Lexington Weather

Current Conditions [‒] Current Conditions [+]

47.8°F

8.8°C

Chilly

Mostly cloudy

This Afternoon: Hi 52 °F

Tonight: Lo 34 °F

Dew Point: 28.6°F Decreased 0.5°F since last hour.

Humidity: 47% Decreased 1.0% since last hour.

Air Quality Index: 31

Good

(Ozone)

Barometer: 29.85 in S

1011 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.00 in

Rain Sunday: 0.10 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: 1 mph

Gusts: 10 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

Expected Snow [‒] Expected Snow [+]

Tap Click image to go to NWS winter weather page

Trace of snow expected in Lexington.

Forecast [‒] Forecast [+]

Daily Forecast
Hourly Forecast

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

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Mon Apr 6, 2026 1:19pm EDT

This Afternoon:

Partly Sunny

Hi 52 °F

Partly sunny, with a high near 52. West wind around 13 mph, with gusts as high as 24 mph.

Tonight:

Partly Cloudy then Slight Chance Snow Showers

Lo 34 °F

A slight chance of snow showers after 5am. Partly cloudy, with a low around 34. West wind 2 to 9 mph, with gusts as high as 21 mph.

Tuesday:

Chance Snow Showers

Hi 48 °F

A chance of snow showers before 10am, then a chance of rain and snow showers. Partly sunny, with a high near 48. West wind 3 to 9 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

Tuesday Night:

Slight Chance Rain Showers then Partly Cloudy

Lo 27 °F

A slight chance of rain showers before 8pm. Partly cloudy, with a low around 27. Northwest wind 5 to 9 mph. Chance of precipitation is 20%.

Wednesday:

Sunny

Hi 49 °F

Sunny, with a high near 49. Northeast wind around 6 mph.

Wednesday Night:

Mostly Clear

Lo 30 °F

Mostly clear, with a low around 30. South wind around 7 mph.

Thursday:

Mostly Sunny

Hi 56 °F

Mostly sunny, with a high near 56. South wind 5 to 10 mph.

Thursday Night:

Partly Cloudy

Lo 38 °F

Partly cloudy, with a low around 38. South wind 5 to 9 mph.

Friday:

Partly Sunny

Hi 66 °F

Partly sunny, with a high near 66. Southwest wind 5 to 10 mph, with gusts as high as 21 mph.

Friday Night:

Slight Chance Rain Showers

Lo 48 °F

A slight chance of rain showers after 9pm. Mostly cloudy, with a low around 48. Southwest wind 6 to 9 mph.

Saturday:

Slight Chance Rain Showers then Mostly Sunny

Hi 68 °F

A slight chance of rain showers before 10am. Mostly sunny, with a high near 68. West wind around 8 mph.

Saturday Night:

Mostly Clear

Lo 42 °F

Mostly clear, with a low around 42. Northwest wind 3 to 7 mph.

Sunday:

Sunny

Hi 62 °F

Sunny, with a high near 62. East wind 3 to 8 mph.

Sunday Night:

Slight Chance Rain Showers

Lo 48 °F

A slight chance of rain showers after 8pm. Partly cloudy, with a low around 48. South wind around 8 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 2pm through Wed 1am

Issued by:
National Weather Service Boston / Norton, MA
Updated Mon Apr 6, 2026 1:19pm EDT

2:00pm

Partly Sunny

49°F
Dew Pt 25°F
Wind Chill: 44°F
Wind from W

W 12 mph
Precip: 1%

3:00pm

Partly Sunny

50°F
Dew Pt 24°F
Wind Chill: 46°F
Wind from W

W 12 mph
Precip: 1%

4:00pm

Partly Sunny

50°F
Dew Pt 24°F
Wind Chill: 46°F
Wind from W

W 13 mph
Precip: 0%

5:00pm

Partly Sunny

51°F
Dew Pt 23°F
Wind from W

W 12 mph
Precip: 0%

6:00pm

Partly Cloudy

49°F
Dew Pt 23°F
Wind Chill: 45°F
Wind from W

W 9 mph
Precip: 0%

7:00pm

Mostly Clear

47°F
Dew Pt 24°F
Wind Chill: 43°F
Wind from W

W 8 mph
Precip: 0%

8:00pm

Mostly Clear

46°F
Dew Pt 24°F
Wind Chill: 43°F
Wind from W

W 6 mph
Precip: 0%

9:00pm

Mostly Clear

41°F
Dew Pt 24°F
Wind Chill: 37°F
Wind from W

W 6 mph
Precip: 0%

10:00pm

Mostly Clear

40°F
Dew Pt 25°F
Wind Chill: 36°F
Wind from W

W 6 mph
Precip: 0%

11:00pm

Mostly Clear

39°F
Dew Pt 24°F
Wind Chill: 36°F
Wind from W

W 5 mph
Precip: 1%

Tue
12:00am

Partly Cloudy

38°F
Dew Pt 25°F
Wind Chill: 36°F
Wind from W

W 3 mph
Precip: 4%

Tue
1:00am

Partly Cloudy

37°F
Dew Pt 24°F
Wind from W

W 2 mph
Precip: 7%

Tue
2:00am

Partly Cloudy

36°F
Dew Pt 24°F
Wind from W

W 2 mph
Precip: 10%

Tue
3:00am

Partly Cloudy

35°F
Dew Pt 25°F
Wind from W

W 2 mph
Precip: 8%

Tue
4:00am

Partly Cloudy

35°F
Dew Pt 25°F
Wind from W

W 2 mph
Precip: 7%

Tue
5:00am

Slight Chance Snow Showers

35°F
Dew Pt 26°F
Wind Chill: 32°F
Wind from W

W 3 mph
Precip: 14%

Tue
6:00am

Chance Snow Showers

34°F
Dew Pt 26°F
Wind Chill: 31°F
Wind from W

W 3 mph
Precip: 19%

Tue
7:00am

Chance Snow Showers

35°F
Dew Pt 27°F
Wind Chill: 32°F
Wind from SW

SW 3 mph
Precip: 23%

Tue
8:00am

Chance Snow Showers

36°F
Dew Pt 27°F
Wind Chill: 32°F
Wind from W

W 3 mph
Precip: 37%

Tue
9:00am

Chance Snow Showers

38°F
Dew Pt 28°F
Wind Chill: 34°F
Wind from W

W 5 mph
Precip: 40%

Tue
10:00am

Chance Rain And Snow Showers

41°F
Dew Pt 29°F
Wind Chill: 37°F
Wind from W

W 6 mph
Precip: 42%

Tue
11:00am

Chance Rain And Snow Showers

43°F
Dew Pt 29°F
Wind Chill: 39°F
Wind from W

W 6 mph
Precip: 44%

Tue
12:00pm

Chance Rain Showers

44°F
Dew Pt 29°F
Wind Chill: 39°F
Wind from W

W 7 mph
Precip: 41%

Tue
1:00pm

Chance Rain Showers

45°F
Dew Pt 29°F
Wind Chill: 40°F
Wind from W

W 7 mph
Precip: 45%

Tue
2:00pm

Chance Rain Showers

46°F
Dew Pt 28°F
Wind Chill: 41°F
Wind from W

W 8 mph
Precip: 45%
Rain: 0.01 in

Tue
3:00pm

Chance Rain Showers

46°F
Dew Pt 26°F
Wind Chill: 41°F
Wind from NW

NW 8 mph
Precip: 40%
Rain: 0.01 in

Tue
4:00pm

Chance Rain Showers

46°F
Dew Pt 25°F
Wind Chill: 41°F
Wind from NW

NW 9 mph
Precip: 35%
Rain: 0.01 in

Tue
5:00pm

Slight Chance Rain Showers

45°F
Dew Pt 23°F
Wind Chill: 40°F
Wind from NW

NW 9 mph
Precip: 30%

Tue
6:00pm

Slight Chance Rain Showers

43°F
Dew Pt 22°F
Wind Chill: 38°F
Wind from NW

NW 8 mph
Precip: 21%

Tue
7:00pm

Slight Chance Rain Showers

41°F
Dew Pt 22°F
Wind Chill: 35°F
Wind from NW

NW 9 mph
Precip: 13%

Tue
8:00pm

Partly Cloudy

39°F
Dew Pt 22°F
Wind Chill: 33°F
Wind from NW

NW 8 mph
Precip: 5%

Tue
9:00pm

Partly Cloudy

37°F
Dew Pt 21°F
Wind Chill: 31°F
Wind from NW

NW 8 mph
Precip: 3%

Tue
10:00pm

Mostly Clear

36°F
Dew Pt 20°F
Wind Chill: 30°F
Wind from NW

NW 7 mph
Precip: 3%

Tue
11:00pm

Mostly Clear

34°F
Dew Pt 19°F
Wind Chill: 28°F
Wind from NW

NW 7 mph
Precip: 3%

Wed
12:00am

Mostly Clear

32°F
Dew Pt 18°F
Wind Chill: 26°F
Wind from NW

NW 7 mph
Precip: 2%

Wed
1:00am

Mostly Clear

31°F
Dew Pt 16°F
Wind Chill: 24°F
Wind from NW

NW 7 mph
Precip: 2%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 061822
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
222 PM EDT Mon Apr 6 2026

.WHAT HAS CHANGED...
No significant changes.

&&

.KEY MESSAGES...

- Mostly sunny, cool and blustery Monday. Could see a few
  rain/snow showers Monday night into Tuesday.

- Later in the week looks to remain mostly dry with temperatures
  on the rise.

&&

.DISCUSSION...
KEY MESSAGE 1...Mostly sunny, cool and blustery Monday. Could 
see a few rain/snow showers Monday night into Tuesday.

A upper-level trough moving through the Great Lakes and into 
New England will bring a cold pool aloft, with 850mb 
temperatures around -5C and 500mb temperatures below -30C. A 
shortwave then moves through, which would help support some 
light snow showers possibly developing and mixing in with rain 
showers, especially over the higher elevation areas. Guidance 
has trended towards a later start, perhaps after midnight/early 
Tuesday morning instead of Monday... though we can't rule out a 
stray shower developing today in the higher elevations. Surface 
temperatures will likely hover near or possibly just below 
freezing Monday night into Tuesday morning, but they're expected
to make a fast recovery later Tuesday morning... into the low 
to mid 40s. A secondary shortwave moves through later Tuesday 
and may allow showers to linger through part of the day, but not
expecting much in the way of rain totals.

KEY MESSAGE 2...Later in the week looks to remain mostly dry with 
temperatures on the rise.

Drier conditions and southwesterly flow are expected to return 
to southern New England as a large high pressure system moves 
into the Mid-Atlantic region Wednesday. Temperatures will 
improve throughout the second half of the week as the upper 
level trough moves off to the east and a warmer airmass advects 
into the region. Expecting highs to rebound into the 50s by 
Thursday and further improve into the 60s by Friday. However, 
some uncertainty remains towards the end of the week as some 
ensemble guidance hints at another backdoor front moving in 
Saturday night into Sunday. High pressure moving east from just 
to our north could encourage onshore flow early Sunday morning 
and possibly continuing through the day before it shifts further
offshore and winds return to SW.

&&

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

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

18 TAF Update...

Today: High confidence.

VFR. WNW winds 10-20 kts and gusts 20-30 kt. Highest gusts for
higher elevations and Cape/Island terminals. 

Tonight: High confidence overall, moderate on possible precip 
chances. 

SCT-OVC cloud decks return overnight, VFR mostly. There is still
uncertainty on the timing and coverage/chances of showers
tonight. There is potential for brief -SHRASN after 06Z with
pockets of brief MVFR possible. Gusts diminish by 01Z with W
winds less than 10 kts. Winds become light and variable after
06Z. 

Tuesday: Moderate confidence.

VFR with periods of MVFR ceilings improving to VFR mid
afternoon/early evening. Scattered, brief -RASN showers Tuesday
AM through early afternoon. Timing and coveraging lower 
confidence. Winds will shift through the day as a surface low 
passes through. Light SE flow to start, eventually shifting to 
NW from west to east in the afternoon. NW winds will trend 
stronger 10-15 kts with gusts around 20 kts. 


Tuesday Night: High confidence. 

VFR conditions. NW winds 8-12 kts, a few gusts up to 20 kts
possible. 

KBOS Terminal...Moderate Confidence in TAF.

Few -RASN showers early after 09Z through 12Z, messaged as a
PROB30 due to uncertainty in model guidance and low coverage of
SH. Probabilities for scattered showers increase more toward
12Z, so included in TAF for -SHRASN through the afternoon.
Showers will likely be brief in nature with MVFR ceilings. SE
winds in the early AM shift to E/ENE by noon, shifting N late 
in afternoon. 

KBDL Terminal...High Confidence in TAF.

Outlook /Tuesday Night through Saturday/...

Wednesday through Wednesday Night: VFR. 

Thursday through Friday: VFR. Breezy. 

Friday Night: VFR. Slight chance SHRA.

Saturday: VFR. 

&&

.MARINE...
Forecaster Confidence Levels...

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

High confidence.

SCAs continue through most of today with seas at or above 5 ft 
across most waters and SW winds gusting 25-30 kts. Guidance has 
lowered on wind speeds tonight into Tuesday morning, so elected
to allow SCAs to expire later this afternoon.

Seas remain below 5 ft through Tuesday, but some northwesterly 
wind gusts may approach SCA levels Tuesday evening across the 
southern waters ahead of an approaching high pressure system.

Outlook /Tuesday Night through Saturday/...

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

Wednesday Night through Thursday Night: Winds less than 25 kt. 

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

Friday Night: Winds less than 25 kt. Seas up to 5 ft. Slight
chance of rain showers. 

Saturday: Winds less than 25 kt. Seas up to 5 ft. 

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 2 PM EDT this afternoon for ANZ250.
     Small Craft Advisory until 8 PM EDT this evening for 
     ANZ254>256.

&&

$$

DISCUSSION...McMinn
AVIATION...Mensch
MARINE...McMinn

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