Lexington, Massachusetts, USA
35.1°F
1.7°C
Cold
Overcast
Tonight: Lo 37 °F
Friday: Hi 40 °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 12, 2026 4:23pm EST
- Widespread rain overspreads the region this evening and changes to a period of wet snow in the high terrain before tapering off early Fri. Any snow accumulations very minor with the greatest risk across the northern ORH Hills/Berks. Lingering rain Fri afternoon will mainly be across RI/SE MA and especially near the south coast.
- Cooler, cloudy weather with northwest breezes this weekend. Mainly dry weather, but hit or miss scattered showers possible Saturday afternoon.
- Prolonged stretch of dry weather early to mid next week, with a warming trend to temperatures.
Light Rain
Lo 37 °F
Rain. Cloudy, with a low around 37. Northeast wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Light Rain
Hi 40 °F
Rain. Cloudy, with a high near 40. North wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
Slight Chance Light Rain then Cloudy
Lo 33 °F
A slight chance of rain before 8pm. Cloudy, with a low around 33. Northwest wind around 8 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Mostly Cloudy then Isolated Rain Showers
Hi 44 °F
Isolated rain showers between 1pm and 5pm. Mostly cloudy, with a high near 44. Northwest wind around 8 mph. Chance of precipitation is 20%.
Partly Cloudy
Lo 33 °F
Partly cloudy, with a low around 33. West wind around 7 mph.
Mostly Sunny
Hi 49 °F
Mostly sunny, with a high near 49. Northwest wind 7 to 10 mph, with gusts as high as 21 mph.
Partly Cloudy
Lo 33 °F
Partly cloudy, with a low around 33. Northwest wind around 7 mph.
Sunny
Hi 50 °F
Sunny, with a high near 50. Northwest wind 3 to 8 mph.
Mostly Clear
Lo 30 °F
Mostly clear, with a low around 30. West wind around 3 mph.
Sunny
Hi 55 °F
Sunny, with a high near 55. West wind around 6 mph.
Clear
Lo 35 °F
Clear, with a low around 35. West wind around 5 mph.
Sunny
Hi 61 °F
Sunny, with a high near 61. West wind around 6 mph.
Clear
Lo 38 °F
Clear, with a low around 38. West wind around 5 mph.
Sunny
Hi 62 °F
Sunny, with a high near 62. West wind around 5 mph.
Issued by:
National Weather Service Boston / Norton, MA
Updated Thu Nov 12, 2026 4:23pm EST

NE 15 mph
NE 15 mph
NE 15 mph
NE 15 mph
NE 15 mph
NE 15 mph
N 15 mph
N 15 mph
N 15 mph
N 15 mph
N 15 mph
N 15 mph
N 15 mph
N 14 mph
N 13 mph
N 12 mph
N 12 mph
N 10 mph
N 10 mph
N 10 mph
N 9 mph
N 9 mph
N 9 mph
N 8 mph
N 8 mph
N 8 mph
NW 7 mph
NW 7 mph
NW 7 mph
N 7 mph
N 7 mph
NW 7 mph
NW 6 mph
NW 6 mph
NW 6 mph
NW 6 mph
000
FXUS61 KBOX 122336
AFDBOX
Area Forecast Discussion
National Weather Service Boston/Norton MA
636 PM EST Thu Nov 12 2026
.WHAT HAS CHANGED...
No significant changes to the forecast. We did issue a coastal flood
statement for the Friday afternoon high tide along north facing
beaches of Cape Cod Bay and Nantucket sound for some splashover/very
minor coastal flooding possible.
&&
.KEY MESSAGES...
- Widespread rain overspreads the region this evening and
changes to a period of wet snow in the high terrain before
tapering off early Fri. Any snow accumulations very minor with
the greatest risk across the northern ORH Hills/Berks.
Lingering rain Fri afternoon will mainly be across RI/SE MA
and especially near the south coast.
- Cooler, cloudy weather with northwest breezes this weekend.
Mainly dry weather, but hit or miss scattered showers
possible Saturday afternoon.
- Prolonged stretch of dry weather early to mid next week, with
a warming trend to temperatures.
&&
.DISCUSSION...
KEY MESSAGE 1...Widespread rain overspreads the region this evening
and changes to a period of wet snow in the high terrain before
tapering off early Fri. Any snow accumulations very minor with the
greatest risk across the northern ORH Hills/Berks. Lingering rain
Fri afternoon will mainly be across RI/SE MA and especially near the
south coast.
Outside of a few spot showers across southern New England this
afternoon mainly across the interior...dry weather dominated.
Despite a developing ESE low level jet...the model cross sections
indicated a lot of low level dry air in the soundings which was
resulting in mainly dry weather. However...as low pressure emerges
off the mid-Atlantic coast a stronger LLJ/forcing will move into the
region. As a result...we expect widespread rain to overspread the
region this evening.
Thermal profiles do indicate that the atmosphere will become cold
enough for a changeover to wet snow in the high terrain of the Berks
and Worcester Hills overnight. The problem is that the overall
duration/intensity of the wet snow looks to be limited. This a
result of shortwave energy over southern Quebec which compresses the
system to the south. You can see that by looking at the mid level
centers/surface low pressure contours. It takes on more of an oval
instead of spherical shape which indicates the storm being suppressed
further south by northern stream shortwave energy. Therefore...the
bulk of the precipitation will be ending early-mid morning Fri
especially north of I-90. This should result in any snow
accumulations being very minor across the high terrain of just a
coating to perhaps an inch or two...generally at or above 1000 feet.
Little if any travel impacts are expected other than perhaps brief
slushy secondary roadways above 1000 feet with the greatest risk
near 1500 feet along the east slopes of the Berks.
As we mentioned...the low pressure being suppressed to the south will
result in the leftover rain Friday afternoon mainly confined to
parts of RI/SE MA and especially near the south coast. There is a
low risk that if the precipitation falls heavy enough a few brief
snowflakes may even mix in for a time...but no accumulations/impacts
expected. Otherwise...a raw chilly day with a gusty N wind and
Fri afternoon temperatures mainly in the upper 30s to the lower 40s.
Otherwise...an abundance of clouds may linger Fri night given
cyclonic flow but nothing more than a few spot showers across the
far southeast New England coast. Otherwise...low temps should be
held mainly in the 30s given lingering clouds and many places not
decoupling.
Lastly...gusty northerly winds coupled with astronomical high tides
may result in splashover/very minor coastal flooding along north
facing beaches across Cape Cod Bay and Nantucket sound. No
significant impacts are expected and any splashover/very minor
coastal flooding will be quite short-lived, no more than an hour on
either side of high tide.
KEY MESSAGE 2...Cooler, cloudy with northwest breezes this
weekend. Mainly dry weather, but hit or miss scattered showers
possible Saturday afternoon.
In the wake of the Friday storm system, we'll be left in a cool and
moist cyclonic flow aloft as we move into the weekend. This will
keep our weather pattern unsettled with more clouds than sun with
northwesterly breezes. Amid the broader cyclonic flow aloft, models
depict a pretty strong shortwave disturbance aloft rotating
southward through New England Saturday afternoon into early evening.
This will at least increase RH through the column with dynamic
support associated with the shortwave could yield some scattered,
hit-or-mostly-miss showers as the shortwave digs southward. Went
ahead and added a mention of scattered showers for Saturday
afternoon over the dry NBM, although limited to nil impacts with
these showers.
With the cool cyclonic flow (925 mb temps around 0 to -2C) and
mostly cloudy/overcast conditions, highs on Saturday could end up
rather chilly in the low to mid 40s lower elevations and upper
30s/near 40 in the Berkshires and Worcester and Tolland hills.
Slightly milder conditions in the mid/upper 40s lower elevations and
low to mid 40s higher elevations for Sunday.
KEY MESSAGE 3...Prolonged stretch of dry weather early to mid
next week, with a warming trend to temperatures.
Strong multi-ensemble support for a modifying weather pattern as 500
mb heights rise significantly, moving into early to midweek. This
implies a steady warming trend to temperatures Monday through
Wednesday (and potentially longer), but also supports several days
of dry weather as surface ridging takes hold. Highs should rebound
back into the upper 50s to mid 60s by Wed, which are about 5-10
degrees above normal, and there is potential for those highs to be a
couple degrees warmer as we get entrenched into the drier weather
pattern.
&&
.AVIATION /00Z FRIDAY THROUGH TUESDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
00z TAF Update:
Tonight: Moderate confidence.
Conditions deteriorate to widespread MVFR ceilings/visbys with
intervals IFR ceilings/visbys, as rain intensities becoming
steady light to moderate tonight and continues into overnight.
Rain may begin to mix with wet snowflakes at ORH around 09-10z
but accum on runways minimal. NE/NNE winds 13-18 kt with gusts
25-30 kt, strongest gusts southeast New England.
Friday: Moderate confidence.
MVFR-IFR rains and ORH rain/snow showers continue; although
improving visbys as rain intensity begins to taper off by 13-15z
northern MA, around 15-18z for the interior, then improving by
19- 22z for southeast New England and Cape Cod/Islands. Ceilings
may only improve to MVFR levels during the daytime hours. NE/N
winds around 12-16 kt with gusts 25-28 kt.
Friday Night: High confidence in TAF/trends but moderate on
timing.
Should be starting with widespread MVFR ceilings; the trend
should be toward BKN/OVC VFR, but the exact timing isn't
certain. Looks like more substantial improvement takes place
after 06z Sat. North to northwest winds 8-12 kt with gusts to 20
kt.
KBOS Terminal...Moderate confidence in TAF. OVC VFR should
deteriorate to widespread MVFR in RA and lowering ceilings
00z-02z. Period IFR visbys in RA possible overnight but
difficult to time.
KBDL Terminal...Moderate confidence in TAF. OVC VFR should
deteriorate to widespread MVFR in RA and lowering ceilings
00z-02z. Period IFR visbys in RA possible overnight but
difficult to time.
Outlook /Saturday through Tuesday/...
Saturday: Mainly VFR, with local MVFR possible. Chance FZRA,
isolated SHRA.
Saturday Night through Sunday Night: VFR. Breezy.
Monday through Tuesday: VFR.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Tonight through Friday night...High confidence.
* Gale Warnings posted tonight into Friday
Low pressure emerges off the mid Atlantic coast tonight and tracks
near the Benchmark Fri. The pressure gradient will be strong enough
to generate N-NE wind gusts of 35 knots across our open waters
tonight into Fri along with 5 to 10 foot seas. Gale Warnings
continue for our open waters tonight into Friday. The low moves east
of the the Benchmark Fri night and pressure gradient weakens enough
for winds to diminish to small craft advisory levels.
Outlook /Saturday through Tuesday/...
Saturday: Winds less than 25 kt. Areas of rough seas. Isolated
rain showers.
Saturday Night through Sunday: Winds less than 25 kt. Seas up
to 5 ft. Chance of rain.
Sunday Night: Winds less than 25 kt. Seas up to 5 ft. Slight
chance of rain.
Monday: Winds less than 25 kt. Seas locally approaching 5 ft.
Monday Night through Tuesday: Winds less than 25 kt.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 7 PM EST Friday for ANZ230-236.
Gale Warning from 1 AM to 7 PM EST Friday for ANZ231>235-237-
255-256-282-283.
Gale Warning until 7 PM EST Friday for ANZ250-251-254-280-281.
&&
$$
DISCUSSION...Frank/Loconto
AVIATION...McMinn
MARINE...Frank/Loconto
Radar images courtesy Weather Underground / Intellicast.
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
2026
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.
No snow expected in Lexington.
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