Lexington Weather

Current Conditions [‒] Current Conditions [+]

30.0°F Colder than last hour.

-1.1°C

Cold

Clear

Tonight: Lo 26 °F

Friday: Hi 49 °F

Dew Point: 27.7°F Decreased 0.5°F since last hour.

Humidity: 91%

Air Quality Index: 43

Good

(Fine Particles)

Barometer: 30.26 in S

1025 mb

Snow Today: 0.0 in

Snow Thursday: 0.0 in

January: 1.0 in

Winter: 6.1 in

Depth: 0.5 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: Calm

Gusts: 0 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

NWS Weather Forecast -
Tonight, Friday, & Friday Night through Thursday

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Thu Jan 8, 2026 1:10pm EST

Tonight:

Patchy Fog

Lo 26 °F

Patchy fog between 8pm and 2am, then patchy freezing fog. Partly cloudy, with a low around 26. Southwest wind around 2 mph.

Friday:

Patchy Freezing Fog then Chance Light Rain

Hi 49 °F

Patchy freezing fog before 8am, then a chance of rain. Mostly cloudy, with a high near 49. South wind 2 to 9 mph. Chance of precipitation is 30%.

Friday Night:

Light Rain Likely

Lo 38 °F

Rain likely before 8pm, then rain likely and patchy fog between 8pm and 1am, then patchy fog and a slight chance of rain between 1am and 3am. Mostly cloudy, with a low around 38. Southwest wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

Saturday:

Mostly Cloudy then Light Rain Likely

Hi 45 °F

Rain likely after 1pm. Mostly cloudy, with a high near 45. North wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

Saturday Night:

Light Rain

Lo 37 °F

Rain. Cloudy, with a low around 37. Northeast wind around 6 mph. Chance of precipitation is 90%.

Sunday:

Light Rain Likely

Hi 42 °F

Rain likely. Cloudy, with a high near 42. North wind around 8 mph. Chance of precipitation is 70%.

Sunday Night:

Slight Chance Light Snow

Lo 27 °F

A chance of rain before 11pm, then a slight chance of snow between 11pm and 3am. Partly cloudy, with a low around 27. West wind 8 to 12 mph. Chance of precipitation is 30%.

Monday:

Mostly Sunny

Hi 36 °F

Mostly sunny, with a high near 36. West wind 8 to 13 mph, with gusts as high as 24 mph.

Monday Night:

Mostly Cloudy

Lo 29 °F

Mostly cloudy, with a low around 29. West wind around 7 mph.

Tuesday:

Mostly Sunny

Hi 43 °F

Mostly sunny, with a high near 43. Southwest wind 7 to 10 mph.

Tuesday Night:

Mostly Cloudy

Lo 33 °F

Mostly cloudy, with a low around 33. Southwest wind around 7 mph.

Wednesday:

Mostly Cloudy

Hi 46 °F

Mostly cloudy, with a high near 46. Southwest wind around 8 mph.

Wednesday Night:

Chance Light Rain

Lo 31 °F

A chance of rain. Mostly cloudy, with a low around 31. Southwest wind around 6 mph. Chance of precipitation is 30%.

Thursday:

Chance Light Rain

Hi 39 °F

A chance of rain. Partly sunny, with a high near 39. Northwest wind around 7 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 1am through Sat 12pm

Issued by:
National Weather Service Boston / Norton, MA
Updated Fri Jan 9, 2026 12:42am EST

1:00am

Patchy Freezing Fog

30°F
Dew Pt 28°F
Wind from W

W 1 mph
Precip: 0%

2:00am

Patchy Freezing Fog

29°F
Dew Pt 27°F
Wind from W

W 1 mph
Precip: 0%

3:00am

Patchy Freezing Fog

28°F
Dew Pt 26°F
Wind from SW

SW 1 mph
Precip: 0%

4:00am

Patchy Freezing Fog

27°F
Dew Pt 26°F
Wind from S

S 1 mph
Precip: 0%

5:00am

Patchy Freezing Fog

28°F
Dew Pt 26°F
Wind from S

S 2 mph
Precip: 0%

6:00am

Patchy Freezing Fog

28°F
Dew Pt 26°F
Wind from S

S 2 mph
Precip: 1%

7:00am

Patchy Freezing Fog

28°F
Dew Pt 27°F
Wind from S

S 2 mph
Precip: 1%

8:00am

Patchy Freezing Fog

29°F
Dew Pt 28°F
Wind from S

S 2 mph
Precip: 1%

9:00am

Patchy Fog

32°F
Dew Pt 30°F
Wind Chill: 29°F
Wind from S

S 3 mph
Precip: 1%

10:00am

Patchy Fog

35°F
Dew Pt 33°F
Wind Chill: 30°F
Wind from S

S 6 mph
Precip: 1%

11:00am

Patchy Fog

39°F
Dew Pt 34°F
Wind Chill: 35°F
Wind from S

S 6 mph
Precip: 1%

12:00pm

Partly Sunny

41°F
Dew Pt 36°F
Wind Chill: 36°F
Wind from S

S 7 mph
Precip: 1%

1:00pm

Partly Sunny

43°F
Dew Pt 38°F
Wind Chill: 38°F
Wind from S

S 9 mph
Precip: 1%

2:00pm

Partly Sunny

44°F
Dew Pt 38°F
Wind Chill: 39°F
Wind from S

S 9 mph
Precip: 3%

3:00pm

Mostly Cloudy

45°F
Dew Pt 39°F
Wind Chill: 40°F
Wind from S

S 10 mph
Precip: 6%

4:00pm

Mostly Cloudy

44°F
Dew Pt 39°F
Wind Chill: 39°F
Wind from S

S 10 mph
Precip: 8%

5:00pm

Chance Rain Showers

45°F
Dew Pt 40°F
Wind Chill: 40°F
Wind from S

S 10 mph
Precip: 27%

6:00pm

Chance Rain Showers

47°F
Dew Pt 40°F
Wind Chill: 43°F
Wind from S

S 12 mph
Precip: 30%

7:00pm

Rain Showers Likely

45°F
Dew Pt 41°F
Wind Chill: 40°F
Wind from S

S 12 mph
Precip: 56%
Rain: 0.01 in

8:00pm

Chance Rain Showers

45°F
Dew Pt 43°F
Wind Chill: 40°F
Wind from S

S 13 mph
Precip: 48%
Rain: 0.01 in

9:00pm

Chance Rain Showers

46°F
Dew Pt 45°F
Wind Chill: 41°F
Wind from S

S 13 mph
Precip: 39%

10:00pm

Patchy Fog

47°F
Dew Pt 46°F
Wind Chill: 42°F
Wind from SW

SW 13 mph
Precip: 17%

11:00pm

Patchy Fog

48°F
Dew Pt 46°F
Wind Chill: 43°F
Wind from SW

SW 12 mph
Precip: 10%

Sat
12:00am

Patchy Fog

49°F
Dew Pt 47°F
Wind Chill: 45°F
Wind from SW

SW 12 mph
Precip: 4%

Sat
1:00am

Patchy Fog

49°F
Dew Pt 47°F
Wind Chill: 45°F
Wind from SW

SW 10 mph
Precip: 3%

Sat
2:00am

Mostly Cloudy

48°F
Dew Pt 45°F
Wind Chill: 44°F
Wind from W

W 9 mph
Precip: 0%

Sat
3:00am

Mostly Cloudy

45°F
Dew Pt 41°F
Wind Chill: 41°F
Wind from W

W 8 mph
Precip: 0%

Sat
4:00am

Partly Cloudy

42°F
Dew Pt 39°F
Wind Chill: 37°F
Wind from W

W 8 mph
Precip: 0%

Sat
5:00am

Partly Cloudy

39°F
Dew Pt 37°F
Wind Chill: 34°F
Wind from W

W 7 mph
Precip: 0%

Sat
6:00am

Partly Sunny

39°F
Dew Pt 35°F
Wind Chill: 35°F
Wind from W

W 6 mph
Precip: 0%

Sat
7:00am

Partly Sunny

37°F
Dew Pt 34°F
Wind Chill: 32°F
Wind from W

W 6 mph
Precip: 0%

Sat
8:00am

Partly Sunny

39°F
Dew Pt 35°F
Wind Chill: 35°F
Wind from W

W 6 mph
Precip: 0%

Sat
9:00am

Mostly Cloudy

40°F
Dew Pt 35°F
Wind Chill: 37°F
Wind from W

W 5 mph
Precip: 0%

Sat
10:00am

Mostly Cloudy

42°F
Dew Pt 35°F
Wind Chill: 39°F
Wind from NW

NW 5 mph
Precip: 1%

Sat
11:00am

Mostly Cloudy

43°F
Dew Pt 35°F
Wind Chill: 40°F
Wind from NW

NW 5 mph
Precip: 7%

Sat
12:00pm

Mostly Cloudy

44°F
Dew Pt 34°F
Wind Chill: 42°F
Wind from NW

NW 3 mph
Precip: 13%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 090528
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
1228 AM EST Fri Jan 9 2026

.WHAT HAS CHANGED...
Increased confidence in patchy freezing drizzle/fog that may result 
in icy conditions on untreated surfaces tonight into Friday
morning.

&&

.KEY MESSAGES...

- Areas of freezing fog tonight into Friday morning. Light rain
  overnight Friday.
 
- A low-pressure system brings a soaking rainfall 
Saturday, with rain possibly lingering into Sunday.

- A cold front brings cool and blustery conditions 
back to the region late Sunday into Monday.

&&

.DISCUSSION...
KEY MESSAGE 1...Patches of freezing fog tonight into Friday 
morning. Light rain overnight Friday. 

Surface high pressure moves offshore overnight. Light return flow 
allows dew point temperatures to rise into the upper 20s/ lower 30s. 
BUFKIT soundings show ideal conditions for fog with an inversion 
near the surface along with a saturated layer up to about 1 kft. 
Given the surface temperatures are below freezing, patchy freezing 
fog is likely late tonight into Friday morning. Thankfully, the 
freezing fog threat will quickly diminish after 12z Friday as 
surface temperatures warm above freezing. Strengthening southwest 
winds aloft result in strong WAA with 850mb temperatures rising 
between +4C to +6C Friday afternoon. As a result, it should be a 
warmer day with highs climbing into the mid and upper 40s for most 
of the region. NBM even shows areas of southern Massachusetts 
and Rhode Island touching 50F. Surface warm front moves through 
southern New England Friday night into early Saturday morning. 
Guidance still shows a broken band of showers with QPF between 
0.10 and 0.25 inches, certainly not a washout. Highest totals 
will be further to the north across northern New England, with 
the parent low pressure system. No p-type issues expected with 
this event as temperatures Friday night remain in the low-40s at
the coast and upper 30s across interior locations. 

KEY MESSAGE 2...A low-pressure system brings a soaking rainfall 
Saturday, with rain possibly lingering into Sunday.

Shortwave energy arrives well ahead of the parent shortwave back 
over the Northern Great Plains on Saturday.  This allows several 
weak surface lows to spin up along the nearshore baroclinic zone and 
bring rain to the region on Saturday.  With a warm airmass in place 
and extra moisture flowing in from the mid-Atlantic, PWATS surge to 
around 0.9 to 1.1 inches.  Best forcing and moisture will be near 
the south coast as the wave of low pressure passes just offshore. 
There is still quite a bit of spread in QPF totals, as ensembles 
show wide ranges in the 25th-75th percentiles.  Regardless, QPF will 
be highest near the south coast, where the 25th-75th percentile 
range is between .35 and 1.15 inches, while further north, the range 
is .15 to 0.55 inches.  

Saturday morning should remain dry, with rain moving in from south 
to north in the late morning to early afternoon.  Given that rain 
will begin during the daytime hours, freezing rain concerns will be 
limited, likely occurring only in pockets of the northern high 
terrain where cold air may be tough to scour out.  

Rain ends from west to east late Saturday evening into the 
overnight.  Another wave of low pressure rides up the stalled 
frontal boundary offshore, possibly bringing another round of rain 
to the south coast on Sunday.  High temperatures over the weekend 
remain mild, with mid to upper 40s on Saturday, then upper 30s to 
low 40s on Sunday.

KEY MESSAGE 3...A cold front brings cool and blustery conditions 
back to the region late Sunday into Monday.

A cold front moves through the region Sunday evening, helping clear 
out the remaining rain.  The cold front will squeeze out the 
remaining moisture from the weekend, leading to isolated snow 
showers and possibly weak snow squalls Sunday evening. Temperatures 
will crash Sunday night, bottoming out in the low to mid 20s.  Any 
remaining standing water from this weekends rain will freeze by 
Monday morning, possibly leading to some slippery conditions for the 
Monday AM commute.  High temperatures on Monday will recover into 
the low to mid 30s, but gusty west winds at 20-25mph will bring the 
wind chill index into the low 20s.

Looking ahead into next week, cool and dry conditions persist 
through Wednesday or Thursday, with the pattern possibly turning 
more active again late in the week into next weekend.

&&

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

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

TAF Update: 06z

Through this morning... Moderate Confidence. 

VFR to start, low-level moisture leads to lower visibility after 03z-
04z, between 2SM to 5SM. Areas of fog may lead to a SCT to BKN group 
of IFR clouds, but confidence in this is lower. With below freezing 
temperatures expected, moisture can refreeze on untreated surfaces. 
Areas in southeast Massachusetts and Rhode Island have a low chance, 
less than 30%, of visibility to lower below 1/2 mile, and there 
freezing dense fog or freezing drizzle are possible. Included PROB30 
for KPVD. Light south wind less than 5 knots. Improving conditions 
between 13z and 15z.

Today and Tonight... Moderate Confidence. 

VFR, becoming MVFR after 20z as a warm front approaches. South to 
south-southwest winds increasing, gusts 20 to 25 knots after 18z.
Areas of SHRA move in from west to east 22z-00z, conditions briefly 
lower to IFR, showers diminish between 03-06z, improving back to VFR 
06-09z, while MVFR lingers on the Cape and Islands through 09z-12z. 
Wind shifts to the west to west-northwest between 04z-10z, winds 
speeds are 5 to 10 knots, slightly higher for coastal terminals. 

Saturday... Moderate Confidence. 

VFR to start, then lowering to MVFR from south to north, along with 
showery rain, mainly after 18z/21z. Light north wind becomes east at 
5 to 10 knots. 

KBOS Terminal... Moderate Confidence. 

MVFR to IFR visibility developing tonight, potential for dense fog 
and IFR ceilings 08z to 13z. 

KBDL Terminal... Moderate Confidence.

MVFR to IFR visibility developing tonight, potential for dense fog 
and IFR ceilings 09z to 14z. 

Outlook /Saturday Night through Tuesday/...

Saturday Night: Mainly IFR, with areas MVFR possible. RA,
chance FZRA.

Sunday: Mainly VFR, with areas IFR possible. Breezy. Chance RA,
chance FZRA.

Sunday Night: VFR. Windy with local gusts up to 30 kt. Chance
RA, slight chance SN.

Monday: VFR. Windy with local gusts up to 30 kt. 

Monday Night through Tuesday: VFR. Breezy. 

&&

.MARINE...
Forecaster Confidence Levels...

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

Today through Saturday... High Confidence. 

Winds increases from the south on today as a warm front lifts over 
the region. Strongest gusts are over the outer ocean waters, 20 to 
25 knots this afternoon, then 25 to 30 knots overnight. Seas are 
increasing this afternoon and tonight 4 to 6 feet, localized areas 
of 7 feet on the outermost southern waters. Showery rain overnight, 
not expected to be at all impactful. Saturday morning winds go light 
and flip to the east as a quasi-stationary front lifts from the 
south to the north, rain accompanies this front as well during the 
early to midafternoon. 

Outlook /Saturday Night through Tuesday/...

Saturday Night: Winds less than 25 kt. Local rough seas. Rain. 

Sunday: Winds less than 25 kt. Areas of rough seas. Rain
likely. 

Sunday Night: Strong winds with gusts up to 40 kt. Areas of
rough seas. Chance of rain, slight chance of snow. 

Monday: Strong winds with gusts up to 35 kt. Areas of rough
seas. 

Monday Night through Tuesday: Low risk for Small Craft Advisory
winds with gusts up to 25 kt. Local rough seas. 

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory from 7 PM this evening to 3 AM EST 
     Saturday for ANZ235-237.
     Small Craft Advisory from 7 PM this evening to 7 AM EST 
     Saturday for ANZ250-254>256.

&&

$$

DISCUSSION...KP/FT
AVIATION...Dooley/Mensch
MARINE...Dooley/Mensch

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