Lexington Weather

Current Conditions [‒] Current Conditions [+]

44.4°F Colder than last hour.

6.9°C

Chilly

Clear

Overnight: Lo 32 °F

Monday: Hi 68 °F

Dew Point: 35.2°F Decreased 0.6°F since last hour.

Humidity: 70% Increased 1.0% since last hour.

Air Quality Index: 28

Good

(Fine Particles)

Barometer: 30.22 in Falling 0.03 inHg/hr

1023 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 -
Overnight, Monday, & Monday Night through Sunday

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Mon Oct 26, 2026 1:40am EDT

Overview:

- Prolonged stretch of dry weather across southern New England, likely lasting through Halloween, with a potential transition toward unsettled weather in early November. Mild temperatures today, followed by a brief cooldown Tuesday and Wednesday before warmer weather returns late in the week. Temperatures trend closer to seasonable levels over the weekend.

Overnight:

Patchy Frost

Lo 32 °F

Patchy frost after 4am. Clear, with a low around 32. West wind around 6 mph.

Monday:

Patchy Frost then Sunny

Hi 68 °F

Patchy frost before 9am. Sunny, with a high near 68. West wind around 7 mph.

Monday Night:

Mostly Cloudy

Lo 41 °F

Mostly cloudy, with a low around 41. Northwest wind 6 to 9 mph.

Tuesday:

Sunny

Hi 55 °F

Sunny, with a high near 55. North wind 3 to 8 mph.

Tuesday Night:

Widespread Frost

Lo 27 °F

Widespread frost after 11pm. Clear, with a low around 27. Northwest wind around 3 mph.

Wednesday:

Widespread Frost then Sunny

Hi 58 °F

Widespread frost before 10am. Sunny, with a high near 58. West wind around 3 mph.

Wednesday Night:

Mostly Clear

Lo 41 °F

Mostly clear, with a low around 41. Southwest wind around 5 mph.

Thursday:

Sunny

Hi 67 °F

Sunny, with a high near 67. Southwest wind 5 to 9 mph.

Thursday Night:

Mostly Clear

Lo 50 °F

Mostly clear, with a low around 50. Southwest wind around 7 mph.

Friday:

Sunny

Hi 72 °F

Sunny, with a high near 72. West wind 6 to 9 mph.

Friday Night:

Mostly Clear

Lo 46 °F

Mostly clear, with a low around 46. Northwest wind around 5 mph.

Saturday:

Mostly Sunny

Hi 63 °F

Mostly sunny, with a high near 63. Northwest wind around 5 mph.

Saturday Night:

Partly Cloudy

Lo 46 °F

Partly cloudy, with a low around 46. Southwest wind around 5 mph.

Sunday:

Mostly Sunny

Hi 65 °F

Mostly sunny, with a high near 65. Southwest wind 5 to 8 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 3am through Tue 2pm

Issued by:
National Weather Service Boston / Norton, MA
Updated Mon Oct 26, 2026 1:40am EDT

3:00am

Clear

37°F
Dew Pt 26°F
Wind Chill: 32°F
Wind from W

W 6 mph
Precip: 0%

4:00am

Patchy Frost

36°F
Dew Pt 26°F
Wind Chill: 31°F
Wind from W

W 6 mph
Precip: 0%

5:00am

Patchy Frost

35°F
Dew Pt 26°F
Wind Chill: 31°F
Wind from W

W 5 mph
Precip: 0%

6:00am

Patchy Frost

35°F
Dew Pt 27°F
Wind Chill: 31°F
Wind from W

W 5 mph
Precip: 0%

7:00am

Patchy Frost

35°F
Dew Pt 29°F
Wind Chill: 31°F
Wind from W

W 5 mph
Precip: 0%

8:00am

Patchy Frost

34°F
Dew Pt 30°F
Wind Chill: 30°F
Wind from W

W 5 mph
Precip: 0%

9:00am

Sunny

40°F
Dew Pt 32°F
Wind Chill: 36°F
Wind from W

W 6 mph
Precip: 0%

10:00am

Sunny

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

W 6 mph
Precip: 0%

11:00am

Mostly Sunny

55°F
Dew Pt 38°F
Wind from W

W 6 mph
Precip: 0%

12:00pm

Sunny

58°F
Dew Pt 38°F
Wind from W

W 6 mph
Precip: 0%

1:00pm

Sunny

63°F
Dew Pt 39°F
Wind from W

W 7 mph
Precip: 1%

2:00pm

Sunny

66°F
Dew Pt 40°F
Wind from W

W 7 mph
Precip: 1%

3:00pm

Mostly Sunny

66°F
Dew Pt 41°F
Wind from W

W 7 mph
Precip: 1%

4:00pm

Mostly Sunny

66°F
Dew Pt 42°F
Wind from W

W 7 mph
Precip: 2%

5:00pm

Partly Sunny

64°F
Dew Pt 43°F
Wind from W

W 7 mph
Precip: 2%

6:00pm

Mostly Cloudy

61°F
Dew Pt 45°F
Wind from W

W 6 mph
Precip: 2%

7:00pm

Mostly Cloudy

58°F
Dew Pt 46°F
Wind from NW

NW 6 mph
Precip: 3%

8:00pm

Mostly Cloudy

57°F
Dew Pt 47°F
Wind from NW

NW 6 mph
Precip: 3%

9:00pm

Mostly Cloudy

55°F
Dew Pt 47°F
Wind from NW

NW 6 mph
Precip: 3%

10:00pm

Mostly Cloudy

54°F
Dew Pt 47°F
Wind from NW

NW 7 mph
Precip: 3%

11:00pm

Mostly Cloudy

53°F
Dew Pt 46°F
Wind from N

N 7 mph
Precip: 4%

Tue
12:00am

Mostly Cloudy

51°F
Dew Pt 45°F
Wind from N

N 8 mph
Precip: 3%

Tue
1:00am

Mostly Cloudy

51°F
Dew Pt 44°F
Wind from N

N 8 mph
Precip: 2%

Tue
2:00am

Partly Cloudy

50°F
Dew Pt 42°F
Wind Chill: 46°F
Wind from N

N 9 mph
Precip: 1%

Tue
3:00am

Partly Cloudy

48°F
Dew Pt 41°F
Wind Chill: 44°F
Wind from N

N 8 mph
Precip: 1%

Tue
4:00am

Partly Cloudy

47°F
Dew Pt 39°F
Wind Chill: 43°F
Wind from N

N 8 mph
Precip: 0%

Tue
5:00am

Partly Cloudy

44°F
Dew Pt 37°F
Wind Chill: 39°F
Wind from N

N 8 mph
Precip: 0%

Tue
6:00am

Sunny

42°F
Dew Pt 36°F
Wind Chill: 37°F
Wind from N

N 8 mph
Precip: 0%

Tue
7:00am

Sunny

42°F
Dew Pt 34°F
Wind Chill: 37°F
Wind from N

N 8 mph
Precip: 0%

Tue
8:00am

Sunny

41°F
Dew Pt 33°F
Wind Chill: 36°F
Wind from N

N 7 mph
Precip: 0%

Tue
9:00am

Sunny

43°F
Dew Pt 34°F
Wind Chill: 38°F
Wind from N

N 8 mph
Precip: 0%

Tue
10:00am

Sunny

46°F
Dew Pt 33°F
Wind Chill: 42°F
Wind from N

N 8 mph
Precip: 0%

Tue
11:00am

Sunny

49°F
Dew Pt 32°F
Wind Chill: 46°F
Wind from N

N 8 mph
Precip: 0%

Tue
12:00pm

Sunny

51°F
Dew Pt 31°F
Wind from N

N 7 mph
Precip: 0%

Tue
1:00pm

Sunny

53°F
Dew Pt 30°F
Wind from N

N 6 mph
Precip: 0%

Tue
2:00pm

Sunny

53°F
Dew Pt 29°F
Wind from N

N 6 mph
Precip: 0%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 260542
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
142 AM EDT Mon Oct 26 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,
  likely lasting through Halloween, with a potential transition
  toward unsettled weather in early November. Mild temperatures
  today, followed by a brief cooldown Tuesday and Wednesday
  before warmer weather returns late in the week. Temperatures
  trend closer to seasonable levels over the weekend.

&&

.DISCUSSION...
KEY MESSAGE 1...Prolonged stretch of dry weather across southern New 
England, likely lasting through Halloween, with a potential 
transition toward unsettled weather in early November. Mild 
temperatures today, followed by a brief cooldown Tuesday and 
Wednesday before warmer weather returns late in the week. 
Temperatures trend closer to seasonable levels over the weekend.

Nearly picture-perfect fall weather continues for the upcoming week 
across southern New England. Once again, the broken record is 
playing track one, titled "High Pressure." 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 All Hallows' Eve!

An expansive area of surface high pressure, around 1030 mb, 
continues to dominate the regional weather pattern, although its 
center has shifted slightly farther south toward the Mid-Atlantic 
compared to 24 hours ago. Nevertheless, this will promote plenty of 
sunshine, light winds, and generally quiet conditions. Two cold 
fronts will pass through the region this week, albeit moisture-
starved cold fronts. The first arrives tonight into early Tuesday, 
followed by a second Friday night into Saturday morning. However, 
persistent high pressure and dry air will likely limit these fronts 
to little more than some additional cloud cover, breezy conditions, 
and cooler air masses. The next opportunity for precipitation may 
arrive Sunday or Monday of next week, as global guidance hints at a 
transition toward a more active weather pattern during the first 
week of November.

In terms of temperatures, 925 mb temperatures warm to +14C today, 
supporting highs in the middle 60s to near 70F this afternoon. In 
the wake of the first moisture-starved cold front, Tuesday will be 
noticeably cooler, with 925 mb temperatures +1C to +4C. This should 
support afternoon temperatures roughly 10 to 15 degrees cooler than 
today, with highs in the lower to middle 50s.

Starting Wednesday, warm air advection aloft leads to a steady 
increase in temperatures through the remainder of the week, with 
Wednesday afternoon a few degrees warmer than Tuesday. Thursday and 
Friday look fairly mild considering the time of year, with highs 
returning to the middle 60s Thursday and upper 60s to potentially 
the lower 70s Friday! DESI probabilities of highs reaching 70F or 
greater Friday have increased significantly over the past 24 hours, 
from 30 to 50 percent yesterday to generally 60 to 80 percent or 
higher today, with lower probabilities along the coast and across 
higher terrain. Unfortunately, this warmth will be short-lived, as 
the second moisture-starved cold front passes through Friday night 
into Saturday morning, knocking temperatures back by around 10 
degrees. This should bring highs back into the upper 50s to lower 
60s over the weekend.

After a frosty weekend, overnight temperatures should trend closer 
to seasonable levels, generally in the upper 30s and 40s through 
much of the week. One exception may be Wednesday morning, when a 
cooler post-frontal air mass, combined with light winds and mainly 
clear skies, could allow for efficient radiational cooling and 
temperatures to fall back into the 20s and lower 30s. However, urban 
areas such as Boston will likely remain above freezing, with lows in 
the middle to upper 30s. Confidence in the colder temperatures 
Wednesday morning remains moderate given uncertainty regarding how 
effectively winds decouple overnight, which could limit radiational 
cooling. Be sure to protect those mums and Halloween pumpkins!

&&

.AVIATION /06Z MONDAY THROUGH FRIDAY/...
Forecaster Confidence Levels...

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

06Z TAF Update:

Today through Tuesday...High confidence.

VFR conditions prevail through the period. Clear skies today with W 
winds of 6 to 12 kt. Across Cape Cod and the Islands, gusts of 17 to 
20 kt are possible beginning this afternoon. A moisture-starved cold 
front brings additional cloud cover tonight, with ceilings 
potentially lowering to 5-8 kft between 21Z and 09Z. During the 
frontal passage, winds shift from W to NNW/N, with speeds increasing 
to 8 to 14 kt. Gusts of 20 to 25 kt are possible across coastal 
areas, Cape Cod, and the Islands. Winds gradually subside after 18Z 
Tuesday, becoming light northerly and potentially calm Tuesday 
night. VFR conditions continue.

KBOS Terminal...High confidence.

KBDL Terminal...High confidence.

Outlook /Tuesday Night through Friday/...

Tuesday Night: VFR. Widespread frost.

Wednesday through Wednesday Night: VFR. 

Thursday: VFR. Breezy. 

Thursday Night: VFR. 

Friday: VFR. Breezy. 

&&

.MARINE...
Forecaster Confidence Levels...

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

Through Tuesday...High confidence.

A broad area of high pressure situated south of New England across 
the Mid-Atlantic region brings dry weather and generally favorable 
marine conditions today. W winds of 10 to 15 kt are expected before 
a moisture-starved cold front brings a wind shift to the N 
overnight. Cold air advection over the waters will allow gusts to 
increase to 25 kt or greater across the eastern and southeastern 
waters late tonight into early Tuesday. Seas also briefly build to 3 
to 5 ft across the outer waters tonight into Tuesday. As a result, 
Small Craft Advisories remain in effect tonight into Tuesday for the 
aforementioned waters.

Outlook /Tuesday Night through Friday/...

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

Wednesday through Thursday: Winds less than 25 kt. 

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

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory from 2 AM to 11 AM EDT Tuesday for ANZ231-
     232-250-251-254-255.

&&

$$
Dooley

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