Lexington Weather

Current Conditions [‒] Current Conditions [+]

54.3°F Colder than last hour.

12.4°C

Cool

Clear

Tonight: Lo 42 °F

Tuesday: Hi 58 °F

Dew Point: 40.8°F Decreased 1.6°F since last hour.

Humidity: 60% Increased 1.0% since last hour.

Air Quality Index: 23

Good

(Ozone)

Barometer: 29.88 in Rising 0.02 inHg/hr

1012 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.00 in

Rain Sunday: 0.00 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: Calm

Gusts: 0 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

NWS Weather Forecast -
Tonight, Tuesday, & Tuesday Night through Columbus Day

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Mon Oct 5, 2026 7:20pm EDT

Overview:

- Mostly dry with continued fall temperatures. An early look at the holiday weekend favors dry weather, though late Sunday into Monday bears watching for rain.

Tonight:

Clear

Lo 42 °F

Clear, with a low around 42. West wind 8 to 12 mph, with gusts as high as 25 mph.

Tuesday:

Sunny

Hi 58 °F

Sunny, with a high near 58. West wind 9 to 13 mph, with gusts as high as 24 mph.

Tuesday Night:

Clear then Patchy Frost

Lo 35 °F

Patchy frost after 5am. Clear, with a low around 35. West wind 3 to 8 mph.

Wednesday:

Patchy Frost then Sunny

Hi 65 °F

Patchy frost before 8am. Sunny, with a high near 65. Southwest wind 3 to 10 mph.

Wednesday Night:

Mostly Clear

Lo 54 °F

Mostly clear, with a low around 54. Southwest wind around 9 mph.

Thursday:

Sunny

Hi 72 °F

Sunny, with a high near 72. Southwest wind around 10 mph, with gusts as high as 21 mph.

Thursday Night:

Mostly Clear

Lo 49 °F

Mostly clear, with a low around 49. West wind around 7 mph.

Friday:

Sunny

Hi 67 °F

Sunny, with a high near 67. West wind 6 to 9 mph.

Friday Night:

Mostly Clear

Lo 47 °F

Mostly clear, with a low around 47. West wind around 7 mph.

Saturday:

Sunny

Hi 64 °F

Sunny, with a high near 64. Northwest wind 6 to 9 mph.

Saturday Night:

Mostly Clear

Lo 44 °F

Mostly clear, with a low around 44. West wind 2 to 6 mph.

Sunday:

Sunny

Hi 65 °F

Sunny, with a high near 65. Southwest wind 3 to 9 mph.

Sunday Night:

Mostly Cloudy

Lo 51 °F

Mostly cloudy, with a low around 51. Southwest wind around 9 mph.

Columbus Day:

Partly Sunny then Slight Chance Rain Showers

Hi 68 °F

A slight chance of rain showers after 3pm. Partly sunny, with a high near 68. Southwest wind around 10 mph.

FULL FORECAST

NWS Hourly Forecast -
Tonight 9pm through Wed 8am

Issued by:
National Weather Service Boston / Norton, MA
Updated Mon Oct 5, 2026 7:20pm EDT

9:00pm

Clear

54°F
Dew Pt 37°F
Wind from W

W 9 mph
Precip: 0%

10:00pm

Clear

52°F
Dew Pt 37°F
Wind from W

W 8 mph
Precip: 0%

11:00pm

Clear

50°F
Dew Pt 37°F
Wind Chill: 47°F
Wind from NW

NW 8 mph
Precip: 0%

Tue
12:00am

Clear

49°F
Dew Pt 36°F
Wind Chill: 46°F
Wind from NW

NW 8 mph
Precip: 0%

Tue
1:00am

Clear

48°F
Dew Pt 36°F
Wind Chill: 44°F
Wind from W

W 8 mph
Precip: 0%

Tue
2:00am

Clear

47°F
Dew Pt 35°F
Wind Chill: 43°F
Wind from W

W 8 mph
Precip: 0%

Tue
3:00am

Clear

47°F
Dew Pt 35°F
Wind Chill: 43°F
Wind from W

W 8 mph
Precip: 0%

Tue
4:00am

Clear

45°F
Dew Pt 34°F
Wind Chill: 41°F
Wind from W

W 8 mph
Precip: 0%

Tue
5:00am

Clear

44°F
Dew Pt 34°F
Wind Chill: 39°F
Wind from W

W 9 mph
Precip: 0%

Tue
6:00am

Sunny

43°F
Dew Pt 33°F
Wind Chill: 38°F
Wind from W

W 9 mph
Precip: 0%

Tue
7:00am

Sunny

42°F
Dew Pt 32°F
Wind Chill: 36°F
Wind from W

W 9 mph
Precip: 0%

Tue
8:00am

Sunny

43°F
Dew Pt 33°F
Wind Chill: 37°F
Wind from W

W 10 mph
Precip: 0%

Tue
9:00am

Sunny

46°F
Dew Pt 34°F
Wind Chill: 41°F
Wind from NW

NW 12 mph
Precip: 0%

Tue
10:00am

Sunny

48°F
Dew Pt 34°F
Wind Chill: 43°F
Wind from NW

NW 13 mph
Precip: 0%

Tue
11:00am

Sunny

52°F
Dew Pt 34°F
Wind from NW

NW 13 mph
Precip: 0%

Tue
12:00pm

Sunny

54°F
Dew Pt 35°F
Wind from NW

NW 13 mph
Precip: 0%

Tue
1:00pm

Sunny

56°F
Dew Pt 35°F
Wind from NW

NW 13 mph
Precip: 0%

Tue
2:00pm

Sunny

58°F
Dew Pt 35°F
Wind from NW

NW 13 mph
Precip: 0%

Tue
3:00pm

Sunny

58°F
Dew Pt 35°F
Wind from NW

NW 12 mph
Precip: 0%

Tue
4:00pm

Sunny

58°F
Dew Pt 35°F
Wind from NW

NW 12 mph
Precip: 0%

Tue
5:00pm

Sunny

57°F
Dew Pt 35°F
Wind from NW

NW 10 mph
Precip: 0%

Tue
6:00pm

Clear

54°F
Dew Pt 35°F
Wind from W

W 8 mph
Precip: 0%

Tue
7:00pm

Clear

50°F
Dew Pt 35°F
Wind Chill: 47°F
Wind from W

W 8 mph
Precip: 0%

Tue
8:00pm

Clear

48°F
Dew Pt 34°F
Wind Chill: 45°F
Wind from W

W 7 mph
Precip: 0%

Tue
9:00pm

Clear

46°F
Dew Pt 34°F
Wind Chill: 42°F
Wind from W

W 7 mph
Precip: 0%

Tue
10:00pm

Clear

45°F
Dew Pt 34°F
Wind Chill: 42°F
Wind from W

W 6 mph
Precip: 0%

Tue
11:00pm

Clear

43°F
Dew Pt 33°F
Wind Chill: 40°F
Wind from W

W 5 mph
Precip: 0%

Wed
12:00am

Clear

42°F
Dew Pt 33°F
Wind Chill: 39°F
Wind from W

W 5 mph
Precip: 0%

Wed
1:00am

Clear

41°F
Dew Pt 33°F
Wind Chill: 38°F
Wind from W

W 5 mph
Precip: 0%

Wed
2:00am

Clear

40°F
Dew Pt 33°F
Wind Chill: 37°F
Wind from W

W 5 mph
Precip: 0%

Wed
3:00am

Clear

39°F
Dew Pt 33°F
Wind Chill: 36°F
Wind from W

W 5 mph
Precip: 0%

Wed
4:00am

Clear

37°F
Dew Pt 33°F
Wind Chill: 33°F
Wind from W

W 5 mph
Precip: 0%

Wed
5:00am

Patchy Frost

36°F
Dew Pt 33°F
Wind Chill: 33°F
Wind from SW

SW 3 mph
Precip: 0%

Wed
6:00am

Patchy Frost

36°F
Dew Pt 33°F
Wind Chill: 32°F
Wind from SW

SW 5 mph
Precip: 0%

Wed
7:00am

Patchy Frost

36°F
Dew Pt 33°F
Wind Chill: 33°F
Wind from SW

SW 3 mph
Precip: 0%

Wed
8:00am

Sunny

38°F
Dew Pt 35°F
Wind Chill: 36°F
Wind from SW

SW 3 mph
Precip: 0%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 052335
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
735 PM EDT Mon Oct 5 2026

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

&&

.KEY MESSAGES...

- Mostly dry with continued fall temperatures. An early look at
  the holiday weekend favors dry weather, though late Sunday
  into Monday bears watching for rain.

&&

.DISCUSSION...
KEY MESSAGE 1...Mostly dry with continued fall temperatures. An
early look at the holiday weekend favors dry weather, though 
late Sunday into Monday bears watching for rain.

Turning cooler tonight into Tuesday night, with below normal 
temperatures expected. Patchy frost will be possible tonight 
towards sheltered areas of the east slopes of the Berkshires. 
Winds will be too high to permit much frost. This should not be 
the case for Tuesday night. Thinking more widespread 
opportunities for frost across the normally colder locations of 
MA and northern CT. 

A quiet stretch of fall weather is expected Wednesday and beyond
as as high pressure remains the dominant feature. A vertically 
stacked low near Hudson Bay will send a few subtle shortwaves 
through New England Thursday and Friday. Limited moisture should
preclude significant rainfall, though a spot shower cannot be 
ruled out. Otherwise, dry weather prevails through the start of 
the holiday weekend. Forecast uncertainty increases late Sunday 
into Columbus Day and will depend largely on potential tropical 
development over the Bay of Campeche. The NHC currently gives 
AL92 an 80 percent chance of formation over the next 7 days. 
Some guidance brings remnant tropical moisture north into 
southern New England, while other solutions keep it suppressed 
to our south. Plenty of time to watch trends, with no reason to 
alter outdoor plans at this point. Temperatures remain fall-like
with highs mainly in the lower to middle 60s, except upper 60s 
to lower 70s Thursday. Overnight lows are mostly in the upper 
40s and 50s, though cooler upper 30s to middle 40s are possible 
Saturday night.

&&

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

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

00z TAF Update...

Through Tuesday Night...High confidence.

VFR with gusty W winds into tonight. Gusty winds with more of a
NW turn Tuesday. Gusty winds subside towards Tuesday night.

KBOS Terminal...High confidence in TAF 

KBDL Terminal...High confidence in TAF.

Outlook /Wednesday through Saturday/...

Wednesday through Thursday: VFR. Breezy. 

Thursday Night through Saturday: VFR.

&&

.MARINE...
Forecaster Confidence Levels...

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

Through Tuesday Night...High confidence.

Gust W-WNW wind and agitated seas in the wake of a cold front,
thus Small Craft Advisories for all waters. 

High pressure then moves from the central Appalachians to the 
Mid Atlantic coast Tuesday. Seas and winds begin to diminish 
late tonight into Tuesday.

Outlook /Wednesday through Saturday/...

Wednesday: Winds less than 25 kt. 

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

Thursday Night: Winds less than 25 kt. Areas of seas
approaching 5 ft. 

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

Friday Night through Saturday: Winds less than 25 kt.

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until midnight EDT tonight for ANZ230-236.
     Small Craft Advisory until 8 AM EDT Tuesday for ANZ231>235-237-
     251.
     Small Craft Advisory until 1 PM EDT Tuesday for ANZ250-254>256.

&&

$$

DISCUSSION...Belk/Dooley
AVIATION...Belk/Dooley
MARINE...Belk/Dooley

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