Lexington Weather

Current Conditions [‒] Current Conditions [+]

41.5°F Colder than last hour.

5.3°C

Chilly

Clear

This Afternoon: Hi 40 °F

Tonight: Lo 15 °F

Dew Point: 22.8°F Decreased 0.4°F since last hour.

Humidity: 47% Increased 1.0% since last hour.

Air Quality Index: 38

Good

(Fine Particles)

Barometer: 29.79 in S

1009 mb

Snow Today: Trace

Snow Wednesday: 0.5 in

February: 19.0 in

Winter: 48.5 in

Depth: 16.0 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: Calm

Gusts: 0 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

Expected Snow [‒] Expected Snow [+]

Tap Click image to go to NWS winter weather page

For Lexington, 0" expected.

Forecast [‒] Forecast [+]

Daily Forecast
Hourly Forecast

NWS Weather Forecast -
This Afternoon, Tonight, & Friday through Wednesday Night

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Thu Feb 26, 2026 1:16pm EST

This Afternoon:

Partly Sunny

Hi 40 °F

Partly sunny, with a high near 40. West wind around 7 mph.

Tonight:

Partly Cloudy

Lo 15 °F

Partly cloudy, with a low around 15. Northwest wind around 6 mph.

Friday:

Sunny

Hi 39 °F

Sunny, with a high near 39. West wind 2 to 6 mph.

Friday Night:

Mostly Clear

Lo 27 °F

Mostly clear, with a low around 27. South wind around 6 mph.

Saturday:

Patchy Fog then Sunny

Hi 47 °F

Patchy fog before 9am. Sunny, with a high near 47. Southwest wind 6 to 9 mph.

Saturday Night:

Partly Cloudy then Slight Chance Light Snow

Lo 28 °F

A slight chance of snow after 5am. Partly cloudy, with a low around 28. West wind around 6 mph. Chance of precipitation is 20%.

Sunday:

Light Snow Likely

Hi 34 °F

Snow likely. Partly sunny, with a high near 34. Northwest wind 6 to 9 mph. Chance of precipitation is 60%. New snow accumulation of less than half an inch possible.

Sunday Night:

Mostly Clear

Lo 10 °F

Mostly clear, with a low around 10. Northwest wind around 8 mph.

Monday:

Partly Sunny

Hi 26 °F

Partly sunny, with a high near 26. Northwest wind around 6 mph.

Monday Night:

Partly Cloudy

Lo 12 °F

Partly cloudy, with a low around 12. West wind around 5 mph.

Tuesday:

Mostly Sunny then Slight Chance Light Snow

Hi 35 °F

A slight chance of snow after 5pm. Mostly sunny, with a high near 35. Southwest wind 5 to 8 mph.

Tuesday Night:

Chance Light Snow

Lo 26 °F

A chance of snow. Mostly cloudy, with a low around 26. Southwest wind around 7 mph. Chance of precipitation is 40%.

Wednesday:

Chance Light Snow then Chance Light Rain

Hi 45 °F

A chance of snow before 8am, then a chance of rain. Partly sunny, with a high near 45. West wind around 8 mph. Chance of precipitation is 30%.

Wednesday Night:

Chance Light Snow

Lo 29 °F

A slight chance of rain before 10pm, then a chance of snow. Mostly cloudy, with a low around 29. West wind around 7 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 3pm through Sat 2am

Issued by:
National Weather Service Boston / Norton, MA
Updated Thu Feb 26, 2026 1:16pm EST

3:00pm

Partly Sunny

38°F
Dew Pt 24°F
Wind Chill: 33°F
Wind from W

W 7 mph
Precip: 1%

4:00pm

Mostly Cloudy

37°F
Dew Pt 24°F
Wind Chill: 32°F
Wind from W

W 6 mph
Precip: 1%

5:00pm

Partly Sunny

35°F
Dew Pt 24°F
Wind Chill: 31°F
Wind from W

W 5 mph
Precip: 1%

6:00pm

Mostly Cloudy

33°F
Dew Pt 23°F
Wind Chill: 29°F
Wind from W

W 5 mph
Precip: 2%

7:00pm

Partly Cloudy

31°F
Dew Pt 22°F
Wind Chill: 26°F
Wind from W

W 5 mph
Precip: 0%

8:00pm

Partly Cloudy

29°F
Dew Pt 20°F
Wind Chill: 23°F
Wind from W

W 6 mph
Precip: 1%

9:00pm

Mostly Cloudy

28°F
Dew Pt 18°F
Wind Chill: 23°F
Wind from NW

NW 5 mph
Precip: 0%

10:00pm

Mostly Cloudy

26°F
Dew Pt 17°F
Wind Chill: 20°F
Wind from NW

NW 5 mph
Precip: 0%

11:00pm

Mostly Clear

25°F
Dew Pt 16°F
Wind Chill: 19°F
Wind from NW

NW 5 mph
Precip: 0%

Fri
12:00am

Mostly Clear

23°F
Dew Pt 15°F
Wind Chill: 17°F
Wind from NW

NW 5 mph
Precip: 0%

Fri
1:00am

Mostly Clear

22°F
Dew Pt 14°F
Wind Chill: 16°F
Wind from NW

NW 5 mph
Precip: 0%

Fri
2:00am

Mostly Clear

20°F
Dew Pt 14°F
Wind Chill: 13°F
Wind from NW

NW 5 mph
Precip: 0%

Fri
3:00am

Mostly Clear

18°F
Dew Pt 13°F
Wind Chill: 11°F
Wind from NW

NW 5 mph
Precip: 0%

Fri
4:00am

Mostly Clear

17°F
Dew Pt 12°F
Wind Chill: 10°F
Wind from NW

NW 5 mph
Precip: 0%

Fri
5:00am

Mostly Clear

16°F
Dew Pt 11°F
Wind Chill: 10°F
Wind from NW

NW 3 mph
Precip: 0%

Fri
6:00am

Sunny

15°F
Dew Pt 11°F
Wind from NW

NW 2 mph
Precip: 0%

Fri
7:00am

Sunny

15°F
Dew Pt 11°F
Wind from W

W 2 mph
Precip: 0%

Fri
8:00am

Sunny

18°F
Dew Pt 14°F
Wind from NW

NW 2 mph
Precip: 0%

Fri
9:00am

Sunny

24°F
Dew Pt 16°F
Wind from W

W 2 mph
Precip: 0%

Fri
10:00am

Sunny

28°F
Dew Pt 18°F
Wind from SW

SW 2 mph
Precip: 0%

Fri
11:00am

Sunny

32°F
Dew Pt 19°F
Wind Chill: 29°F
Wind from SW

SW 3 mph
Precip: 0%

Fri
12:00pm

Sunny

34°F
Dew Pt 21°F
Wind Chill: 30°F
Wind from SW

SW 5 mph
Precip: 0%

Fri
1:00pm

Sunny

36°F
Dew Pt 22°F
Wind Chill: 31°F
Wind from S

S 6 mph
Precip: 0%

Fri
2:00pm

Sunny

37°F
Dew Pt 24°F
Wind Chill: 32°F
Wind from S

S 6 mph
Precip: 0%

Fri
3:00pm

Sunny

39°F
Dew Pt 25°F
Wind Chill: 35°F
Wind from S

S 6 mph
Precip: 0%

Fri
4:00pm

Sunny

38°F
Dew Pt 26°F
Wind Chill: 34°F
Wind from S

S 6 mph
Precip: 0%

Fri
5:00pm

Sunny

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

S 6 mph
Precip: 0%

Fri
6:00pm

Mostly Clear

35°F
Dew Pt 25°F
Wind Chill: 30°F
Wind from S

S 6 mph
Precip: 0%

Fri
7:00pm

Mostly Clear

34°F
Dew Pt 25°F
Wind Chill: 29°F
Wind from S

S 6 mph
Precip: 0%

Fri
8:00pm

Mostly Clear

31°F
Dew Pt 25°F
Wind Chill: 26°F
Wind from S

S 6 mph
Precip: 0%

Fri
9:00pm

Mostly Clear

30°F
Dew Pt 24°F
Wind Chill: 24°F
Wind from S

S 6 mph
Precip: 0%

Fri
10:00pm

Mostly Clear

29°F
Dew Pt 24°F
Wind Chill: 24°F
Wind from S

S 6 mph
Precip: 0%

Fri
11:00pm

Mostly Clear

29°F
Dew Pt 24°F
Wind Chill: 23°F
Wind from S

S 6 mph
Precip: 0%

Sat
12:00am

Partly Cloudy

29°F
Dew Pt 24°F
Wind Chill: 23°F
Wind from S

S 6 mph
Precip: 0%

Sat
1:00am

Partly Cloudy

29°F
Dew Pt 24°F
Wind Chill: 23°F
Wind from S

S 6 mph
Precip: 0%

Sat
2:00am

Partly Cloudy

29°F
Dew Pt 24°F
Wind Chill: 23°F
Wind from S

S 6 mph
Precip: 0%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 261940
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
240 PM EST Thu Feb 26 2026

.WHAT HAS CHANGED...
No major changes for the first part of the forecast. Increased 
chance for snowfall on Sunday with minor accumulations possible.
Still looking at a period of much colder temperatures Monday 
into Tuesday.

&&

.KEY MESSAGES...

- Cool tonight and seasonable tomorrow. then warmer Saturday.

- Cold front likely brings a period of accumulating snow Sunday
  afternoon. Front will be followed by significantly colder air
  with temperatures falling to 10-15 degrees below average 
  early next week.

- Unsettled and warmer weather remains possible next week, but
  uncertainty remains high.

&&

.DISCUSSION...
Key Message 1...Cool tonight and seasonable tomorrow, then 
warmer Saturday.

We remain under a weak troughing pattern through the rest of this 
week, which will keep southern New England in more seasonable 
conditions. Lows tonight will be cool, falling into the teens and 
even the single digits up in parts of the interior with radiational 
cooling expected as high pressure moves in. Some localized 
radiational fog is a possibility, but generally, most won't see it 
tonight as it will be quite dry. A weak low pressure will pass well 
offshore, but a low chance for some snow showers over Nantucket 
still exists.

High pressure remains in place for Friday, leading to lighter winds 
that shift more S to SW as the high progresses east. High 
temperatures remain seasonable in the upper 30s to low 40s and sunny 
skies. With the light S flow, warmer, more moist air will filter in; 
925 mb temperatures climb to around 2C-5C Friday evening into 
Saturday. Lows Friday night will only dip into the 20s with some 
spots in the low 30s near the coast. More areas could end up seeing 
some fog Friday night into Saturday morning as dewpoint depressions 
approach 0F as well. High temperatures Saturday could approach the 
50s with this trend continuing and an upper level ridge settled 
aloft.

Key Message 2...Cold front likely brings a period of accumulating 
snow Sunday afternoon. Front will be followed by significantly 
colder air with temperatures falling to 10-15 degrees below average 
early next week.

Model guidance continues to trend stronger with a shortwave passing 
to the NW of the CWA Sunday. A bit of a wetter appearance to the 
PWAT fields with the most recent guidance increasing to between 0.5 
and  0.6 inches.  High temperatures ahead of the front increase to 
the mid 30s along the coastal plain and closer to freezing in the 
interior. These marginal surface temps paired with the late February 
sun angle likely mean that snow will have a difficult time sticking 
to roadways on the coastal plain. Slippery conditions become more 
likely further inland. A very cold airmass settles in behind the 
front Sunday night with 850mb temps falling to between -12 and -15C! 
Low temperatures on Sunday and Monday morning will be in or near the 
single digits, with Mondays highs in the low to mid 20s. Winds will 
be rather calm during this arctic outbreak, keeping the wind chill 
index from dropping below zero. 


Key Message 3...Unsettled and warmer weather remains possible next 
week, but uncertainty remains high.

Temperatures are expected to warm back to more seasonal levels 
Tuesday through the rest of next week, with highs in the upper 30s 
to low 40s. Guidance continues to advertise some kind of overrunning 
event as warm air aloft overspreads lingering low level cold air 
over the Northeast Wednesday. While confidence remains quite low at 
this time, these types of events tend to bring mixed precipitation 
and icing. A strengthening southeast ridge should keep the theme of 
warmer temperatures going through much of next week.

&&

.AVIATION /19Z THURSDAY THROUGH TUESDAY/...
Forecaster Confidence Levels...

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

18z TAF Update...

Rest of Today...High Confidence.

VFR. W winds getting up to 12 kt with occasional gusts to just
under 20 kt for eastern terminals following today's frontal
passage. Winds continue to diminish as the day goes on.

Tonight...High Confidence

VFR with brief periods of MVFR possible in any localized 
radiational fog that develops in the CT Valley and parts of the
coastal plain. Mostly dry overall, but it can't be ruled out 
entirely. Not expected to last very long between 06z-09z. Light 
NW to calm winds.

Tomorrow...High Confidence.

VFR. Light SW winds under 10 knots.

Tomorrow Night...Moderate Confidence.

VFR with areas of MVFR possible in BR over the CT Valley, RI, 
and into NE MA. Light SW winds, becoming calm in some locations.

KBOS Terminal...High confidence

KBDL Terminal...High confidence 

Low chance for radiational BR tonight after midnight.

Outlook /Saturday through Tuesday/...

Saturday: VFR. Breezy. 

Saturday Night: VFR. 

Sunday: Mainly VFR, with local IFR possible. Breezy. Chance SN.

Sunday Night: VFR. Breezy. 

Monday: VFR. Slight chance SN.

Monday Night: VFR. 

Tuesday: VFR. Slight chance SN.

&&

.MARINE...
Forecaster Confidence Levels...

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

Through Friday Night...High confidence.

Winds remain less than 20 kt through tonight aside from
occasional gusts across the outer waters. S to SW winds remain
mostly between 5-10 kt into tomorrow night with the exception of
the outer northernmost waters where winds to 20 kt are possible. Seas
5-6 feet linger across the southern outer waters through Friday
so SCA headlines will remain.

Outlook /Saturday through Tuesday/...

Saturday: Winds less than 25 kt. Seas locally approaching 5 ft.

Saturday Night: Winds less than 25 kt. 

Sunday: Winds less than 25 kt. Seas locally approaching 5 ft.
Chance of snow. 

Sunday Night: Low risk for Small Craft Advisory winds with
gusts up to 25 kt. Seas up to 5 ft. Chance of freezing spray. 

Monday: Winds less than 25 kt. Seas locally approaching 5 ft.
Slight chance of snow. 

Monday Night: Winds less than 25 kt. Slight chance of snow. 

Tuesday: Winds less than 25 kt. Seas locally approaching 5 ft.
Slight chance of rain. 

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 7 PM EST this evening for ANZ235-
     237.
     Small Craft Advisory until 1 AM EST Saturday for ANZ254>256.

&&

$$

DISCUSSION...Hrencecin/FT
AVIATION...Hrencecin
MARINE...Hrencecin/FT

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