Lexington Weather

Current Conditions [‒] Current Conditions [+]

72.1°F Warmer than last hour.

22.3°C

Comfortable

Clear

This Afternoon: Hi 70 °F

Tonight: Lo 48 °F

Dew Point: 40.6°F Decreased 0.8°F since last hour.

Humidity: 32% Decreased 2.0% since last hour.

Air Quality Index: 31

Good

(Ozone)

Barometer: 30.19 in S

1022 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: 2 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

NWS Weather Forecast -
This Afternoon, Tonight, & Tuesday through Sunday Night

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Mon Nov 2, 2026 1:36pm EST

Overview:

- Dry and anomalous warmth continues into mid-week. Daily high in the upper 60s to low 70s, with isolated readings into the mid-70s flirting with daily records.

- Pattern becomes more unsettled late-week into the weekend featuring periodic chances for rain.

This Afternoon:

Mostly Sunny

Hi 70 °F

Mostly sunny. High near 70, with temperatures falling to around 63 in the afternoon. Southwest wind around 8 mph.

Tonight:

Mostly Cloudy

Lo 48 °F

Mostly cloudy, with a low around 48. Southwest wind around 6 mph.

Tuesday:

Mostly Sunny

Hi 73 °F

Mostly sunny. High near 73, with temperatures falling to around 64 in the afternoon. Southwest wind around 5 mph.

Tuesday Night:

Partly Cloudy

Lo 51 °F

Partly cloudy, with a low around 51. Southwest wind around 5 mph.

Wednesday:

Sunny

Hi 76 °F

Sunny, with a high near 76. Southwest wind 5 to 8 mph.

Wednesday Night:

Partly Cloudy

Lo 54 °F

Partly cloudy, with a low around 54. Southwest wind around 7 mph.

Thursday:

Mostly Cloudy then Slight Chance Light Rain

Hi 74 °F

A slight chance of rain and isolated thunderstorms after 5pm. Mostly cloudy, with a high near 74. Southwest wind 5 to 9 mph, with gusts as high as 21 mph.

Thursday Night:

Light Rain Likely

Lo 60 °F

A slight chance of rain and isolated thunderstorms before 7pm, then a slight chance of thunderstorms and a slight chance of rain between 7pm and 8pm, then rain likely and a slight chance of thunderstorms. Mostly cloudy, with a low around 60. South wind around 7 mph. Chance of precipitation is 60%.

Friday:

Light Rain Likely

Hi 69 °F

Rain likely and a chance of thunderstorms. Mostly cloudy, with a high near 69. South wind around 7 mph. Chance of precipitation is 70%.

Friday Night:

Rain Likely

Lo 55 °F

Rain likely and a chance of thunderstorms. Mostly cloudy, with a low around 55. South wind around 3 mph. Chance of precipitation is 70%.

Saturday:

Rain Likely

Hi 66 °F

Rain likely and a slight chance of thunderstorms. Mostly cloudy, with a high near 66. Southwest wind around 6 mph. Chance of precipitation is 60%.

Saturday Night:

Chance Light Rain

Lo 47 °F

A chance of rain. Mostly cloudy, with a low around 47. West wind around 6 mph. Chance of precipitation is 50%.

Sunday:

Slight Chance Light Rain then Partly Sunny

Hi 62 °F

A slight chance of rain before 10am. Partly sunny, with a high near 62. West wind 6 to 9 mph.

Sunday Night:

Partly Cloudy

Lo 41 °F

Partly cloudy, with a low around 41. West wind around 6 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 2pm through Wed 1am

Issued by:
National Weather Service Boston / Norton, MA
Updated Mon Nov 2, 2026 9:01am EST

2:00pm

Mostly Sunny

68°F
Dew Pt 43°F
Wind from SW

SW 8 mph
Precip: 2%

3:00pm

Partly Sunny

68°F
Dew Pt 43°F
Wind from SW

SW 7 mph
Precip: 2%

4:00pm

Mostly Sunny

66°F
Dew Pt 43°F
Wind from SW

SW 7 mph
Precip: 2%

5:00pm

Mostly Sunny

63°F
Dew Pt 43°F
Wind from SW

SW 7 mph
Precip: 3%

6:00pm

Partly Cloudy

61°F
Dew Pt 43°F
Wind from SW

SW 6 mph
Precip: 3%

7:00pm

Mostly Clear

57°F
Dew Pt 43°F
Wind from SW

SW 6 mph
Precip: 2%

8:00pm

Mostly Clear

55°F
Dew Pt 43°F
Wind from SW

SW 6 mph
Precip: 2%

9:00pm

Mostly Clear

54°F
Dew Pt 42°F
Wind from SW

SW 6 mph
Precip: 2%

10:00pm

Partly Cloudy

53°F
Dew Pt 42°F
Wind from SW

SW 6 mph
Precip: 2%

11:00pm

Partly Cloudy

52°F
Dew Pt 42°F
Wind from SW

SW 5 mph
Precip: 2%

Tue
12:00am

Partly Cloudy

52°F
Dew Pt 42°F
Wind from SW

SW 5 mph
Precip: 2%

Tue
1:00am

Partly Cloudy

51°F
Dew Pt 42°F
Wind from SW

SW 5 mph
Precip: 2%

Tue
2:00am

Mostly Cloudy

49°F
Dew Pt 42°F
Wind Chill: 47°F
Wind from SW

SW 5 mph
Precip: 2%

Tue
3:00am

Mostly Cloudy

49°F
Dew Pt 42°F
Wind Chill: 47°F
Wind from SW

SW 5 mph
Precip: 2%

Tue
4:00am

Mostly Cloudy

48°F
Dew Pt 42°F
Wind Chill: 46°F
Wind from W

W 5 mph
Precip: 2%

Tue
5:00am

Mostly Cloudy

47°F
Dew Pt 43°F
Wind Chill: 46°F
Wind from W

W 3 mph
Precip: 0%

Tue
6:00am

Mostly Sunny

48°F
Dew Pt 43°F
Wind Chill: 47°F
Wind from W

W 3 mph
Precip: 3%

Tue
7:00am

Mostly Sunny

48°F
Dew Pt 43°F
Wind Chill: 47°F
Wind from W

W 3 mph
Precip: 0%

Tue
8:00am

Mostly Sunny

51°F
Dew Pt 45°F
Wind from W

W 3 mph
Precip: 0%

Tue
9:00am

Mostly Sunny

58°F
Dew Pt 47°F
Wind from SW

SW 3 mph
Precip: 0%

Tue
10:00am

Mostly Sunny

63°F
Dew Pt 48°F
Wind from W

W 3 mph
Precip: 0%

Tue
11:00am

Mostly Sunny

66°F
Dew Pt 49°F
Wind from SW

SW 3 mph
Precip: 0%

Tue
12:00pm

Partly Sunny

69°F
Dew Pt 49°F
Wind from SW

SW 3 mph
Precip: 0%

Tue
1:00pm

Mostly Sunny

70°F
Dew Pt 48°F
Wind from SW

SW 3 mph
Precip: 0%

Tue
2:00pm

Mostly Sunny

70°F
Dew Pt 48°F
Wind from SW

SW 3 mph
Precip: 0%

Tue
3:00pm

Mostly Sunny

70°F
Dew Pt 48°F
Wind from S

S 3 mph
Precip: 0%

Tue
4:00pm

Mostly Cloudy

67°F
Dew Pt 48°F
Wind from S

S 3 mph
Precip: 0%

Tue
5:00pm

Mostly Cloudy

65°F
Dew Pt 48°F
Wind from S

S 3 mph
Precip: 0%

Tue
6:00pm

Mostly Cloudy

62°F
Dew Pt 48°F
Wind from S

S 3 mph
Precip: 0%

Tue
7:00pm

Partly Cloudy

58°F
Dew Pt 48°F
Wind from S

S 3 mph
Precip: 0%

Tue
8:00pm

Mostly Cloudy

57°F
Dew Pt 48°F
Wind from S

S 3 mph
Precip: 0%

Tue
9:00pm

Mostly Cloudy

56°F
Dew Pt 48°F
Wind from SW

SW 3 mph
Precip: 0%

Tue
10:00pm

Mostly Cloudy

55°F
Dew Pt 47°F
Wind from SW

SW 3 mph
Precip: 0%

Tue
11:00pm

Mostly Cloudy

54°F
Dew Pt 47°F
Wind from SW

SW 3 mph
Precip: 0%

Wed
12:00am

Partly Cloudy

53°F
Dew Pt 48°F
Wind from SW

SW 3 mph
Precip: 0%

Wed
1:00am

Partly Cloudy

52°F
Dew Pt 48°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 021733
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
1233 PM EST Mon Nov 2 2026

.WHAT HAS CHANGED...
No significant changes to the forecast since the last update.

&&

.KEY MESSAGES...

- Dry and anomalous warmth continues into mid-week. Daily high
  in the upper 60s to low 70s, with isolated readings into the
  mid-70s flirting with daily records.

- Pattern becomes more unsettled late-week into the weekend 
  featuring periodic chances for rain.

&&

.DISCUSSION...
KEY MESSAGE 1...Dry and unseasonably mild into mid-week with highs 
mainly in the upper 60s to the lower 70s. Some spots may reach into 
the middle 70s for a day or two and challenge record highs. 

Little change in the synoptic pattern as a stout upper ridge remains 
parked overhead through midweek. With ongoing antecedent dry 
conditions, leaned on the warmer envelope of guidance instead of the 
MOS/NBM output which continues to run a bit too cool for afternoon 
highs. Highs will generally peak in the upper 60s to low 70s (cooler 
along the immediate south coast, Cape, and Islands). With 925mb 
temps warming to +11C to +15C, peak heating towards mid-week likely 
push locations in interior SNE to the mid 70s, likely putting 
several daily high records in jeopardy. Only real fly in the 
ointment will be scattered high clouds periodically filtering the 
full sun through mid-week. High confidence persists in an 
unseasonably mild, dry regime through Wednesday.


KEY MESSAGE 2...Pattern becomes more unsettled late-week into the 
weekend featuring periodic chances for rain. 

Ensemble guidance shows a consensus in a shift of the pattern late 
Thursday into Friday as a mid-level trough arrives from the west. 
This will advect in a plume of rich moisture 2-3 standard deviations 
above normal. This will be accompanied by a frontal system that 
pushes across the Ohio River Valley and into the Mid-Atlantic and 
Northeast. This will likely bring us our next best shot at 
precipitation. Details such as timing, rain amounts/rates are still 
lower confidence due to uncertainty in the tracking of the surface 
features/best forcing. If the frontal features track closer, this 
could put southern New England in better forced environment and 
potentially with marginal instability present. This could favor a 
few rumbles of thunders or heavier downpours. Timing of this is low 
confidence due to the track uncertainties, but the general timeframe 
is late Thu through Sat. Lighter/spotty showers may linger at 
late as Sunday. However, it likely won't be rain for the entire 
timeframe. 

Ensemble guidance highlights probabilities of 30-60% for rain totals 
of 0.50" or more and low probabilities (10-30%) for 1.0" or greater. 
Deterministic solutions have leaned toward the upper percentile 
solutions of their ensemble suite showing potential for amounts 1.0 
to upward of 2.0" inches. Once guidance comes into better agreement, 
confidence will increase in the exact timing of rainfall and totals. 

Above normal temperatures are likely Thursday with the mid-level 
thermal ridge shifting over southern New England with 925mb 
temperatures +13-15C. This will support high temperatures in the 
upper 60s to low/mid 70s! Temperatures likely lean seasonably warm 
for Friday as well. Depending on how the system tracks, we may get 
one more day of milder temperatures Saturday with more
seasonable temperatures arriving by Sunday.

&&

.AVIATION /18Z MONDAY THROUGH SATURDAY/...
Forecaster Confidence Levels...

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

18z TAF Update...High confidence.

VFR conditions will continue through the middle of the week 
with some mid-high level cloudiness at times. Winds will 
generally average from the SW at 5 to 15 knots during the 
afternoon. 

KBOS Terminal...High confidence in TAF. 

KBDL Terminal...High confidence in TAF.

Outlook /Wednesday Night through Friday/...

Tuesday Night through Wednesday Night: VFR. 

Thursday: Mainly VFR, with local MVFR possible. Breezy. Slight
chance RA.

Thursday Night through Friday: Mainly VFR, with local IFR
possible. RA likely.

&&

.MARINE...
Forecaster Confidence Levels...

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

Today through Wednesday...High confidence.

An upper level ridge of high pressure will keep winds/seas below 
small craft advisory thresholds through the middle of the week. 
Nonetheless...we may have some SW wind gusts of 20+ knots at times 
particularly nearshore during the afternoons. This may result in 
some choppy seas at times...but thinking we should remain below the 
need for headlines. Greatest chance of 20+ knot winds is this 
afternoon across the SE waters.

Outlook /Wednesday Night through Friday/...

Tuesday Night through Thursday: Winds less than 25 kt. 

Thursday Night: Winds less than 25 kt. Seas locally approaching
5 ft. Chance of rain, slight chance of thunderstorms. 

Friday: Winds less than 25 kt. Seas up to 5 ft. Rain likely,
slight chance of thunderstorms.

&&

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

&&

$$

DISCUSSION...Frank/FT
AVIATION...BW
MARINE...Frank/FT

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