Lexington Weather
Lexington, Massachusetts, USA
- Few Clouds
-
57.7°F / 14.3°C
-
49.1°F
-
73%
- Calm, 10-min avg: Calm, gust: 3 mph
- 10 miles
- 0.00 in
Current Conditions [‒] Current Conditions [+]
57.7°F
14.3°C
Cool
Few Clouds
Today: Hi 67 °F
Tonight: Lo 40 °F
Dew Point:
49.1°F
Humidity:
73%
Barometer:
mb
Rain Rate: 0.00 in/hr
Rain Today: 0.00 in
Rain Thursday: 0.00 in
Visibility: 10 miles
Wind:
Now: Calm
Avg: Calm
Gusts: 3 mph
Forecast [‒] Forecast [+]
NWS Weather Forecast -
Today,
Tonight,
&
Saturday
through
Thursday Night
Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Fri Oct 9, 2026 12:51am EDT
Overview:
- Cool, quiet, and dry weather prevails through the first half of Sunday. Expect Highs in the 60s with a chilly start to Saturday morning, especially in the typical cold spots.
- The next quick moving round of rain comes Sunday afternoon and evening, continuing overnight and exiting by Monday morning.
- Quick round of rain around mid week, then dry weather returns by Thursday.
Today:
Sunny
Hi 67 °F
Sunny, with a high near 67. West wind 6 to 12 mph, with gusts as high as 31 mph.
Tonight:
Mostly Clear
Lo 40 °F
Mostly clear, with a low around 40. West wind 3 to 9 mph, with gusts as high as 26 mph.
Saturday:
Sunny
Hi 64 °F
Sunny, with a high near 64. Northwest wind 2 to 7 mph.
Saturday Night:
Partly Cloudy
Lo 45 °F
Partly cloudy, with a low around 45. Southeast wind around 1 mph.
Sunday:
Mostly Cloudy
Hi 66 °F
Mostly cloudy, with a high near 66. Southwest wind 1 to 7 mph.
Sunday Night:
Rain Showers
Lo 54 °F
Rain showers. Cloudy, with a low around 54. Southeast wind around 5 mph. Chance of precipitation is 90%.
Columbus Day:
Rain Showers then Mostly Cloudy
Hi 67 °F
Rain showers before 11am. Mostly cloudy, with a high near 67. North wind around 7 mph. Chance of precipitation is 80%.
Monday Night:
Partly Cloudy
Lo 53 °F
Partly cloudy, with a low around 53. North wind around 5 mph.
Tuesday:
Chance Rain Showers
Hi 66 °F
A chance of rain showers after 11am. Partly sunny, with a high near 66. South wind 3 to 8 mph. Chance of precipitation is 30%.
Tuesday Night:
Chance Rain Showers
Lo 51 °F
A chance of rain showers. Mostly cloudy, with a low around 51. West wind around 9 mph. Chance of precipitation is 40%.
Wednesday:
Chance Rain Showers
Hi 63 °F
A chance of rain showers before 2pm. Mostly sunny, with a high near 63. Northwest wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Wednesday Night:
Mostly Clear
Lo 46 °F
Mostly clear, with a low around 46. Northwest wind 6 to 9 mph.
Thursday:
Mostly Sunny
Hi 61 °F
Mostly sunny, with a high near 61. North wind around 6 mph.
Thursday Night:
Partly Cloudy
Lo 46 °F
Partly cloudy, with a low around 46. South wind around 5 mph.
NWS Hourly Forecast -
Today 10am through Sat 9pm
Issued by:
National Weather Service Boston / Norton, MA
Updated Fri Oct 9, 2026 12:51am EDT
10:00am
Dew Pt 44°F
W 9 mphPrecip: 1%
11:00am
Dew Pt 44°F
W 10 mphPrecip: 0%
12:00pm
Dew Pt 43°F
W 12 mphPrecip: 0%
1:00pm
Dew Pt 42°F
W 12 mphPrecip: 0%
2:00pm
Dew Pt 41°F
W 12 mphPrecip: 0%
3:00pm
Dew Pt 39°F
W 12 mphPrecip: 0%
4:00pm
Dew Pt 39°F
W 12 mphPrecip: 0%
5:00pm
Dew Pt 39°F
W 9 mphPrecip: 0%
6:00pm
Dew Pt 38°F
W 9 mphPrecip: 0%
7:00pm
Dew Pt 39°F
W 8 mphPrecip: 0%
8:00pm
Dew Pt 39°F
W 7 mphPrecip: 0%
9:00pm
Dew Pt 39°F
W 7 mphPrecip: 0%
10:00pm
Dew Pt 39°F
W 7 mphPrecip: 0%
11:00pm
Dew Pt 43°F
W 6 mphPrecip: 0%
12:00am
Dew Pt 43°F
Wind Chill: 46°F
W 6 mphPrecip: 0%
1:00am
Dew Pt 43°F
Wind Chill: 45°F
W 5 mphPrecip: 0%
2:00am
Dew Pt 43°F
Wind Chill: 44°F
W 5 mphPrecip: 0%
3:00am
Dew Pt 43°F
Wind Chill: 43°F
NW 3 mphPrecip: 0%
4:00am
Dew Pt 43°F
Wind Chill: 42°F
NW 3 mphPrecip: 0%
5:00am
Dew Pt 42°F
Wind Chill: 41°F
NW 3 mphPrecip: 0%
6:00am
Dew Pt 41°F
Wind Chill: 39°F
NW 3 mphPrecip: 0%
7:00am
Dew Pt 39°F
Wind Chill: 38°F
NW 3 mphPrecip: 0%
8:00am
Dew Pt 40°F
Wind Chill: 40°F
NW 5 mphPrecip: 0%
9:00am
Dew Pt 42°F
Wind Chill: 44°F
NW 5 mphPrecip: 0%
10:00am
Dew Pt 40°F
Wind Chill: 48°F
NW 6 mphPrecip: 0%
11:00am
Dew Pt 40°F
NW 7 mphPrecip: 0%
12:00pm
Dew Pt 39°F
NW 6 mphPrecip: 0%
1:00pm
Dew Pt 39°F
NW 6 mphPrecip: 0%
2:00pm
Dew Pt 38°F
NW 6 mphPrecip: 0%
3:00pm
Dew Pt 38°F
NW 5 mphPrecip: 0%
4:00pm
Dew Pt 38°F
NW 3 mphPrecip: 0%
5:00pm
Dew Pt 39°F
NW 2 mphPrecip: 0%
6:00pm
Dew Pt 39°F
NW 1 mphPrecip: 0%
7:00pm
Dew Pt 39°F
N 1 mphPrecip: 0%
8:00pm
Dew Pt 42°F
N 1 mphPrecip: 0%
9:00pm
Dew Pt 42°F
NE 1 mphPrecip: 0%
FORECAST DISCUSSION
Area Forecast Discussion
for Boston / Norton, MA
000
FXUS61 KBOX 091122
AFDBOX
Area Forecast Discussion
National Weather Service Boston/Norton MA
722 AM EDT Fri Oct 9 2026
.WHAT HAS CHANGED...
No significant changes to the forecast.
&&
.KEY MESSAGES...
- Cool, quiet, and dry weather prevails through the first half
of Sunday. Expect Highs in the 60s with a chilly start to
Saturday morning, especially in the typical cold spots.
- The next quick moving round of rain comes Sunday afternoon and
evening, continuing overnight and exiting by Monday morning.
- Quick round of rain around mid week, then dry weather returns by
Thursday.
&&
.DISCUSSION...
KEY MESSAGE 1...Cool, quiet, and dry weather prevails through the
first half of Sunday. Expect Highs in the 60s with a chilly start to
Saturday morning, especially in the typical cold spots.
A broad mid level trough slowly traverses overhead Friday as high
pressure ridging approaches from the west. This places SNE beneath a
NW 30-35 kt LLJ; with good mixing (bufkit showing to near 850mb)
expecting a gusty day today, much like Thursday. Otherwise,
beautiful, mostly sunny weather expected with highs in the mid 60s
and a mix of diurnal clouds. High pressure continues to expand and
move east, directly overhead by Saturday afternoon giving a very
nice start to the holiday weekend with sun, light winds, and highs
in the 60s. Something to watch will be how quickly that pressure
gradient weakens because light/calm winds overnight would allow for
efficient radiational cooling. Thus, leaned on MOS guidance for
Saturday morning low temperatures.
KEY MESSAGE 2...The next quick moving round of rain comes Sunday
afternoon and evening, continuing overnight and exiting by Monday
morning.
The main change from 24 hours ago is both a slightly quicker arrival
and exit of the rain. Guidance is in agreement that the moisture
left over from what used to be Hurricane Isaias will be pulled east
by a northern stream trough and quickly ushered through the mid
Atlantic and offshore. There is less agreement as to exactly how far
north the precip shield is, but continuing to expect southern New
England to be well within the area that will see rain. One one hand,
parts of the area (especially west) likely have to deal with rain
showers Sunday afternoon/evening. 8PM Sunday ensemble guidance
indicates a 80-90% chance of at least 0.01" rain for western MA/CT,
but only 40-50% for far eastern MA. On the other hand, by Monday
morning there's a good agreement the rain has exited east so it
should be a mostly overnight event. On the whole this looks to be a
fairly typical rainfall producing system for the region without
hazards from flooding or damaging winds. Guidance generally paints a
picture of a half inch for northern MA to 1+" along the south shore
in closer proximity to the better forcing and moisture. While EPS
ensemble probabilities of >1" of rain have increased to max 40-50%
along the immediate south coast, GEFS probs put the odds at
essentially NIL; needless to say, uncertainty remains on who will
see the most rain and how much.
KEY MESSAGE 3...Quick round of rain around mid week, then dry
weather returns by Thursday.
A break in the rain comes Monday into Tuesday under brief high
pressure ridging before another frontal system moves through
bringing a round of wet weather. Confidence in any timing or
placement details is low and will depend on how this holiday
weekend's system plays out but unsettled weather looks possible
around late Tuesday or Wednesday.
&&
.AVIATION /12Z FRIDAY THROUGH TUESDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
12z TAF Update:
Today...High confidence.
VFR conditions. W wind 10-15 kts gusting to 20 to 30 kts. Gusts
more consistently develop after 15Z with highest gusts this
afternoon. Diurnal cloud deck around 045 possible. Winds/gusts
diminish 22-00Z with westerly winds overnight becoming NW by
12Z Sat.
Saturday...High confidence.
VFR. NW winds 8-12 kts.
KBOS Terminal...High confidence in TAF.
KBDL Terminal...High confidence in TAF.
Outlook /Saturday Night through Tuesday/...
Saturday Night: VFR.
Sunday: VFR. Chance SHRA.
Sunday Night: MVFR/IFR conditions possible. Breezy. SHRA.
Columbus Day: Mainly VFR, with local IFR possible. Slight
chance SHRA.
Monday Night: VFR.
Tuesday: VFR. Chance SHRA.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Through Saturday: High confidence.
W winds will increase through the morning, peaking in the afternoon.
Expecting sustained winds 10-15 kts with gusts 20-25kts though some
gusts 25-30 kt are possible. Seas around 4 ft or less Friday for all
waters, with good visibility expected. High pressure overhead
Saturday leads to seas 2 ft or less with N winds 5-10 kts.
Outlook /Saturday Night through Tuesday/...
Saturday Night: Winds less than 25 kt.
Sunday: Winds less than 25 kt. Chance of rain showers.
Sunday Night: Winds less than 25 kt. Local rough seas. Rain
showers, slight chance of thunderstorms.
Columbus Day: Winds less than 25 kt. Rough seas up to 9 ft.
Chance of rain showers.
Monday Night: Winds less than 25 kt. Seas up to 5 ft.
Tuesday: Winds less than 25 kt. Seas up to 5 ft. Slight chance
of rain showers.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...None.
&&
$$
DISCUSSION...BW
AVIATION...BW/Mensch
MARINE...BW
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:
0.00 in
Rain Today:
0.00 in
Thursday:
0.06 in
October:
24.40 in
2026
Daily Extremes [‒] Daily Extremes [+]
10:03am
57.7°F
High today:
7:21am
50.0°F
Low today:
2:12pm
70.9°F
High Thursday:
12:59am
54.3°F
Low Thursday:
7:38am
48.4°F
Low wind chill today:
10:03am
49.1°F
High dew pt today:
11:29am
58.5°F
High dew pt Thursday:
9:02am
7 mph
Wind gust today:
8:14am
12 mph
Wind gust Thursday:
Alerts / Advisories [‒] Alerts / Advisories [+]
No alerts/warnings active for Southeast Middlesex County.
Sun / Moon [‒] Sun / Moon [+]
First Light:
6:23am
Sunrise:
6:51am
Sunset:
6:13pm
Twilight ends:
6:41pm
Daylight length:
11 hours 22 minutes
Phase:
Waning Crescent (1%)
Moon rise:
5:41am
Moon set:
5:30pm
Social Media - Mastodon [‒] Social Media - Mastodon [+]
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