Lexington Weather

Current Conditions [‒] Current Conditions [+]

63.0°F Colder than last hour.

17.2°C

Comfortable

Clear

Overnight: Lo 62 °F

Saturday: Hi 72 °F

Dew Point: 58.6°F Decreased 0.4°F since last hour.

Humidity: 86% Increased 1.0% since last hour.

Air Quality Index: 27

Good

(Fine Particles)

Barometer: 29.72 in S

1006 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

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

Southeast Middlesex County, MA - Rip Current Statement
- SEE ALL NEARBY ALERTS -

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

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Sat Sep 5, 2026 2:13am EDT

Overview:

- A mainly dry day on tap except along and east of the I- 495 corridor where there is a chance for afternoon showers and perhaps a thunderstorm or two.

- 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.

Rip Current Statement

Overnight:

Mostly Clear

Lo 62 °F

Mostly clear, with a low around 62. Northwest wind around 6 mph.

Saturday:

Mostly Sunny then Chance Rain Showers

Hi 72 °F

A chance of rain showers after 2pm. Mostly sunny, with a high near 72. North wind around 8 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

Saturday Night:

Chance Rain Showers then Partly Cloudy

Lo 56 °F

A chance of rain showers before 9pm. Partly cloudy, with a low around 56. Northeast wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

Sunday:

Sunny

Hi 71 °F

Sunny, with a high near 71. North wind around 7 mph.

Sunday Night:

Mostly Clear

Lo 51 °F

Mostly clear, with a low around 51. Northwest wind around 6 mph.

Labor Day:

Sunny

Hi 77 °F

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

Monday Night:

Mostly Clear

Lo 59 °F

Mostly clear, with a low around 59. West wind around 5 mph.

Tuesday:

Mostly Sunny

Hi 78 °F

Mostly sunny, with a high near 78. West wind around 6 mph.

Tuesday Night:

Mostly Cloudy

Lo 60 °F

Mostly cloudy, with a low around 60. West wind around 5 mph.

Wednesday:

Partly Sunny then Slight Chance Rain Showers

Hi 77 °F

A slight chance of rain showers after 5pm. Partly sunny, with a high near 77. South wind 3 to 10 mph, with gusts as high as 23 mph.

Wednesday Night:

Chance Rain Showers

Lo 67 °F

A chance of rain showers. Mostly cloudy, with a low around 67. Southwest wind around 12 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

Thursday:

Chance Rain Showers then Partly Sunny

Hi 80 °F

A chance of rain showers before 11am. Partly sunny, with a high near 80. West wind around 13 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

Thursday Night:

Partly Cloudy

Lo 59 °F

Partly cloudy, with a low around 59. Northwest wind 7 to 12 mph, with gusts as high as 25 mph.

Friday:

Mostly Sunny

Hi 72 °F

Mostly sunny, with a high near 72. Northwest wind around 8 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 5am through Sun 4pm

Issued by:
National Weather Service Boston / Norton, MA
Updated Sat Sep 5, 2026 2:13am EDT

5:00am

Clear

63°F
Dew Pt 59°F
Wind from NW

NW 6 mph
Precip: 0%

6:00am

Sunny

62°F
Dew Pt 59°F
Wind from NW

NW 6 mph
Precip: 0%

7:00am

Sunny

62°F
Dew Pt 59°F
Wind from NW

NW 6 mph
Precip: 0%

8:00am

Sunny

64°F
Dew Pt 60°F
Wind from N

N 6 mph
Precip: 1%

9:00am

Mostly Sunny

66°F
Dew Pt 61°F
Wind from N

N 7 mph
Precip: 2%

10:00am

Partly Sunny

69°F
Dew Pt 62°F
Wind from N

N 7 mph
Precip: 4%

11:00am

Partly Sunny

70°F
Dew Pt 62°F
Wind from NE

NE 8 mph
Precip: 6%

12:00pm

Partly Sunny

70°F
Dew Pt 62°F
Wind from NE

NE 8 mph
Precip: 9%

1:00pm

Partly Sunny

71°F
Dew Pt 62°F
Wind from NE

NE 8 mph
Precip: 12%

2:00pm

Chance Rain Showers

71°F
Dew Pt 61°F
Wind from NE

NE 8 mph
Precip: 27%
Rain: 0.01 in

3:00pm

Chance Rain Showers

70°F
Dew Pt 61°F
Wind from NE

NE 7 mph
Precip: 33%
Rain: 0.02 in

4:00pm

Chance Rain Showers

70°F
Dew Pt 61°F
Wind from NE

NE 7 mph
Precip: 34%
Rain: 0.02 in

5:00pm

Chance Rain Showers

69°F
Dew Pt 60°F
Wind from E

E 7 mph
Precip: 35%
Rain: 0.02 in

6:00pm

Chance Rain Showers

66°F
Dew Pt 60°F
Wind from NE

NE 5 mph
Precip: 36%
Rain: 0.02 in

7:00pm

Chance Rain Showers

64°F
Dew Pt 59°F
Wind from NE

NE 3 mph
Precip: 29%
Rain: 0.01 in

8:00pm

Slight Chance Rain Showers

64°F
Dew Pt 59°F
Wind from NE

NE 2 mph
Precip: 16%

9:00pm

Mostly Cloudy

63°F
Dew Pt 59°F
Wind from N

N 2 mph
Precip: 12%

10:00pm

Mostly Cloudy

62°F
Dew Pt 59°F
Wind from N

N 2 mph
Precip: 9%

11:00pm

Partly Cloudy

62°F
Dew Pt 59°F
Wind from N

N 2 mph
Precip: 8%

Sun
12:00am

Partly Cloudy

61°F
Dew Pt 58°F
Wind from N

N 3 mph
Precip: 8%

Sun
1:00am

Partly Cloudy

60°F
Dew Pt 58°F
Wind from N

N 3 mph
Precip: 9%

Sun
2:00am

Partly Cloudy

60°F
Dew Pt 57°F
Wind from N

N 3 mph
Precip: 6%

Sun
3:00am

Partly Cloudy

59°F
Dew Pt 57°F
Wind from N

N 5 mph
Precip: 7%

Sun
4:00am

Mostly Clear

58°F
Dew Pt 56°F
Wind from N

N 5 mph
Precip: 6%

Sun
5:00am

Mostly Clear

58°F
Dew Pt 56°F
Wind from N

N 5 mph
Precip: 4%

Sun
6:00am

Sunny

57°F
Dew Pt 55°F
Wind from N

N 5 mph
Precip: 5%

Sun
7:00am

Sunny

56°F
Dew Pt 55°F
Wind from N

N 5 mph
Precip: 4%

Sun
8:00am

Sunny

59°F
Dew Pt 56°F
Wind from N

N 6 mph
Precip: 2%

Sun
9:00am

Sunny

61°F
Dew Pt 56°F
Wind from N

N 6 mph
Precip: 2%

Sun
10:00am

Sunny

64°F
Dew Pt 56°F
Wind from N

N 6 mph
Precip: 2%

Sun
11:00am

Sunny

66°F
Dew Pt 55°F
Wind from N

N 6 mph
Precip: 3%

Sun
12:00pm

Sunny

68°F
Dew Pt 55°F
Wind from N

N 7 mph
Precip: 4%

Sun
1:00pm

Sunny

69°F
Dew Pt 54°F
Wind from N

N 6 mph
Precip: 3%

Sun
2:00pm

Sunny

70°F
Dew Pt 54°F
Wind from N

N 6 mph
Precip: 3%

Sun
3:00pm

Mostly Sunny

70°F
Dew Pt 54°F
Wind from NW

NW 6 mph
Precip: 2%

Sun
4:00pm

Mostly Sunny

70°F
Dew Pt 54°F
Wind from NW

NW 5 mph
Precip: 1%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 050629
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
229 AM EDT Sat Sep 5 2026

.WHAT HAS CHANGED...
Issued a couple of marine and coastal headlines for the holiday 
weekend. For boaters, a Small Craft Advisory has been issued and is 
in effect from 2 am to 8 pm Sunday. For beachgoers, a Rip Current 
Statement is in effect for east-facing beaches and the islands from 
7 am to 8 pm through much of the day on Sunday.

&&

.KEY MESSAGES...

- A mainly dry day on tap except along and east of the I- 495 corridor
  where there is a chance for afternoon showers and perhaps a 
  thunderstorm or two.


- 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... A mainly dry day on tap except along and east of 
the I-495 corridor where there is a chance for afternoon showers and 
perhaps a thunderstorm or two.

The main weather maker for the next day or so will be a broad cutoff 
low pressure over the Canadian Maritimes. As a result, some 
unsettled weather is possible for the start of the Labor Day Holiday 
weekend, more details ahead. Should see a rather pleasant start to 
the day with mainly clear skies and temperatures in the lower to mid 
60s. Temps climb into the lower to mid 70s, and when combined with 
cooling aloft (925 mb temps cooling to 12-14C), will result in steep 
low level lapse rates. These lapse rates will drive diurnal cumulus 
which likely builds into areas of showers and a few thunderstorms as 
SFC CAPE values climb to 300-500 J/kg. High-res guidance features an 
inverted trough moving across the CWA from NE to SW between 18-22z. 
This feature serves as a focus for convection and more organized 
precipitation chances during that timeframe. Believe the latest NBM 
has a good handle on these changes with hourly POPs increasing to 45-
50 percent across interior areas. Not expecting a washout by any 
means, but a brief period of heavy rain is possible as these showers 
move through.  Any lingering showers quickly dissipate with the loss 
of daytime heating this evening. Expect a cooler night as somewhat 
ideal conditions for radiational cooling are expected with light 
winds and mostly clear skies. Lows will generally be in the low to 
mid 50s and even the upper 40s in more favorable locations such as 
local river valleys. 


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 /06Z SATURDAY THROUGH WEDNESDAY/...
Forecaster Confidence Levels...

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


UPDATE: 06Z TAF

Rest of Tonight...Moderate confidence.

VFR for the majority of terminals through daybreak. Slight
chance of MVFR across the Cape and Islands. Light northwest 
winds, with light north- northeast wind for eastern MA.

Today...Moderate confidence. 

Forecast guidance suggest there may be two cloud bases today, 
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. Also
moderate confidence in the risk for -SHRA between 18-22z this
afternoon. 

KBDL Terminal...High confidence in TAF.

Outlook /Sunday Night through Wednesday/...

Sunday Night through Tuesday Night: VFR. 

Wednesday: VFR. Windy with local gusts up to 30 kt. Slight
chance SHRA.

&&

.MARINE...
Forecaster Confidence Levels...

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

Through Sunday...

Winds shift N and NE today sustained to 10-15 kt. Seas 2-3 ft, 
increasing slightly heading into Sunday. Moderate chance of 
showers later this afternoon across much of the waters. Slight 
chance for isolated thunderstorms. Small Craft conditions 
develop across the eastern outer waters after 06z Sunday 
lingering through much of the day. Rip Current Statement is in 
effect from early Sunday morning to the evening. 

Outlook /Sunday Night through Wednesday/...

Sunday Night: Winds less than 25 kt. Seas up to 5 ft. 

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

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

Tuesday through Tuesday Night: Winds less than 25 kt. 

Wednesday: Low risk for Small Craft Advisory winds with local
gusts up to 30 kt. Seas locally approaching 5 ft. 

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...High Risk for Rip Currents from late tonight through Sunday evening 
     for MAZ007-014>016-019-022>024.
RI...None.
MARINE...Small Craft Advisory from 2 AM to 8 PM EDT Sunday for ANZ250-
     254-255.

&&

$$

DISCUSSION...Dooley/FT
AVIATION...Dooley/FT
MARINE...Dooley/FT

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