Lexington Weather

Current Conditions [‒] Current Conditions [+]

65.8°F Warmer than last hour.

18.8°C

Comfortable

Clear

This Afternoon: Hi 67 °F

Tonight: Lo 40 °F

Dew Point: 32.7°F Decreased 4.3°F since last hour.

Humidity: 29% Decreased 6.0% since last hour.

Air Quality Index: 31

Good

(Fine Particles)

Barometer: 29.92 in Falling 0.02 inHg/hr

1013 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.00 in

Rain Sunday: 0.00 in

Visibility: 10 miles

Wind:

Now: 2 mph

Avg: 1 mph

Gusts: 19 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 Mar 9, 2026 1:00pm EDT

This Afternoon:

Mostly Sunny

Hi 67 °F

Mostly sunny, with a high near 67. Southwest wind around 9 mph.

Tonight:

Mostly Clear

Lo 40 °F

Mostly clear, with a low around 40. Southwest wind around 8 mph.

Tuesday:

Sunny

Hi 73 °F

Sunny, with a high near 73. Southwest wind 3 to 7 mph.

Tuesday Night:

Mostly Clear

Lo 43 °F

Mostly clear, with a low around 43. Southwest wind around 6 mph.

Wednesday:

Chance Light Rain

Hi 59 °F

A chance of rain after 7am. Mostly cloudy, with a high near 59. East wind 5 to 8 mph. Chance of precipitation is 30%.

Wednesday Night:

Chance Light Rain

Lo 45 °F

A chance of rain. Mostly cloudy, with a low around 45. South wind around 10 mph. Chance of precipitation is 50%.

Thursday:

Chance Light Rain

Hi 60 °F

A chance of rain. Mostly cloudy, with a high near 60. West wind around 13 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

Thursday Night:

Slight Chance Light Snow then Mostly Cloudy

Lo 28 °F

A chance of rain before 10pm, then a slight chance of snow between 10pm and 11pm. Mostly cloudy, with a low around 28. Northwest wind 8 to 12 mph. Chance of precipitation is 40%.

Friday:

Mostly Sunny

Hi 44 °F

Mostly sunny, with a high near 44. Southwest wind 6 to 9 mph.

Friday Night:

Chance Rain And Snow then Rain And Snow Likely

Lo 33 °F

A chance of rain between 8pm and 10pm, then a chance of rain and snow between 10pm and 11pm, then rain and snow likely. Mostly cloudy, with a low around 33. Southwest wind around 10 mph. Chance of precipitation is 60%.

Saturday:

Chance Light Rain then Mostly Sunny

Hi 46 °F

A chance of rain before 8am. Mostly sunny, with a high near 46. West wind 9 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

Saturday Night:

Mostly Cloudy

Lo 29 °F

Mostly cloudy, with a low around 29. West wind 5 to 10 mph.

Sunday:

Chance Light Snow then Chance Light Rain

Hi 51 °F

A chance of snow before noon, then a chance of rain. Cloudy, with a high near 51. South wind 5 to 9 mph. Chance of precipitation is 40%.

Sunday Night:

Light Rain Likely

Lo 38 °F

Rain likely. Cloudy, with a low around 38. South wind 9 to 14 mph, with gusts as high as 25 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 2pm through Wed 1am

Issued by:
National Weather Service Boston / Norton, MA
Updated Mon Mar 9, 2026 1:00pm EDT

2:00pm

Mostly Sunny

63°F
Dew Pt 40°F
Wind from SW

SW 9 mph
Precip: 0%

3:00pm

Sunny

66°F
Dew Pt 41°F
Wind from SW

SW 9 mph
Precip: 0%

4:00pm

Mostly Sunny

66°F
Dew Pt 41°F
Wind from SW

SW 9 mph
Precip: 0%

5:00pm

Mostly Sunny

65°F
Dew Pt 42°F
Wind from S

S 8 mph
Precip: 0%

6:00pm

Mostly Clear

60°F
Dew Pt 41°F
Wind from S

S 8 mph
Precip: 0%

7:00pm

Mostly Clear

59°F
Dew Pt 41°F
Wind from S

S 7 mph
Precip: 0%

8:00pm

Partly Cloudy

56°F
Dew Pt 40°F
Wind from SW

SW 7 mph
Precip: 0%

9:00pm

Mostly Clear

53°F
Dew Pt 40°F
Wind from SW

SW 7 mph
Precip: 0%

10:00pm

Mostly Clear

52°F
Dew Pt 40°F
Wind from SW

SW 7 mph
Precip: 0%

11:00pm

Mostly Clear

49°F
Dew Pt 40°F
Wind Chill: 46°F
Wind from SW

SW 7 mph
Precip: 0%

Tue
12:00am

Mostly Clear

48°F
Dew Pt 40°F
Wind Chill: 45°F
Wind from SW

SW 7 mph
Precip: 0%

Tue
1:00am

Mostly Clear

47°F
Dew Pt 39°F
Wind Chill: 44°F
Wind from SW

SW 6 mph
Precip: 0%

Tue
2:00am

Mostly Clear

47°F
Dew Pt 40°F
Wind Chill: 43°F
Wind from SW

SW 6 mph
Precip: 1%

Tue
3:00am

Mostly Clear

45°F
Dew Pt 39°F
Wind Chill: 42°F
Wind from SW

SW 6 mph
Precip: 0%

Tue
4:00am

Mostly Clear

44°F
Dew Pt 39°F
Wind Chill: 41°F
Wind from SW

SW 6 mph
Precip: 1%

Tue
5:00am

Partly Cloudy

43°F
Dew Pt 39°F
Wind Chill: 40°F
Wind from SW

SW 6 mph
Precip: 1%

Tue
6:00am

Mostly Sunny

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

SW 5 mph
Precip: 1%

Tue
7:00am

Mostly Sunny

43°F
Dew Pt 38°F
Wind Chill: 39°F
Wind from SW

SW 5 mph
Precip: 1%

Tue
8:00am

Mostly Sunny

43°F
Dew Pt 39°F
Wind Chill: 38°F
Wind from SW

SW 5 mph
Precip: 1%

Tue
9:00am

Sunny

47°F
Dew Pt 40°F
Wind Chill: 42°F
Wind from SW

SW 3 mph
Precip: 1%

Tue
10:00am

Sunny

54°F
Dew Pt 42°F
Wind from SW

SW 3 mph
Precip: 1%

Tue
11:00am

Sunny

58°F
Dew Pt 44°F
Wind from SW

SW 3 mph
Precip: 1%

Tue
12:00pm

Sunny

63°F
Dew Pt 46°F
Wind from SW

SW 5 mph
Precip: 1%

Tue
1:00pm

Sunny

66°F
Dew Pt 47°F
Wind from SW

SW 6 mph
Precip: 1%

Tue
2:00pm

Sunny

70°F
Dew Pt 47°F
Wind from SW

SW 6 mph
Precip: 1%

Tue
3:00pm

Sunny

72°F
Dew Pt 48°F
Wind from SW

SW 6 mph
Precip: 1%

Tue
4:00pm

Sunny

73°F
Dew Pt 48°F
Wind from SW

SW 7 mph
Precip: 1%

Tue
5:00pm

Sunny

72°F
Dew Pt 48°F
Wind from SW

SW 6 mph
Precip: 2%

Tue
6:00pm

Mostly Clear

61°F
Dew Pt 48°F
Wind from SW

SW 6 mph
Precip: 2%

Tue
7:00pm

Mostly Clear

59°F
Dew Pt 47°F
Wind from SW

SW 6 mph
Precip: 2%

Tue
8:00pm

Mostly Clear

57°F
Dew Pt 47°F
Wind from SW

SW 6 mph
Precip: 2%

Tue
9:00pm

Mostly Clear

53°F
Dew Pt 46°F
Wind from SW

SW 6 mph
Precip: 2%

Tue
10:00pm

Mostly Clear

51°F
Dew Pt 45°F
Wind from SW

SW 5 mph
Precip: 2%

Tue
11:00pm

Mostly Clear

50°F
Dew Pt 45°F
Wind Chill: 49°F
Wind from SW

SW 5 mph
Precip: 2%

Wed
12:00am

Mostly Clear

49°F
Dew Pt 45°F
Wind Chill: 48°F
Wind from SW

SW 5 mph
Precip: 3%

Wed
1:00am

Mostly Clear

49°F
Dew Pt 45°F
Wind Chill: 47°F
Wind from SW

SW 3 mph
Precip: 5%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 091727
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
127 PM EDT Mon Mar 9 2026

.WHAT HAS CHANGED...
No significant changes to the forecast. High confidence in near 
record high temperatures Tuesday.

&&

.KEY MESSAGES...

- Area of fog quickly dissipate by mid-Tue morning. Otherwise... 
sunshine returns Tue with near record highs in the upper 60s to 
lower 70s away from the immediate coast.

- A more unsettled/active weather pattern Wed/Thu, with a round or 
two of precipitation. Back to cool temperatures later Thu into 
Friday.

- With dew points in the 30s and 40s, along with minor precip
  events, expecting a controlled/diurnal snowmelt over the
  coming week. Hence, only minor river flooding possible.

&&

KEY MESSAGE 1...Areas of fog quickly dissipate by mid-Tue morning. 
Otherwise...sunshine returns Tue with near record highs in the upper 
60s to lower 70s away from the immediate coast.

Areas of fog overnight into Tue morning, especially near the south 
coast. The fog will quickly burn off after sunrise given a lot of 
dry air just above the boundary layer.

Lots of sunshine again tomorrow/Tue and even warmer temps aloft, 
from +12C/+13C today to +14/+15C Tue will yield another spring-like 
day, with highs in the upper 60s to lower 70s. Given this, we 
followed the warmer NBM 95 percentile for MaxT tomorrow. These temps 
will come close to record highs for the day (see climate section for 
specifics). Of course it will be noticeably cooler on the immediate 
south coast, Cape and Islands given S-SW winds streaming across the 
cool near shore waters.  

KEY MESSAGE 2...Trending more unsettled Wed/Thu with a round or two 
of precipitation. Back to cool temperatures late Thu into Friday.

Backdoor front slips into northeast MA late Tue night/early Wed and 
then slowly lifts north as a warm front later Wed. This will yield 
lots of clouds Wed along with a chance of showers, but by no means a 
washout. Not as warm Wed given cloud cover and onshore flow, but 
still mild with highs in the 50s, 60-65 inland. Deepening parent low 
tracks thru the St Lawrence River Valley Wed night, with its 
attending cold front entering SNE Thu. Strong jet dynamics coupled 
with good moisture advection will yield widespread showers Wed night 
into Thu. Models showing lots of spread regarding potential 
anafrontal precip, with some of the guidance supporting rain 
changing to snow and/or sleet before ending across the high terrain.
  
Friday the post frontal airmass overhead means cooler temperatures, 
highs 40-45, which is on target for this time of year. Another 
northern stream low passes to our north late Fri/Fri night, which 
may bring some scattered rain/high elevation snow showers. Dry 
weather is likely Sat behind this system and possibly lingering into 
much of Sunday, before the next system impacts SNE Sun night into 
Monday. 

KEY MESSAGE 3...Expecting controlled/diurnal snowmelt over the 
coming week. Thus, only minor river flooding possible.

Given dew pts are only expected to rise into the 30s and 40s, along 
with minor precip events, we are expected a controlled/diurnal 
snowmelt. This will contribute back to the watershed leading to 
rises, but for the reasons mentioned above, only expecting minor 
flood stages to be observed as a worse case scenario. Guidance 
continues to indicate the most likely spots to see flooding are 
along the Connecticut River by next weekend with addition of S. RI 
rivers by early next week.

&&

.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: High confidence.

IFR/LIFR in fog should return quickly to Cape Cod and the
Islands by this evening and persist overnight. Elsewhere we 
expect another night of patchy valley fog with more brief IFR 
conditions. VFR Tue with S/SW flow. Conditions should improve
quickly Tue morning near Cape Cod and Islands.

Other concern is for a period of LLWS in central/eastern MA and
RI early tonight as SW winds at 2000 ft increase to 35-40kt.

KBOS Terminal...High confidence in TAF.

KBDL Terminal...High confidence in TAF.

Outlook /Tuesday Night through Saturday/...

Wednesday: Mainly VFR, with local MVFR possible. Breezy. Chance
RA.

Wednesday Night: Mainly VFR, with local IFR possible. Breezy.
Chance RA.

Thursday: Mainly VFR, with local MVFR possible. Windy with
local gusts up to 30 kt. Chance RA.

Thursday Night through Friday: VFR. Breezy. 

Friday Night: Mainly VFR, with local MVFR possible. Breezy.
Chance RA, chance SN.

Saturday: Breezy. 

&&

.MARINE...
Forecaster Confidence Levels...

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

Today through Tuesday night...High confidence.

A weak pressure gradient will keep winds and seas below small craft 
advisory thresholds through Tue night. Areas of fog...some of which 
will be dense at times will impact our southern waters during the 
overnight and early morning hours. This will result in poor vsbys 
for mariners at times, but improving by mid to late morning. 

Outlook /Wednesday through Saturday/...

Wednesday: Winds less than 25 kt. Seas locally approaching
5 ft. Slight chance of rain. 

Wednesday Night: Strong winds with areas of gusts up to 30 kt.
Areas of rough seas. Chance of rain. 

Thursday: Moderate risk for Small Craft Advisory winds with
gusts up to 30 kt. Rough seas up to 10 ft. Chance of rain. 

Thursday Night: Moderate risk for Small Craft Advisory winds
with gusts up to 25 kt. Areas of rough seas. Chance of rain,
slight chance of snow. 

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

Friday Night: Strong winds with gusts up to 30 kt. Seas up to
5 ft. Chance of rain. 

Saturday: Moderate risk for Small Craft Advisory winds with
gusts up to 30 kt. Areas of rough seas. 

&&

.CLIMATE...

Record highs for Tuesday, March 10th...

BOS...71...1878
PVD...72...2016
BDL...72...2016
ORH...67...2020

Average high for 3/10 is 40-45. 

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...None.

&&

$$

DISCUSSION...Nocera
AVIATION...JWD
MARINE...Nocera
CLIMATE...JWD

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