Lexington Weather

Current Conditions [‒] Current Conditions [+]

69.6°F Colder than last hour.

20.9°C

Comfortable

Overcast

This Afternoon: Hi 70 °F

Tonight: Lo 38 °F

Dew Point: 58.6°F Decreased 0.8°F since last hour.

Humidity: 68% Increased 1.0% since last hour.

Air Quality Index: 53

Moderate

(Fine Particles)

Barometer: 29.99 in Rising 0.03 inHg/hr

1016 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.00 in

Rain Tuesday: 0.12 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: Calm

Gusts: 2 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

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

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Wed Apr 1, 2026 1:38pm EDT

This Afternoon:

Chance Rain Showers

Hi 70 °F

A chance of rain showers. Mostly cloudy. High near 70, with temperatures falling to around 58 in the afternoon. North wind around 9 mph. Chance of precipitation is 30%.

Tonight:

Light Rain

Lo 38 °F

A slight chance of rain showers before 7pm, then rain. Mostly cloudy, with a low around 38. Northeast wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.

Thursday:

Light Rain

Hi 40 °F

Rain before 7am, then rain likely and patchy fog. Cloudy, with a high near 40. Northeast wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.

Thursday Night:

Chance Light Rain

Lo 37 °F

A chance of rain. Cloudy, with a low around 37. East wind 3 to 8 mph. Chance of precipitation is 40%.

Friday:

Slight Chance Light Rain then Mostly Cloudy

Hi 64 °F

A slight chance of rain before 9am. Mostly cloudy, with a high near 64. South wind 3 to 10 mph. Chance of precipitation is 20%.

Friday Night:

Mostly Cloudy

Lo 52 °F

Mostly cloudy, with a low around 52. Southwest wind 6 to 10 mph.

Saturday:

Partly Sunny then Slight Chance Rain Showers

Hi 66 °F

A slight chance of rain showers after 4pm. Partly sunny, with a high near 66. North wind 6 to 10 mph.

Saturday Night:

Chance Rain Showers

Lo 41 °F

A chance of rain showers. Cloudy, with a low around 41. Southeast wind 5 to 9 mph. Chance of precipitation is 50%.

Sunday:

Rain Showers Likely

Hi 64 °F

Rain showers likely. Mostly cloudy, with a high near 64. South wind 7 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.

Sunday Night:

Chance Rain Showers

Lo 39 °F

A chance of rain showers. Mostly cloudy, with a low around 39. West wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.

Monday:

Slight Chance Rain Showers then Partly Sunny

Hi 52 °F

A slight chance of rain showers before 7am. Partly sunny, with a high near 52. West wind around 10 mph.

Monday Night:

Partly Cloudy

Lo 34 °F

Partly cloudy, with a low around 34. West wind 5 to 9 mph.

Tuesday:

Slight Chance Snow Showers then Chance Rain Showers

Hi 49 °F

A slight chance of snow showers before 8am, then a chance of rain showers. Mostly sunny, with a high near 49. Northwest wind 5 to 9 mph. Chance of precipitation is 40%.

Tuesday Night:

Chance Rain Showers then Chance Snow Showers

Lo 30 °F

A chance of rain showers before midnight, then a chance of snow showers between midnight and 4am. Partly cloudy, with a low around 30. Northwest wind around 8 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 2pm through Fri 1am

Issued by:
National Weather Service Boston / Norton, MA
Updated Wed Apr 1, 2026 1:38pm EDT

2:00pm

Chance Rain Showers

66°F
Dew Pt 54°F
Wind from N

N 9 mph
Precip: 31%

3:00pm

Chance Rain Showers

62°F
Dew Pt 52°F
Wind from N

N 9 mph
Precip: 28%

4:00pm

Slight Chance Rain Showers

60°F
Dew Pt 49°F
Wind from N

N 9 mph
Precip: 24%

5:00pm

Slight Chance Rain Showers

58°F
Dew Pt 48°F
Wind from NE

NE 8 mph
Precip: 21%

6:00pm

Slight Chance Rain Showers

58°F
Dew Pt 46°F
Wind from NE

NE 8 mph
Precip: 22%

7:00pm

Slight Chance Light Rain

54°F
Dew Pt 44°F
Wind from NE

NE 8 mph
Precip: 22%

8:00pm

Slight Chance Light Rain

52°F
Dew Pt 43°F
Wind from NE

NE 7 mph
Precip: 23%

9:00pm

Chance Light Rain

49°F
Dew Pt 42°F
Wind Chill: 46°F
Wind from NE

NE 7 mph
Precip: 26%

10:00pm

Chance Light Rain

47°F
Dew Pt 41°F
Wind Chill: 43°F
Wind from NE

NE 8 mph
Precip: 30%

11:00pm

Chance Light Rain

46°F
Dew Pt 38°F
Wind Chill: 42°F
Wind from NE

NE 8 mph
Precip: 33%

Thu
12:00am

Chance Light Rain

45°F
Dew Pt 38°F
Wind Chill: 41°F
Wind from NE

NE 8 mph
Precip: 47%

Thu
1:00am

Light Rain Likely

43°F
Dew Pt 37°F
Wind Chill: 38°F
Wind from NE

NE 8 mph
Precip: 62%

Thu
2:00am

Light Rain

42°F
Dew Pt 36°F
Wind Chill: 36°F
Wind from NE

NE 9 mph
Precip: 76%
Rain: 0.03 in

Thu
3:00am

Light Rain

41°F
Dew Pt 36°F
Wind Chill: 35°F
Wind from NE

NE 9 mph
Precip: 77%
Rain: 0.04 in

Thu
4:00am

Light Rain

41°F
Dew Pt 36°F
Wind Chill: 35°F
Wind from NE

NE 9 mph
Precip: 79%
Rain: 0.04 in

Thu
5:00am

Light Rain

39°F
Dew Pt 36°F
Wind Chill: 32°F
Wind from NE

NE 10 mph
Precip: 80%
Rain: 0.04 in

Thu
6:00am

Light Rain

39°F
Dew Pt 36°F
Wind Chill: 32°F
Wind from NE

NE 10 mph
Precip: 77%
Rain: 0.04 in

Thu
7:00am

Light Rain Likely

38°F
Dew Pt 35°F
Wind Chill: 31°F
Wind from NE

NE 10 mph
Precip: 74%
Rain: 0.04 in

Thu
8:00am

Light Rain Likely

38°F
Dew Pt 35°F
Wind Chill: 32°F
Wind from NE

NE 9 mph
Precip: 72%
Rain: 0.03 in

Thu
9:00am

Light Rain Likely

38°F
Dew Pt 35°F
Wind Chill: 31°F
Wind from NE

NE 10 mph
Precip: 58%
Rain: 0.02 in

Thu
10:00am

Chance Light Rain

38°F
Dew Pt 35°F
Wind Chill: 31°F
Wind from NE

NE 10 mph
Precip: 45%
Rain: 0.02 in

Thu
11:00am

Chance Light Rain

38°F
Dew Pt 35°F
Wind Chill: 31°F
Wind from NE

NE 10 mph
Precip: 31%
Rain: 0.01 in

Thu
12:00pm

Chance Light Rain

38°F
Dew Pt 34°F
Wind Chill: 31°F
Wind from NE

NE 10 mph
Precip: 28%
Rain: 0.01 in

Thu
1:00pm

Chance Light Rain

39°F
Dew Pt 34°F
Wind Chill: 32°F
Wind from NE

NE 10 mph
Precip: 26%
Rain: 0.01 in

Thu
2:00pm

Slight Chance Light Rain

39°F
Dew Pt 33°F
Wind Chill: 32°F
Wind from NE

NE 10 mph
Precip: 23%

Thu
3:00pm

Slight Chance Light Rain

39°F
Dew Pt 32°F
Wind Chill: 32°F
Wind from NE

NE 10 mph
Precip: 21%

Thu
4:00pm

Slight Chance Light Rain

38°F
Dew Pt 32°F
Wind Chill: 31°F
Wind from NE

NE 10 mph
Precip: 20%

Thu
5:00pm

Slight Chance Light Rain

38°F
Dew Pt 32°F
Wind Chill: 32°F
Wind from NE

NE 9 mph
Precip: 18%

Thu
6:00pm

Slight Chance Light Rain

38°F
Dew Pt 32°F
Wind Chill: 32°F
Wind from E

E 8 mph
Precip: 22%

Thu
7:00pm

Chance Light Rain

38°F
Dew Pt 32°F
Wind Chill: 32°F
Wind from E

E 8 mph
Precip: 26%

Thu
8:00pm

Chance Light Rain

38°F
Dew Pt 33°F
Wind Chill: 33°F
Wind from E

E 7 mph
Precip: 31%

Thu
9:00pm

Chance Light Rain

38°F
Dew Pt 34°F
Wind Chill: 33°F
Wind from E

E 7 mph
Precip: 31%

Thu
10:00pm

Chance Light Rain

38°F
Dew Pt 34°F
Wind Chill: 33°F
Wind from E

E 7 mph
Precip: 32%

Thu
11:00pm

Chance Light Rain

38°F
Dew Pt 34°F
Wind Chill: 34°F
Wind from E

E 6 mph
Precip: 33%

Fri
12:00am

Chance Light Rain

38°F
Dew Pt 34°F
Wind Chill: 34°F
Wind from E

E 5 mph
Precip: 34%

Fri
1:00am

Chance Light Rain

38°F
Dew Pt 35°F
Wind Chill: 34°F
Wind from E

E 5 mph
Precip: 35%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 011759
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
159 PM EDT Wed Apr 1 2026

.WHAT HAS CHANGED...
No significant changes.

&&

.KEY MESSAGES...

- Much cooler with periods of rain tonight into Thursday.

- Temperature roller coaster continues through next week with 
  continued rain chances through at least Sunday. Drier and cool
  next week. 

&&

.DISCUSSION...
KEY MESSAGE 1...Much cooler with periods of rain tonight into 
Thursday.

Backdoor front has moved into NE MA with wind shift to N-NE and a 
sharp temp drop into the 50s. This front will push south and west 
across SNE through late afternoon with sharply falling temps. 
Scattered showers will be focused south of the MA Pike this 
afternoon and there is a brief window for an isolated t-storm 
across eastern CT-RI and SE MA where marginal instability will
develop.


The front will set up south of New Eng tonight as strong high pres 
builds over the Maritimes. Low level E-NE flow will bring much 
cooler temps tonight into Thu with temps dropping into the 30s late 
tonight with minimal recovery on Thu with highs upper 30s to lower 
40s. Meanwhile SW flow aloft overriding the cool air near the 
surface with deepening moisture in the column and weak surface wave 
tracking along the boundary will bring periods of rain tonight into 
Thu. It looks like the bulk of the rain will be later tonight 
through Thu morning, with some improvement in the afternoon as the 
deeper moisture plume lifts to the north. But still dreary in the 
afternoon with low clouds and patchy drizzle. 925 mb temps drop to 0 
to -2C across northern MA late tonight into Thu so the rain may mix 
with sleet here at times but no impact expected. Rainfall amounts of 
0.25 to 0.50" expected with localized amounts up to an inch. 

Cold front will begin to lift back north as a warm front Thu night 
but remain to the south. Stratus and patchy drizzle and fog will 
continue with temps remaining steady in the 30s. There is a low
risk for localized pockets of freezing drizzle over higher 
elevations near the VT/NH borders where temps may drop close to 
32F.

KEY MESSAGE 2...Temperature roller coaster continues through 
next week with continued rain chances through at least Sunday. 
Drier and cool next week. 

Friday the pattern flips again as high pressure exits to the 
northeast replaced by low pressure crossing northern New England 
Friday and Friday night. This brings the return of warm, moist south 
westerly flow pumping temperatures back up into the 60s (low 50s 
along the south coast thanks to cool onshore flow). A few showers 
are possible on Friday but most will be dry. It's a brief warm up as 
the trailing cold front arrives sometime early Saturday bringing the 
return of colder temperatures and a renewed chance of scattered 
showers as the front stalls. This all then repeats once again on 
Sunday with a brief warm frontal passage followed by a more robust 
cold front accompanying a deeper mid level trough. Still some 
uncertainty on the timing of the heaviest precip, but a later 
Sunday/Sunday night period looks most likely. Moisture parameters 
are better with this round (PWATS over 1.25") and EPS/GEFS ensemble 
guidance indicate a 20-40% chance of rainfall totals AOA 0.5". 
Looking into next week a cooler airmass moves overhead and so while 
we should dry out, a seasonable to cooler than normal stretch looks 
on tap with highs in the 40s and low 50s.

&&

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

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

18z TAF Update...Moderate confidence.

Backdoor front across NE MA will push south across SNE from NE
to SW through 00z. Lowering cigs to MVFR behind the boundary and
eventually to IFR tonight. Scattered showers and possibly a
t-storm will develop across RI and SE MA this afternoon,
transitioning to periods of rain developing across the region 
tonight into Thu morning. IFR-MVFR persists through Thu night 
with rain tapering to patchy drizzle by Thu afternoon. Wind 
shift to NE behind the front through this afternoon with gusts 
to 20-25 kt developing along the coast tonight into Thu. 

KBOS Terminal...Moderate confidence in TAF. Uncertainty revolves
around timing of lowering cigs to MVFR then IFR. 

KBDL Terminal...Moderate confidence in TAF. Uncertainty 
revolves around timing of lowering cigs to MVFR then IFR.

Outlook /Friday through Monday/...

Friday: Mainly VFR, with local IFR possible. Breezy. 

Friday Night: VFR. Breezy. 

Saturday: Mainly VFR, with areas MVFR possible. Breezy. Chance
SHRA.

Saturday Night: Mainly MVFR, with areas IFR possible. Breezy.
Chance SHRA.

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

Sunday Night: Mainly VFR, with areas MVFR possible. Breezy.
Chance SHRA.

Monday: Breezy. 

&&

.MARINE...
Forecaster Confidence Levels...

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

High confidence through Thu night.

SCAs expanded across all waters except Boston Harbor and 
Narragansett Bay tonight into Thu for NE gusts to 25 kt. 
Diminishing E winds Thu night. 

Outlook /Friday through Monday/...

Friday: Low risk for Small Craft Advisory winds with gusts up
to 25 kt. Areas of seas approaching 5 ft. Local visibility 1 to
3 nm.

Friday Night: Moderate risk for Small Craft Advisory winds with
gusts up to 25 kt. Seas up to 5 ft. 

Saturday: Winds less than 25 kt. Areas of seas approaching
5 ft. Slight chance of rain showers. 

Saturday Night: Low risk for Small Craft Advisory winds with
gusts up to 30 kt. Areas of seas approaching 5 ft. Chance of
rain showers. 

Sunday: Strong winds with gusts up to 35 kt. Areas of rough
seas. Chance of rain showers. 

Sunday Night: Low risk for Small Craft Advisory winds with
gusts up to 30 kt. Areas of rough seas. Chance of rain showers.

Monday: Winds less than 25 kt. Local rough seas. Slight chance
of rain showers. 

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory from 2 AM to 8 PM EDT Thursday for ANZ231-
     250-251.
     Small Craft Advisory from 8 PM this evening to 8 PM EDT 
     Thursday for ANZ232>234.
     Small Craft Advisory until 8 PM EDT Thursday for ANZ235-237.
     Small Craft Advisory until 2 AM EDT Friday for ANZ254>256.

&&

$$

DISCUSSION...KJC/BW
AVIATION...KJC
MARINE...KJC

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