDT Tuesday for ANZ250-251.
     Small Craft Advisory until 8 AM EDT Tuesday for ANZ254.
     Small Craft Advisory until 2 AM EDT Tuesday for ANZ255-256.

&&

$$

DISCUSSION...FT/Nash
AVIATION...FT/Nash
MARINE...FT/Nash

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