Lexington, Massachusetts, USA
35.1°F
1.7°C
Cold
Clear
Thanksgiving Day: Hi 45 °F
Tonight: Lo 30 °F
Dew Point:
32.4°F
Humidity: 90%
UV Index: 0.0 None
Barometer:
mb
Rain Rate: 0.00 in/hr
Rain Today: 0.01 in
Rain Wednesday: 0.00 in
Visibility: 10 miles
Wind:
Now: Calm
Avg: Calm
Gusts: 0 mph
Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Thu Nov 27, 2025 5:47am EST
Colder and windier conditions follow behind the cold front for Thanksgiving. Winds then increase on Friday and lessen by Saturday, with scattered flurries at times in interior Southern New England to end the week. Another low pressure passes to our north and west Sunday afternoon and night bringing a period of rain. Cooling down again for Monday as a cold front passes through. Monitoring possible storminess around Tue/Wed.
Mostly Sunny
Hi 45 °F
Mostly sunny, with a high near 45. Southwest wind around 10 mph, with gusts as high as 26 mph.
Mostly Clear
Lo 30 °F
Mostly clear, with a low around 30. Southwest wind around 8 mph, with gusts as high as 22 mph.
Mostly Sunny
Hi 41 °F
Mostly sunny, with a high near 41. Southwest wind 8 to 13 mph, with gusts as high as 37 mph.
Mostly Clear
Lo 29 °F
Mostly clear, with a low around 29. West wind around 12 mph, with gusts as high as 30 mph.
Sunny
Hi 40 °F
Sunny, with a high near 40. West wind 6 to 10 mph, with gusts as high as 22 mph.
Mostly Cloudy
Lo 26 °F
Mostly cloudy, with a low around 26. Southwest wind 1 to 6 mph.
Chance Light Rain
Hi 49 °F
A chance of rain after 11am. Cloudy, with a high near 49. South wind 2 to 9 mph. Chance of precipitation is 50%.
Light Rain Likely
Lo 36 °F
Rain likely. Mostly cloudy, with a low around 36. Southwest wind around 10 mph. Chance of precipitation is 70%.
Chance Light Rain
Hi 44 °F
A chance of rain before 2pm. Partly sunny, with a high near 44. West wind around 9 mph. Chance of precipitation is 40%.
Mostly Cloudy then Slight Chance Light Snow
Lo 25 °F
A slight chance of snow after 5am. Mostly cloudy, with a low around 25. Northwest wind around 7 mph.
Chance Light Snow
Hi 35 °F
A chance of snow before 5pm, then a chance of rain and snow. Mostly cloudy, with a high near 35. North wind around 7 mph. Chance of precipitation is 40%.
Chance Rain And Snow
Lo 25 °F
A chance of rain and snow. Mostly cloudy, with a low around 25. North wind around 6 mph. Chance of precipitation is 40%.
Slight Chance Light Snow then Mostly Sunny
Hi 37 °F
A slight chance of snow before 11am. Mostly sunny, with a high near 37. Northwest wind around 7 mph.
Partly Cloudy
Lo 25 °F
Partly cloudy, with a low around 25. Southwest wind around 6 mph.
Issued by:
National Weather Service Boston / Norton, MA
Updated Thu Nov 27, 2025 5:47am EST

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000
FXUS61 KBOX 271120
AFDBOX
Area Forecast Discussion
National Weather Service Boston/Norton MA
620 AM EST Thu Nov 27 2025
.SYNOPSIS...
Colder and windier conditions follow behind the cold front for
Thanksgiving. Winds then increase on Friday and lessen by Saturday,
with scattered flurries at times in interior Southern New England to
end the week. Another low pressure passes to our north and west
Sunday afternoon and night bringing a period of rain. Cooling down
again for Monday as a cold front passes through. Monitoring possible
storminess around Tue/Wed.
&&
.NEAR TERM /THROUGH TONIGHT/...
Key Messages...
* Colder today and blustery.
Our cold front continues to push through southern New England early
this morning, presently draped from north to south across eastern
MA. This should push offshore in the next few hours with a
significant drying behind it on increasing NW winds. 850mb temps
drop precipitously as a broad mid level trough expands over the
Great Lakes and eventually New England. This all leads to a mostly
sunny but cooler day, with highs in the mid/upper 40s feeling more
like the 30s thanks to winds gusting 25 to 35 mph. Winds will come
down overnight but with only a marginal inversion if any so likely
won't see winds becoming calm.
&&
.SHORT TERM /FRIDAY/...
Key Messages...
* Windier and colder on Friday.
* Scattered show showers/flurries over western/central MA possible.
Winds quickly pick up on Friday after sunrise as the mixing layer
increases in height coincident to the core of a 45kt LLJ moving
overhead. Currently expecting the windiest day of the week with
gusts as high as 45 mph in the high terrain/eastern slopes of the
Berkshires. The core of colder air also moves closer so those high
temperatures drop several degrees, into the upper 30s/low 40s. The
only precipitation to note will be some scattered lake effect
streamers from the Great Lakes that will hold together across NY and
making for some festive flakes with negligible accumulations in
western/central MA during the day.
&&
.LONG TERM /FRIDAY NIGHT THROUGH WEDNESDAY/...
Key Messages...
* Less windy on Saturday.
* Temps warm up significantly Sunday before dropping again first
half of next week.
* Quick hitting light rain Sunday/Sunday night followed by the
potential for a higher impact, potentially wintry storm around
Tuesday/Wednesday but confidence is low.
Cold, cyclonic flow continues overhead on Saturday but the core of
the LLJ moves off so winds, while breezy, will be lighter than on
Friday. One more day of cold temperatures (peaking in the mid
30s/low 40s) before a significant warm up Sunday with the arrival of
a warm front ahead of a low pressure system passing to our north.
This brings with it stratiform rain showers accompanying temps in
the upper 40s to low 50 in the afternoon. Guidance has sped up the
arrival so many will see wet weather on Sunday, but it comes to an
end well before sunrise Monday; not expecting a lot of QPF from this
quick hitting system.
The more interesting system is slated for around Tuesday as the next
deep shortwave digging into the OH valley looks to drag a surface
low center past New England from SW to NE; the biggest question, the
exact track and how precip types subsequently shake out, is still a
long time from being answered at 6 days out. At this point guidance
has all option on the table from a mostly rain event to a near miss
offshore to a snowier solution. For now, ensembles are not enthused.
Stay tuned!
&&
.AVIATION /12Z THURSDAY THROUGH MONDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
12Z update...
Today/Thanksgiving...High Confidence.
VFR. Brief period of lighter WSW winds 12-14z before winds mix
back down by 15Z, then W winds 10-15 kts with gusts 20-30 kts
through remainder of day.
Thursday night...High Confidence.
VFR. SW winds 5-10 kts gusting 15-25 kts.
Friday...High Confidence.
VFR. W winds 10-15 kts. Gusting 30-35 kts.
KBOS Terminal...High confidence in TAF.
KBDL Terminal...High confidence in TAF.
Outlook /Friday Night through Monday/...
Friday Night: VFR. Windy with gusts up to 35 kt.
Saturday: VFR. Breezy.
Saturday Night: VFR.
Sunday: Mainly VFR, with local IFR possible. Breezy. Chance RA.
Sunday Night: Mainly VFR, with areas MVFR possible. Windy with
local gusts up to 30 kt. RA likely.
Monday: VFR. Breezy. Slight chance RA.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Today through Friday... High confidence.
* Small Craft Advisories for all marine zones Thursday.
* Gale Warning for Friday through early Saturday across all waters.
A cold front crosses the waters early this morning clearing fog/low
clouds. Gusts 25-34 kts are possible for a period after the frontal
passage early this morning. Otherwise winds/gusts 20-30 kts for
marine zones today. Seas rising to 6-8ft by the afternoon for the
southern outer waters. This will keep marine zones in SCA criteria
all day. Southern outer waters may briefly by shy of gale winds for
a brief period with the frontal passage early this morning. Gale
Warning is in effect for Friday.
Outlook /Friday Night through Monday/...
Friday Night: Strong winds with gusts up to 40 kt. Rough seas
up to 11 ft.
Saturday: Moderate risk for Small Craft Advisory winds with
gusts up to 30 kt. Local rough seas.
Saturday Night: Winds less than 25 kt.
Sunday: Low risk for Small Craft Advisory winds with gusts up
to 30 kt. Seas locally approaching 5 ft. Chance of rain.
Sunday Night: Strong winds with gusts up to 35 kt. Areas of
rough seas. Rain.
Monday: Winds less than 25 kt. Areas of seas approaching 5 ft.
Chance of rain.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 6 AM EST Friday for ANZ230>237-250-
251-254>256.
Gale Warning from 6 AM to 7 PM EST Friday for ANZ230-236.
Gale Warning from 6 AM Friday to 7 AM EST Saturday for
ANZ231>235-237-250-251-254>256.
&&
$$
SYNOPSIS...BW
NEAR TERM...BW
SHORT TERM...BW
LONG TERM...BW
AVIATION...BW
MARINE...BW
Radar images courtesy Weather Underground / Intellicast.
UV Index forecast high for today: 2 Low
Current (Measured): 0.0 None
Note: Rain measured automatically by weather station. Rain totals do not necessarily include melted frozen precipitation.
For more accurate, manually measured rain data, see the Local Precip Data page.
0.00 in
Rain Rate (/hr):
0.00 in
Rain Last 60 min:
0.01 in
Rain Today:
0.00 in
Wednesday:
0.01 in
November:
1.26 in
2025
1:17pm
36.1°F
High today:
12:00am
25.2°F
Low today:
2:28pm
30.4°F
High Wednesday:
7:11am
16.2°F
Low Wednesday:
12:00am
25.2°F
Low wind chill today:
7:11am
16.2°F
Low wind chill Wednesday:
1:17pm
33.3°F
High dew pt today:
11:56pm
20.7°F
High dew pt Wednesday:
None
Wind gust today:
None
Wind gust Wednesday:
No alerts/warnings active for Southeast Middlesex County.
First Light:
6:11am
Sunrise:
6:39am
Sunset:
5:19pm
Twilight ends:
5:47pm
Daylight length:
10 hours 39 minutes
Phase:
Waxing Crescent (82%)
Moon set:
8:18am
Moon rise:
9:38pm