Lexington Weather
Lexington, Massachusetts, USA
- Light rain, Overcast
-
53.1°F / 11.7°C
-
49.6°F
-
88%
- Calm, 10-min avg: Calm, gust: None
-
- 7 miles
- 0.14 in
National Weather Service Forecast for:
Lexington, MA
Issued by:
National Weather Service Boston / Norton, MA
Tonight through Sunday
Point Forecast Updated Sun Oct 11, 2026 3:51pm EDT
Overview:
- Rain leftover from Hurricane Isaias continues through tonight
before moving offshore Monday followed by a quick warm up in
temperatures.
- A few rounds of showers this week, first later Tuesday into
Tuesday night, then around Friday into Saturday.
Tonight:
Rain Showers
Lo 51 °F
Rain showers likely before 8pm, then rain showers and patchy fog between 8pm and 5am, then patchy fog and a slight chance of rain showers. Cloudy, with a low around 51. East wind 2 to 6 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Columbus Day:
Patchy Fog then Mostly Sunny
Hi 70 °F
Patchy fog before 11am. Mostly sunny, with a high near 70. North wind 2 to 6 mph.
Monday Night:
Mostly Cloudy
Lo 52 °F
Mostly cloudy, with a low around 52. North wind 2 to 7 mph.
Tuesday:
Chance Rain Showers
Hi 64 °F
Patchy fog between 8am and 9am, then a chance of rain showers. Cloudy, with a high near 64. Southeast wind around 7 mph. Chance of precipitation is 50%.
Tuesday Night:
Showers And T-Storms Likely
Lo 58 °F
A chance of rain showers before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 58. South wind around 8 mph. Chance of precipitation is 60%.
Wednesday:
Mostly Sunny
Hi 73 °F
Mostly sunny, with a high near 73. West wind around 10 mph, with gusts as high as 22 mph.
Wednesday Night:
Partly Cloudy
Lo 50 °F
Partly cloudy, with a low around 50. Northwest wind around 8 mph.
Thursday:
Mostly Sunny
Hi 61 °F
Mostly sunny, with a high near 61. Northwest wind 8 to 12 mph, with gusts as high as 23 mph.
Thursday Night:
Partly Cloudy then Slight Chance Rain Showers
Lo 43 °F
A slight chance of rain showers after 5am. Partly cloudy, with a low around 43. North wind 3 to 7 mph.
Friday:
Rain Showers Likely
Hi 61 °F
Rain showers likely. Partly sunny, with a high near 61. Southeast wind 3 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Friday Night:
Rain Showers Likely
Lo 45 °F
Rain showers likely. Mostly cloudy, with a low around 45. Southwest wind 9 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Saturday:
Chance Rain Showers
Hi 54 °F
A chance of rain showers before 3pm. Partly sunny, with a high near 54. West wind 14 to 17 mph, with gusts as high as 37 mph. Chance of precipitation is 30%.
Saturday Night:
Partly Cloudy
Lo 35 °F
Partly cloudy, with a low around 35. Northwest wind 10 to 15 mph, with gusts as high as 32 mph.
Sunday:
Mostly Sunny
Hi 51 °F
Mostly sunny, with a high near 51. Northwest wind around 12 mph, with gusts as high as 25 mph.
Tonight 6pm through Tue 5am EDT
Updated Sun Oct 11, 2026 3:51pm EDT
6:00pm
Dew Pt 50°F
SE 2 mphPrecip: 61%
Rain: 0.01 in
7:00pm
Dew Pt 51°F
SE 2 mphPrecip: 72%
Rain: 0.01 in
8:00pm
Dew Pt 52°F
E 2 mphPrecip: 83%
Rain: 0.1 in
9:00pm
Dew Pt 52°F
E 3 mphPrecip: 87%
Rain: 0.1 in
10:00pm
Dew Pt 52°F
E 3 mphPrecip: 92%
Rain: 0.11 in
11:00pm
Dew Pt 54°F
E 3 mphPrecip: 96%
Rain: 0.11 in
12:00am
Dew Pt 54°F
E 3 mphPrecip: 91%
Rain: 0.11 in
1:00am
Dew Pt 53°F
NE 5 mphPrecip: 81%
Rain: 0.09 in
2:00am
Dew Pt 53°F
NE 5 mphPrecip: 72%
Rain: 0.08 in
3:00am
Dew Pt 53°F
NE 6 mphPrecip: 55%
Rain: 0.05 in
4:00am
Dew Pt 52°F
N 6 mphPrecip: 36%
Rain: 0.02 in
5:00am
Dew Pt 53°F
N 6 mphPrecip: 15%
6:00am
Dew Pt 53°F
N 6 mphPrecip: 9%
7:00am
Dew Pt 52°F
N 6 mphPrecip: 7%
8:00am
Dew Pt 53°F
N 6 mphPrecip: 5%
9:00am
Dew Pt 55°F
N 5 mphPrecip: 4%
10:00am
Dew Pt 56°F
N 5 mphPrecip: 4%
11:00am
Dew Pt 57°F
N 5 mphPrecip: 3%
12:00pm
Dew Pt 58°F
NW 5 mphPrecip: 2%
1:00pm
Dew Pt 59°F
NW 5 mphPrecip: 1%
2:00pm
Dew Pt 59°F
NW 5 mphPrecip: 1%
3:00pm
Dew Pt 59°F
NW 3 mphPrecip: 1%
4:00pm
Dew Pt 60°F
NW 3 mphPrecip: 1%
5:00pm
Dew Pt 61°F
NW 2 mphPrecip: 2%
6:00pm
Dew Pt 60°F
NW 2 mphPrecip: 3%
7:00pm
Dew Pt 58°F
NW 2 mphPrecip: 4%
8:00pm
Dew Pt 57°F
N 3 mphPrecip: 2%
9:00pm
Dew Pt 57°F
N 3 mphPrecip: 2%
10:00pm
Dew Pt 56°F
N 5 mphPrecip: 0%
11:00pm
Dew Pt 56°F
N 5 mphPrecip: 0%
12:00am
Dew Pt 55°F
NE 5 mphPrecip: 1%
1:00am
Dew Pt 55°F
NE 6 mphPrecip: 2%
2:00am
Dew Pt 54°F
NE 6 mphPrecip: 7%
3:00am
Dew Pt 54°F
NE 7 mphPrecip: 7%
4:00am
Dew Pt 53°F
NE 7 mphPrecip: 6%
5:00am
Dew Pt 53°F
NE 7 mphPrecip: 9%
FORECAST DISCUSSION
Area Forecast Discussion
for Boston / Norton, MA
000
FXUS61 KBOX 111928
AFDBOX
Area Forecast Discussion
National Weather Service Boston/Norton MA
328 PM EDT Sun Oct 11 2026
.WHAT HAS CHANGED...
No significant changes.
&&
.KEY MESSAGES...
- Rain leftover from Hurricane Isaias continues through tonight
before moving offshore Monday followed by a quick warm up in
temperatures.
- A few rounds of showers this week, first later Tuesday into
Tuesday night, then around Friday into Saturday.
&&
.DISCUSSION...
KEY MESSAGE 1...Rain leftover from Hurricane Isaias continues
through tonight before moving offshore Monday followed by a
quick warm up in temperatures.
The remnants of Hurricane Isaias continue to spread into
eastern MA this afternoon as the center of the low strengthens
and passes north of the 40/70 benchmark later tonight. Starting
to see some heavier rain bands setting up across southern CT and
RI, slowly pushing north and east into MA, and see some
rainfall rates of up to 0.5 inch per hour could be possible at
times. Expecting moderate to heavy rain through midnight before
lightening up in the early morning hours Monday, then finally
pushing offshore late Monday morning or early afternoon.
Widespread rainfall totals of 0.75"-1" is expected, as high as
1.5" along the immediate south coast.
Skies will clear quickly behind the low thanks to some mid-
level dry air moving in from the north, allowing for a quick
warm-up tomorrow afternoon. Monday's high temperatures rise into
the upper 60s, possibly the low 70s in the CT River Valley.
KEY MESSAGE 2...A few rounds of showers this week, first later
Tuesday into Tuesday night, then around Friday into Saturday.
Our region should then get clipped by a pair of low pressures,
each taking a different track. The first should pass from the
Great Lakes across northern New England Tuesday into Tuesday
night. The risk for showers arrives across northern MA during
the morning, then gradually moves south Tuesday night as the
associated cold front approaches. Drying out Wednesday as this
front finally moves farther offshore during the day. Expecting
Wednesday to have above normal temperatures prior to this cold
front moving by.
High pressure over eastern Canada should briefly take over our
weather Wednesday night into Thursday night. Temperatures
expected to trend below normal for Thursday.
The forecast for next Friday and Saturday still has timing
uncertainties. That said, the latest guidance suite started to
converge toward a common track and timing solution. The most
likely period for rainfall still looks to be between noon Friday
and midnight Saturday. Some questions to how quickly it dries
out on Saturday, but most of the guidance suite is more
progressing than the GFS. Favored the consensus solution in this
regard.
Turning noticeably cooler this weekend, especially Saturday
night into Sunday.
&&
.AVIATION /19Z SUNDAY THROUGH FRIDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
18Z TAF Update:
Through Tonight: High confidence.
VFR much of the day despite rain already spreading through the
region. CIGS lower to MVFR then IFR from west to east starting
after 21Z for western terminals and 00z for eastern terminals.
S/SE winds 5-10 kts with RA arriving from west to east generally
between 16Z-21Z. RA continues overnight, exiting from west to
east 10-14z.
Monday: High confidence.
N winds 5-10 kts. IFR cigs to start, lifting to VFR from west
to east after 15z except for FMH/HYA/ACK which may linger
through 21Z.
KBOS Terminal...High confidence in TAF. Light SE winds should
back to ESE/E before -RA and sub-VFR ceilings develop late this
afternoon.
KBDL Terminal...High confidence in TAF.
Outlook /Tuesday through Friday/...
Tuesday: Mainly VFR, with local IFR possible. Chance SHRA.
Tuesday Night: Mainly VFR, with local IFR possible. Breezy.
Chance SHRA, slight chance TSRA.
Wednesday through Thursday: VFR. Breezy.
Thursday Night: VFR. Slight chance SHRA.
Friday: Mainly VFR, with local IFR possible. Windy with local
gusts up to 30 kt. Chance SHRA.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Through Monday: High confidence.
The remnants of Hurricane Isaias are currently working their
way across the southern waters. Seas build 5 to 10 ft and wind
gusts 23 to 30 knots by tonnight. SCAs are in effect starting
8PM this evening for the southern waters, 15-20 kts with gusts
to 25kt possible, especially on the southern outer waters. Seas
6-9 ft on southern waters, 3-6 ft on the eastern waters.
Outlook /Tuesday through Friday/...
Tuesday: Winds less than 25 kt. Seas up to 5 ft. Chance of rain
showers.
Tuesday Night: Low risk for Small Craft Advisory winds with
gusts up to 30 kt. Seas up to 5 ft. Chance of rain showers,
slight chance of thunderstorms.
Wednesday: Low risk for Small Craft Advisory winds with gusts
up to 25 kt. Areas of rough seas.
Wednesday Night: Winds less than 25 kt. Seas up to 5 ft.
Thursday: Low risk for Small Craft Advisory winds with gusts up
to 30 kt. Local rough seas.
Thursday Night: Winds less than 25 kt. Areas of seas
approaching 5 ft.
Friday: Low risk for Small Craft Advisory winds with local
gusts up to 30 kt. Seas up to 5 ft. Chance of rain showers.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory from 8 PM this evening to 11 PM EDT
Monday for ANZ235-237-254>256.
&&
$$
DISCUSSION...Belk/McMinn
AVIATION...Belk/McMinn
MARINE...Belk/McMinn
Meta data
Point forecast:
https://api.weather.gov/gridpoints/BOX/65,104/forecast
Zone forecast:
https://api.weather.gov/zones/forecast/MAZ014/forecast
Hourly forecast:
https://api.weather.gov/gridpoints/BOX/65,104/forecast/hourly
Hourly detail:
https://api.weather.gov/gridpoints/BOX/65,104
Point detail:
https://api.weather.gov/points/42.4399,-71.2405
Alerts:
https://api.weather.gov/alerts?status=actual&point=42.4399,-71.2405
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