Lexington Weather

Current Conditions [‒] Current Conditions [+]

67.3°F Warmer than last hour.

19.6°C

Comfortable

Clear

This Afternoon: Hi 72 °F

Tonight: Lo 58 °F

Dew Point: 56.8°F Increased 1.6°F since last hour .

Humidity: 69% Decreased 9.0% since last hour.

Air Quality Index: 36

Good

(Fine Particles)

Barometer: 29.81 in Falling 0.04 inHg/hr

1009 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.01 in

Rain Sunday: 0.01 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: 1 mph

Gusts: 8 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

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

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Mon Apr 13, 2026 1:12pm EDT

This Afternoon:

Chance Rain Showers

Hi 72 °F

A chance of rain showers after 2pm. Partly sunny, with a high near 72. Southwest wind around 14 mph, with gusts as high as 33 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Tonight:

Slight Chance Rain Showers then Mostly Clear

Lo 58 °F

A slight chance of rain showers before 7pm. Mostly clear, with a low around 58. West wind 6 to 12 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

Tuesday:

Mostly Sunny

Hi 78 °F

Mostly sunny, with a high near 78. Southwest wind 3 to 9 mph. New rainfall amounts less than a tenth of an inch possible.

Tuesday Night:

Chance Showers And T-Storms

Lo 61 °F

Tuesday Night: Chance Showers And Thunderstorms

A slight chance of rain showers between 7pm and 8pm, then a chance of showers and thunderstorms between 8pm and 3am. Mostly cloudy, with a low around 61. Southwest wind 6 to 9 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

Wednesday:

Partly Sunny then Chance Showers And T-Storms

Hi 82 °F

Wednesday: Partly Sunny then Chance Showers And Thunderstorms

A chance of rain showers between 2pm and 5pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 82. West wind 5 to 8 mph. Chance of precipitation is 40%.

Wednesday Night:

Chance Showers And T-Storms

Lo 56 °F

Wednesday Night: Chance Showers And Thunderstorms

A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Northwest wind 3 to 7 mph. Chance of precipitation is 50%.

Thursday:

Chance Rain Showers

Hi 72 °F

A chance of rain showers. Mostly cloudy, with a high near 72. East wind 3 to 8 mph. Chance of precipitation is 40%.

Thursday Night:

Chance Rain Showers

Lo 56 °F

A chance of rain showers. Mostly cloudy, with a low around 56. South wind around 7 mph. Chance of precipitation is 30%.

Friday:

Chance Rain Showers

Hi 75 °F

A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 75. West wind around 7 mph. Chance of precipitation is 40%.

Friday Night:

Chance Showers And T-Storms then Mostly Cloudy

Lo 51 °F

Friday Night: Chance Showers And Thunderstorms then Mostly Cloudy

A chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 51. Northeast wind around 6 mph. Chance of precipitation is 40%.

Saturday:

Mostly Cloudy

Hi 62 °F

Mostly cloudy, with a high near 62. East wind 5 to 8 mph.

Saturday Night:

Chance Rain Showers

Lo 50 °F

A chance of rain showers after 10pm. Mostly cloudy, with a low around 50. Southeast wind around 7 mph. Chance of precipitation is 30%.

Sunday:

Chance Rain Showers

Hi 70 °F

A chance of rain showers. Mostly cloudy, with a high near 70. South wind 6 to 10 mph. Chance of precipitation is 50%.

Sunday Night:

Chance Rain Showers

Lo 40 °F

A chance of rain showers. Mostly cloudy, with a low around 40. West wind around 10 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 2pm through Wed 1am

Issued by:
National Weather Service Boston / Norton, MA
Updated Mon Apr 13, 2026 1:12pm EDT

2:00pm

Slight Chance Rain Showers

70°F
Dew Pt 53°F
Wind from SW

SW 14 mph
Precip: 15%

3:00pm

Slight Chance Rain Showers

72°F
Dew Pt 53°F
Wind from SW

SW 14 mph
Precip: 15%

4:00pm

Slight Chance Rain Showers

70°F
Dew Pt 52°F
Wind from SW

SW 14 mph
Precip: 17%

5:00pm

Chance Rain Showers

72°F
Dew Pt 53°F
Wind from SW

SW 13 mph
Precip: 25%
Rain: 0.01 in

6:00pm

Slight Chance Rain Showers

70°F
Dew Pt 53°F
Wind from W

W 12 mph
Precip: 17%

7:00pm

Partly Cloudy

69°F
Dew Pt 54°F
Wind from W

W 10 mph
Precip: 7%

8:00pm

Partly Cloudy

68°F
Dew Pt 55°F
Wind from W

W 10 mph
Precip: 5%

9:00pm

Mostly Clear

66°F
Dew Pt 55°F
Wind from SW

SW 9 mph
Precip: 5%

10:00pm

Mostly Clear

65°F
Dew Pt 55°F
Wind from W

W 8 mph
Precip: 3%

11:00pm

Mostly Clear

65°F
Dew Pt 56°F
Wind from W

W 8 mph
Precip: 1%

Tue
12:00am

Mostly Clear

64°F
Dew Pt 55°F
Wind from W

W 7 mph
Precip: 0%

Tue
1:00am

Mostly Clear

63°F
Dew Pt 56°F
Wind from W

W 7 mph
Precip: 0%

Tue
2:00am

Mostly Clear

62°F
Dew Pt 56°F
Wind from W

W 7 mph
Precip: 0%

Tue
3:00am

Mostly Clear

62°F
Dew Pt 55°F
Wind from W

W 6 mph
Precip: 0%

Tue
4:00am

Mostly Clear

60°F
Dew Pt 55°F
Wind from W

W 6 mph
Precip: 0%

Tue
5:00am

Partly Cloudy

60°F
Dew Pt 54°F
Wind from W

W 6 mph
Precip: 0%

Tue
6:00am

Mostly Sunny

60°F
Dew Pt 54°F
Wind from W

W 5 mph
Precip: 0%

Tue
7:00am

Mostly Sunny

58°F
Dew Pt 54°F
Wind from W

W 5 mph
Precip: 0%

Tue
8:00am

Sunny

60°F
Dew Pt 54°F
Wind from NW

NW 3 mph
Precip: 0%

Tue
9:00am

Mostly Sunny

62°F
Dew Pt 54°F
Wind from NW

NW 3 mph
Precip: 0%

Tue
10:00am

Mostly Sunny

67°F
Dew Pt 55°F
Wind from NW

NW 3 mph
Precip: 0%

Tue
11:00am

Sunny

69°F
Dew Pt 54°F
Wind from S

S 3 mph
Precip: 0%

Tue
12:00pm

Sunny

72°F
Dew Pt 53°F
Wind from S

S 6 mph
Precip: 0%

Tue
1:00pm

Mostly Sunny

75°F
Dew Pt 53°F
Wind from S

S 6 mph
Precip: 1%

Tue
2:00pm

Mostly Sunny

76°F
Dew Pt 53°F
Wind from SE

SE 8 mph
Precip: 3%
Rain: 0.01 in

Tue
3:00pm

Mostly Sunny

76°F
Dew Pt 53°F
Wind from SE

SE 8 mph
Precip: 9%

Tue
4:00pm

Mostly Sunny

76°F
Dew Pt 53°F
Wind from S

S 9 mph
Precip: 10%

Tue
5:00pm

Mostly Sunny

75°F
Dew Pt 54°F
Wind from S

S 9 mph
Precip: 9%

Tue
6:00pm

Mostly Cloudy

73°F
Dew Pt 55°F
Wind from S

S 9 mph
Precip: 14%

Tue
7:00pm

Slight Chance Rain Showers

72°F
Dew Pt 56°F
Wind from S

S 9 mph
Precip: 24%
Rain: 0.01 in

Tue
8:00pm

Chance Showers And Thunderstorms

67°F
Dew Pt 58°F
Wind from S

S 8 mph
Precip: 37%
Rain: 0.01 in

Tue
9:00pm

Chance Showers And Thunderstorms

66°F
Dew Pt 58°F
Wind from SW

SW 8 mph
Precip: 37%
Rain: 0.01 in

Tue
10:00pm

Chance Showers And Thunderstorms

65°F
Dew Pt 58°F
Wind from SW

SW 8 mph
Precip: 37%
Rain: 0.01 in

Tue
11:00pm

Chance Rain Showers

65°F
Dew Pt 57°F
Wind from SW

SW 7 mph
Precip: 37%
Rain: 0.01 in

Wed
12:00am

Chance Rain Showers

64°F
Dew Pt 57°F
Wind from SW

SW 7 mph
Precip: 31%
Rain: 0.01 in

Wed
1:00am

Chance Rain Showers

63°F
Dew Pt 57°F
Wind from SW

SW 7 mph
Precip: 26%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 131725
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
125 PM EDT Mon Apr 13 2026

.WHAT HAS CHANGED...

No significant changes.

&&

.KEY MESSAGES...

- Summerlike warmth Tue and Wed away from the coast with scattered
  thunderstorms and a low risk of severe weather.

- Backdoor front may bring cooler temperatures Thu-Sat, especially
  in eastern MA, but uncertainty is high in exactly where it ends up.

- More seasonable temperatures early next week.

&&

.DISCUSSION...

KEY MESSAGE 1...Summerlike warmth Tue and Wed away from the coast 
with scattered thunderstorms and a low risk of severe weather. 

Confidence remains high in summerlike warmth Tue and Wed away from 
both coasts as a strong upper level ridge builds over region from 
Gulf. Highs both days should easily reach lower 80s inland while 
onshore flow keeps immediate coastal areas in 50s to around 60. We 
also need to watch a backdoor front lurking close to northeast MA 
which could bring cooler temperatures there as well, perhaps into 
the 40s or lower 50s, but right now it seems like that front 
should stay to the north until sometime Wed night or Thu.

One thing we are monitoring is the potential for severe storms 
during afternoon and evening both Tue and Wed, mainly from 2 PM to 
10 PM. Trough axis near eastern Great Lakes should provide 
sufficient lift to generate scattered showers and thunderstorms to 
our west both days, and some of this activity could survive the trip 
into interior southern New England given warm airmass in place and 
more importantly strong westerly flow aloft.

Tue actually looks to be the more interesting day with greatest 
potential for severe storms roughly along and west of I-91. Guidance 
shows decent instability (1000-1500 J/kg) Tue afternoon along with 
rather impressive mid level lapse rates (6-7 C/km) that we don't see 
too often here and sufficient 0-6km shear of 35-40kt. This may be 
enough to bring storms into southern New England during the 
afternoon and evening with localized wind damage and hail being the 
main threats. Note both 3km NAM and RRFS are fairly aggressive in 
depicting a small line of storms moving SE across interior Tue 
afternoon, though HREF updraft helicities are focused more in 
western New England and lightning probabilities are in that area as 
well. However, CSU machine learning guidance does highlight much of 
interior southern New England with a low severe potential.

Environment still looks favorable for thunderstorms on Wed though 
several of the high-res models don't show much in way of activity. 
CSU and SPC HREF expand the low severe risk into more of southern 
New England, with guidance showing decent instability across more of 
southern New England (focused north and west of I-95 in CT, RI, and 
MA) with continued strong 0-6km shear (40-50kt) and better low level 
moisture (dewpoints into lower 60s). Mid level lapse rates are more 
marginal however (5-6 C/km) but that could be overcome with 
sufficient instability. While overall severe threat remains low (and 
higher to west of New England) we can't rule out a few storms 
capable of producing localized wind damage or hail. 


KEY MESSAGE 2...Backdoor front may bring cooler temperatures Thu-
Sat, especially in eastern MA, but uncertainty is high in exactly 
where is ends up.

Forecast becomes more uncertain later this week as we deal with 
another backdoor front potentially dropping south across New 
England. Details will need to be worked out regarding how far south 
and exactly how quickly the front will be able to push southward.
 
Typically these fronts end up somewhere from central MA into RI, 
with summerlike temperatures continuing to its south (Hartford) and 
much cooler temperatures to the north and east. For now we are 
basing forecast on a model blend which helps iron out some of the 
uncertainty, but getting more into time window for higher resolution 
models will help refine forecast in coming days. Certainly potential 
for big temperature busts this far out in time.


KEY MESSAGE 3...More seasonable temperatures early next week.

A stronger cold front is expected to cross region sometime Sun, 
accompanied by some showers. Much cooler airmass follows behind 
front early next week with temperatures returning to more typical 
levels for mid April, generally in 50s to around 60.

&&

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

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

18z TAF Update: High confidence.

MVFR ceilings slowly improve to VFR this afternoon along with a few 
widely scattered showers. Exception is near Cape Cod and Islands 
where IFR conditions are more likely and will persist through late 
tonight or early Tue morning. Main concern into the evening is 
strong SW winds, gusting to 25-35kt along with LLWS due to 020 winds 
230/50-60kt.

VFR Tue with lighter S/SW winds and coastal sea breezes. Scattered 
showers and thunderstorms are possible during the afternoon and 
evening, especially across interior southern New England. 

KBOS Terminal...High confidence in TAF.

KBDL Terminal...High confidence in TAF.

Outlook /Wednesday through Saturday/...

Wednesday: VFR. Breezy. Chance SHRA, slight chance TSRA.

Wednesday Night: VFR. Chance SHRA, slight chance TSRA.

Thursday: VFR. Chance SHRA.

Thursday Night: VFR. Slight chance SHRA.

Friday: VFR. Chance SHRA, slight chance TSRA.

Friday Night: Mainly VFR, with local MVFR possible. Slight
chance SHRA.

Saturday: Mainly VFR, with areas MVFR possible. 

&&

.MARINE...
Forecaster Confidence Levels...

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

High confidence through the end of the week.

Fairly strong low level jet will bring frequent 30kt gusts to the 
waters through the evening with some 35kt gusts likely around Cape 
Cod and Islands. Maintaining current headlines of SCA and Gale 
Warnings as a result.

Winds and seas gradually diminish tonight and especially Tue and Wed 
when local sea breezes are expected near shore. 

The other concern is for areas of fog developing this afternoon and 
persisting early tonight on south coastal waters due to mild SW 
winds over colder ocean waters.

Outlook /Wednesday through Saturday/...

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

Wednesday Night: Winds less than 25 kt. Seas locally
approaching 5 ft. Chance of rain showers, slight chance of
thunderstorms. 

Thursday through Friday: Winds less than 25 kt. Seas locally
approaching 5 ft. Slight chance of rain showers. 

Friday Night: Winds less than 25 kt. Slight chance of rain
showers. 

Saturday: Winds less than 25 kt. 

&&

.CLIMATE...

Upcoming record highs:

Tue 4/14
Boston 83 in 2023
Hartford 96 in 2023
Providence 87 in 2023
Worcester 90 in 2023

Wed 4/15
Boston 82 in 1896
Hartford 88 in 1941
Providence 82 in 1938
Worcester 85 in 1941

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 8 PM EDT this evening for ANZ230-
     236.
     Gale Warning until 6 PM EDT this evening for ANZ231>234.
     Small Craft Advisory until 11 AM EDT Tuesday for ANZ235-237.
     Small Craft Advisory until 2 AM EDT Tuesday for ANZ250-251.
     Small Craft Advisory until 2 PM EDT Tuesday for ANZ254>256.

&&

$$

DISCUSSION...JWD
AVIATION...JWD
MARINE...JWD
CLIMATE...JWD

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