Lexington Weather

Current Conditions [‒] Current Conditions [+]

67.5°F Colder than last hour.

19.7°C

Comfortable

Clear

Tonight: Lo 61 °F

Saturday: Hi 72 °F

Dew Point: 60.8°F Decreased 0.4°F since last hour.

Humidity: 79% Increased 2.0% since last hour.

Barometer: 29.74 in S

1007 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.00 in

Rain Friday: 0.00 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: Calm

Gusts: 0 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

NWS Weather Forecast -
Tonight, Saturday, & Saturday Night through Friday

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Fri Sep 4, 2026 2:28pm EDT

Overview:

- Mostly dry and pleasant for the weekend outside of a chance for some isolated showers Saturday afternoon.

- Fall-like feel for Sunday, then more seasonable for Labor Day. A gradual warm-up throughout the week with continued dry weather through at least Wednesday or Thursday.

- Elevated risk for dangerous rip currents through the Holiday Weekend, especially Sunday into Labor Day.

Tonight:

Mostly Clear

Lo 61 °F

Mostly clear, with a low around 61. Northwest wind around 6 mph.

Saturday:

Partly Sunny then Chance Rain Showers

Hi 72 °F

A chance of rain showers after 2pm. Partly sunny, with a high near 72. North wind around 8 mph. Chance of precipitation is 30%.

Saturday Night:

Chance Rain Showers then Partly Cloudy

Lo 56 °F

A chance of rain showers before 8pm. Partly cloudy, with a low around 56. Northeast wind 3 to 8 mph. Chance of precipitation is 30%.

Sunday:

Sunny

Hi 70 °F

Sunny, with a high near 70. North wind around 7 mph.

Sunday Night:

Mostly Clear

Lo 51 °F

Mostly clear, with a low around 51. Northwest wind around 5 mph.

Labor Day:

Sunny

Hi 76 °F

Sunny, with a high near 76. Northwest wind around 7 mph.

Monday Night:

Mostly Clear

Lo 58 °F

Mostly clear, with a low around 58. West wind around 5 mph.

Tuesday:

Mostly Sunny

Hi 77 °F

Mostly sunny, with a high near 77. Northwest wind around 7 mph.

Tuesday Night:

Mostly Cloudy

Lo 57 °F

Mostly cloudy, with a low around 57. Northwest wind around 5 mph.

Wednesday:

Mostly Cloudy

Hi 75 °F

Mostly cloudy, with a high near 75. Southwest wind 2 to 9 mph.

Wednesday Night:

Chance Rain Showers

Lo 65 °F

A chance of rain showers. Mostly cloudy, with a low around 65. Southwest wind around 12 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

Thursday:

Slight Chance Rain Showers

Hi 80 °F

A slight chance of rain showers. Partly sunny, with a high near 80. West wind around 13 mph, with gusts as high as 28 mph.

Thursday Night:

Slight Chance Rain Showers then Partly Cloudy

Lo 59 °F

A slight chance of rain showers before 10pm. Partly cloudy, with a low around 59. Northwest wind 8 to 12 mph, with gusts as high as 25 mph.

Friday:

Mostly Sunny

Hi 70 °F

Mostly sunny, with a high near 70. Northwest wind around 10 mph, with gusts as high as 21 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 12am through Sun 11am

Issued by:
National Weather Service Boston / Norton, MA
Updated Fri Sep 4, 2026 2:28pm EDT

12:00am

Mostly Clear

66°F
Dew Pt 59°F
Wind from NW

NW 6 mph
Precip: 0%

1:00am

Mostly Clear

65°F
Dew Pt 59°F
Wind from NW

NW 6 mph
Precip: 0%

2:00am

Mostly Clear

64°F
Dew Pt 59°F
Wind from NW

NW 6 mph
Precip: 0%

3:00am

Mostly Clear

64°F
Dew Pt 59°F
Wind from NW

NW 6 mph
Precip: 0%

4:00am

Mostly Clear

63°F
Dew Pt 58°F
Wind from NW

NW 6 mph
Precip: 0%

5:00am

Mostly Clear

62°F
Dew Pt 58°F
Wind from NW

NW 6 mph
Precip: 0%

6:00am

Sunny

61°F
Dew Pt 58°F
Wind from NW

NW 6 mph
Precip: 0%

7:00am

Mostly Sunny

62°F
Dew Pt 59°F
Wind from N

N 6 mph
Precip: 0%

8:00am

Mostly Sunny

64°F
Dew Pt 60°F
Wind from N

N 7 mph
Precip: 2%

9:00am

Mostly Sunny

66°F
Dew Pt 61°F
Wind from N

N 8 mph
Precip: 1%

10:00am

Partly Sunny

68°F
Dew Pt 61°F
Wind from N

N 7 mph
Precip: 2%

11:00am

Mostly Sunny

70°F
Dew Pt 61°F
Wind from N

N 7 mph
Precip: 4%

12:00pm

Partly Sunny

70°F
Dew Pt 61°F
Wind from N

N 7 mph
Precip: 8%

1:00pm

Mostly Cloudy

70°F
Dew Pt 61°F
Wind from NE

NE 7 mph
Precip: 12%

2:00pm

Slight Chance Rain Showers

70°F
Dew Pt 61°F
Wind from NE

NE 7 mph
Precip: 16%

3:00pm

Slight Chance Rain Showers

70°F
Dew Pt 61°F
Wind from NE

NE 6 mph
Precip: 22%

4:00pm

Chance Rain Showers

68°F
Dew Pt 61°F
Wind from E

E 6 mph
Precip: 29%

5:00pm

Chance Rain Showers

67°F
Dew Pt 60°F
Wind from E

E 7 mph
Precip: 28%

6:00pm

Chance Rain Showers

66°F
Dew Pt 60°F
Wind from E

E 7 mph
Precip: 26%

7:00pm

Slight Chance Rain Showers

64°F
Dew Pt 59°F
Wind from NE

NE 8 mph
Precip: 19%

8:00pm

Mostly Cloudy

64°F
Dew Pt 58°F
Wind from NE

NE 3 mph
Precip: 12%

9:00pm

Partly Cloudy

63°F
Dew Pt 58°F
Wind from NE

NE 3 mph
Precip: 8%

10:00pm

Partly Cloudy

62°F
Dew Pt 57°F
Wind from NE

NE 3 mph
Precip: 4%

11:00pm

Partly Cloudy

62°F
Dew Pt 57°F
Wind from N

N 3 mph
Precip: 3%

Sun
12:00am

Partly Cloudy

61°F
Dew Pt 56°F
Wind from N

N 3 mph
Precip: 2%

Sun
1:00am

Partly Cloudy

60°F
Dew Pt 56°F
Wind from N

N 3 mph
Precip: 3%

Sun
2:00am

Mostly Clear

60°F
Dew Pt 55°F
Wind from N

N 3 mph
Precip: 2%

Sun
3:00am

Partly Cloudy

59°F
Dew Pt 54°F
Wind from N

N 5 mph
Precip: 3%

Sun
4:00am

Partly Cloudy

58°F
Dew Pt 54°F
Wind from N

N 5 mph
Precip: 2%

Sun
5:00am

Partly Cloudy

58°F
Dew Pt 53°F
Wind from N

N 6 mph
Precip: 2%

Sun
6:00am

Mostly Sunny

57°F
Dew Pt 53°F
Wind from N

N 6 mph
Precip: 2%

Sun
7:00am

Mostly Sunny

56°F
Dew Pt 53°F
Wind from N

N 6 mph
Precip: 2%

Sun
8:00am

Sunny

59°F
Dew Pt 54°F
Wind from N

N 6 mph
Precip: 3%

Sun
9:00am

Sunny

61°F
Dew Pt 56°F
Wind from N

N 6 mph
Precip: 4%

Sun
10:00am

Sunny

63°F
Dew Pt 56°F
Wind from N

N 6 mph
Precip: 6%

Sun
11:00am

Sunny

65°F
Dew Pt 55°F
Wind from N

N 7 mph
Precip: 7%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 042345
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
745 PM EDT Fri Sep 4 2026

.WHAT HAS CHANGED...
No significant changes to the forecast.

&&

.KEY MESSAGES...

- Mostly dry and pleasant for the weekend outside of a chance
  for some isolated showers Saturday afternoon.

- Fall-like feel for Sunday, then more seasonable for Labor 
  Day. A gradual warm-up throughout the week with continued dry 
  weather through at least Wednesday or Thursday.

- Elevated risk for dangerous rip currents through the Holiday 
  Weekend, especially Sunday into Labor Day.

&&

.DISCUSSION...
KEY MESSAGE 1...Mostly dry and pleasant for the weekend outside
of a chance for some isolated showers Saturday afternoon.

A broad cutoff low tracking into the Maritimes today and tomorrow 
will continue to be the main story for the near-term. NW flow 
continues into tonight before shifting more N to NE Saturday 
afternoon as the low in the Canadian Maritimes continues to 
circulate. High low-level lapse rates in the afternoon hours will 
aid in more conducive conditions for diurnal cumulus to develop, and 
isolated showers remain a possibility for Saturday afternoon even 
with PWATs falling below 1". Highs Saturday will be a bit cooler due 
to this more northerly/northeasterly flow and temperatures aloft 
cooling a bit, especially over eastern MA; 925 mb temperatures fall 
to around 12-14C over eastern MA with the interior closer to 16-18C. 
850 mb temperatures may fall below 10C Saturday, though this is more 
likely for Sunday. Lows for Saturday night will likely fall to the 
low to mid 50s for most places in southern New England as the cooler 
air aloft descends into the region. 

KEY MESSAGE 2...Fall-like feel for Sunday, then more seasonable for 
Labor Day. A gradual warm-up throughout the week with continued dry 
weather through at least Wednesday or Thursday.

Saturday night through the middle of the upcoming week features 
fairly benign conditions, with little in the way of rainfall 
chances. The 500mb forecast map shows somewhat of an omega ridge 
centered across the middle of the country, with a closed mid-level 
low centered over Nova Scotia Sunday afternoon. The omega ridge 
flattens out, with semi-zonal flow developing across the coast by 
Tuesday and then shortwave troughing for late week across the 
northeastern states, likely leading to the next chance for active 
weather for southern New England. At the surface, high pressure 
builds in from the northwest Sunday, with its origins in northern 
Canada. Surface high pressure remains the dominant weather feature 
throughout the majority of the forecast period, leading to a stretch 
of dry weather.

Temperatures aloft are cooler Sunday, associated with that mid-level 
low east of New England. 925mb temperatures are only around +8C to 
+10C, which with boundary layer mixing supports highs in the upper 
60s to low 70s. Thus, Sunday will feel very much like autumn, with a 
blend of sun and clouds, northerly winds and dew points in the low 
50s. While winds won't be overly strong, the combination of cooler 
temperatures and lower dew points will make for a rather crisp day. 
Sunday night should feature decent radiational cooling with high 
pressure settling across the region, though this will depend on how 
quickly winds diminish. Did opt for a blend of colder guidance on 
Sunday night, which brought temperatures down into the upper 40s to 
low 50s for most of southern New England, with urban centers like 
Boston remaining in the middle 50s. 

Good news if you aren't ready for pumpkin spice weather, as 
temperatures will trend warmer throughout the week from WAA aloft. 
925mb temperatures climb +14C to +18C, supporting near-seasonable 
highs in the upper 70s for Labor Day, then upper 70s to lower 80s 
Tuesday into the middle part of next week. Humidity remains 
tolerable as well, with dew points generally in the upper 50s to 
around 60F. Labor Day itself looks quiet and dry, though there will 
be a high risk for rip currents along the ocean beaches.

KEY MESSAGE 3...Elevated risk for dangerous rip currents through the 
Holiday Weekend, especially Sunday into Labor Day.

Persistent northeast flow, long-period swell, and offshore seas of 4-
7 feet will continue to support an elevated risk for dangerous rip 
currents through the Holiday Weekend, especially Sunday into Labor 
Day for east-facing ocean beaches. With otherwise quiet weather 
expected, those heading to the beach should be mindful that ocean 
conditions may still be hazardous. Be sure to check with local beach 
staff or lifeguards regarding ocean conditions before entering the 
water.

&&

.AVIATION /00Z SATURDAY THROUGH WEDNESDAY/...
Forecaster Confidence Levels...

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

UPDATE: 00Z TAF

Tonight...Moderate confidence.

VFR. However, MVFR ceilings may approach eastern MA before
daybreak, including Cape Cod and Islands. Light northwest 
winds, with light north-northeast wind for eastern MA.

Saturday...Moderate confidence. 

Forecast guidance suggest there may be two cloud bases tomorrow,
one being MVFR to low-end VFR (020-040)VFR, then a secondary
base between 050-080. Isolated SHRA/TSRA threat 19z-23z. North-
northeast winds 10-15 kts. 

Saturday night...High confidence. 

Lower-end VFR to MVFR ceilings. Winds light and variable. 

KBOS Terminal...Moderate confidence in TAF.

Where confidence is moderate is with the development of MVFR
ceilings, whether the deck of clouds are SCT or BKN/OVC.

KBDL Terminal...High confidence in TAF.

Outlook /Sunday through Wednesday/...

Sunday: VFR. Breezy. 

Sunday Night through Tuesday Night: VFR. 

Wednesday: Mainly VFR, with local MVFR possible. Breezy. Slight
chance SHRA.

&&

.MARINE...
Forecaster Confidence Levels...

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

Through Saturday Night...

Seabreezes kick out closer to sunset this evening and winds
return to more NW tonight and eventually more N and NE into 
Saturday, sustained to 10-15 kt. Seas 2-3 ft, increasing 
slightly heading into Sunday. Small Craft Advisories may be 
needed heading into Sunday. Rip current risk starts to increase 
Saturday, especially increasing Sunday.

Outlook /Sunday through Wednesday/...

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

Sunday Night: Winds less than 25 kt. Local rough seas. 

Labor Day through Monday Night: Winds less than 25 kt. Areas of
seas approaching 5 ft. 

Tuesday: Winds less than 25 kt. Seas locally approaching 5 ft. 

Tuesday Night through Wednesday: Winds less than 25 kt.

&&

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

&&

$$

DISCUSSION...Dooley/Hrencecin
AVIATION...BW/Dooley
MARINE...Dooley/Hrencecin

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