Lexington Weather

Current Conditions [‒] Current Conditions [+]

70.9°F Colder than last hour.

21.6°C

Muggy

Clear

Tonight: Lo 59 °F

Saturday: Hi 79 °F

Dew Point: 61.3°F Decreased 0.6°F since last hour.

Humidity: 72% Increased 2.0% since last hour.

Barometer: 29.99 in Rising 0.03 inHg/hr

1016 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: 1 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 Aug 28, 2026 2:11pm EDT

Overview:

- Mainly dry this afternoon, though a rogue shower or thunderstorm remains possible through sunset.

- A fall-like feel with seasonable temperatures and very low humidity Saturday, becoming more summer-like Sunday. The weekend remains dry, with increasing clouds late Sunday.

- Cloudy and unsettled early to mid next week with several opportunities for showers and storms. While Monday now looks cloudy but generally dry, better chances for showers and storms are anticipated for Tue through Thurs.

Tonight:

Partly Cloudy

Lo 59 °F

Partly cloudy, with a low around 59. Northwest wind around 7 mph.

Saturday:

Sunny

Hi 79 °F

Sunny, with a high near 79. Northwest wind around 6 mph.

Saturday Night:

Mostly Clear

Lo 60 °F

Mostly clear, with a low around 60. Southwest wind around 5 mph.

Sunday:

Mostly Sunny

Hi 84 °F

Mostly sunny, with a high near 84. Southwest wind 5 to 9 mph.

Sunday Night:

Chance Rain Showers

Lo 66 °F

A chance of rain showers between 8pm and 2am. Mostly cloudy, with a low around 66. West wind 5 to 8 mph. Chance of precipitation is 30%.

Monday:

Mostly Sunny

Hi 80 °F

Mostly sunny, with a high near 80. North wind around 7 mph.

Monday Night:

Partly Cloudy

Lo 62 °F

Partly cloudy, with a low around 62. Southeast wind 2 to 6 mph.

Tuesday:

Chance Rain Showers

Hi 78 °F

A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 78. South wind 2 to 7 mph. Chance of precipitation is 40%.

Tuesday Night:

Showers And T-Storms Likely

Lo 64 °F

Tuesday Night: Showers And Thunderstorms Likely

Showers and thunderstorms likely. Mostly cloudy, with a low around 64. South wind around 7 mph. Chance of precipitation is 60%.

Wednesday:

Rain Showers Likely

Hi 79 °F

Rain showers likely before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 79. South wind 5 to 8 mph. Chance of precipitation is 60%.

Wednesday Night:

Chance Showers And T-Storms

Lo 66 °F

Wednesday Night: Chance Showers And Thunderstorms

A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Southwest wind around 7 mph. Chance of precipitation is 50%.

Thursday:

Chance Rain Showers

Hi 80 °F

A chance of rain showers. Partly sunny, with a high near 80. West wind around 7 mph. Chance of precipitation is 40%.

Thursday Night:

Chance Rain Showers

Lo 63 °F

A chance of rain showers before 2am. Mostly cloudy, with a low around 63. Northwest wind around 6 mph. Chance of precipitation is 40%.

Friday:

Partly Sunny then Slight Chance Rain Showers

Hi 77 °F

A slight chance of rain showers after 2pm. Partly sunny, with a high near 77. Northwest wind around 7 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 12am through Sun 11am

Issued by:
National Weather Service Boston / Norton, MA
Updated Fri Aug 28, 2026 2:11pm EDT

12:00am

Partly Cloudy

68°F
Dew Pt 62°F
Wind from NW

NW 7 mph
Precip: 0%

1:00am

Partly Cloudy

66°F
Dew Pt 60°F
Wind from N

N 7 mph
Precip: 0%

2:00am

Mostly Clear

65°F
Dew Pt 58°F
Wind from N

N 7 mph
Precip: 0%

3:00am

Mostly Clear

63°F
Dew Pt 57°F
Wind from N

N 7 mph
Precip: 0%

4:00am

Mostly Clear

61°F
Dew Pt 55°F
Wind from NW

NW 7 mph
Precip: 0%

5:00am

Mostly Clear

60°F
Dew Pt 54°F
Wind from NW

NW 6 mph
Precip: 0%

6:00am

Sunny

59°F
Dew Pt 53°F
Wind from NW

NW 6 mph
Precip: 0%

7:00am

Sunny

59°F
Dew Pt 53°F
Wind from NW

NW 6 mph
Precip: 0%

8:00am

Sunny

61°F
Dew Pt 54°F
Wind from N

N 6 mph
Precip: 0%

9:00am

Sunny

64°F
Dew Pt 54°F
Wind from N

N 6 mph
Precip: 0%

10:00am

Sunny

69°F
Dew Pt 54°F
Wind from N

N 5 mph
Precip: 0%

11:00am

Sunny

71°F
Dew Pt 54°F
Wind from N

N 5 mph
Precip: 0%

12:00pm

Sunny

73°F
Dew Pt 53°F
Wind from NW

NW 3 mph
Precip: 0%

1:00pm

Sunny

76°F
Dew Pt 53°F
Wind from NW

NW 3 mph
Precip: 0%

2:00pm

Sunny

77°F
Dew Pt 53°F
Wind from W

W 3 mph
Precip: 0%

3:00pm

Sunny

77°F
Dew Pt 53°F
Wind from W

W 3 mph
Precip: 0%

4:00pm

Sunny

79°F
Dew Pt 54°F
Wind from W

W 3 mph
Precip: 0%

5:00pm

Sunny

77°F
Dew Pt 54°F
Wind from SW

SW 3 mph
Precip: 0%

6:00pm

Clear

77°F
Dew Pt 54°F
Wind from SW

SW 3 mph
Precip: 0%

7:00pm

Clear

74°F
Dew Pt 55°F
Wind from S

S 3 mph
Precip: 0%

8:00pm

Mostly Clear

70°F
Dew Pt 55°F
Wind from S

S 3 mph
Precip: 0%

9:00pm

Mostly Clear

68°F
Dew Pt 55°F
Wind from SW

SW 3 mph
Precip: 0%

10:00pm

Mostly Clear

66°F
Dew Pt 55°F
Wind from SW

SW 3 mph
Precip: 0%

11:00pm

Mostly Clear

64°F
Dew Pt 55°F
Wind from SW

SW 3 mph
Precip: 0%

Sun
12:00am

Mostly Clear

63°F
Dew Pt 55°F
Wind from W

W 3 mph
Precip: 0%

Sun
1:00am

Mostly Clear

62°F
Dew Pt 55°F
Wind from W

W 3 mph
Precip: 0%

Sun
2:00am

Partly Cloudy

61°F
Dew Pt 54°F
Wind from W

W 3 mph
Precip: 0%

Sun
3:00am

Mostly Clear

60°F
Dew Pt 54°F
Wind from SW

SW 3 mph
Precip: 0%

Sun
4:00am

Partly Cloudy

60°F
Dew Pt 54°F
Wind from SW

SW 5 mph
Precip: 0%

Sun
5:00am

Partly Cloudy

60°F
Dew Pt 53°F
Wind from SW

SW 5 mph
Precip: 0%

Sun
6:00am

Mostly Sunny

60°F
Dew Pt 53°F
Wind from SW

SW 5 mph
Precip: 0%

Sun
7:00am

Sunny

61°F
Dew Pt 54°F
Wind from SW

SW 5 mph
Precip: 0%

Sun
8:00am

Sunny

65°F
Dew Pt 56°F
Wind from SW

SW 5 mph
Precip: 0%

Sun
9:00am

Sunny

69°F
Dew Pt 58°F
Wind from SW

SW 6 mph
Precip: 0%

Sun
10:00am

Sunny

74°F
Dew Pt 59°F
Wind from SW

SW 7 mph
Precip: 0%

Sun
11:00am

Mostly Sunny

78°F
Dew Pt 59°F
Wind from SW

SW 8 mph
Precip: 0%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 282344
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
744 PM EDT Fri Aug 28 2026

.WHAT HAS CHANGED...
No significant changes.

&&

.KEY MESSAGES...

- Mainly dry this afternoon, though a rogue shower or
  thunderstorm remains possible through sunset.

- A fall-like feel with seasonable temperatures and very low
  humidity Saturday, becoming more summer-like Sunday. The
  weekend remains dry, with increasing clouds late Sunday.

- Cloudy and unsettled early to mid next week with several
  opportunities for showers and storms. While Monday now looks
  cloudy but generally dry, better chances for showers and
  storms are anticipated for Tue through Thurs.

&&

.DISCUSSION...
KEY MESSAGE 1...Mainly dry this afternoon, though a rogue shower or 
thunderstorm remains possible through sunset.

Seasonably warm and muggy this afternoon, though many locations will 
remain dry. Earlier cloud cover resulted in lower CAPE values and, 
in some instances, a weak cap along and east of I-95. However, that 
cap is eroding, with isolated showers and garden-variety 
thunderstorms developing. With the approach of a cold front this 
afternoon, a rogue pop-up shower or thunderstorm remains possible; 
however, coverage should be sparse.

Storms should remain sub-severe, though sufficient DCAPE of 800-1000 
J/kg exists mainly west of I-495 in MA and across northern and 
central CT. Any storms that develop in these areas could produce 
gusty straight-line winds. The best timing for storms is between 2 
and 8 PM. With the loss of daytime heating, any storms that develop 
will quickly diminish. That being said, there is nothing worth 
canceling outdoor plans over.

KEY MESSAGE 2...A fall-like feel with seasonable temperatures and 
very low humidity Saturday, becoming more summer-like Sunday. The 
weekend remains dry, with increasing clouds late Sunday.

A post-cold-frontal air mass arrives overnight, ushering in 
refreshing conditions and setting the stage for a nice weekend. High 
pressure moves in from the northwest, leading to dry weather both 
Saturday and Sunday.

Dew points Saturday will be fall-like, mainly in the 50s. However, 
the lower humidity will be short-lived, as southwest flow returns 
Sunday and brings dew points back into the middle and upper 60s. 
Otherwise, temperatures will be seasonable Saturday, with highs in 
the upper 70s to around 80 degrees, then slightly warmer Sunday, 
with highs in the lower to middle 80s.

As mentioned, Sunday remains dry, though clouds increase during the 
afternoon ahead of the next chance for rain. A few cool nights are 
also expected, allowing for a break from the air conditioning. 
Temperatures fall into the 50s overnight into Saturday morning and 
again Saturday night into Sunday morning, though urban centers 
remain in the lower 60s.

Additionally, there is a moderate risk for rip currents Saturday. 
Those heading to the beach should check with beach staff or 
lifeguards regarding rip current conditions before entering the 
water. 

KEY MESSAGE 3...Cloudy and unsettled early to mid next week 
with several opportunities for showers and storms. While Monday 
now looks cloudy but generally dry, better chances for showers 
and storms are anticipated for Tue through Thurs.

Still looks unsettled during the early to middle part of the 
workweek. A backdoor cool front looks to build westward through 
Southern New England on Mon with generally dry but cloudy weather, 
then remain to our southwest Tue and Wed. Periods of showers and 
storms now seem more favored around Tue and Wed versus Mon. Thurs 
may offer a better shot at widespread showers and storms regionally, 
as a cold front looks to progress the stalled frontal boundary 
southward. Expect a narrower range in high/low temps Mon through 
Wed, with highs running a little cooler than normal and lows 
slightly milder than normal.

&&

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

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

00Z TAF Update: 

Tonight: High confidence.

VFR. WNW winds under 10 kt shift to northerly and increase to 
around 10 kt with occasional sub-20 kt gusts overnight, then 
trending northerly under 10 kt by daybreak.

Saturday and Saturday Night...High confidence.

VFR. NW winds 5 to 8 kt, with a sea breeze possible across eastern 
MA during the day. Winds shift to the SW overnight, with speeds less 
than 5 kt.

KBOS Terminal...High confidence.

KBDL Terminal...High confidence.

Outlook /Saturday Night through Wednesday/...

Sunday: VFR. Breezy. 

Sunday Night: VFR. Breezy. Chance SHRA.

Monday: VFR. 

Monday Night: VFR. Slight chance SHRA.

Tuesday: VFR. Chance SHRA, slight chance TSRA.

Tuesday Night: VFR. SHRA likely, slight chance TSRA.

Wednesday: Mainly VFR, with local IFR possible. Breezy. Chance
SHRA, slight chance TSRA.

&&

.MARINE...
Forecaster Confidence Levels...

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

Through Sunday...High confidence.

A cold front clears the coast tonight, with winds shifting from SW 
to N by Saturday. However, winds over the waters off the eastern MA 
coast remain E due to a localized sea breeze. In general, ideal 
boating conditions are expected Saturday.

Winds shift to SSW by Sunday, with gusts of 20 to 25 kt, especially 
in areas prone to funneling, such as Vineyard Sound and Buzzards 
Bay. Seas during this period will generally range from 2 to 4 ft, 
with the highest waves over the outer waters.

Outlook /Saturday Night through Wednesday/...

Sunday: Winds less than 25 kt. 

Sunday Night: Winds less than 25 kt. Seas locally approaching
5 ft. Chance of rain showers. 

Monday through Monday Night: Winds less than 25 kt. 

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

Tuesday Night: Winds less than 25 kt. Areas of seas approaching
5 ft. Chance of rain showers, slight chance of thunderstorms. 

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

&&

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

&&

$$

DISCUSSION...Loconto/Dooley
AVIATION...Loconto/Dooley
MARINE...Loconto/Dooley

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