Old Res Weather
Lexington, Massachusetts, USA
- Overcast
-
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
Overcast
Today: Hi 52 °F
Tonight: Lo 36 °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
Trace of snow expected in Lexington.
Forecast [‒] Forecast [+]
NWS Weather Forecast -
Today,
Tonight,
&
Friday
through
Wednesday Night
Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Thu Nov 12, 2026 4:14am EST
Overview:
- A storm system will bring a prolonged period of rain to much of southern New England Thursday through Saturday with periods of snow in the higher elevations. Significant accumulation is not expected.
- High pressure brings cool and dry conditions back to southern New England for a majority of the weekend and into next week.
Today:
Light Rain Likely
Hi 52 °F
Rain likely after 7am. Cloudy, with a high near 52. Northeast wind 3 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Tonight:
Light Rain
Lo 36 °F
Rain. Cloudy, with a low around 36. Northeast wind around 12 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday:
Light Snow Likely
Hi 40 °F
Rain likely before 9am, then snow likely between 9am and noon, then rain likely between noon and 3pm, then a chance of snow. Cloudy, with a high near 40. North wind 7 to 12 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Friday Night:
Chance Light Rain then Mostly Cloudy
Lo 32 °F
A chance of rain before 7pm. Mostly cloudy, with a low around 32. Northwest wind around 7 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Saturday:
Mostly Cloudy
Hi 46 °F
Mostly cloudy, with a high near 46. Northwest wind around 8 mph.
Saturday Night:
Partly Cloudy
Lo 32 °F
Partly cloudy, with a low around 32. Northwest wind around 7 mph.
Sunday:
Mostly Sunny
Hi 49 °F
Mostly sunny, with a high near 49. Northwest wind around 9 mph.
Sunday Night:
Partly Cloudy
Lo 33 °F
Partly cloudy, with a low around 33. Northwest wind around 6 mph.
Monday:
Sunny
Hi 50 °F
Sunny, with a high near 50. Northwest wind 3 to 7 mph.
Monday Night:
Mostly Clear
Lo 30 °F
Mostly clear, with a low around 30. Northwest wind around 5 mph.
Tuesday:
Sunny
Hi 53 °F
Sunny, with a high near 53. West wind around 6 mph.
Tuesday Night:
Clear
Lo 31 °F
Clear, with a low around 31. West wind around 3 mph.
Wednesday:
Sunny
Hi 58 °F
Sunny, with a high near 58. West wind around 5 mph.
Wednesday Night:
Mostly Clear
Lo 34 °F
Mostly clear, with a low around 34. West wind around 5 mph.
NWS Hourly Forecast -
Today 8am through Fri 7pm
Issued by:
National Weather Service Boston / Norton, MA
Updated Thu Nov 12, 2026 4:14am EST
8:00am
Dew Pt 40°F
Wind Chill: 37°F
NE 5 mphPrecip: 26%
9:00am
Dew Pt 44°F
Wind Chill: 41°F
NE 5 mphPrecip: 31%
10:00am
Dew Pt 45°F
Wind Chill: 44°F
E 6 mphPrecip: 33%
11:00am
Dew Pt 46°F
Wind Chill: 46°F
E 7 mphPrecip: 35%
12:00pm
Dew Pt 46°F
Wind Chill: 47°F
E 8 mphPrecip: 35%
1:00pm
Dew Pt 46°F
Wind Chill: 46°F
E 9 mphPrecip: 36%
2:00pm
Dew Pt 46°F
Wind Chill: 46°F
NE 9 mphPrecip: 38%
3:00pm
Dew Pt 45°F
Wind Chill: 45°F
NE 9 mphPrecip: 54%
Rain: 0.01 in
4:00pm
Dew Pt 45°F
Wind Chill: 44°F
NE 9 mphPrecip: 67%
Rain: 0.01 in
5:00pm
Dew Pt 45°F
Wind Chill: 43°F
NE 9 mphPrecip: 72%
Rain: 0.01 in
6:00pm
Dew Pt 45°F
Wind Chill: 41°F
NE 10 mphPrecip: 81%
Rain: 0.01 in
7:00pm
Dew Pt 45°F
Wind Chill: 40°F
NE 10 mphPrecip: 82%
Rain: 0.03 in
8:00pm
Dew Pt 45°F
Wind Chill: 41°F
NE 10 mphPrecip: 90%
Rain: 0.03 in
9:00pm
Dew Pt 44°F
Wind Chill: 41°F
NE 10 mphPrecip: 92%
Rain: 0.04 in
10:00pm
Dew Pt 44°F
Wind Chill: 41°F
NE 10 mphPrecip: 86%
Rain: 0.03 in
11:00pm
Dew Pt 44°F
Wind Chill: 40°F
NE 10 mphPrecip: 89%
Rain: 0.03 in
12:00am
Dew Pt 43°F
Wind Chill: 38°F
NE 10 mphPrecip: 91%
Rain: 0.03 in
1:00am
Dew Pt 43°F
Wind Chill: 37°F
NE 10 mphPrecip: 84%
Rain: 0.02 in
2:00am
Dew Pt 42°F
Wind Chill: 37°F
NE 12 mphPrecip: 80%
Rain: 0.02 in
3:00am
Dew Pt 41°F
Wind Chill: 37°F
NE 12 mphPrecip: 80%
Rain: 0.02 in
4:00am
Dew Pt 39°F
Wind Chill: 36°F
N 12 mphPrecip: 75%
Rain: 0.02 in
5:00am
Dew Pt 38°F
Wind Chill: 34°F
N 12 mphPrecip: 67%
Rain: 0.02 in
6:00am
Dew Pt 38°F
Wind Chill: 32°F
N 12 mphPrecip: 63%
Rain: 0.02 in
7:00am
Dew Pt 36°F
Wind Chill: 31°F
N 12 mphPrecip: 55%
Rain: 0.01 in
8:00am
Dew Pt 37°F
Wind Chill: 29°F
N 12 mphPrecip: 50%
Rain: 0.01 in
9:00am
Dew Pt 36°F
Wind Chill: 28°F
N 12 mphPrecip: 55%
Rain: 0.01 in
10:00am
Dew Pt 36°F
Wind Chill: 29°F
N 10 mphPrecip: 59%
Rain: 0.01 in
11:00am
Dew Pt 36°F
Wind Chill: 29°F
N 10 mphPrecip: 66%
Rain: 0.01 in
12:00pm
Dew Pt 37°F
Wind Chill: 30°F
N 10 mphPrecip: 70%
Rain: 0.01 in
1:00pm
Dew Pt 37°F
Wind Chill: 30°F
N 10 mphPrecip: 59%
Rain: 0.01 in
2:00pm
Dew Pt 37°F
Wind Chill: 30°F
N 9 mphPrecip: 51%
Rain: 0.01 in
3:00pm
Dew Pt 36°F
Wind Chill: 29°F
N 9 mphPrecip: 46%
Rain: 0.01 in
4:00pm
Dew Pt 35°F
Wind Chill: 30°F
N 8 mphPrecip: 49%
Rain: 0.01 in
5:00pm
Dew Pt 36°F
Wind Chill: 30°F
N 7 mphPrecip: 54%
Rain: 0.01 in
6:00pm
Dew Pt 36°F
Wind Chill: 32°F
N 7 mphPrecip: 48%
Rain: 0.01 in
7:00pm
Dew Pt 36°F
Wind Chill: 32°F
N 6 mphPrecip: 10%
FORECAST DISCUSSION
Area Forecast Discussion
for Boston / Norton, MA
000
FXUS61 KBOX 121104
AFDBOX
Area Forecast Discussion
National Weather Service Boston/Norton MA
604 AM EST Thu Nov 12 2026
.WHAT HAS CHANGED...
No significant changes to the forecast. Noted potential for
minor coastal flooding at Nantucket Friday afternoon. Gale
Watches were converted to Gale Warnings.
&&
.KEY MESSAGES...
- A storm system will bring a prolonged period of rain to much
of southern New England Thursday through Saturday with periods
of snow in the higher elevations. Significant accumulation is
not expected.
- High pressure brings cool and dry conditions back to southern
New England for a majority of the weekend and into next week.
&&
.DISCUSSION...
KEY MESSAGE 1...A storm system will bring a prolonged period of rain
to much of southern New England Thursday through Saturday with
periods of snow in the higher elevations. Significant accumulation
is not expected.
Light radar returns are visible across central SNE early this
morning as the first taste of the rain to come later today
overspreads the region. This, as a strengthening low pressure center
and lagging mid level trough will track over the Mid-Atlantic today
and move off the coast (south of New England) tonight. Eventually it
lifts into the Gulf of Maine Friday night into the weekend taking
its associated moisture with it. Thus, the next 36-42 hours are
expected to be wet before we dry out for the weekend. Low/mid level
warm advection ahead of the low will bring rather widespread rain
today, mainly confined to the interior/NW SNE under favorable
E/upslope flow off the water with a moderate LLJ. Rain then
overspreads the rest of the region this evening as the low moves
south of Long Island. As this low moves further east flow becomes N
then NW pulling in cooler air into the previously relatively mild
boundary layer. This cold advection combined with potential diabatic
cooling in any heavier bands of precipitation will be able to flip
precipitation over to a wet snow for the higher elevations in the
Berkshires and to a lesser extent the Worcester Hills. Outside of
these areas, a cold rain is expected. Fortunately precipitation
should be exiting/sinking south by late Friday so as the colder
overnight temps arrive precipitation should be coming to an end.
For this reason, while snow is expected to be confided to the high
elevations, can't rule out a period of light snow further south into
CT or the RI hills late in the day Friday though it is a low
probability scenario. Overall, this is expected to be a non-event
for most of the region, and a very low impact event in the high
elevations with accumulations of a coating (Worcester Hills) to a
few inches (Berkshires) most likely on grassy surfaces. Given the
trajectory of the wind on Friday, temperatures will struggle to get
out of the upper 30s in the high elevations and the mid to upper 40s
toward the south coast.
One more thing to note, with regard to coastal flooding potential.
While tides are not astronomically high, guidance does indicate
potential for ~1-1.5 ft of surge. While not an issue for most of the
coast, this would put Nantucket Harbor within reach of minor flood
levels during Friday afternoon's high tide. If this signal persists
coastal flood headlines may be needed.
KEY MESSAGE 2...High pressure brings cool and dry conditions back to
southern New England for a majority of the weekend and into next
week.
Latest round of guidance has trended the low pushing offshore into
Atlantic Canada earlier than previously anticipated... likely
sometime Saturday instead of Sunday. High pressure then builds over
the Great Lakes this weekend. The tighter pressure gradient will
allow blustery conditions to linger through Sunday, but the
strengthening high will mark the return of a dry period through the
start of the next work week. High temps slowly climb through the
early week... in the upper 40s Saturday to the mid 50s
Tuesday/Wednesday. The high pressure will also bring back nights of
radiational cooling, potentially dropping low temperatures into the
20s through mid week as well.
&&
.AVIATION /12Z THURSDAY THROUGH MONDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
12z TAF Update...
Thursday...High confidence.
VFR to start for most terminals, lowering to MVFR after 18Z
with -RA overspreading the region. IFR possible at ORH after
18z. NE winds 10-15 kts, then gusting 20-25 kts at times after
18z. Periods of 25-30 kt gusts possible across Cape and Island
terminals after 18z.
Thursday night...Moderate confidence.
MVFR/IFR in -RA, with -SN possible at ORH toward 12z. NE winds
10-15 kt gusting 20-30 kt.
Friday...Moderate confidence.
MVFR/IFR in -RA and -SN (for ORH). Precipitation exiting south
by 00z Sat.
KBOS Terminal...High confidence in TAF through 18z, then some
uncertainty on exacting timing arrival of MVFR and rain in the
afternoon.
KBDL Terminal...High confidence in TAF through 18z, then some
uncertainty on exacting timing arrival of MVFR and rain.
Outlook /Friday Night through Monday/...
Friday Night: Mainly VFR, with local IFR possible. Windy with
local gusts up to 30 kt. Slight chance SHRA.
Saturday: Mainly VFR, with local IFR possible. Breezy. Slight
chance RA.
Saturday Night: Mainly VFR, with local MVFR possible. Breezy.
Sunday: VFR. Breezy.
Sunday Night through Monday: VFR.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Through Friday night...
* Gale Watch for the open waters Thu night through Friday night
Low pressure will move off the mid-Atlantic coast over the waters
Thursday evening through Friday night. In response...the pressure
gradient will increase and Gale Watches are in effect for our open
waters Thu night through Fri night for the potential of N-NE wind
gusts up to 35 knots. Seas will also become quite rough. Small craft
advisories are also in effect for Boston Harbor/Narragansett Bay
during this time.
Outlook /Friday Night through Monday/...
Saturday: Low risk for Small Craft Advisory winds with gusts up
to 25 kt. Rough seas up to 8 ft. Chance of rain.
Saturday Night: Winds less than 25 kt. Rough seas up to 8 ft.
Chance of rain.
Sunday: Winds less than 25 kt. Areas of rough seas. Slight
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.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory from 6 PM this evening to 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 from 6 PM this evening to 7 PM EST Friday for
ANZ250-251-254-280-281.
&&
$$
DISCUSSION...BW/McMinn
AVIATION...BW/McMinn
MARINE...BW/McMinn
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: 1 Low
Current (Measured): 0.0 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.
0.00 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
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 Crescent (82%)
Moon set:
8:18am
Moon rise:
9:38pm