Lexington Weather
Lexington, Massachusetts, USA
- Clear
-
29.8°F / -1.2°C
-
13.5°F
-
50%
- Calm, 10-min avg: Calm, gust: 3 mph
- 10 miles
- 0.0 in
Current Conditions [‒] Current Conditions [+]
29.8°F
-1.2°C
Cold
Clear
This Afternoon: Hi 32 °F
Tonight: Lo 8 °F
Dew Point:
13.5°F
Humidity:
50%
Barometer:
mb
Snow Today: 0.0 in
Snow Tuesday: 0.0 in
February: 0.0 in
Winter: 29.5 in
Depth: 11.0 in
Visibility: 10 miles
Wind:
Now: Calm
Avg: Calm
Gusts: 3 mph
Expected Snow [‒] Expected Snow [+]
72-Hour Snowfall Forecast
For Lexington, 1" expected.
Forecast [‒] Forecast [+]
NWS Weather Forecast -
This Afternoon,
Tonight,
&
Thursday
through
Tuesday Night
Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Wed Feb 4, 2026 12:45pm EST
This Afternoon:
Sunny
Hi 32 °F
Sunny, with a high near 32. Northwest wind 9 to 14 mph.
Tonight:
Mostly Clear
Lo 8 °F
Mostly clear, with a low around 8. West wind 3 to 7 mph.
Thursday:
Sunny
Hi 29 °F
Sunny, with a high near 29. Northwest wind 3 to 9 mph.
Thursday Night:
Partly Cloudy
Lo 4 °F
Partly cloudy, with a low around 4. Wind chill values as low as -3. Northwest wind around 6 mph.
Friday:
Mostly Cloudy
Hi 27 °F
Mostly cloudy, with a high near 27. Northeast wind around 5 mph.
Friday Night:
Chance Light Snow
Lo 16 °F
A chance of snow after 10pm. Cloudy, with a low around 16. South wind around 2 mph. Chance of precipitation is 50%. New snow accumulation of less than half an inch possible.
Saturday:
Light Snow
Hi 26 °F
Snow. Cloudy, with a high near 26. Northwest wind 3 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Saturday Night:
Chance Light Snow then Mostly Cloudy
Lo 1 °F
A chance of snow before midnight. Mostly cloudy, with a low around 1. Northwest wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. New snow accumulation of less than one inch possible.
Sunday:
Mostly Sunny
Hi 17 °F
Mostly sunny, with a high near 17. Northwest wind around 12 mph, with gusts as high as 24 mph.
Sunday Night:
Mostly Clear
Lo 0 °F
Mostly clear, with a low around 0. Northwest wind around 9 mph.
Monday:
Sunny
Hi 24 °F
Sunny, with a high near 24. Northwest wind around 8 mph.
Monday Night:
Mostly Clear
Lo 9 °F
Mostly clear, with a low around 9. Northwest wind around 6 mph.
Tuesday:
Mostly Sunny
Hi 29 °F
Mostly sunny, with a high near 29. Northwest wind around 7 mph.
Tuesday Night:
Mostly Cloudy
Lo 14 °F
Mostly cloudy, with a low around 14. Northwest wind around 6 mph.
NWS Hourly Forecast -
Today 4pm through Fri 3am
Issued by:
National Weather Service Boston / Norton, MA
Updated Wed Feb 4, 2026 12:45pm EST
4:00pm
Dew Pt 15°F
Wind Chill: 21°F
NW 13 mphPrecip: 0%
5:00pm
Dew Pt 13°F
Wind Chill: 19°F
NW 9 mphPrecip: 0%
6:00pm
Dew Pt 10°F
Wind Chill: 17°F
W 7 mphPrecip: 0%
7:00pm
Dew Pt 9°F
Wind Chill: 16°F
W 5 mphPrecip: 0%
8:00pm
Dew Pt 8°F
Wind Chill: 13°F
W 5 mphPrecip: 0%
9:00pm
Dew Pt 7°F
Wind Chill: 11°F
W 5 mphPrecip: 0%
10:00pm
Dew Pt 7°F
Wind Chill: 10°F
W 5 mphPrecip: 0%
11:00pm
Dew Pt 6°F
Wind Chill: 8°F
W 5 mphPrecip: 0%
12:00am
Dew Pt 6°F
Wind Chill: 6°F
W 5 mphPrecip: 0%
1:00am
Dew Pt 5°F
Wind Chill: 7°F
W 3 mphPrecip: 0%
2:00am
Dew Pt 4°F
Wind Chill: 6°F
W 3 mphPrecip: 0%
3:00am
Dew Pt 4°F
Wind Chill: 6°F
W 3 mphPrecip: 0%
4:00am
Dew Pt 4°F
Wind Chill: 5°F
W 3 mphPrecip: 0%
5:00am
Dew Pt 3°F
Wind Chill: 4°F
W 3 mphPrecip: 0%
6:00am
Dew Pt 3°F
Wind Chill: 2°F
W 3 mphPrecip: 0%
7:00am
Dew Pt 3°F
Wind Chill: 2°F
W 3 mphPrecip: 0%
8:00am
Dew Pt 5°F
Wind Chill: 5°F
W 5 mphPrecip: 0%
9:00am
Dew Pt 11°F
Wind Chill: 9°F
NW 7 mphPrecip: 0%
10:00am
Dew Pt 13°F
Wind Chill: 13°F
NW 8 mphPrecip: 0%
11:00am
Dew Pt 14°F
Wind Chill: 16°F
NW 8 mphPrecip: 0%
12:00pm
Dew Pt 14°F
Wind Chill: 18°F
NW 9 mphPrecip: 0%
1:00pm
Dew Pt 14°F
Wind Chill: 19°F
NW 9 mphPrecip: 0%
2:00pm
Dew Pt 14°F
Wind Chill: 20°F
NW 9 mphPrecip: 0%
3:00pm
Dew Pt 14°F
Wind Chill: 21°F
NW 8 mphPrecip: 0%
4:00pm
Dew Pt 14°F
Wind Chill: 20°F
NW 8 mphPrecip: 0%
5:00pm
Dew Pt 13°F
Wind Chill: 17°F
NW 7 mphPrecip: 0%
6:00pm
Dew Pt 11°F
Wind Chill: 13°F
NW 6 mphPrecip: 0%
7:00pm
Dew Pt 9°F
Wind Chill: 9°F
NW 5 mphPrecip: 0%
8:00pm
Dew Pt 9°F
Wind Chill: 6°F
N 5 mphPrecip: 0%
9:00pm
Dew Pt 8°F
Wind Chill: 4°F
N 5 mphPrecip: 0%
10:00pm
Dew Pt 7°F
Wind Chill: 3°F
NW 5 mphPrecip: 0%
11:00pm
Dew Pt 6°F
Wind Chill: 1°F
N 5 mphPrecip: 0%
12:00am
Dew Pt 6°F
Wind Chill: -1°F
N 5 mphPrecip: 0%
1:00am
Dew Pt 6°F
Wind Chill: -3°F
N 6 mphPrecip: 0%
2:00am
Dew Pt 6°F
Wind Chill: -2°F
N 5 mphPrecip: 0%
3:00am
Dew Pt 6°F
Wind Chill: -2°F
N 5 mphPrecip: 0%
FORECAST DISCUSSION
Area Forecast Discussion
for Boston / Norton, MA
000
FXUS61 KBOX 041923
AFDBOX
Area Forecast Discussion
National Weather Service Boston/Norton MA
223 PM EST Wed Feb 4 2026
.WHAT HAS CHANGED...
Increasing confidence in a period of snow showers with light
accumulations late Friday night into Saturday ahead of the arctic
front, then additional ocean effect snow showers for Cape Cod and
Nantucket through Saturday night.
&&
.KEY MESSAGES...
- Dry and quiet weather through Thu night but with cold
temperatures especially during the overnight and early morning
hours.
- More active Friday into this weekend. Bitterly cold into early
next week. Chance for dangerously cold wind chills this
weekend along with strong winds and heavy freezing spray over
the waters.
&&
.DISCUSSION...
KEY MESSAGE 1...Dry and quiet weather through Thu night but with
cold temperatures especially during the overnight and early
morning hours.
A ridge of high pressure in control will result in dry but cold
weather through Thu night. This is especially true during the
overnight/early morning hours given light/calm winds coupled
with deep snow cover. This will allow for low temps to dip into
the single digits in many outlying locations with even a few
below zero readings in the normally coldest low-lying spots.
Meanwhile...the urban centers and typical non-decoupling
locations will bottom out mainly in the teens. Highs on Thu will
be mainly in the upper 20s to near 30 with plenty of sunshine
and light winds.
KEY MESSAGE 2...More active Friday into this weekend. Bitterly
cold into early next week. Chance for dangerously cold wind
chills this weekend along with strong winds and heavy freezing
spray over the waters.
Our relatively quiet weather should end late this week into
this weekend. Latest guidance suite added a slight wrinkle into
the forecast. One low pressure is still expected to move well
offshore of southern New England Friday. The wrinkle is what
becomes of a second low pressure that was projected to move into
the Great Lakes and northern New England. The latest guidance
now has this low pressure essentially jump to somewhere around
the NJ coast Friday night into Saturday morning in response to
diabatic heating from the ocean and the arctic airmass poised to
overspread our region.
Some light, fluffy snow showers are possible across southern
New England from the combination of the arctic front and weak
low pressure. Snow showers could be more enhanced towards the
eastern coastline by any lingering ocean effect processes. Some
snow squalls are a possibility as well with this front. Right
now, thinking sub-advisory level snowfall of 1-3 inches is
possible through Saturday. The details are still coming into
better focus, so further changes are possible with later
forecasts.
Following the arctic front passage, dangerous cold will settle
over our region. Confidence is increasing in the possibility
for cold weather headlines, especially when the core of this
arctic air moves in sometime Saturday night into Sunday morning.
Still looking like sub-zero minimum wind chills ranging from -10
to -30 degrees for most. Ensemble guidance continues to center the
higher probabilities for wind chills below -25F towards the
Berkshires and the higher elevations of central MA. These
bitterly cold conditions are expected to last into the start
of next week.
As mentioned above, an offshore low is expected to deepen,
which will lead to southern New England being caught in the
tightening pressure gradient as high pressure remains towards
the Great Lakes. Gale-force winds are a possibility over the
waters, and we may end up needing wind headlines on land as
well, particularly towards the outer Cape and Nantucket. Gale
Watches posted for most of the coastal waters from Saturday
afternoon through Sunday morning.
With the elevated winds and very cold temperatures, confidence
is increasing in the chance for moderate to heavy freezing spray
over the waters this weekend as well.
&&
.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...
This afternoon through Thursday night...High confidence.
VFR. NW winds 10 to 15 knots with gusts at times between 20 and
25 knots this afternoon will diminish this evening. Otherwise...
sustained NW winds generally 10 knots or less tonight through
Thu night.
KBOS Terminal...High confidence in TAF.
KBDL Terminal...High Confidence in TAF.
Outlook /Friday through Monday/...
Friday: Mainly VFR, with local MVFR possible.
Friday Night: Mainly VFR, with local IFR possible. Chance SN.
Saturday: MVFR/IFR conditions possible. Windy with gusts up to
35 kt. SN likely.
Saturday Night: VFR. Windy with gusts up to 35 kt. Chance SN.
Sunday: VFR. Windy with local gusts up to 30 kt.
Sunday Night through Monday: VFR. Breezy.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Through Thursday...High confidence.
Quiet weather across the coastal waters through Thu with winds
and seas below SCA thresholds. NW winds will persist through Thu
with gusts around 20 kt developing today.
Outlook /Friday through Monday/...
Friday: Winds less than 25 kt.
Friday Night: Winds less than 25 kt. Chance of snow.
Saturday: Low risk for gale force winds with gusts up to 40 kt.
Local rough seas. Snow likely, freezing spray. Visibility 1 to
3 nm.
Saturday Night: gale force winds with local gusts up to 45 kt.
Rough seas up to 16 ft. Freezing spray, chance of snow. Local
visibility 1 to 3 nm.
Sunday: Strong winds with gusts up to 30 kt. Rough seas up to
15 ft. Freezing spray.
Sunday Night: Moderate risk for Small Craft Advisory winds with
gusts up to 25 kt. Areas of rough seas. Freezing spray.
Monday: Winds less than 25 kt. Seas up to 5 ft. Freezing spray.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Gale Watch from Saturday afternoon through Sunday afternoon
for ANZ231>235-237-250-251-254>256.
Heavy Freezing Spray Watch from Saturday afternoon through
Sunday afternoon for ANZ231>237-250-251-254>256.
&&
$$
DISCUSSION...Belk/Frank
AVIATION...Belk/Frank
MARINE...Belk/KJC
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): 0 None
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 Tuesday:
0.0 in
February total:
29.5 in
Season total:
11.0 in
Snow Depth:
0 snow days in February
26 snow days this season
Daily Extremes [‒] Daily Extremes [+]
1:14pm
32.4°F
High today:
5:40am
20.1°F
Low today:
2:25pm
35.8°F
High Tuesday:
6:59am
14.0°F
Low Tuesday:
10:12am
17.8°F
Low wind chill today:
6:59am
14.0°F
Low wind chill Tuesday:
8:08am
17.4°F
High dew pt today:
11:50am
15.4°F
High dew pt Tuesday:
10:12am
13 mph
Wind gust today:
9:35am
3 mph
Wind gust Tuesday:
Alerts / Advisories [‒] Alerts / Advisories [+]
No alerts/warnings active for Southeast Middlesex County.
Sun / Moon [‒] Sun / Moon [+]
First Light:
6:26am
Sunrise:
6:55am
Sunset:
5:03pm
Twilight ends:
5:32pm
Daylight length:
10 hours 8 minutes
Phase:
Waning Gibbous (90%)
Moon set:
8:16am
Moon rise:
8:25pm
Social Media - Mastodon [‒] Social Media - Mastodon [+]
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