Lexington Weather
Lexington, Massachusetts, USA
- Clear
-
30.7°F / -0.7°C
-
7.0°F
-
36%
- Calm, 10-min avg: Calm, gust: 2 mph
- 10 miles
- 0.0 in
Current Conditions [‒] Current Conditions [+]
30.7°F
-0.7°C
Cold
Clear
This Afternoon: Hi 27 °F
Tonight: Lo 10 °F
Dew Point:
7.0°F
Humidity:
36%
Barometer:
mb
Snow Today: 0.0 in
Snow Sunday: 0.0 in
February: 3.8 in
Winter: 33.3 in
Depth: 13.0 in
Visibility: 10 miles
Wind:
Now: Calm
Avg: Calm
Gusts: 2 mph
Expected Snow [‒] Expected Snow [+]
72-Hour Snowfall Forecast
For Lexington, 3" expected.
Forecast [‒] Forecast [+]
NWS Weather Forecast -
This Afternoon,
Tonight,
&
Tuesday
through
Sunday Night
Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Mon Feb 9, 2026 2:05pm EST
This Afternoon:
Sunny
Hi 27 °F
Sunny, with a high near 27. Northwest wind around 10 mph, with gusts as high as 21 mph.
Tonight:
Mostly Clear
Lo 10 °F
Mostly clear, with a low around 10. Northwest wind 2 to 8 mph.
Tuesday:
Partly Sunny then Chance Light Snow
Hi 33 °F
A chance of snow after 4pm. Partly sunny, with a high near 33. Southwest wind around 5 mph. Chance of precipitation is 30%. New snow accumulation of less than one inch possible.
Tuesday Night:
Snow
Lo 25 °F
Snow. Mostly cloudy, with a low around 25. South wind around 5 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Wednesday:
Chance Light Snow
Hi 36 °F
A chance of snow. Partly sunny, with a high near 36. West wind 3 to 9 mph. Chance of precipitation is 30%.
Wednesday Night:
Slight Chance Light Snow then Mostly Cloudy
Lo 21 °F
A slight chance of snow before 11pm. Mostly cloudy, with a low around 21. Northwest wind around 7 mph. Chance of precipitation is 20%.
Thursday:
Partly Sunny
Hi 33 °F
Partly sunny, with a high near 33. Northwest wind around 9 mph.
Thursday Night:
Partly Cloudy
Lo 15 °F
Partly cloudy, with a low around 15. Northwest wind around 7 mph.
Friday:
Mostly Sunny
Hi 33 °F
Mostly sunny, with a high near 33. Northwest wind around 7 mph.
Friday Night:
Partly Cloudy
Lo 15 °F
Partly cloudy, with a low around 15. West wind around 6 mph.
Saturday:
Mostly Sunny
Hi 34 °F
Mostly sunny, with a high near 34. West wind around 7 mph.
Saturday Night:
Partly Cloudy
Lo 16 °F
Partly cloudy, with a low around 16. West wind around 5 mph.
Sunday:
Partly Sunny then Chance Light Snow
Hi 36 °F
A chance of snow after 1pm. Partly sunny, with a high near 36. Southwest wind around 6 mph. Chance of precipitation is 30%.
Sunday Night:
Chance Light Snow
Lo 25 °F
A chance of snow. Cloudy, with a low around 25. East wind around 8 mph.
NWS Hourly Forecast -
Today 3pm through Wed 2am
Issued by:
National Weather Service Boston / Norton, MA
Updated Mon Feb 9, 2026 2:05pm EST
3:00pm
Dew Pt 9°F
Wind Chill: 17°F
NW 10 mphPrecip: 0%
4:00pm
Dew Pt 10°F
Wind Chill: 17°F
NW 9 mphPrecip: 0%
5:00pm
Dew Pt 8°F
Wind Chill: 17°F
NW 8 mphPrecip: 0%
6:00pm
Dew Pt 7°F
Wind Chill: 13°F
NW 8 mphPrecip: 0%
7:00pm
Dew Pt 7°F
Wind Chill: 11°F
NW 7 mphPrecip: 0%
8:00pm
Dew Pt 6°F
Wind Chill: 8°F
NW 7 mphPrecip: 0%
9:00pm
Dew Pt 5°F
Wind Chill: 7°F
NW 6 mphPrecip: 0%
10:00pm
Dew Pt 4°F
Wind Chill: 6°F
NW 6 mphPrecip: 1%
11:00pm
Dew Pt 3°F
Wind Chill: 5°F
NW 6 mphPrecip: 2%
12:00am
Dew Pt 3°F
Wind Chill: 5°F
NW 5 mphPrecip: 3%
1:00am
Dew Pt 3°F
Wind Chill: 4°F
NW 5 mphPrecip: 3%
2:00am
Dew Pt 2°F
Wind Chill: 5°F
NW 3 mphPrecip: 3%
3:00am
Dew Pt 2°F
Wind Chill: 5°F
NW 3 mphPrecip: 5%
4:00am
Dew Pt 2°F
Wind Chill: 5°F
W 3 mphPrecip: 2%
5:00am
Dew Pt 3°F
W 2 mphPrecip: 2%
6:00am
Dew Pt 3°F
W 2 mphPrecip: 2%
7:00am
Dew Pt 3°F
W 2 mphPrecip: 2%
8:00am
Dew Pt 7°F
W 2 mphPrecip: 2%
9:00am
Dew Pt 10°F
W 2 mphPrecip: 3%
10:00am
Dew Pt 12°F
W 2 mphPrecip: 3%
11:00am
Dew Pt 14°F
Wind Chill: 22°F
SW 3 mphPrecip: 3%
12:00pm
Dew Pt 15°F
Wind Chill: 25°F
SW 3 mphPrecip: 3%
1:00pm
Dew Pt 17°F
Wind Chill: 26°F
S 5 mphPrecip: 3%
2:00pm
Dew Pt 18°F
Wind Chill: 28°F
S 5 mphPrecip: 8%
3:00pm
Dew Pt 20°F
Wind Chill: 28°F
S 5 mphPrecip: 13%
4:00pm
Dew Pt 20°F
Wind Chill: 28°F
S 5 mphPrecip: 18%
Snowfall: 0.1 in
5:00pm
Dew Pt 22°F
Wind Chill: 27°F
S 5 mphPrecip: 30%
Snowfall: 0.4 in
6:00pm
Dew Pt 22°F
Wind Chill: 25°F
S 5 mphPrecip: 43%
Snowfall: 0.5 in
7:00pm
Dew Pt 23°F
Wind Chill: 25°F
S 5 mphPrecip: 55%
Snowfall: 0.2 in
8:00pm
Dew Pt 24°F
Wind Chill: 23°F
S 5 mphPrecip: 62%
Snowfall: 0.2 in
9:00pm
Dew Pt 25°F
Wind Chill: 23°F
S 5 mphPrecip: 68%
Snowfall: 0.2 in
10:00pm
Dew Pt 26°F
Wind Chill: 24°F
S 5 mphPrecip: 75%
Snowfall: 0.2 in
11:00pm
Dew Pt 27°F
Wind Chill: 25°F
S 5 mphPrecip: 64%
Snowfall: 0.2 in
12:00am
Dew Pt 28°F
Wind Chill: 25°F
S 3 mphPrecip: 54%
Snowfall: 0.2 in
1:00am
Dew Pt 28°F
Wind Chill: 25°F
S 3 mphPrecip: 43%
Snowfall: 0.3 in
2:00am
Dew Pt 28°F
Wind Chill: 25°F
SW 3 mphPrecip: 40%
Snowfall: 0.2 in
FORECAST DISCUSSION
Area Forecast Discussion
for Boston / Norton, MA
000
FXUS61 KBOX 091953
AFDBOX
Area Forecast Discussion
National Weather Service Boston/Norton MA
253 PM EST Mon Feb 9 2026
.WHAT HAS CHANGED...
Snowfall amounts continued to increase slightly for late
Tuesday into Tuesday night, mainly across northern and northeast
MA.
&&
.KEY MESSAGES...
- Another cold night tonight, but with less wind.
- A quick moving clipper system will bring a period of
accumulating snow late Tue into Tue night.
- Drier for the second half of the week following Tuesday's
clipper system. More seasonable temperatures make a return.
&&
.DISCUSSION...
Key Message 1...Another cold night tonight, but with less wind.
Ridge of high pressure advecting west to east across New England
tonight. This will support mainly clear conditions and
diminishing winds, combined with a deep snowpack. This will
result in lows in the single digits regionwide. The exception
will be along the immediate coast, Cape and islands, along with
the urban areas where mins will settle in the teens. Not as cold
as previous nights, nonetheless, colder than normal. Also, not
as much of a wind chill factor given the light winds. Minimum
temps were derived from the NBM and MOS datasets. We didn't
want to follow the coldest guidance, as some mid level
cloudiness from time to time overnight by preclude the coldest
temp from verifying. Nevertheless, a chilly/colder than normal
night.
Key message 2...A quick moving clipper system will bring a
period of accumulating snow late Tue into Tue night.
Fairly potent northern stream shortwave moves into northern New
England Tue night...as the parent surface low passes to the
north. First band of warm advection light snow/flurries will
overspread the area 4PM-7PM west to east. Little if any
accumulation will occur with this first round. The
steadier/accumulating snowfall will occur roughly between 7 PM
and midnight. This will be more dynamical driven and will be
accompanied by a 2-4 hour window of moderate snow, supported by
10-15 ubar/s of lift in the DGZ. This strong forcing for ascent
induces a weak secondary low that tries to develop along the
boundary over or near SE MA.
Snow may end as period of rain along the south coast, in
response to modest low level WAA. Elsewhere, snow may end as a
brief period of freezing drizzle, as the DGZ dries out after
midnight. Given all the parameters above, expecting a coating up
to 2 inches of snowfall across CT/RI and southeast MA, possible
followed by a trace of ice before ending. For northern MA, 1-3"
is likely with localized amounts of 4+ in northeast MA,
followed by a trace of ice before ending. If 00z guidance trends
stronger/more qpf, the evening/night shift may issue winter
weather headlines. Stay tuned.
Key Message 3...Drier for the second half of the week following
Tuesday's clipper system. More seasonable temperatures make a return.
As the clipper system continues east Wednesday, some snow
showers may linger in the afternoon and evening hours towards
eastern MA. These could last longer for the outer Cape, but
exact details are still unknown this far out. NW flow returns
as a secondary low that develops offshore circulates and shifts
off to the northeast before winds weaken more heading into
Friday. Behind this whole clipper system, high pressure starts
to build back in over the region for the second half of the week
and drier conditions prevail. With the arctic airmass overhead
gone, a more climatologically normal airmass for this time of
year settles in with 925 mb temperatures back to around -10C to
-5C. Highs make it back to the mid to upper 30s over southern
New England from Wednesday onward, though nighttime lows will
still fall into the teens and low 20s, with some spots in the
interior in the single digits. Though, notably, wind chills will
not be as brutally cold.
&&
.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...No major changes.
This evening and overnight...high confidence.
VFR/dry with gusty WNW winds diminishing after 22z/23z.
Tuesday...high confidence.
VFR and dry to start, then VFR cloud bases with light
snow/flurries during the afternoon. Little if any accumulation.
Tuesday night...moderate confidence.
IFR/LIFR in snow, moderate at times possible across northern MA,
including KBOS. 1-3" snow accums likely, isolated 4+ northeast
MA. Steadiest snow roughly 00z-05z. Snow may end as rain along
the south coast, possibly ending as a period period of -fzdz
elsewhere. Low prob of LLWS 00z Wed - 06z Wed.
Outlook /Wednesday through Saturday/...
Wednesday: Mainly VFR, with local MVFR possible. Breezy. Slight
chance SN.
Wednesday Night: VFR. Slight chance SN.
Thursday: VFR. Breezy.
Thursday Night through Friday Night: VFR.
Saturday:
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
This evening...high confidence.
Gusty WNW winds up to 25 kt diminish with sunset, along with
freezing spray ending.
Tuesday...high confidence.
Light west wind in the morning, becoming SW in the afternoon,
10-15 kt. Light snow/flurries may briefly limit vsby late.
Tuesday night...moderate confidence.
SSW winds 10-15 kt Tue evening, becoming west after midnight.
Snow may lower vsby to 1 mile or less across the northern MA
waters, 1-3 miles elsewhere, possibly ending as rain southern
waters.
Outlook /Wednesday through Saturday/...
Wednesday: Winds less than 25 kt. Areas of seas approaching
5 ft. Slight chance of snow.
Wednesday Night: Winds less than 25 kt. Local rough seas.
Slight chance of snow.
Thursday: Winds less than 25 kt. Areas of seas approaching
5 ft.
Thursday Night: Winds less than 25 kt. Seas locally approaching
5 ft.
Friday through Saturday: Winds less than 25 kt.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 5 PM EST this afternoon for ANZ230.
Small Craft Advisory until 7 PM EST this evening for ANZ231-
232-251.
Small Craft Advisory until 7 AM EST Tuesday for ANZ250-254>256.
&&
$$
DISCUSSION...McMinn/Nocera
AVIATION...McMinn/Nocera
MARINE...McMinn/Nocera
Radar [‒] Radar [+]
Radar images courtesy Weather Underground / Intellicast.
Satellite [‒] Satellite [+]
Satellite images courtesy Weather Underground / Intellicast.
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UV Forecast [‒] UV Forecast [+]
UV Index forecast from the Environmental Protection Agency
UV Index forecast high for today: 2 Low
Current (Estimated): 1 Low
Precipitation [‒] Precipitation [+]
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.
0.0 in
Snow Today:
0.0 in
Snow Sunday:
3.8 in
February total:
33.3 in
Season total:
13.0 in
Snow Depth:
2 snow days in February
28 snow days this season
Daily Extremes [‒] Daily Extremes [+]
2:03pm
31.8°F
High today:
6:46am
8.6°F
Low today:
1:44pm
18.7°F
High Sunday:
5:33am
2.7°F
Low Sunday:
6:50am
-3.8°F
Low wind chill today:
4:40am
-13.4°F
Low wind chill Sunday:
12:25pm
10.9°F
High dew pt today:
1:44pm
3.6°F
High dew pt Sunday:
8:45am
12 mph
Wind gust today:
4:40am
12 mph
Wind gust Sunday:
Alerts / Advisories [‒] Alerts / Advisories [+]
No alerts/warnings active for Southeast Middlesex County.
Sun / Moon [‒] Sun / Moon [+]
First Light:
6:20am
Sunrise:
6:49am
Sunset:
5:09pm
Twilight ends:
5:38pm
Daylight length:
10 hours 20 minutes
Phase:
Last Quarter (47%)
Moon rise:
12:46am
Moon set:
10:05am
Social Media - Mastodon [‒] Social Media - Mastodon [+]
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