Old Res Weather
Lexington, Massachusetts, USA
- Clear
-
35.1°F / 1.7°C
-
32.4°F
- 90%
- Calm, 10-min avg: Calm, gust: None
-
- 10 miles
- 0.01 in
- $VPuv None
Current Conditions [‒] Current Conditions [+]
35.1°F
1.7°C
Cold
Clear
This Afternoon: Hi 40 °F
Tonight: Lo 15 °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
Expected Snow [‒] Expected Snow [+]
72-Hour Snowfall Forecast
For Lexington, 0" expected.
Forecast [‒] Forecast [+]
NWS Weather Forecast -
This Afternoon,
Tonight,
&
Friday
through
Wednesday Night
Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Thu Feb 26, 2026 1:16pm EST
This Afternoon:
Partly Sunny
Hi 40 °F
Partly sunny, with a high near 40. West wind around 7 mph.
Tonight:
Partly Cloudy
Lo 15 °F
Partly cloudy, with a low around 15. Northwest wind around 6 mph.
Friday:
Sunny
Hi 39 °F
Sunny, with a high near 39. Southwest wind 2 to 6 mph.
Friday Night:
Mostly Clear
Lo 28 °F
Mostly clear, with a low around 28. South wind around 6 mph.
Saturday:
Patchy Fog then Sunny
Hi 47 °F
Patchy fog before 9am. Sunny, with a high near 47. Southwest wind 6 to 9 mph.
Saturday Night:
Partly Cloudy then Slight Chance Light Snow
Lo 29 °F
A slight chance of snow after 5am. Partly cloudy, with a low around 29. West wind around 6 mph. Chance of precipitation is 20%.
Sunday:
Light Snow Likely
Hi 34 °F
Snow likely. Partly sunny, with a high near 34. Northwest wind 6 to 9 mph. Chance of precipitation is 60%. New snow accumulation of less than half an inch possible.
Sunday Night:
Mostly Clear
Lo 11 °F
Mostly clear, with a low around 11. Northwest wind around 8 mph.
Monday:
Partly Sunny
Hi 26 °F
Partly sunny, with a high near 26. Northwest wind around 6 mph.
Monday Night:
Partly Cloudy
Lo 12 °F
Partly cloudy, with a low around 12. West wind around 5 mph.
Tuesday:
Mostly Sunny then Slight Chance Light Snow
Hi 35 °F
A slight chance of snow after 5pm. Mostly sunny, with a high near 35. Southwest wind 5 to 8 mph.
Tuesday Night:
Chance Light Snow
Lo 26 °F
A chance of snow. Mostly cloudy, with a low around 26. Southwest wind around 8 mph. Chance of precipitation is 40%.
Wednesday:
Chance Light Snow then Chance Light Rain
Hi 45 °F
A chance of snow before 8am, then a chance of rain. Partly sunny, with a high near 45. West wind around 8 mph. Chance of precipitation is 30%.
Wednesday Night:
Chance Light Snow
Lo 29 °F
A slight chance of rain before 10pm, then a chance of snow. Mostly cloudy, with a low around 29. West wind around 7 mph.
NWS Hourly Forecast -
Today 4pm through Sat 3am
Issued by:
National Weather Service Boston / Norton, MA
Updated Thu Feb 26, 2026 1:16pm EST
4:00pm
Dew Pt 24°F
Wind Chill: 32°F
W 6 mphPrecip: 1%
5:00pm
Dew Pt 24°F
Wind Chill: 31°F
W 5 mphPrecip: 1%
6:00pm
Dew Pt 23°F
Wind Chill: 29°F
W 5 mphPrecip: 2%
7:00pm
Dew Pt 22°F
Wind Chill: 26°F
W 5 mphPrecip: 0%
8:00pm
Dew Pt 20°F
Wind Chill: 23°F
W 6 mphPrecip: 1%
9:00pm
Dew Pt 18°F
Wind Chill: 22°F
NW 6 mphPrecip: 0%
10:00pm
Dew Pt 17°F
Wind Chill: 19°F
NW 6 mphPrecip: 0%
11:00pm
Dew Pt 16°F
Wind Chill: 19°F
NW 5 mphPrecip: 0%
12:00am
Dew Pt 15°F
Wind Chill: 17°F
NW 5 mphPrecip: 0%
1:00am
Dew Pt 14°F
Wind Chill: 16°F
NW 5 mphPrecip: 0%
2:00am
Dew Pt 14°F
Wind Chill: 13°F
NW 5 mphPrecip: 0%
3:00am
Dew Pt 13°F
Wind Chill: 11°F
NW 5 mphPrecip: 0%
4:00am
Dew Pt 12°F
Wind Chill: 10°F
NW 5 mphPrecip: 0%
5:00am
Dew Pt 11°F
Wind Chill: 12°F
NW 3 mphPrecip: 0%
6:00am
Dew Pt 11°F
NW 2 mphPrecip: 0%
7:00am
Dew Pt 11°F
W 2 mphPrecip: 0%
8:00am
Dew Pt 14°F
NW 2 mphPrecip: 0%
9:00am
Dew Pt 16°F
W 2 mphPrecip: 0%
10:00am
Dew Pt 18°F
SW 2 mphPrecip: 0%
11:00am
Dew Pt 19°F
Wind Chill: 29°F
SW 3 mphPrecip: 0%
12:00pm
Dew Pt 21°F
Wind Chill: 30°F
SW 5 mphPrecip: 0%
1:00pm
Dew Pt 22°F
Wind Chill: 31°F
S 6 mphPrecip: 0%
2:00pm
Dew Pt 23°F
Wind Chill: 34°F
S 6 mphPrecip: 0%
3:00pm
Dew Pt 25°F
Wind Chill: 35°F
S 6 mphPrecip: 0%
4:00pm
Dew Pt 26°F
Wind Chill: 34°F
S 6 mphPrecip: 0%
5:00pm
Dew Pt 26°F
Wind Chill: 32°F
S 6 mphPrecip: 0%
6:00pm
Dew Pt 25°F
Wind Chill: 30°F
S 6 mphPrecip: 0%
7:00pm
Dew Pt 25°F
Wind Chill: 29°F
S 6 mphPrecip: 0%
8:00pm
Dew Pt 25°F
Wind Chill: 26°F
S 6 mphPrecip: 0%
9:00pm
Dew Pt 24°F
Wind Chill: 25°F
S 6 mphPrecip: 0%
10:00pm
Dew Pt 24°F
Wind Chill: 24°F
S 6 mphPrecip: 0%
11:00pm
Dew Pt 24°F
Wind Chill: 23°F
S 6 mphPrecip: 0%
12:00am
Dew Pt 24°F
Wind Chill: 23°F
S 6 mphPrecip: 0%
1:00am
Dew Pt 24°F
Wind Chill: 23°F
S 6 mphPrecip: 0%
2:00am
Dew Pt 24°F
Wind Chill: 23°F
S 6 mphPrecip: 0%
3:00am
Dew Pt 24°F
Wind Chill: 23°F
S 6 mphPrecip: 0%
FORECAST DISCUSSION
Area Forecast Discussion
for Boston / Norton, MA
000
FXUS61 KBOX 261940
AFDBOX
Area Forecast Discussion
National Weather Service Boston/Norton MA
240 PM EST Thu Feb 26 2026
.WHAT HAS CHANGED...
No major changes for the first part of the forecast. Increased
chance for snowfall on Sunday with minor accumulations possible.
Still looking at a period of much colder temperatures Monday
into Tuesday.
&&
.KEY MESSAGES...
- Cool tonight and seasonable tomorrow. then warmer Saturday.
- Cold front likely brings a period of accumulating snow Sunday
afternoon. Front will be followed by significantly colder air
with temperatures falling to 10-15 degrees below average
early next week.
- Unsettled and warmer weather remains possible next week, but
uncertainty remains high.
&&
.DISCUSSION...
Key Message 1...Cool tonight and seasonable tomorrow, then
warmer Saturday.
We remain under a weak troughing pattern through the rest of this
week, which will keep southern New England in more seasonable
conditions. Lows tonight will be cool, falling into the teens and
even the single digits up in parts of the interior with radiational
cooling expected as high pressure moves in. Some localized
radiational fog is a possibility, but generally, most won't see it
tonight as it will be quite dry. A weak low pressure will pass well
offshore, but a low chance for some snow showers over Nantucket
still exists.
High pressure remains in place for Friday, leading to lighter winds
that shift more S to SW as the high progresses east. High
temperatures remain seasonable in the upper 30s to low 40s and sunny
skies. With the light S flow, warmer, more moist air will filter in;
925 mb temperatures climb to around 2C-5C Friday evening into
Saturday. Lows Friday night will only dip into the 20s with some
spots in the low 30s near the coast. More areas could end up seeing
some fog Friday night into Saturday morning as dewpoint depressions
approach 0F as well. High temperatures Saturday could approach the
50s with this trend continuing and an upper level ridge settled
aloft.
Key Message 2...Cold front likely brings a period of accumulating
snow Sunday afternoon. Front will be followed by significantly
colder air with temperatures falling to 10-15 degrees below average
early next week.
Model guidance continues to trend stronger with a shortwave passing
to the NW of the CWA Sunday. A bit of a wetter appearance to the
PWAT fields with the most recent guidance increasing to between 0.5
and 0.6 inches. High temperatures ahead of the front increase to
the mid 30s along the coastal plain and closer to freezing in the
interior. These marginal surface temps paired with the late February
sun angle likely mean that snow will have a difficult time sticking
to roadways on the coastal plain. Slippery conditions become more
likely further inland. A very cold airmass settles in behind the
front Sunday night with 850mb temps falling to between -12 and -15C!
Low temperatures on Sunday and Monday morning will be in or near the
single digits, with Mondays highs in the low to mid 20s. Winds will
be rather calm during this arctic outbreak, keeping the wind chill
index from dropping below zero.
Key Message 3...Unsettled and warmer weather remains possible next
week, but uncertainty remains high.
Temperatures are expected to warm back to more seasonal levels
Tuesday through the rest of next week, with highs in the upper 30s
to low 40s. Guidance continues to advertise some kind of overrunning
event as warm air aloft overspreads lingering low level cold air
over the Northeast Wednesday. While confidence remains quite low at
this time, these types of events tend to bring mixed precipitation
and icing. A strengthening southeast ridge should keep the theme of
warmer temperatures going through much of next week.
&&
.AVIATION /19Z THURSDAY THROUGH TUESDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
18z TAF Update...
Rest of Today...High Confidence.
VFR. W winds getting up to 12 kt with occasional gusts to just
under 20 kt for eastern terminals following today's frontal
passage. Winds continue to diminish as the day goes on.
Tonight...High Confidence
VFR with brief periods of MVFR possible in any localized
radiational fog that develops in the CT Valley and parts of the
coastal plain. Mostly dry overall, but it can't be ruled out
entirely. Not expected to last very long between 06z-09z. Light
NW to calm winds.
Tomorrow...High Confidence.
VFR. Light SW winds under 10 knots.
Tomorrow Night...Moderate Confidence.
VFR with areas of MVFR possible in BR over the CT Valley, RI,
and into NE MA. Light SW winds, becoming calm in some locations.
KBOS Terminal...High confidence
KBDL Terminal...High confidence
Low chance for radiational BR tonight after midnight.
Outlook /Saturday through Tuesday/...
Saturday: VFR. Breezy.
Saturday Night: VFR.
Sunday: Mainly VFR, with local IFR possible. Breezy. Chance SN.
Sunday Night: VFR. Breezy.
Monday: VFR. Slight chance SN.
Monday Night: VFR.
Tuesday: VFR. Slight chance SN.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Through Friday Night...High confidence.
Winds remain less than 20 kt through tonight aside from
occasional gusts across the outer waters. S to SW winds remain
mostly between 5-10 kt into tomorrow night with the exception of
the outer northernmost waters where winds to 20 kt are possible. Seas
5-6 feet linger across the southern outer waters through Friday
so SCA headlines will remain.
Outlook /Saturday through Tuesday/...
Saturday: Winds less than 25 kt. Seas locally approaching 5 ft.
Saturday Night: Winds less than 25 kt.
Sunday: Winds less than 25 kt. Seas locally approaching 5 ft.
Chance of snow.
Sunday Night: Low risk for Small Craft Advisory winds with
gusts up to 25 kt. Seas up to 5 ft. Chance of freezing spray.
Monday: Winds less than 25 kt. Seas locally approaching 5 ft.
Slight chance of snow.
Monday Night: Winds less than 25 kt. Slight chance of snow.
Tuesday: Winds less than 25 kt. Seas locally approaching 5 ft.
Slight chance of rain.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 7 PM EST this evening for ANZ235-
237.
Small Craft Advisory until 1 AM EST Saturday for ANZ254>256.
&&
$$
DISCUSSION...Hrencecin/FT
AVIATION...Hrencecin
MARINE...Hrencecin/FT
Radar [‒] Radar [+]
Radar images courtesy Weather Underground / Intellicast.
Satellite [‒] Satellite [+]
Satellite images courtesy Weather Underground / Intellicast.
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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.
0.00 in
Rain Rate (/hr):
0.00 in
Rain Last 60 min:
0.01 in
Rain Today:
0.00 in
Wednesday:
0.01 in
February:
1.26 in
2026
Daily Extremes [‒] Daily Extremes [+]
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:
Alerts / Advisories [‒] Alerts / Advisories [+]
No alerts/warnings active for Southeast Middlesex County.
Sun / Moon [‒] Sun / Moon [+]
First Light:
6:11am
Sunrise:
6:39am
Sunset:
5:19pm
Twilight ends:
5:47pm
Daylight length:
10 hours 39 minutes
Phase:
Waxing Gibbous (82%)
Moon set:
8:18am
Moon rise:
9:38pm