Lexington Weather

Lexington, Massachusetts, USA

52°F

4/11/2026 4:51am

Lexington Conditions: Overcast
Temperature: 52.2°F / 11.2°C
Dew Point: 39.6°F
Relative Humidity: 62%
Wind: Calm, 10-min avg: Calm, gust: None
Barometer: 29.97 in Steady
Visibility: 10 miles
Rain Today: 0.00 in

Southeast Middlesex County, MA - Special Weather Statement - Special Weather Statement
- SEE ALL NEARBY ALERTS -

Area Forecast Discussion
for Lexington, MA

        
000
FXUS61 KBOX 110636
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
236 AM EDT Sat Apr 11 2026

.WHAT HAS CHANGED...

No significant changes to the forecast. 

&&

.KEY MESSAGES...

- Dry & seasonable this weekend with highs mainly in the middle 50s 
  to the lower 60s...But cooler upper 40/lower 50s Sunday on the 
  immediate coast with sea breezes. Lows tonight will mainly be in 
  the 30s...But some middle to upper 20s expected in the normally 
  coldest outlying locations.

- Summerlike warmth much of next week. Highs in the 60s to the
  lower 70s Mon. Highs may reach the 70s and even 80s at times
  the rest of the work week...But a lurking backdoor cold front
  may bring noticeably cooler temps for a day or two as well.
  Timing/location of that potential front is uncertain...but
  main risk for this will be in eastern MA. A few brief showers
  possible next week...but mainly dry weather.

&&

.DISCUSSION...

KEY MESSAGE 1...Dry & seasonable this weekend with highs mainly in 
the middle 50s to the lower 60s...But cooler upper 40/lower 50s 
Sunday on the immediate coast with sea breezes. Lows tonight will 
mainly be in the 30s...But some middle to upper 20s expected in the 
normally coldest outlying locations.

Dry and seasonable weather is on tap for today and Sunday with 
seasonable temperatures. Plenty of sunshine will result in high 
temps reaching the middle 50s to the lower 60s today. Large high 
pressure over the eastern Great Lakes and low pressure over the 
Maritimes will result in a modest pressure gradient today...so it 
will be breezy today with northwest wind gusts of 20 to 30 mph. 

High pressure over the Great Lakes will build across our region 
tonight and Sunday. This will result in diminishing wind tonight and 
mainly clear skies...yielding a good night of radiational cooling. 
Lows will mainly be in the 30s...but some middle to upper 20s are 
expected in the normally coldest outlying locations. Much less wind 
on Sunday with departing high pressure and highs mainly in the 50s 
to near 60. However...weak gradient will result in sea breezes along 
parts of the immediate coast holding highs into the upper 40s to the 
lower 50s. 

KEY MESSAGE 2... Summerlike warmth much of next week. Highs in the 
60s to the lower 70s Mon. Highs may reach the 70s and even 80s at 
times the rest of the work week...But a lurking backdoor cold front 
may bring noticeably cooler temps for a day or two as well. 
Timing/location of that potential front is uncertain...but main risk 
for this will be in eastern MA.  A few brief showers possible next 
week...but mainly dry weather persists. 

The ensemble guidance is in excellent agreement in showing an upper 
level ridge of high pressure over the Gulf of Mexico for much of the 
upcoming work week. The result is west to southwest flow aloft and 
well above normal height fields into southern New England. This will 
result in summerlike warmth much of next week...but will need to 
watch for a backdoor cold front lurking nearby especially across 
eastern MA at times. We will explain more below.

A warm front will cross the region Sun night into Mon with a period 
of brief scattered showers possible. Depending on the timing of this 
warm front...expect highs to reach the 60s to the lower 70s on Mon. 
The rest of the work week...the anomalous upper level pattern 
supports high temperatures in the 70s and even 80s at 
times...perhaps challenging records. However...a backdoor cold front 
lurking nearby may result in a day or two of potentially much cooler 
temperatures. Timing/location of this boundary remains 
uncertain...but eastern MA is at the greatest risk for one or two 
much cooler days. This is quite indicative by looking at the box and 
whisker temperature plots among the ensembles. These show tremendous 
spread in high temperatures next week...while the spread decreases 
the further back into the interior you get. 

So in a nutshell...unseasonable summerlike warmth with highs in the 
70s and even 80s at times is likely much of next week. 
However...this may be interrupted for a day or two with a backdoor 
cold front. Greatest risk for this will be across eastern MA...which 
is shown in the extreme spread in the ensemble temperature forecast.

While a few brief showers are possible at times next week...the lack 
of synoptic scale forcing will result in dry weather dominating. 

&&

.AVIATION /06Z SATURDAY THROUGH WEDNESDAY/...

Forecaster Confidence Levels...

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

06z TAF Update...High confidence.

VFR conditions today into Sunday. Winds shift to the NW by daybreak 
and will gust to 25 knots today with perhaps a few gusts near 30 
knots. Northwest winds diminish tonight becoming light/calm and then 
shift to the S-SW on Sunday at 7-13 knots...but we do expect sea breezes 
along parts of the immediate coast. 

KBOS Terminal... High confidence in TAF.

KBDL Terminal... High confidence in TAF.

Outlook /Sunday Night through Wednesday/...

Sunday Night: VFR. Breezy. Chance SHRA.

Monday: VFR. Windy with gusts up to 30 kt. Slight chance SHRA.

Monday Night: VFR. Breezy. Slight chance SHRA.

Tuesday: VFR. 

Tuesday Night: VFR. Chance SHRA.

Wednesday: VFR. Slight chance SHRA, slight chance TSRA.

&&

.MARINE...

Forecaster Confidence Levels...

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

Today through Sunday...High confidence.

We have hoisted small craft headlines for nearshore waters along the 
eastern MA coast today. Good mixing over the land should yield NW 
25+ knot wind gusts today. These winds will diminish tonight as high 
pressure builds over the waters...then shift to the S-SW on Sunday 
as the high departs but remain below small craft advisory 
thresholds. We also have lingering small craft headlines today 
across the outer-waters which should gradually diminish during the 
overnight hours. No marine headlines will be needed during the day 
Sunday.

Outlook /Sunday Night through Wednesday/...

Sunday Night: Low risk for Small Craft Advisory winds with
gusts up to 25 kt. Areas of seas approaching 5 ft. Chance of
rain showers. 

Monday: Strong winds with gusts up to 35 kt. Areas of rough
seas. Slight chance of rain showers. 

Monday Night: Low risk for Small Craft Advisory winds with
local gusts up to 30 kt. Areas of rough seas. Slight chance of
rain showers. 

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

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

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

&&

.CLIMATE...
Since we are potentially looking at our first 80-degree
temperatures of the season early next week, here are some stats
regarding average, earliest, and latest 80-degree temperatures.

Note that Hartford (Bradley) already hit 80 degrees this year
back on March 31.

Boston:
Average May 4, Earliest March 21, 1921, Latest June 16, 1924

Providence:
Average May 4, Earliest March 20, 1945, Latest June 18, 1924

Hartford:
Average April 28, Earliest March 9, 2016, Latest June 15, 1924

Worcester:
Average May 4, Earliest March 15, 1990, Latest June 10, 1997

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory from 7 AM this morning to 6 PM EDT this 
     evening for ANZ230-231-251.
     Small Craft Advisory until 6 AM EDT Sunday for ANZ250-254.
     Small Craft Advisory until 8 PM EDT this evening for ANZ255-
     256.

&&

$$

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