Lexington Weather

Current Conditions [‒] Current Conditions [+]

57.0°F Warmer than last hour.

13.9°C

Cool

Mostly cloudy

This Afternoon: Hi 65 °F

Tonight: Lo 50 °F

Dew Point: 52.5°F Increased 4.7°F since last hour .

Humidity: 85% Decreased 10.0% since last hour.

Air Quality Index: 22

Good

(Fine Particles)

Barometer: 30.07 in Falling 0.05 inHg/hr

1018 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.04 in

Rain Thursday: 0.40 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: Calm

Gusts: 2 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

NWS Weather Forecast -
This Afternoon, Tonight, & Saturday through Thursday Night

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Fri Apr 3, 2026 1:33pm EDT

This Afternoon:

Patchy Drizzle

Hi 65 °F

Patchy drizzle before 4pm. Mostly cloudy, with a high near 65. Southwest wind around 10 mph, with gusts as high as 22 mph.

Tonight:

Mostly Cloudy

Lo 50 °F

Mostly cloudy. Low around 50, with temperatures rising to around 56 overnight. West wind around 10 mph, with gusts as high as 21 mph.

Saturday:

Mostly Sunny

Hi 59 °F

Mostly sunny. High near 59, with temperatures falling to around 46 in the afternoon. Northeast wind 8 to 13 mph.

Saturday Night:

Chance Rain Showers

Lo 39 °F

A chance of rain showers between 8pm and 2am, then a chance of rain showers and patchy fog. Mostly cloudy, with a low around 39. East wind 6 to 12 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

Sunday:

Rain Showers

Hi 62 °F

Rain showers and patchy fog. Cloudy, with a high near 62. South wind 5 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.

Sunday Night:

Rain Showers then Mostly Cloudy

Lo 38 °F

Rain showers before 9pm. Mostly cloudy, with a low around 38. West wind around 9 mph. Chance of precipitation is 80%.

Monday:

Rain Showers Likely then Sunny

Hi 52 °F

Rain showers likely and patchy fog between 7am and 8am. Sunny, with a high near 52. West wind 9 to 13 mph, with gusts as high as 26 mph.

Monday Night:

Mostly Clear

Lo 34 °F

Mostly clear, with a low around 34. West wind 3 to 10 mph, with gusts as high as 22 mph.

Tuesday:

Slight Chance Snow Showers then Chance Rain Showers

Hi 48 °F

A slight chance of snow showers between 8am and 10am, then a chance of rain showers. Mostly sunny, with a high near 48. West wind 3 to 8 mph. Chance of precipitation is 30%.

Tuesday Night:

Chance Rain And Snow Showers then Mostly Clear

Lo 26 °F

A chance of rain and snow showers before 8pm. Mostly clear, with a low around 26. Northwest wind around 8 mph. Chance of precipitation is 30%.

Wednesday:

Sunny

Hi 49 °F

Sunny, with a high near 49. North wind around 7 mph.

Wednesday Night:

Mostly Clear

Lo 33 °F

Mostly clear, with a low around 33. South wind around 8 mph.

Thursday:

Mostly Sunny

Hi 60 °F

Mostly sunny, with a high near 60. Southwest wind 7 to 13 mph, with gusts as high as 24 mph.

Thursday Night:

Mostly Cloudy

Lo 43 °F

Mostly cloudy, with a low around 43. Southwest wind 8 to 12 mph, with gusts as high as 22 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 2pm through Sun 1am

Issued by:
National Weather Service Boston / Norton, MA
Updated Fri Apr 3, 2026 1:33pm EDT

2:00pm

Patchy Drizzle

56°F
Dew Pt 47°F
Wind from SW

SW 10 mph
Precip: 1%

3:00pm

Patchy Drizzle

60°F
Dew Pt 49°F
Wind from SW

SW 10 mph
Precip: 1%

4:00pm

Mostly Cloudy

62°F
Dew Pt 50°F
Wind from SW

SW 10 mph
Precip: 0%

5:00pm

Mostly Cloudy

63°F
Dew Pt 51°F
Wind from SW

SW 10 mph
Precip: 1%

6:00pm

Mostly Cloudy

64°F
Dew Pt 52°F
Wind from SW

SW 10 mph
Precip: 1%

7:00pm

Mostly Cloudy

61°F
Dew Pt 51°F
Wind from SW

SW 10 mph
Precip: 1%

8:00pm

Mostly Cloudy

60°F
Dew Pt 51°F
Wind from SW

SW 10 mph
Precip: 1%

9:00pm

Mostly Cloudy

57°F
Dew Pt 51°F
Wind from SW

SW 10 mph
Precip: 1%

10:00pm

Mostly Cloudy

58°F
Dew Pt 52°F
Wind from SW

SW 10 mph
Precip: 1%

11:00pm

Mostly Cloudy

58°F
Dew Pt 52°F
Wind from SW

SW 10 mph
Precip: 1%

Sat
12:00am

Mostly Cloudy

58°F
Dew Pt 53°F
Wind from SW

SW 10 mph
Precip: 1%

Sat
1:00am

Mostly Cloudy

59°F
Dew Pt 53°F
Wind from SW

SW 10 mph
Precip: 1%

Sat
2:00am

Partly Cloudy

59°F
Dew Pt 54°F
Wind from W

W 10 mph
Precip: 0%

Sat
3:00am

Mostly Cloudy

59°F
Dew Pt 54°F
Wind from W

W 9 mph
Precip: 0%

Sat
4:00am

Mostly Cloudy

58°F
Dew Pt 53°F
Wind from W

W 8 mph
Precip: 0%

Sat
5:00am

Partly Cloudy

56°F
Dew Pt 52°F
Wind from W

W 8 mph
Precip: 0%

Sat
6:00am

Partly Sunny

54°F
Dew Pt 50°F
Wind from NW

NW 8 mph
Precip: 0%

Sat
7:00am

Mostly Sunny

53°F
Dew Pt 48°F
Wind from NW

NW 8 mph
Precip: 1%

Sat
8:00am

Mostly Sunny

51°F
Dew Pt 46°F
Wind from N

N 8 mph
Precip: 1%

Sat
9:00am

Mostly Sunny

53°F
Dew Pt 44°F
Wind from N

N 8 mph
Precip: 1%

Sat
10:00am

Mostly Sunny

56°F
Dew Pt 44°F
Wind from N

N 8 mph
Precip: 1%

Sat
11:00am

Partly Sunny

58°F
Dew Pt 43°F
Wind from NE

NE 9 mph
Precip: 1%

Sat
12:00pm

Partly Sunny

57°F
Dew Pt 42°F
Wind from NE

NE 10 mph
Precip: 1%

Sat
1:00pm

Partly Sunny

56°F
Dew Pt 39°F
Wind from E

E 12 mph
Precip: 2%

Sat
2:00pm

Partly Sunny

54°F
Dew Pt 36°F
Wind from E

E 12 mph
Precip: 2%

Sat
3:00pm

Mostly Sunny

51°F
Dew Pt 34°F
Wind from E

E 13 mph
Precip: 2%

Sat
4:00pm

Mostly Sunny

49°F
Dew Pt 32°F
Wind Chill: 44°F
Wind from E

E 12 mph
Precip: 3%

Sat
5:00pm

Partly Sunny

46°F
Dew Pt 31°F
Wind Chill: 40°F
Wind from E

E 12 mph
Precip: 3%

Sat
6:00pm

Mostly Cloudy

44°F
Dew Pt 31°F
Wind Chill: 38°F
Wind from E

E 12 mph
Precip: 8%

Sat
7:00pm

Mostly Cloudy

42°F
Dew Pt 31°F
Wind Chill: 36°F
Wind from E

E 10 mph
Precip: 13%

Sat
8:00pm

Slight Chance Rain Showers

41°F
Dew Pt 32°F
Wind Chill: 35°F
Wind from E

E 9 mph
Precip: 18%

Sat
9:00pm

Slight Chance Rain Showers

40°F
Dew Pt 32°F
Wind Chill: 34°F
Wind from E

E 9 mph
Precip: 22%

Sat
10:00pm

Chance Rain Showers

39°F
Dew Pt 33°F
Wind Chill: 34°F
Wind from E

E 8 mph
Precip: 27%

Sat
11:00pm

Chance Rain Showers

39°F
Dew Pt 34°F
Wind Chill: 34°F
Wind from E

E 7 mph
Precip: 31%

Sun
12:00am

Chance Rain Showers

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

E 7 mph
Precip: 34%

Sun
1:00am

Chance Rain Showers

40°F
Dew Pt 35°F
Wind Chill: 35°F
Wind from E

E 7 mph
Precip: 37%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 031207
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
807 AM EDT Fri Apr 3 2026

.WHAT HAS CHANGED...
No significant changes.

&&

.KEY MESSAGES...

- Mild weather returns for today, but another backdoor front 
  brings a return to colder air later Saturday.

- Expecting another round of rain Sunday with the arrival of
  yet another cold front.

- Could see a few rain showers Tuesday, but otherwise expecting
  cooler temperatures and dry weather for the first half of next
  week.

&&

.DISCUSSION...
KEY MESSAGE 1...Mild weather returns for today, but another 
backdoor front brings a return to colder air later Saturday.

The northeast low level flow that has brought the chilly air 
into the region from the Gulf of Maine will be transitioning to 
southwest flow as low pressure moves far north of the region but
pulls a warm front up across the region. Associated with the 
low pressure is a decently strong low level jet (up around 
2000-4000 ft above ground) with 40-50kt of wind. Luckily there 
is a stout inversion just below that level, so it will preclude 
most of those strong winds being able to mix to the surface 
(however gusts of 20-25mph are still expected. Those winds aloft
will also advect in drier air aloft, and that will start to 
erode the inversion from the top. This in turn will allow skies 
to turn partly sunny across much of the interior by the 
afternoon. Temperatures should quickly rise well into the 60s in
those areas. It will be a different weather regime along south 
coastal areas the Cape and Islands as those same milder 
southwest winds will result in low stratus and some fog to form 
as it flows over the still very cold waters. This will keep 
temperatures in these areas to the low 50s, at best. Typical 
spring time weather. Southwest flow weakens on Saturday as high 
pressure to the north starts to ridge southward. This is again a
typical spring pattern that gives us those backdoor cold 
fronts. So as the winds turn to the north and northeast again, 
the cold air over the ocean spreads westward. Thus eastern 
coastal areas probably reach their high temperatures about noon 
and then fall quickly after that. It will take until early 
evening for that colder air to get into the CT River Valley. So 
by mid afternoon Saturday there should be a 25F difference 
between Hartford (mid 60s) and Boston (mid 40s). Stuck with the 
model blend for the temperature forecast which seems reasonable,
but if the cold air comes in later that means the eastern half 
of the area will be warmer than the current forecast. So the 
error bars on this aspect of the forecast are higher than 
normal.

KEY MESSAGE 2...Expecting another round of rain Sunday with the
arrival of yet another cold front.

Heading into Sunday morning, a low pressure system pushes south
of the James Bay and into northern Quebec, with both warm and 
cold fronts extending southward into New England. We'll see a 
short-lived surge of warm, moist air in southwesterly flow with 
the warm front, bringing afternoon high temperatures into the 
upper 50s/low 60s. Model guidance is hinting at a narrow band of
moisture advecting into southern New England with the passage 
of the warm front (PWATs roughly around 1.0") which could bring 
some scattered rain showers early Sunday morning ahead of the 
main event. Expecting more widespread showers as the cold front 
moves through later Sunday, and combined with a 45-60kt LLJ and 
1.25-1.5" PWATs, some brief downpours and rumbles of thunder 
could develop.

KEY MESSAGE 3...Could see a few rain/snow showers Tuesday, but 
otherwise expecting cooler temperatures and dry weather for a 
good portion of next week.

Both ensemble and deterministic model guidance are in good 
agreement that an upper-level trough pushes across the Great 
Lakes and into New England next week, leading to mostly dry 
weather but cooler temperatures. Ensemble guidance is indicating
850mb temperatures could get to below negative 7C Tuesday as a 
shortwave moves through, which would support some snow showers 
mixing in with rain. High temps for the first half of the week 
looks to be in the mid 40s to the lower 50s, but turn milder on 
Thursday with southwest flow developing ahead of our next cold 
front.

&&

.AVIATION /12Z FRIDAY THROUGH TUESDAY/...
Forecaster Confidence Levels...

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

12z TAF Update... 

Today...Moderate Confidence. 

IFR/LIFR this morning with -DZ in a few spots. Confidence is
lower with the exact timing, but should see a general trend
toward improving conditions (ceilings/visby) to VFR this
afternoon (exception of Cape/Island terminals). Most likely
timeframe of improvement to VFR will be 18-21Z, but there is a
low probability for improvements as early as 17Z. Cape/Island
terminals likely stay in LIFR through the day. PVD is on the
cusp, but could see a period of brief improvements mid-late 
afternoon. 

SE winds this AM become SSW this afternoon at 10-15 kts with
occasional gust 18-22 kts. A low level jet pushes in this 
afternoon. Although the inversion slowly weakens during this
time with some mixing (gusts), it is still strong enough to 
warrant a mention of wind shear, especially this evening given
the minimal mixing. Wind shear diminishes early Sat AM. 

Lower ceilings re-develop tonight IFR/LIFR for south coast/Cape
& Islands. MVFR possible for BOS/ORH. Winds transition to NW.
Can't rule out an isolated shower overnight. 

Saturday...High confidence. 

VFR for most. Some lingering MVFR possible for the Cape and
Islands in the morning. Winds swing around to ENE Saturday. ENE
winds in afternoon at 10-15 kts with gusts up to 20 kts. 

KBOS Terminal...Moderate confidence. 

KBDL Terminal...Moderate confidence. 

Outlook /Saturday Night through Tuesday/...

Saturday Night: MVFR/IFR conditions possible. Breezy. Chance
SHRA.

Sunday: Mainly MVFR, with areas IFR possible. Windy with gusts
up to 30 kt. SHRA.

Sunday Night: VFR. Breezy. Slight chance SHRA.

Monday: VFR. Breezy. 

Monday Night: 

Tuesday: Chance SHRA, slight chance SHSN.

&&

.MARINE...
Forecaster Confidence Levels...

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

1AM Friday update. Overall high confidence.

Winds will be turning from easterly early this morning to 
southwest by mid-day, and then start to increase as low pressure
far to the west approaches. All the available guidance suggests
winds will start gusting around 25kt across much of the waters 
by this afternoon. Thus another round of Small Craft Advisories 
will be necessary. These winds will also produce some rough 
seas. Locally dense fog is also expected to develop across the 
waters, especially closer to the Cape and across the Islands and
south coastal areas. This fog should last into early Saturday 
morning. Winds are expected to diminish Friday night and early 
Saturday as high pressure ridges into the area. Another low 
pressure system may produce winds near gale force on Sunday.

Outlook /Saturday Night through Tuesday/...

Saturday Night: Winds less than 25 kt. Seas up to 5 ft. Chance
of rain showers. 

Sunday: Low risk for gale force winds with gusts up to 35 kt.
Rough seas up to 11 ft. Chance of rain showers. 

Sunday Night: Low risk for Small Craft Advisory winds with
gusts up to 25 kt. Areas of rough seas. Chance of rain showers.

Monday: Winds less than 25 kt. Local rough seas. 

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

Tuesday: Winds less than 25 kt. Slight chance of rain showers,
slight chance of snow showers. 

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory from 4 PM this afternoon to 5 AM EDT 
     Saturday for ANZ231>235-237.
     Small Craft Advisory from 2 PM this afternoon to 7 AM EDT 
     Saturday for ANZ250-254>256.

&&

$$

DISCUSSION...McMinn/Nash
AVIATION...McMinn/Mensch/Nash
MARINE...Nash

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