Lexington Weather

Current Conditions [‒] Current Conditions [+]

81.1°F

27.3°C

Feels like 84.9°F

Hot

Few Clouds

Today: Hi 89 °F

Tonight: Lo 66 °F

Dew Point: 70.3°F

Humidity: 70%

Air Quality Index: 38

Good

(Ozone)

Barometer: 29.71 in S

1006 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.00 in

Rain Thursday: 0.00 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: 1 mph

Gusts: 2 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

NWS Weather Forecast -
Today, Tonight, & Saturday through Thursday Night

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Fri Jul 10, 2026 7:13am EDT

Overview:

- Another warm and humid day today with a chance for isolated showers and storms.

- Dry and seasonable weather with low humidity levels this weekend into Monday.

- Heat and humidity return by midweek.

Today:

Mostly Sunny

Hi 89 °F

Mostly sunny, with a high near 89. Northwest wind 6 to 9 mph.

Tonight:

Partly Cloudy

Lo 66 °F

Partly cloudy, with a low around 66. North wind 2 to 7 mph.

Saturday:

Mostly Sunny

Hi 84 °F

Mostly sunny, with a high near 84. Northeast wind 3 to 7 mph.

Saturday Night:

Mostly Clear

Lo 63 °F

Mostly clear, with a low around 63. North wind 2 to 6 mph.

Sunday:

Sunny

Hi 82 °F

Sunny, with a high near 82. Northeast wind around 7 mph.

Sunday Night:

Mostly Clear

Lo 64 °F

Mostly clear, with a low around 64. South wind around 6 mph.

Monday:

Sunny

Hi 90 °F

Sunny, with a high near 90. Southwest wind 3 to 10 mph.

Monday Night:

Mostly Clear

Lo 68 °F

Mostly clear, with a low around 68. Southwest wind 7 to 10 mph.

Tuesday:

Sunny

Hi 94 °F

Sunny, with a high near 94. Southwest wind 7 to 12 mph.

Tuesday Night:

Mostly Clear

Lo 76 °F

Mostly clear, with a low around 76. Southwest wind around 10 mph.

Wednesday:

Mostly Sunny then Slight Chance Showers And T-Storms

Hi 94 °F

Wednesday: Mostly Sunny then Slight Chance Showers And Thunderstorms

A slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 94. West wind 8 to 12 mph.

Wednesday Night:

Slight Chance Showers And T-Storms

Lo 70 °F

Wednesday Night: Slight Chance Showers And Thunderstorms

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 70. West wind 5 to 9 mph.

Thursday:

Slight Chance Rain Showers then Mostly Sunny

Hi 91 °F

A slight chance of rain showers before 7am. Mostly sunny, with a high near 91. Northwest wind 5 to 9 mph.

Thursday Night:

Partly Cloudy

Lo 70 °F

Partly cloudy, with a low around 70. Northwest wind around 7 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 12pm through Sat 11pm

Issued by:
National Weather Service Boston / Norton, MA
Updated Fri Jul 10, 2026 7:13am EDT

12:00pm

Partly Sunny

85°F
Dew Pt 70°F
Heat Index: 90°F
Wind from NW

NW 9 mph
Precip: 0%

1:00pm

Partly Sunny

87°F
Dew Pt 69°F
Heat Index: 91°F
Wind from NW

NW 9 mph
Precip: 0%

2:00pm

Partly Sunny

87°F
Dew Pt 69°F
Heat Index: 91°F
Wind from NW

NW 8 mph
Precip: 6%

3:00pm

Partly Sunny

87°F
Dew Pt 69°F
Heat Index: 91°F
Wind from NW

NW 8 mph
Precip: 11%

4:00pm

Partly Sunny

87°F
Dew Pt 69°F
Heat Index: 91°F
Wind from NW

NW 9 mph
Precip: 13%

5:00pm

Partly Sunny

85°F
Dew Pt 69°F
Heat Index: 89°F
Wind from NW

NW 8 mph
Precip: 9%

6:00pm

Mostly Cloudy

83°F
Dew Pt 69°F
Heat Index: 87°F
Wind from NW

NW 7 mph
Precip: 9%

7:00pm

Mostly Cloudy

83°F
Dew Pt 69°F
Heat Index: 87°F
Wind from N

N 6 mph
Precip: 8%

8:00pm

Mostly Cloudy

78°F
Dew Pt 68°F
Wind from N

N 3 mph
Precip: 4%

9:00pm

Partly Cloudy

76°F
Dew Pt 68°F
Wind from NE

NE 3 mph
Precip: 3%

10:00pm

Partly Cloudy

75°F
Dew Pt 67°F
Wind from N

N 2 mph
Precip: 7%

11:00pm

Partly Cloudy

74°F
Dew Pt 67°F
Wind from N

N 3 mph
Precip: 11%

Sat
12:00am

Partly Cloudy

73°F
Dew Pt 65°F
Wind from NW

NW 3 mph
Precip: 10%

Sat
1:00am

Partly Cloudy

72°F
Dew Pt 64°F
Wind from N

N 3 mph
Precip: 9%

Sat
2:00am

Partly Cloudy

71°F
Dew Pt 63°F
Wind from N

N 3 mph
Precip: 9%

Sat
3:00am

Partly Cloudy

68°F
Dew Pt 62°F
Wind from N

N 3 mph
Precip: 8%

Sat
4:00am

Partly Cloudy

68°F
Dew Pt 61°F
Wind from N

N 3 mph
Precip: 8%

Sat
5:00am

Mostly Clear

67°F
Dew Pt 60°F
Wind from N

N 3 mph
Precip: 8%

Sat
6:00am

Mostly Sunny

67°F
Dew Pt 60°F
Wind from N

N 3 mph
Precip: 9%

Sat
7:00am

Mostly Sunny

68°F
Dew Pt 61°F
Wind from N

N 3 mph
Precip: 7%

Sat
8:00am

Mostly Sunny

71°F
Dew Pt 61°F
Wind from N

N 5 mph
Precip: 6%

Sat
9:00am

Sunny

74°F
Dew Pt 61°F
Wind from NE

NE 5 mph
Precip: 6%

Sat
10:00am

Mostly Sunny

78°F
Dew Pt 60°F
Wind from N

N 6 mph
Precip: 9%

Sat
11:00am

Partly Sunny

79°F
Dew Pt 60°F
Wind from NE

NE 6 mph
Precip: 9%

Sat
12:00pm

Mostly Sunny

81°F
Dew Pt 59°F
Wind from NE

NE 6 mph
Precip: 9%

Sat
1:00pm

Mostly Sunny

82°F
Dew Pt 59°F
Wind from NE

NE 6 mph
Precip: 11%

Sat
2:00pm

Mostly Sunny

82°F
Dew Pt 59°F
Wind from E

E 7 mph
Precip: 1%

Sat
3:00pm

Mostly Sunny

82°F
Dew Pt 59°F
Wind from E

E 7 mph
Precip: 2%

Sat
4:00pm

Mostly Sunny

82°F
Dew Pt 58°F
Wind from E

E 7 mph
Precip: 3%

Sat
5:00pm

Mostly Sunny

81°F
Dew Pt 58°F
Wind from E

E 6 mph
Precip: 1%

Sat
6:00pm

Mostly Clear

80°F
Dew Pt 58°F
Heat Index: 81°F
Wind from E

E 6 mph
Precip: 1%

Sat
7:00pm

Mostly Clear

78°F
Dew Pt 58°F
Wind from SE

SE 5 mph
Precip: 0%

Sat
8:00pm

Mostly Clear

75°F
Dew Pt 58°F
Wind from SE

SE 3 mph
Precip: 0%

Sat
9:00pm

Mostly Clear

72°F
Dew Pt 58°F
Wind from SE

SE 2 mph
Precip: 0%

Sat
10:00pm

Mostly Clear

71°F
Dew Pt 58°F
Wind from SW

SW 2 mph
Precip: 0%

Sat
11:00pm

Mostly Clear

69°F
Dew Pt 58°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 101158
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
758 AM EDT Fri Jul 10 2026

.WHAT HAS CHANGED...
No changes to the forecast for this update cycle.

&&

.KEY MESSAGES...

- Another warm and humid day today with a chance for isolated 
showers and storms. 

- Dry and seasonable weather with low humidity levels this weekend 
into Monday.

- Heat and humidity return by midweek.

&&

.DISCUSSION...
KEY MESSAGE 1...Another warm and humid day today with a chance
for isolated showers and storms. 
 
Cold front drops S from northern New England, crossing through 
northern MA this morning before slowing S of the Mass Pike by
the afternoon. Front acts as a focus for showers and isolated 
thunderstorms along and S of the Mass Pike as the column dries 
out significantly behind the front. General risks with any 
limited thunder activity will be limited to lightning and 
locally heavy rain as lingering cloud cover limits CAPE values 
to >1000 J/kg. Could see locally higher shower and storm 
coverage on the east coast of MA with a sea breeze acting as a 
mesoscale lifting mechanism. Thus, have POPs around 20-35% this 
afternoon in those areas. The other story today will be hot and 
humid conditions as highs warm into the upper 80s to near 90 for
much of the CWA. Highest heat index values will be along and S 
of the Mass Pike where dew point values will likely be near or 
above 70 degrees. 


KEY MESSAGE 2...Dry and seasonable weather with low humidity
levels this weekend into Monday.

Surface high pressure from Canada builds southward under
cyclonic flow aloft. NW flow aloft will cool 850 mb temps to 
+13-15C, which translates to highs in the mid 70s to low to mid 
80s. Should feel quite a bit more comfortable than what we've 
experienced over the last few weeks with low humidity levels and
dry weather Saturday through Monday. Other than some cooler 
seabreezes near the eastern coast, it's shaping up to be a great
weekend weatherwise. 

KEY MESSAGE 3...Heat and humidity return by midweek. 

A sprawling 594dm ridge over the central CONUS builds east
through midweek. By Tuesday and especially Wednesday,
temperatures become quite hot as 850 mb temps soar again into
the +18 to +22C range. These values are similar (somewhat cooler 
by comparison) to our last extended spell of high heat/humidity.
The potential could exist for temperatures in the 90s with high
humidity levels perhaps necessitating a period of heat 
headlines for midweek. The risk for thunderstorms looks limited,
with a better chance on Wednesday as NW flow aloft increases 
and a plume of elevated mid-level lapse rates builds in favoring
stronger instability.

&&

.AVIATION /12Z FRIDAY THROUGH TUESDAY/...
Forecaster Confidence Levels...

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

Today: Moderate confidence. 

Main issue for the TAFs Fri is the timing of the cold front 
southward. Current indications are for winds turning NWly under
10 kt for BDL-ORH-BED-BOS between 13-15z with BKN/OVC VFR
ceilings; winds turning NE under 10 kt at BOS early afternoon. 
Thinking area more favored to see SCT SHRA/TS is from HFD to 
PVD south and east after 17z, after overnight stratus disperses.
A slower passage would put more TAFs at risk for SHRA/TS. 

Tonight: High confidence. 

Lingering SHRA/TS moves offshore early Fri night to VFR
conditions. Outside chance at river valley fog if skies can
clear out. Winds become light northerly overnight.

Saturday: High confidence.

VFR. Light E to NE winds.

KBOS Terminal...Moderate confidence. E seabreeze could develop
sooner than currently in the TAF. Most SHRA/TSRA expected to
remain S of the terminal, but there is a low risk 18-23Z.

KBDL Terminal...Moderate confidence. Low risk for an isolated
SHRA/TSRA this afternoon. No enough confidence to include in the
TAF.

Outlook /Saturday Night through Tuesday/...

Saturday Night through Sunday Night: VFR. 

Monday through Tuesday: VFR. Breezy.

&&

.MARINE...
Forecaster Confidence Levels...

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

Through Friday Night...High confidence.

A weak front approaches the waters from the NW this afternoon, 
but is not likely to pass the southern coastal waters until late 
Friday night at the earliest. A risk for scattered showers or 
thunderstorms tonight across the southern waters. Tranquil 
weather returns for the weekend under high pressure. 

Outlook /Saturday Night through Tuesday/...

Saturday Night: Winds less than 25 kt. 

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

Monday: Winds less than 25 kt. 

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

Tuesday: Low risk for Small Craft Advisory winds with areas of
gusts up to 30 kt. Areas of seas approaching 5 ft.

&&

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

&&

$$

DISCUSSION...FT
AVIATION...Belk/FT
MARINE...FT

CLOSE