Lexington Weather

Current Conditions [‒] Current Conditions [+]

38.7°F Colder than last hour.

3.7°C

Chilly

Clear

Overnight: Lo 30 °F

Sunday: Hi 65 °F

Dew Point: 36.0°F Decreased 0.1°F since last hour.

Humidity: 90% Increased 1.0% since last hour.

Air Quality Index: 45

Good

(Fine Particles)

Barometer: 30.48 in S

1032 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.00 in

Rain Saturday: 0.00 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: Calm

Gusts: 0 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

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

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Sun Oct 25, 2026 1:07am EDT

Overview:

- Prolonged stretch of dry weather across southern New England, potentially lasting through Halloween. Afternoon temperatures moderate through Monday, followed by a brief cooldown Tuesday and Wednesday before milder weather returns late in the week.

Overnight:

Patchy Frost

Lo 30 °F

Patchy frost after 3am. Clear, with a low around 30. West wind around 2 mph.

Sunday:

Widespread Frost then Sunny

Hi 65 °F

Widespread frost before 9am. Sunny, with a high near 65. Southwest wind around 3 mph.

Sunday Night:

Clear then Patchy Frost

Lo 34 °F

Patchy frost after 5am. Clear, with a low around 34. Southwest wind around 5 mph.

Monday:

Patchy Frost then Sunny

Hi 68 °F

Patchy frost before 8am. Sunny, with a high near 68. West wind around 7 mph.

Monday Night:

Mostly Clear

Lo 42 °F

Mostly clear, with a low around 42. Northwest wind around 7 mph.

Tuesday:

Sunny

Hi 54 °F

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

Tuesday Night:

Clear then Widespread Frost

Lo 31 °F

Widespread frost after midnight. Clear, with a low around 31. North wind around 3 mph.

Wednesday:

Widespread Frost then Sunny

Hi 56 °F

Widespread frost before 10am. Sunny, with a high near 56. Northeast wind around 3 mph.

Wednesday Night:

Mostly Clear

Lo 38 °F

Mostly clear, with a low around 38. South wind around 6 mph.

Thursday:

Sunny

Hi 66 °F

Sunny, with a high near 66. Southwest wind 6 to 12 mph, with gusts as high as 23 mph.

Thursday Night:

Mostly Clear

Lo 49 °F

Mostly clear, with a low around 49. Southwest wind around 8 mph.

Friday:

Sunny

Hi 68 °F

Sunny, with a high near 68. West wind around 7 mph.

Friday Night:

Mostly Clear

Lo 44 °F

Mostly clear, with a low around 44. Northwest wind around 5 mph.

Saturday:

Mostly Sunny

Hi 64 °F

Mostly sunny, with a high near 64. West wind around 6 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 3am through Mon 2pm

Issued by:
National Weather Service Boston / Norton, MA
Updated Sun Oct 25, 2026 1:07am EDT

3:00am

Patchy Frost

35°F
Dew Pt 33°F
Wind from W

W 2 mph
Precip: 0%

4:00am

Patchy Frost

34°F
Dew Pt 32°F
Wind from W

W 2 mph
Precip: 0%

5:00am

Patchy Frost

33°F
Dew Pt 32°F
Wind from W

W 2 mph
Precip: 0%

6:00am

Widespread Frost

32°F
Dew Pt 31°F
Wind from W

W 2 mph
Precip: 0%

7:00am

Widespread Frost

31°F
Dew Pt 31°F
Wind from W

W 2 mph
Precip: 0%

8:00am

Patchy Frost

34°F
Dew Pt 32°F
Wind from W

W 2 mph
Precip: 0%

9:00am

Sunny

39°F
Dew Pt 31°F
Wind from W

W 2 mph
Precip: 0%

10:00am

Sunny

47°F
Dew Pt 30°F
Wind from W

W 2 mph
Precip: 0%

11:00am

Sunny

54°F
Dew Pt 29°F
Wind from W

W 2 mph
Precip: 0%

12:00pm

Sunny

59°F
Dew Pt 30°F
Wind from SW

SW 2 mph
Precip: 0%

1:00pm

Sunny

62°F
Dew Pt 30°F
Wind from SW

SW 3 mph
Precip: 0%

2:00pm

Sunny

63°F
Dew Pt 30°F
Wind from SW

SW 3 mph
Precip: 0%

3:00pm

Sunny

64°F
Dew Pt 31°F
Wind from SW

SW 3 mph
Precip: 0%

4:00pm

Sunny

63°F
Dew Pt 31°F
Wind from SW

SW 3 mph
Precip: 0%

5:00pm

Sunny

61°F
Dew Pt 32°F
Wind from S

S 3 mph
Precip: 0%

6:00pm

Clear

57°F
Dew Pt 33°F
Wind from S

S 3 mph
Precip: 0%

7:00pm

Clear

54°F
Dew Pt 34°F
Wind from SW

SW 3 mph
Precip: 0%

8:00pm

Clear

50°F
Dew Pt 36°F
Wind Chill: 48°F
Wind from SW

SW 5 mph
Precip: 0%

9:00pm

Clear

48°F
Dew Pt 35°F
Wind Chill: 46°F
Wind from SW

SW 5 mph
Precip: 0%

10:00pm

Clear

47°F
Dew Pt 35°F
Wind Chill: 45°F
Wind from SW

SW 5 mph
Precip: 0%

11:00pm

Clear

46°F
Dew Pt 35°F
Wind Chill: 44°F
Wind from SW

SW 5 mph
Precip: 0%

Mon
12:00am

Clear

44°F
Dew Pt 34°F
Wind Chill: 41°F
Wind from SW

SW 5 mph
Precip: 0%

Mon
1:00am

Mostly Clear

42°F
Dew Pt 34°F
Wind Chill: 39°F
Wind from SW

SW 5 mph
Precip: 0%

Mon
2:00am

Clear

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

SW 5 mph
Precip: 0%

Mon
3:00am

Clear

38°F
Dew Pt 33°F
Wind Chill: 34°F
Wind from W

W 5 mph
Precip: 0%

Mon
4:00am

Mostly Clear

37°F
Dew Pt 32°F
Wind Chill: 33°F
Wind from W

W 5 mph
Precip: 0%

Mon
5:00am

Patchy Frost

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

W 5 mph
Precip: 0%

Mon
6:00am

Patchy Frost

35°F
Dew Pt 32°F
Wind Chill: 31°F
Wind from W

W 5 mph
Precip: 0%

Mon
7:00am

Patchy Frost

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

W 5 mph
Precip: 0%

Mon
8:00am

Sunny

38°F
Dew Pt 33°F
Wind Chill: 34°F
Wind from W

W 5 mph
Precip: 0%

Mon
9:00am

Sunny

44°F
Dew Pt 34°F
Wind Chill: 41°F
Wind from W

W 5 mph
Precip: 0%

Mon
10:00am

Sunny

52°F
Dew Pt 36°F
Wind from W

W 5 mph
Precip: 0%

Mon
11:00am

Sunny

58°F
Dew Pt 37°F
Wind from W

W 5 mph
Precip: 0%

Mon
12:00pm

Sunny

63°F
Dew Pt 38°F
Wind from W

W 6 mph
Precip: 0%

Mon
1:00pm

Sunny

65°F
Dew Pt 40°F
Wind from W

W 6 mph
Precip: 0%

Mon
2:00pm

Sunny

67°F
Dew Pt 41°F
Wind from W

W 7 mph
Precip: 0%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 250557
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
157 AM EDT Sun Oct 25 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,
  potentially lasting through Halloween. Afternoon temperatures
  moderate through Monday, followed by a brief cooldown Tuesday
  and Wednesday before milder weather returns late in the week.

&&

.DISCUSSION...
KEY MESSAGE 1...Prolonged stretch of dry weather across southern New 
England, potentially lasting through Halloween. Afternoon 
temperatures moderate through Monday, followed by a brief cooldown 
Tuesday and Wednesday before milder weather returns late in the week.

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 the upcoming week. Fingers crossed 
this dry pattern holds just a little longer and gives us a dry All 
Hallows' Eve! The next opportunity for precipitation may arrive 
toward the end of next weekend, as global guidance hints at a 
transition toward a more active weather pattern during the first 
week of November.

An expansive area of surface high pressure, around 1035 mb, remains 
anchored across the region. This will promote plenty of sunshine, 
light winds, and generally quiet conditions. Temperatures at 925 mb 
warm to +10C today and +14C Monday. This should support highs in the 
lower to middle 60s today, with some locations potentially reaching 
70F Monday. A moisture-starved cold front approaches from the north-
northwest 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 through Saturday with return flow out of the west-
southwest. DESI probabilities show low to moderate chances of highs 
Friday afternoon reaching 70F or higher, generally between 30 and 50 
percent. 

As for overnight temperatures, many locations are waking up to a 
frosty landscape this morning, with temperatures in the 20s and 
lower 30s. Similar conditions are possible Monday morning, although 
temperatures should be somewhat "warmer," with lows generally in the 
upper 20s to upper 30s. Overnight lows trend closer to seasonable 
levels in the 40s through much of the upcoming week, potentially 
reaching the middle to upper 40s by week's end. One exception may be 
Wednesday morning, when a cooler post-frontal air mass, combined 
with light winds and mainly clear skies, could allow temperatures to 
fall back into the 20s and lower 30s. Confidence remains somewhat 
lower given uncertainty surrounding cloud cover and winds, both of 
which could limit radiational cooling. Be sure to protect those mums 
and Halloween pumpkins!

&&

.AVIATION /06Z SUNDAY THROUGH THURSDAY/...
Forecaster Confidence Levels...

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

06Z TAF Update:

Today through Monday...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 
remain a bit more challenging given the weakly forced environment. 
Surface winds will generally be from the SW at 4 to 8 kt, although a 
weak sea breeze may develop along the coast, similar to Saturday. 
Tonight, winds become light to calm. On Monday, winds shift to a 
more westerly direction, generally less than 10 kt.

KBOS Terminal...High confidence in flight categories, moderate 
confidence in sea-breeze development.

VFR. Prevailing SW winds of 4 to 8 kt. High-resolution guidance 
suggests a weak sea breeze may develop between 16Z and 23Z, shifting 
winds to ESE around 5 kt. 

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

VFR. Light S winds generally less than 5 kt.

Outlook /Monday Night through Thursday/...

Monday Night through Tuesday: VFR. Breezy. 

Tuesday Night: VFR. Widespread frost.

Wednesday through Wednesday Night: VFR. 

Thursday: VFR. Breezy. 

&&

.MARINE...
Forecaster Confidence Levels...

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

Through Monday...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 south, with speeds less than 10 
kt. Similar wind speeds are expected Monday, though directions shift 
to the WSW. Seas subside to 3 to 4 ft or less today and remain at or 
below these levels through Monday.

Outlook /Monday Night through Thursday/...

Monday Night: Low risk for Small Craft Advisory winds with
gusts up to 25 kt. Areas of seas approaching 5 ft. 

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

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

Wednesday Night through Thursday: Winds less than 25 kt. 

&&

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

&&

$$
Dooley

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