Lexington Weather

Current Conditions [‒] Current Conditions [+]

71.8°F Warmer than last hour.

22.1°C

Comfortable

Clear

Today: Hi 75 °F

Tonight: Lo 52 °F

Dew Point: 49.3°F Increased 2.4°F since last hour .

Humidity: 45% Increased 1.0% since last hour.

Air Quality Index: 28

Good

(Fine Particles)

Barometer: 30.05 in Falling 0.02 inHg/hr

1018 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.00 in

Rain Monday: 0.00 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: Calm

Gusts: 0 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

NWS Weather Forecast -
Today, Tonight, & Wednesday through Monday Night

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Tue Jun 2, 2026 5:14am EDT

Overview:

- Quiet and dry stretch of weather today through the end of the work week.

- Potentially unsettled and cooler conditions this weekend into early next week.

Today:

Mostly Sunny

Hi 75 °F

Mostly sunny, with a high near 75. Northwest wind 3 to 8 mph.

Tonight:

Partly Cloudy

Lo 52 °F

Partly cloudy, with a low around 52. Northwest wind around 6 mph.

Wednesday:

Sunny

Hi 79 °F

Sunny, with a high near 79. Northwest wind 2 to 7 mph.

Wednesday Night:

Clear

Lo 57 °F

Clear, with a low around 57. Southwest wind around 6 mph.

Thursday:

Sunny

Hi 86 °F

Sunny, with a high near 86. West wind 3 to 8 mph.

Thursday Night:

Partly Cloudy

Lo 61 °F

Partly cloudy, with a low around 61. West wind around 7 mph.

Friday:

Mostly Sunny

Hi 89 °F

Mostly sunny, with a high near 89. West wind 5 to 8 mph.

Friday Night:

Mostly Cloudy

Lo 66 °F

Mostly cloudy, with a low around 66. West wind around 7 mph.

Saturday:

Partly Sunny then Slight Chance Showers And T-Storms

Hi 85 °F

Saturday: Partly Sunny then Slight Chance Showers And Thunderstorms

A slight chance of rain showers between noon and 2pm, then a slight chance of showers and thunderstorms between 2pm and 3pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. West wind 5 to 9 mph. Chance of precipitation is 30%.

Saturday Night:

Chance Showers And T-Storms

Lo 58 °F

Saturday Night: Chance Showers And Thunderstorms

A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Northeast wind 3 to 8 mph. Chance of precipitation is 30%.

Sunday:

Chance Rain Showers

Hi 72 °F

A chance of rain showers. Mostly cloudy, with a high near 72. Northeast wind 5 to 9 mph. Chance of precipitation is 40%.

Sunday Night:

Chance Rain Showers

Lo 54 °F

A chance of rain showers. Mostly cloudy, with a low around 54. Northeast wind 3 to 7 mph. Chance of precipitation is 30%.

Monday:

Slight Chance Rain Showers

Hi 72 °F

A slight chance of rain showers. Partly sunny, with a high near 72. Northeast wind 5 to 9 mph.

Monday Night:

Slight Chance Rain Showers

Lo 56 °F

A slight chance of rain showers. Mostly cloudy, with a low around 56. Northeast wind 3 to 7 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 12pm through Wed 11pm

Issued by:
National Weather Service Boston / Norton, MA
Updated Tue Jun 2, 2026 5:14am EDT

12:00pm

Mostly Sunny

70°F
Dew Pt 45°F
Wind from NW

NW 7 mph
Precip: 1%

1:00pm

Mostly Sunny

71°F
Dew Pt 44°F
Wind from NW

NW 7 mph
Precip: 1%

2:00pm

Mostly Sunny

73°F
Dew Pt 43°F
Wind from NW

NW 8 mph
Precip: 1%

3:00pm

Mostly Sunny

74°F
Dew Pt 43°F
Wind from N

N 8 mph
Precip: 2%

4:00pm

Partly Sunny

74°F
Dew Pt 43°F
Wind from N

N 8 mph
Precip: 2%

5:00pm

Partly Sunny

74°F
Dew Pt 43°F
Wind from NW

NW 7 mph
Precip: 2%

6:00pm

Mostly Cloudy

72°F
Dew Pt 45°F
Wind from NW

NW 6 mph
Precip: 2%

7:00pm

Partly Cloudy

70°F
Dew Pt 45°F
Wind from NW

NW 6 mph
Precip: 1%

8:00pm

Partly Cloudy

68°F
Dew Pt 46°F
Wind from NW

NW 5 mph
Precip: 2%

9:00pm

Partly Cloudy

63°F
Dew Pt 45°F
Wind from NW

NW 5 mph
Precip: 2%

10:00pm

Mostly Clear

61°F
Dew Pt 45°F
Wind from NW

NW 5 mph
Precip: 3%

11:00pm

Mostly Clear

59°F
Dew Pt 45°F
Wind from NW

NW 5 mph
Precip: 2%

Wed
12:00am

Partly Cloudy

57°F
Dew Pt 44°F
Wind from NW

NW 5 mph
Precip: 2%

Wed
1:00am

Mostly Clear

56°F
Dew Pt 44°F
Wind from NW

NW 3 mph
Precip: 2%

Wed
2:00am

Partly Cloudy

54°F
Dew Pt 44°F
Wind from NW

NW 3 mph
Precip: 0%

Wed
3:00am

Mostly Clear

54°F
Dew Pt 43°F
Wind from NW

NW 3 mph
Precip: 0%

Wed
4:00am

Mostly Clear

53°F
Dew Pt 43°F
Wind from NW

NW 3 mph
Precip: 0%

Wed
5:00am

Mostly Clear

52°F
Dew Pt 42°F
Wind from NW

NW 3 mph
Precip: 0%

Wed
6:00am

Sunny

53°F
Dew Pt 43°F
Wind from NW

NW 3 mph
Precip: 0%

Wed
7:00am

Sunny

55°F
Dew Pt 45°F
Wind from N

N 3 mph
Precip: 0%

Wed
8:00am

Sunny

58°F
Dew Pt 47°F
Wind from N

N 2 mph
Precip: 0%

Wed
9:00am

Sunny

65°F
Dew Pt 47°F
Wind from N

N 2 mph
Precip: 0%

Wed
10:00am

Sunny

69°F
Dew Pt 46°F
Wind from NW

NW 3 mph
Precip: 0%

Wed
11:00am

Sunny

72°F
Dew Pt 46°F
Wind from NW

NW 3 mph
Precip: 0%

Wed
12:00pm

Sunny

74°F
Dew Pt 46°F
Wind from NW

NW 3 mph
Precip: 0%

Wed
1:00pm

Sunny

75°F
Dew Pt 47°F
Wind from NW

NW 5 mph
Precip: 0%

Wed
2:00pm

Sunny

77°F
Dew Pt 47°F
Wind from NW

NW 5 mph
Precip: 0%

Wed
3:00pm

Sunny

77°F
Dew Pt 48°F
Wind from NW

NW 6 mph
Precip: 0%

Wed
4:00pm

Sunny

77°F
Dew Pt 48°F
Wind from W

W 6 mph
Precip: 0%

Wed
5:00pm

Sunny

78°F
Dew Pt 47°F
Wind from SW

SW 7 mph
Precip: 0%

Wed
6:00pm

Clear

76°F
Dew Pt 48°F
Wind from S

S 6 mph
Precip: 0%

Wed
7:00pm

Clear

74°F
Dew Pt 49°F
Wind from S

S 6 mph
Precip: 0%

Wed
8:00pm

Clear

71°F
Dew Pt 49°F
Wind from S

S 6 mph
Precip: 0%

Wed
9:00pm

Clear

66°F
Dew Pt 49°F
Wind from S

S 6 mph
Precip: 0%

Wed
10:00pm

Clear

64°F
Dew Pt 48°F
Wind from S

S 6 mph
Precip: 0%

Wed
11:00pm

Clear

63°F
Dew Pt 47°F
Wind from SW

SW 6 mph
Precip: 0%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 021117
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
717 AM EDT Tue Jun 2 2026

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

&&

.KEY MESSAGES...

- Quiet and dry stretch of weather today through the end of the
  work week.

- Potentially unsettled and cooler conditions this weekend into
  early next week.

&&

.DISCUSSION...
KEY MESSAGE 1...Quiet and dry stretch of weather today through the 
end of the work week.

Fairly high confidence in dry weather this week as surface high 
pressure and mid-level ridging develop across the Northeast. Right 
on cue following a cool and damp weekend, warmer and drier weather 
returns to southern New England. There have not been any wholesale 
changes to the forecast, as we continue to anticipate a period of 
dry and warmer weather today through the end of the work week. 

Today, the mid-level trough and shortwave push east. While PWATs are 
quite low, the combination of modest mid-level lift, a cold pool 
aloft, and a few hundred J/kg of CAPE suggests a brief and very 
isolated pop-up shower cannot be ruled out. Otherwise, expect 
diurnal cloud development this afternoon due to daytime heating and 
deep boundary layer mixing. With 850 mb temperatures around +8C, 
highs should reach the lower to middle 70s. 

Mid-level ridging and surface high pressure develop Wednesday 
through Friday, with increasing 850 mb temperatures between +13C and 
+15C Thursday and Friday. While these temperatures alone would 
support highs in the lower to middle 80s, west-northwest flow aloft 
descending from the higher terrain of western Massachusetts should 
promote compressional warming/downsloping. This will likely nudge 
highs into the upper 80s, perhaps near 90 degrees, especially Friday 
afternoon across the Connecticut River Valley, where probabilities 
exceed 75 percent.

KEY MESSAGE 2...Potentially unsettled and cooler conditions this 
weekend into early next week.

Looking toward the weekend, forecast confidence lowers due to 
variability among guidance. The broad thinking remains that surface 
high pressure shifts offshore, mid-level heights fall, and cooler 
temperatures advect aloft.

As noted by a previous forecaster, there is a chance much of 
Saturday remains dry. However, there are enough signals to warrant 
at least a mention of scattered afternoon showers. By Sunday, a low 
pressure system passing near a nearly stalled frontal boundary 
presents a more favorable setup for showers. This front could linger 
into early next week, continuing at least some risk for showers.

This will clearly be something to watch, as we appear to remain in 
an unfortunate pattern of cooler and soggier weekends across the 
Northeast. Temperatures should begin trending cooler Saturday, 
though the cooldown is expected to become more noticeable Sunday 
into early next week.

&&

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

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

12z TAF Update:

Today through Wednesday...High confidence.

VFR. A low chance for a brief (less than 20 percent), isolated 
shower mainly between 19z-01z, otherwise, dry conditions today 
through Wednesday. Winds today are from the northwest at 8 to 12
knots for interior locations, while coastal sites experience an
onshore wind from the south to southeast. Overnight, light to 
calm winds prevail, followed by light northwest winds across 
interior locations as high pressure settles into the region on 
Wednesday. Coastal locations will have a light onshore wind.

KBOS...High confidence in TAF.

VFR through the TAF period. A sea breeze develops between 15-17z, 
followed by light winds overnight and then a weak sea breeze on 
Wednesday.

KBDL...High confidence in TAF.

VFR with northwest winds today and Wednesday, with light to calm 
winds overnight.

Outlook /Wednesday Night through Saturday/...

Wednesday Night: VFR. 

Thursday: VFR. Breezy. 

Thursday Night: VFR. 

Friday: VFR. Breezy. 

Friday Night: VFR. 

Saturday: VFR. Chance SHRA, slight chance TSRA.

&&

.MARINE...
Forecaster Confidence Levels...

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

Today through Wednesday...High confidence.

In general, conditions today through Wednesday will support 
tranquil boating conditions as surface high pressure remains the
dominant feature. Dry weather prevails as well, though there is
a very low chance of a pop-up shower mainly this afternoon into
the early evening (less than 20 percent), otherwise, dry 
conditions persist into Wednesday. Winds today are generally 
from the south to south-southwest at 10 to 15 knots, becoming 
light and somewhat variable on Wednesday as high pressure 
settles over the region. However, colder sea surface 
temperatures relative to warmer land temperatures will promote 
onshore winds across waters near the immediate coast. Seas 
generally 2 to 4 feet today, subsiding to 1 to 3 feet on 
Wednesday.

Outlook /Wednesday Night through Saturday/...

Wednesday Night: Winds less than 25 kt. 

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

Thursday Night through Friday Night: Winds less than 25 kt.
Seas up to 5 ft. 

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

&&

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

&&

$$

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

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