Lexington, Massachusetts, USA
35.1°F
1.7°C
Cold
Clear
This Afternoon: Hi 62 °F
Tonight: Lo 41 °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 Friday: 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 Sat Oct 10, 2026 3:28pm EDT
- Pleasant conditions through Sunday morning. Rain arrives Sunday afternoon and lasts through the night.
- Becoming drier Monday. Round of showers Tuesday into Wednesday morning, then dry through Thursday night. Another round of showers possible some time Friday into Saturday.
- Quick round of rain around mid week, then dry weather returns by Thursday.
Sunny
Hi 62 °F
Sunny, with a high near 62. Northwest wind around 5 mph.
Partly Cloudy
Lo 41 °F
Partly cloudy, with a low around 41. South wind around 1 mph.
Mostly Cloudy then Slight Chance Rain Showers
Hi 64 °F
A slight chance of rain showers after 4pm. Mostly cloudy, with a high near 64. South wind 1 to 7 mph. Chance of precipitation is 20%.
Rain Showers
Lo 53 °F
Rain showers likely before 9pm, then rain showers and patchy fog. Cloudy, with a low around 53. East wind 3 to 7 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Chance Rain Showers then Partly Sunny
Hi 68 °F
A chance of rain showers and patchy fog before 7am, then patchy fog and a slight chance of rain showers between 7am and 9am. Partly sunny, with a high near 68. North wind 2 to 7 mph. Chance of precipitation is 40%.
Partly Cloudy
Lo 51 °F
Partly cloudy, with a low around 51. North wind 2 to 7 mph.
Mostly Cloudy then Chance Rain Showers
Hi 61 °F
A chance of rain showers after 2pm. Mostly cloudy, with a high near 61. East wind around 7 mph. Chance of precipitation is 30%.
Showers And T-Storms Likely
Lo 55 °F
A chance of rain showers before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 55. South wind around 9 mph. Chance of precipitation is 70%.
Chance Rain Showers
Hi 69 °F
A chance of rain showers before 3pm. Partly sunny, with a high near 69. West wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Partly Cloudy
Lo 48 °F
Partly cloudy, with a low around 48. Northwest wind around 8 mph.
Sunny
Hi 61 °F
Sunny, with a high near 61. Northwest wind around 9 mph.
Mostly Clear
Lo 45 °F
Mostly clear, with a low around 45. Northwest wind around 6 mph.
Chance Rain Showers
Hi 60 °F
A chance of rain showers after 8am. Partly sunny, with a high near 60. Southwest wind 5 to 9 mph. Chance of precipitation is 40%.
Chance Rain Showers
Lo 49 °F
A chance of rain showers. Mostly cloudy, with a low around 49. Southwest wind 7 to 10 mph.
Issued by:
National Weather Service Boston / Norton, MA
Updated Sat Oct 10, 2026 3:28pm EDT

NW 2 mph
NW 1 mph
NE 1 mph
E 1 mph
E 1 mph
SE 1 mph
S 1 mph
S 1 mph
S 1 mph
SW 1 mph
SW 1 mph
SW 1 mph
SW 1 mph
SW 1 mph
S 2 mph
S 2 mph
S 2 mph
S 3 mph
S 5 mph
S 6 mph
S 6 mph
S 7 mph
S 6 mph
S 6 mph
S 5 mph
S 3 mph
SE 3 mph
SE 3 mph
E 3 mph
E 3 mph
E 3 mph
E 3 mph
NE 5 mph
NE 5 mph
NE 6 mph
NE 6 mph
000
FXUS61 KBOX 101957
AFDBOX
Area Forecast Discussion
National Weather Service Boston/Norton MA
357 PM EDT Sat Oct 10 2026
.WHAT HAS CHANGED...
Small Craft Advisories have been issued starting 8PM Sunday
evening for the southern waters. Potential for rain to last a
bit longer Monday, especially across the south coast, Cape and
Islands.
&&
.KEY MESSAGES...
- Pleasant conditions through Sunday morning. Rain arrives
Sunday afternoon and lasts through the night.
- Becoming drier Monday. Round of showers Tuesday into Wednesday
morning, then dry through Thursday night. Another round of
showers possible some time Friday into Saturday.
- Quick round of rain around mid week, then dry weather returns
by Thursday.
&&
.DISCUSSION...
KEY MESSAGE 1...Pleasant conditions through Sunday morning.
Rain arrives Sunday afternoon and lasts through the night.
Pleasant and dry conditions continue through a good portion of
Sunday, with partly cloudy skies and low winds through tonight.
Expecting to see some radiational cooling tonight with calm
winds, but light cloud cover will limit just how far
temperatures will drop.... overnight lows likely bottom out in
low 40s for most, upper 30s in the higher elevations.
Attention then turns to Sunday afternoon and evening as the
remnants of Hurricane Isaias make their way north and east with
the jet stream. As it exits off the DelMarVa coast and enter our
waters south of the Islands, it's expected to strengthen and
pass north of the 40/70 benchmark. PWATs will likely surge to
near 2.0", mostly along the south coast, Cape, and Islands. With
rain arriving Sunday afternoon (early PM for the interior,
later PM for RI and eastern MA) and lingering into Monday,
rainfall totals will likely be in the 0.75 inch to 1.0 inch
range. It's possible some heavier rain bands set up, but
confidence is low on where or when exactly those could develop;
therefore, some areas could see local higher rainfall totals...
possibly up to 1.5 inches across the south coast, Cape, and
Islands. Thankfully, the bulk of the LLJ will be kept aloft and
offshore, so the worst of the winds will be kept offshore and on
the order of 23 to 30 knots.
KEY MESSAGE 2...The next quick moving round of rain comes
Sunday afternoon and evening, continuing overnight and exiting
Monday morning.
Low pressure slowly moves away from southern New England
Monday. This will gradually bring an end to our showers from
northwest to southeast. Still some disagreement on how quickly
it all ends. The GFS remains on the more progressive side of the
solution envelope. The most likely area for showers to linger
longer will be towards the Cape and islands. Further adjustments
to the timing are possible with later forecasts.
Our region then has a brief drier period Monday night into
Tuesday morning.
KEY MESSAGE 3...Quick round of rain around mid week, then dry
weather returns by Thursday.
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.
High pressure over eastern Canada should briefly take over our
weather Wednesday night into Thursday night.
The forecast for next Friday and Saturday is uncertain. A low
pressure moving east across Canada could swing its associated
fronts across our region during this time. The issue continues
to be one of timing. This low pressure is quite distant from
southern New England. Thinking a slower onset timing is more
likely to develop with later forecasts given a high pressure
over the North Atlantic. Then there is the question of how
quickly it dries out on Saturday. We should see a period of
showers some time Friday into Saturday.
&&
.AVIATION /19Z SATURDAY THROUGH THURSDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
18Z update...
Today and Tonight: High confidence.
VFR. NW/NNW winds for much of day at 6-10 kts. Winds shift to
the NE, then around to the ESE/SE after 20Z. Winds turn more
S/SSW into Sunday after 03Z while winds stay SE for the
Cape/Island terminals less than 8 kts.
Sunday and Sunday Night: High confidence.
VFR. S/SE winds 5-10 kts with RA arriving from west to east
generally between 16Z-20Z. MVFR ceilings and -SHRA overspread
the region from west to east 21z-24z.
KBOS Terminal...High confidence in TAF.
KBDL Terminal...High confidence in TAF.
Outlook /Monday through Thursday/...
Columbus Day: Mainly VFR, with local IFR possible. Breezy.
Monday Night: Mainly VFR, with local MVFR possible.
Tuesday: Mainly VFR, with areas MVFR possible. Slight chance
SHRA.
Tuesday Night: Mainly VFR, with local IFR possible. Breezy.
Chance SHRA, slight chance TSRA.
Wednesday: VFR. Breezy. Slight chance SHRA.
Wednesday Night through Thursday: VFR. Breezy.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Through Sunday Night: High confidence.
Winds 10-15 kt today become light northeasterly late this
evening into tonight as high pressure approaches. Seas 3 ft or
less all waters. Sunday winds increase again ahead of
approaching low pressure, S/SW 10-15 kts gusting 15-20 kts. The
remnants of Hurricane Isaias arrive Sundary PM, building seas 5
to 10 ft and wind gusts 23 to 30 knots by Sunday night. SCAs
have been issued starting 8PM Sunday evening for the southern
waters, including coastal RI waters.
Outlook /Monday through Thursday/...
Columbus Day: Winds less than 25 kt. Rough seas up to 9 ft.
Slight chance of rain showers.
Monday Night: Winds less than 25 kt. Areas of rough seas.
Tuesday: Winds less than 25 kt. Seas up to 5 ft.
Tuesday Night: Low risk for Small Craft Advisory winds with
gusts up to 25 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. Chance of rain showers.
Wednesday Night: Low risk for Small Craft Advisory winds with
gusts up to 25 kt. Seas up to 5 ft. Slight chance of rain
showers.
Thursday: Low risk for Small Craft Advisory winds with gusts up
to 25 kt. Seas up to 5 ft.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory from 8 PM Sunday to 8 PM EDT Monday for
ANZ235-237-254>256.
&&
$$
DISCUSSION...Belk/McMinn
AVIATION...Belk/McMinn
MARINE...Belk/McMinn
Radar images courtesy Weather Underground / Intellicast.
UV Index forecast high for today: 4 Medium
Current (Measured): 0.0 None
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
Friday:
0.01 in
October:
1.26 in
2026
1:17pm
36.1°F
High today:
12:00am
25.2°F
Low today:
2:28pm
30.4°F
High Friday:
7:11am
16.2°F
Low Friday:
12:00am
25.2°F
Low wind chill today:
7:11am
16.2°F
Low wind chill Friday:
1:17pm
33.3°F
High dew pt today:
11:56pm
20.7°F
High dew pt Friday:
None
Wind gust today:
None
Wind gust Friday:
No alerts/warnings active for Southeast Middlesex County.
First Light:
6:11am
Sunrise:
6:39am
Sunset:
5:19pm
Twilight ends:
5:47pm
Daylight length:
10 hours 39 minutes
Phase:
New Moon (82%)
Moon set:
8:18am
Moon rise:
9:38pm