Lexington Weather

Current Conditions [‒] Current Conditions [+]

57.6°F Colder than last hour.

14.2°C

Cool

Clear

Tonight: Lo 51 °F

Wednesday: Hi 77 °F

Dew Point: 48.6°F Increased 0.9°F since last hour .

Humidity: 72% Increased 5.0% since last hour.

Air Quality Index: 31

Good

(Fine Particles)

Barometer: 30.08 in S

1019 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.00 in

Rain Tuesday: 0.00 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: Calm

Gusts: 3 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

NWS Weather Forecast -
Tonight, Wednesday, & Wednesday Night through Tuesday

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Tue Nov 3, 2026 7:14pm EST

Overview:

- Unseasonable warmth and dry weather continues today

- Wet and unsettled weather returns Thursday into this weekend. Continued above normal temperatures before cooler conditions arrive Sunday and beyond.

Tonight:

Mostly Cloudy

Lo 51 °F

Mostly cloudy, with a low around 51. Southwest wind around 6 mph.

Wednesday:

Mostly Sunny

Hi 77 °F

Mostly sunny. High near 77, with temperatures falling to around 67 in the afternoon. Southwest wind 5 to 10 mph.

Wednesday Night:

Partly Cloudy

Lo 55 °F

Partly cloudy, with a low around 55. Southwest wind around 8 mph.

Thursday:

Mostly Cloudy then Slight Chance Light Rain

Hi 75 °F

A slight chance of rain between 4pm and 5pm. Mostly cloudy, with a high near 75. Southwest wind 7 to 12 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

Thursday Night:

Mostly Cloudy then Chance Light Rain

Lo 62 °F

A chance of rain after 1am. Mostly cloudy, with a low around 62. Southwest wind around 8 mph. Chance of precipitation is 50%.

Friday:

Rain

Hi 70 °F

Rain likely before 1pm, then rain and a slight chance of thunderstorms. Mostly cloudy, with a high near 70. South wind around 6 mph. Chance of precipitation is 80%.

Friday Night:

Rain

Lo 56 °F

Rain and a chance of thunderstorms. Cloudy, with a low around 56. East wind around 6 mph. Chance of precipitation is 80%.

Saturday:

Light Rain Likely

Hi 64 °F

Rain likely and a slight chance of thunderstorms. Mostly cloudy, with a high near 64. Northwest wind around 7 mph. Chance of precipitation is 70%.

Saturday Night:

Chance Light Rain

Lo 44 °F

A chance of rain. Mostly cloudy, with a low around 44. Northwest wind around 6 mph. Chance of precipitation is 50%.

Sunday:

Chance Light Rain then Mostly Sunny

Hi 60 °F

A chance of rain before noon. Mostly sunny, with a high near 60. West wind 5 to 8 mph. Chance of precipitation is 30%.

Sunday Night:

Partly Cloudy

Lo 38 °F

Partly cloudy, with a low around 38. West wind around 6 mph.

Monday:

Mostly Sunny then Slight Chance Light Rain

Hi 58 °F

A slight chance of rain after noon. Mostly sunny, with a high near 58. West wind 6 to 10 mph, with gusts as high as 21 mph.

Monday Night:

Slight Chance Light Rain

Lo 37 °F

A slight chance of rain before 1am. Partly cloudy, with a low around 37. West wind around 8 mph.

Tuesday:

Mostly Sunny

Hi 58 °F

Mostly sunny, with a high near 58. Southwest wind 8 to 12 mph, with gusts as high as 25 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 4am through Thu 3pm

Issued by:
National Weather Service Boston / Norton, MA
Updated Tue Nov 3, 2026 7:14pm EST

4:00am

Partly Cloudy

52°F
Dew Pt 47°F
Wind from SW

SW 6 mph
Precip: 3%

5:00am

Partly Cloudy

52°F
Dew Pt 48°F
Wind from SW

SW 6 mph
Precip: 4%

6:00am

Mostly Sunny

51°F
Dew Pt 48°F
Wind from SW

SW 5 mph
Precip: 4%

7:00am

Sunny

52°F
Dew Pt 49°F
Wind from SW

SW 6 mph
Precip: 5%

8:00am

Sunny

56°F
Dew Pt 50°F
Wind from SW

SW 6 mph
Precip: 5%

9:00am

Mostly Sunny

61°F
Dew Pt 51°F
Wind from SW

SW 7 mph
Precip: 5%

10:00am

Mostly Sunny

67°F
Dew Pt 52°F
Wind from SW

SW 7 mph
Precip: 5%

11:00am

Mostly Sunny

70°F
Dew Pt 52°F
Wind from SW

SW 8 mph
Precip: 5%

12:00pm

Mostly Sunny

74°F
Dew Pt 52°F
Wind from SW

SW 9 mph
Precip: 4%

1:00pm

Mostly Sunny

75°F
Dew Pt 52°F
Wind from SW

SW 10 mph
Precip: 4%

2:00pm

Mostly Sunny

75°F
Dew Pt 52°F
Wind from SW

SW 9 mph
Precip: 4%

3:00pm

Mostly Sunny

75°F
Dew Pt 52°F
Wind from SW

SW 9 mph
Precip: 3%

4:00pm

Mostly Sunny

71°F
Dew Pt 52°F
Wind from SW

SW 8 mph
Precip: 3%

5:00pm

Sunny

67°F
Dew Pt 52°F
Wind from SW

SW 7 mph
Precip: 3%

6:00pm

Mostly Clear

64°F
Dew Pt 53°F
Wind from SW

SW 8 mph
Precip: 3%

7:00pm

Mostly Clear

62°F
Dew Pt 53°F
Wind from SW

SW 8 mph
Precip: 0%

8:00pm

Mostly Clear

60°F
Dew Pt 53°F
Wind from SW

SW 8 mph
Precip: 0%

9:00pm

Mostly Clear

59°F
Dew Pt 53°F
Wind from SW

SW 7 mph
Precip: 0%

10:00pm

Mostly Clear

58°F
Dew Pt 53°F
Wind from SW

SW 7 mph
Precip: 0%

11:00pm

Mostly Clear

58°F
Dew Pt 53°F
Wind from SW

SW 7 mph
Precip: 0%

Thu
12:00am

Partly Cloudy

56°F
Dew Pt 54°F
Wind from SW

SW 7 mph
Precip: 0%

Thu
1:00am

Partly Cloudy

56°F
Dew Pt 54°F
Wind from SW

SW 6 mph
Precip: 0%

Thu
2:00am

Partly Cloudy

55°F
Dew Pt 54°F
Wind from SW

SW 6 mph
Precip: 0%

Thu
3:00am

Partly Cloudy

55°F
Dew Pt 54°F
Wind from SW

SW 6 mph
Precip: 0%

Thu
4:00am

Partly Cloudy

55°F
Dew Pt 54°F
Wind from SW

SW 7 mph
Precip: 0%

Thu
5:00am

Mostly Cloudy

55°F
Dew Pt 55°F
Wind from SW

SW 7 mph
Precip: 0%

Thu
6:00am

Partly Sunny

54°F
Dew Pt 54°F
Wind from SW

SW 7 mph
Precip: 0%

Thu
7:00am

Partly Sunny

55°F
Dew Pt 55°F
Wind from SW

SW 7 mph
Precip: 1%

Thu
8:00am

Partly Sunny

58°F
Dew Pt 58°F
Wind from SW

SW 8 mph
Precip: 1%

Thu
9:00am

Partly Sunny

62°F
Dew Pt 60°F
Wind from SW

SW 9 mph
Precip: 2%

Thu
10:00am

Partly Sunny

68°F
Dew Pt 61°F
Wind from SW

SW 9 mph
Precip: 3%

Thu
11:00am

Mostly Cloudy

71°F
Dew Pt 61°F
Wind from SW

SW 10 mph
Precip: 4%

Thu
12:00pm

Mostly Cloudy

72°F
Dew Pt 61°F
Wind from SW

SW 12 mph
Precip: 4%

Thu
1:00pm

Mostly Cloudy

73°F
Dew Pt 60°F
Wind from SW

SW 12 mph
Precip: 12%

Thu
2:00pm

Mostly Cloudy

72°F
Dew Pt 60°F
Wind from SW

SW 12 mph
Precip: 13%

Thu
3:00pm

Mostly Cloudy

71°F
Dew Pt 61°F
Wind from SW

SW 10 mph
Precip: 14%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 040905
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
405 AM EST Wed Nov 4 2026

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

&&

.KEY MESSAGES...

- Unseasonable warmth and dry weather continues today

- Wet and unsettled weather returns Thursday into this weekend.
  Continued above normal temperatures before cooler conditions
  arrive Sunday and beyond.

&&

.DISCUSSION...
KEY MESSAGE 1...Unseasonable warmth and dry weather continues
today 

Not much change to the overall synoptic pattern, High pressure 
over the North Atlantic will maintain steady south to southwest
winds. Will continue to favor the warmest temperature guidance
today since temperatures did not lower much overnight. Both the
REFS and NBM had rather high probabilities for max temperatures
to be 15-20 degrees above normal today, especially across
eastern MA as well as the CT River valley. Some record high
temperatures could be met or broken. Record at BOS is 78, PVD 
77, ORH 74, BDL 78. 

A warm day will be followed by another warm night. Overnight
temperatures fall into the 50s which is about average for our 
high temperatures this time of year. Some locations may have a 
shot at meeting/breaking the high min record. 

KEY MESSAGE 2...Wet and unsettled weather returns Thursday into 
this weekend. Continued above normal temperatures before 
cooler conditions arrive Sunday and beyond.

Ensemble guidance continues to herald the end of our highly
anomalous stretch of dry weather by Thursday, kicking off a 
period of 36-48 hours of periodic rainfall, sometimes heavy. 
This comes courtesy of a few things; first is an approaching 
front extending from a trough of low pressure crossing the Great
Lakes. After moving through NY state, this front stalls across 
New England from SW to NE late Thursday. This brings an initial
round of rain chances for Thursday, mainly for western areas of
SNE, while much of the region southeast of a BDL-ORH line may
remain dry. A more widespread and heavier rainfall should then 
arrive for Friday into early Saturday as a secondary low
pressure forms along this front. It deepens as it lifts north 
in the vicinity of Cape Cod Saturday, and then even moreso over
the Gulf of Maine on Sunday, by which time we'll be on the 
drier side. 

There will be a lot of moisture for this system to work with as 
persistent moist SW flow ahead of the upper trough pulls in PWATs 
over 1.5" and dewpoints into the lower 60s! This will lead to 
very warm conditions Friday morning (in the lower 60s) but more
importantly, fuel for the good dynamics to work with. These 
elevated dewpoints will generate some instability, allowing for 
some convection to contribute to localized downpours, while 
convergence around the low and placement beneath the RRQ of a 
105kt upper jet will provide more lift in the meso/synoptic 
scale.

The exact placement of the swath of heaviest rainfall will
unfortunately not be nailed down until we get closer to this
event as it will be determined by where exactly this front 
stalls. Generally ensemble guidance is calling for a 1-3"
rainfall, with EPS and GEFS calling for a 50-60% and 30-40% chance
of 1" or greater rainfall respectively, centered over central
and eastern SNE. Fortunately, we've been very dry and flash 
flood guidance is high. Thus, not expecting flash flooding to 
be an issue though some poor drainage/urban flooding is possible
especially given the leaves blocking drainage this time of 
year. There is a marginal risk within the Excessive Rainfall
Outlook for Friday into Saturday.

Beyond Saturday, we'll see some scattered showers continuing as
the upper trough is slow to exit overhead; nothing like 
Friday/Saturday though. NW flow ushers in a colder, albeit
closer to normal, airmass for early next week with high
temperatures returning to the 50s.

&&

.AVIATION /07Z WEDNESDAY THROUGH SUNDAY/...
Forecaster Confidence Levels...

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

Today...High confidence.

VFR. SCT higher decks possible during the day. Areas of lower
FEW/SCT cloud decks can't be ruled out along the south 
coast/Cape terminals. Winds SSW/SW at 5-15 kts. Few gusts to
18-20 kts for ORH and coastal terminals this afternoon.

Tonight...Moderate confidence.

Initially VFR, likely falling to MVFR and IFR after 06z due to
lower ceilings. Areas along could see reduced visbys to MVFR/IFR
levels earlier in the overnight period, but these could exit 
after 06z. S to SSW winds overnight at 5-10 kt, with some areas
in the higher elevations seeing occasional 18 kt gusts after 
06z.

Thursday...Moderate confidence.

Areas of MVFR and IFR to start. Slow improvement to VFR from SE
to NW. IFR could linger across the higher terrain of central and
western MA into evening.

KBOS Terminal...High confidence in TAF.

KBDL Terminal...High confidence in TAF.

Outlook /Thursday Night through Sunday/...

Thursday Night: Mainly VFR, with local IFR possible. Breezy.
Chance RA.

Friday: MVFR/IFR conditions possible. RA, slight chance TSRA.

Friday Night: Mainly MVFR, with local IFR possible. RA, slight
chance TSRA.

Saturday: Mainly VFR, with local MVFR possible. Chance RA.

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

Sunday: VFR. Breezy. Slight chance RA.

&&

.MARINE...
Forecaster Confidence Levels...

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

Through Thursday...High confidence.

Surface high pressure stays positioned SE of the waters into
Thursday. Winds become breezy by this afternoon with 20 kt gusts.
A few gusts up to 20-25 kts are possible, with the greatest 
chance for the SE coastal waters near the Cape/Islands. Gusts 
likely aren't consistent enough 25kt+ over a period to warrant 
Small Craft Advisories at this time.

Outlook /Thursday Night through Sunday/...

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

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

Friday Night: Winds less than 25 kt. Local rough seas. Rain,
slight chance of thunderstorms. Local visibility 1 to 3 nm.

Saturday: Winds less than 25 kt. Seas up to 5 ft. Chance of
rain, slight chance of thunderstorms. 

Saturday Night through Sunday: Winds less than 25 kt. Seas up
to 5 ft. Slight chance of rain. 

&&

.CLIMATE...
Persistent unseasonable warmth over the next several day will
challenge calendar-day record highs and record high minimums
across southern New England climate sites.

Daily Record Highs to Watch:

Boston (BOS): Wednesday 78F (1987)|Thursday 79F (1994) 

Hartford/Bradley (BDL): Wednesday 78F (1987)|Thursday 75F (2022)

Providence (PVD): Wednesday 77F (1987)|Thursday 75F (1994)

Worcester (ORH): Wednesday 74F (1987)|Thursday 73F (1994)


Daily Record Lows to Watch:

Boston (BOS): Thursday 56F (1994)|Friday 57F (2020)

Hartford/Bradley (BDL): Thursday 55F (1994)|Friday 56F (2020)

Providence (PVD): Thursday 56F (1994)|Friday 58F (2020)

Worcester (ORH): Thursday 55F (1994)| 55F (2020)

&&

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

&&

$$

DISCUSSION...Belk/BW
AVIATION...Belk
MARINE...Belk/BW
CLIMATE...BW/Mensch

CLOSE