Lexington Weather

Current Conditions [‒] Current Conditions [+]

36.3°F Colder than last hour.

2.4°C

Chilly

Clear

Overnight: Lo 30 °F

Saturday: Hi 60 °F

Dew Point: 32.2°F Decreased 1.4°F since last hour.

Humidity: 85% Increased 1.0% since last hour.

Air Quality Index: 31

Good

(Fine Particles)

Barometer: 30.43 in S

1030 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

REGIONAL CONDITIONS

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

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Sat Oct 24, 2026 2:29am EDT

Overview:

- Prolonged stretch of dry weather across southern New England. Moderating afternoon temperatures this weekend, though chilly mornings will bring widespread frost away from the immediate coast.

Overnight:

Patchy Frost

Lo 30 °F

Patchy frost. Mostly clear, with a low around 30. Northwest wind around 3 mph.

Saturday:

Patchy Frost then Sunny

Hi 60 °F

Patchy frost before 9am. Sunny, with a high near 60. Northwest wind around 3 mph.

Saturday Night:

Clear then Patchy Frost

Lo 32 °F

Patchy frost after 4am. Clear, with a low around 32. Southwest wind around 2 mph.

Sunday:

Patchy Frost then Sunny

Hi 65 °F

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

Sunday Night:

Clear

Lo 35 °F

Clear, with a low around 35. Southwest wind around 5 mph.

Monday:

Sunny

Hi 69 °F

Sunny, with a high near 69. West wind around 6 mph.

Monday Night:

Mostly Clear

Lo 40 °F

Mostly clear, with a low around 40. Northwest wind around 7 mph.

Tuesday:

Sunny

Hi 54 °F

Sunny, with a high near 54. North wind 3 to 7 mph.

Tuesday Night:

Mostly Clear

Lo 30 °F

Mostly clear, with a low around 30. North wind around 3 mph.

Wednesday:

Sunny

Hi 54 °F

Sunny, with a high near 54. Northeast wind around 3 mph.

Wednesday Night:

Mostly Clear

Lo 35 °F

Mostly clear, with a low around 35. South wind around 3 mph.

Thursday:

Mostly Sunny

Hi 63 °F

Mostly sunny, with a high near 63. Southwest wind 3 to 9 mph.

Thursday Night:

Mostly Clear

Lo 47 °F

Mostly clear, with a low around 47. Southwest wind around 8 mph.

Friday:

Sunny

Hi 66 °F

Sunny, with a high near 66. West wind around 9 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 3am through Sun 2pm

Issued by:
National Weather Service Boston / Norton, MA
Updated Sat Oct 24, 2026 2:29am EDT

3:00am

Patchy Frost

35°F
Dew Pt 27°F
Wind Chill: 32°F
Wind from NW

NW 3 mph
Precip: 0%

4:00am

Patchy Frost

34°F
Dew Pt 27°F
Wind from NW

NW 2 mph
Precip: 0%

5:00am

Patchy Frost

34°F
Dew Pt 26°F
Wind Chill: 31°F
Wind from NW

NW 3 mph
Precip: 0%

6:00am

Patchy Frost

33°F
Dew Pt 26°F
Wind from NW

NW 2 mph
Precip: 0%

7:00am

Patchy Frost

33°F
Dew Pt 26°F
Wind from NW

NW 2 mph
Precip: 0%

8:00am

Patchy Frost

35°F
Dew Pt 26°F
Wind Chill: 32°F
Wind from NW

NW 3 mph
Precip: 0%

9:00am

Mostly Sunny

39°F
Dew Pt 27°F
Wind from N

N 2 mph
Precip: 0%

10:00am

Sunny

45°F
Dew Pt 28°F
Wind from N

N 2 mph
Precip: 0%

11:00am

Sunny

50°F
Dew Pt 29°F
Wind from NW

NW 2 mph
Precip: 0%

12:00pm

Sunny

54°F
Dew Pt 29°F
Wind from NW

NW 2 mph
Precip: 0%

1:00pm

Sunny

56°F
Dew Pt 28°F
Wind from NW

NW 3 mph
Precip: 0%

2:00pm

Sunny

58°F
Dew Pt 28°F
Wind from NW

NW 3 mph
Precip: 0%

3:00pm

Sunny

59°F
Dew Pt 28°F
Wind from NW

NW 2 mph
Precip: 0%

4:00pm

Sunny

60°F
Dew Pt 27°F
Wind from W

W 2 mph
Precip: 0%

5:00pm

Sunny

58°F
Dew Pt 27°F
Wind from SW

SW 1 mph
Precip: 0%

6:00pm

Clear

54°F
Dew Pt 27°F
Wind from S

S 1 mph
Precip: 0%

7:00pm

Clear

50°F
Dew Pt 26°F
Wind from S

S 2 mph
Precip: 0%

8:00pm

Clear

46°F
Dew Pt 26°F
Wind from S

S 2 mph
Precip: 0%

9:00pm

Clear

43°F
Dew Pt 27°F
Wind from SW

SW 2 mph
Precip: 0%

10:00pm

Clear

42°F
Dew Pt 28°F
Wind from W

W 2 mph
Precip: 0%

11:00pm

Clear

42°F
Dew Pt 29°F
Wind from W

W 2 mph
Precip: 0%

Sun
12:00am

Clear

41°F
Dew Pt 29°F
Wind from W

W 2 mph
Precip: 0%

Sun
1:00am

Clear

39°F
Dew Pt 29°F
Wind from W

W 2 mph
Precip: 0%

Sun
2:00am

Clear

38°F
Dew Pt 29°F
Wind from W

W 2 mph
Precip: 0%

Sun
3:00am

Clear

37°F
Dew Pt 29°F
Wind from W

W 2 mph
Precip: 0%

Sun
4:00am

Patchy Frost

36°F
Dew Pt 28°F
Wind from NW

NW 2 mph
Precip: 0%

Sun
5:00am

Patchy Frost

35°F
Dew Pt 28°F
Wind from W

W 2 mph
Precip: 0%

Sun
6:00am

Patchy Frost

34°F
Dew Pt 28°F
Wind from NW

NW 2 mph
Precip: 0%

Sun
7:00am

Patchy Frost

34°F
Dew Pt 27°F
Wind from W

W 2 mph
Precip: 0%

Sun
8:00am

Sunny

37°F
Dew Pt 27°F
Wind from W

W 2 mph
Precip: 0%

Sun
9:00am

Sunny

41°F
Dew Pt 28°F
Wind from W

W 2 mph
Precip: 0%

Sun
10:00am

Sunny

47°F
Dew Pt 28°F
Wind from W

W 2 mph
Precip: 0%

Sun
11:00am

Sunny

53°F
Dew Pt 29°F
Wind from SW

SW 2 mph
Precip: 0%

Sun
12:00pm

Sunny

58°F
Dew Pt 29°F
Wind from SW

SW 2 mph
Precip: 0%

Sun
1:00pm

Sunny

62°F
Dew Pt 30°F
Wind from SW

SW 3 mph
Precip: 0%

Sun
2:00pm

Sunny

64°F
Dew Pt 30°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 240605
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
205 AM EDT Sat Oct 24 2026

.WHAT HAS CHANGED...
No meaningful changes to the forecast, with an extended stretch of 
quiet and dry weather ahead. 

&&

.KEY MESSAGES...

- Prolonged stretch of dry weather across southern New England.
  Moderating afternoon temperatures this weekend, though chilly
  mornings will bring widespread frost away from the immediate
  coast.

&&

.DISCUSSION...
KEY MESSAGE 1...Prolonged stretch of dry weather across southern New 
England. Moderating afternoon temperatures this weekend, though 
chilly mornings will bring widespread frost away from the immediate 
coast.

If the forecast discussion starts sounding like a broken record over 
the next several days, you can thank strong high pressure for that! 
An extended stretch of dry weather is expected, with some day-to-day 
variability in temperatures, but otherwise not much excitement on 
the horizon. In fact, global ensembles paint a rather parched 
picture for southern New England, with cumulative probabilities of 
measurable precipitation (0.01 inches or greater) generally less 
than 10 percent through much of next week.

An expansive area of surface high pressure, around 1035 mb, remains 
anchored across the region this weekend, with some guidance 
suggesting pressures could approach 1040 mb Saturday night. This 
will promote plenty of sunshine, light winds, and generally quiet 
conditions. Temperatures at 925 mb warm to +6C to +9C this 
afternoon, supporting highs in the upper 50s to lower 60s. If this 
were a few weeks earlier, with a higher sun angle, we'd likely be 
talking about highs in the middle to upper 60s. But here we are, 
nearing the end of October! Temperatures aloft continue to moderate 
Sunday and Monday, with 925 mb temperatures approaching +10C Sunday 
and +13C Monday. This should support highs in the lower to middle 
60s Sunday, with some locations potentially reaching 70F Monday.

Overnight temperatures, however, are a different story. Clear skies 
and light to calm winds beneath strong high pressure will promote 
efficient radiational cooling. Opted to trend overnight lows below 
NBM guidance, which typically runs too warm in these setups. 
Saturday and Sunday mornings, and to some extent Monday morning, 
will be quite cold, with lows in the 20s to lower 30s and widespread 
frost away from the immediate coast and urban heat islands. Be sure 
to protect those mums and Halloween pumpkins! One interesting 
feature of this setup will be the potential for significant 
temperature differences between sheltered valleys and higher 
elevations. With clear skies and light winds promoting strong 
radiational cooling, colder air will settle into the valleys, while 
some elevated locations may remain several degrees warmer within the 
nocturnal temperature inversion.

Looking ahead, a moisture-starved cold front approaches from the 
north-northwest late Monday night into early Tuesday. However, 
persistent high pressure and dry air will likely limit the front to 
little more than some additional cloud cover and a cooler air mass. 
Highs return to the 50s Tuesday and Wednesday before potentially 
rebounding into the 60s Thursday and Friday. Overnight temperatures 
should trend closer to seasonable levels, although confidence is 
lower given uncertainty surrounding cloud cover and winds, both of 
which could limit radiational cooling. Fingers crossed this dry 
pattern holds just a little longer and gives us a dry All Hallows' 
Eve!

&&

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

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

06Z TAF Update:

Today through Sunday...High confidence in flight categories, 
moderate confidence in wind direction and speed.

High pressure brings dry weather and clear skies, with VFR 
conditions prevailing through the period. Wind direction and speed 
are a bit more challenging given the weakly forced environment. 
Winds around 2 kft are generally NW to N near 10 kt, though daytime 
heating and temperature differences between land and water may allow 
a weak sea breeze to develop along the coast. Confidence in sea-
breeze development remains low. Regardless of direction, surface 
winds should remain light, generally 4 to 8 kt. Tonight, winds 
become calm to light and variable, generally less than 3 kt. More of 
the same is expected Sunday, with winds around 2 kft shifting to the 
west at 5 to 10 kt, while surface winds remain light, generally 4 to 
8 kt.

KBOS Terminal...High confidence in flight categories, moderate 
confidence in prevailing winds, but low confidence in sea-breeze 
development.

VFR. Prevailing NW to NNW winds of 4 to 8 kt. High-resolution 
guidance suggests a weak sea breeze may develop 17Z to 21Z, shifting 
winds to ESE around 5 kt. Confidence remains low, so opted to 
include a PROB30 group to account for this possibility.

KBDL Terminal...High confidence in flight categories, moderate 
confidence in wind direction and speed.

VFR. Light winds generally less than 5 kt, with variable directions.

Outlook /Monday through Wednesday/...

Monday: VFR. 

Monday Night through Tuesday: VFR. Breezy. 

Tuesday Night through Wednesday: VFR. 

&&

.MARINE...
Forecaster Confidence Levels...

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

Through Sunday...High confidence.

High pressure remains in control, bringing dry weather and generally 
favorable marine conditions for the next several days. Today, winds 
will be light and generally from the northwest, with gusts at most 8 
to 12 kt, becoming light WSW on Sunday. Despite the lighter winds, 
seas across the outer waters remain elevated at 4 to 6 ft, 
warranting a continuation of Small Craft Advisories through this 
evening for seas rather than winds. Seas subside below 4 ft by 
Sunday. 

Outlook /Monday through Wednesday/...

Monday: Winds less than 25 kt. 

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

Tuesday: Low risk for Small Craft Advisory winds with gusts up
to 20 kt. Seas up to 5 ft. 

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

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

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 8 PM EDT this evening for ANZ250.
     Small Craft Advisory until 6 AM EDT Sunday for ANZ254-255.

&&

$$
Dooley

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