Lexington, Massachusetts, USA
35.1°F
1.7°C
Cold
Clear
This Afternoon: Hi 75 °F
Tonight: Lo 47 °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 Sunday: 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 Mon Sep 14, 2026 1:55pm EDT
- Dry with below normal temperatures through Tuesday night.
- Above normal temps return Wed through the end of the week with high temps mainly in the 70s to near 80. A few showers possible sometime late Thu into early Fri...But dry weather dominates.
Sunny
Hi 75 °F
Sunny, with a high near 75. Northwest wind around 10 mph, with gusts as high as 21 mph.
Clear
Lo 47 °F
Clear, with a low around 47. North wind 3 to 8 mph.
Sunny
Hi 69 °F
Sunny, with a high near 69. East wind around 5 mph.
Partly Cloudy
Lo 52 °F
Partly cloudy, with a low around 52. South wind around 5 mph.
Mostly Sunny
Hi 79 °F
Mostly sunny, with a high near 79. Southwest wind around 7 mph.
Partly Cloudy
Lo 61 °F
Partly cloudy, with a low around 61. Southwest wind around 5 mph.
Mostly Sunny
Hi 76 °F
Mostly sunny, with a high near 76. Southeast wind around 6 mph.
Chance Rain Showers
Lo 63 °F
A chance of rain showers after 7pm. Mostly cloudy, with a low around 63. Southwest wind around 6 mph. Chance of precipitation is 50%.
Chance Rain Showers then Mostly Sunny
Hi 77 °F
A chance of rain showers before 8am. Mostly sunny, with a high near 77. North wind around 7 mph. Chance of precipitation is 30%.
Partly Cloudy
Lo 55 °F
Partly cloudy, with a low around 55. North wind around 5 mph.
Mostly Sunny then Slight Chance Rain Showers
Hi 72 °F
A slight chance of rain showers after 5pm. Mostly sunny, with a high near 72. East wind around 6 mph.
Chance Rain Showers
Lo 57 °F
A chance of rain showers. Mostly cloudy, with a low around 57. South wind around 7 mph. Chance of precipitation is 40%.
Chance Rain Showers
Hi 72 °F
A chance of rain showers. Mostly cloudy, with a high near 72. West wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Chance Rain Showers
Lo 55 °F
A chance of rain showers before 4am. Mostly cloudy, with a low around 55. North wind 5 to 8 mph.
Issued by:
National Weather Service Boston / Norton, MA
Updated Mon Sep 14, 2026 5:04am EDT

NW 16 mph
NW 15 mph
NW 15 mph
N 14 mph
N 12 mph
N 9 mph
N 7 mph
N 8 mph
N 7 mph
N 7 mph
N 6 mph
N 6 mph
NE 5 mph
NE 5 mph
N 5 mph
N 3 mph
NE 2 mph
E 1 mph
0 mph
E 2 mph
E 5 mph
E 7 mph
E 7 mph
E 7 mph
E 7 mph
E 8 mph
E 8 mph
SE 9 mph
SE 8 mph
SE 8 mph
SE 7 mph
SE 7 mph
S 6 mph
S 6 mph
S 5 mph
S 3 mph
000
FXUS61 KBOX 141734
AFDBOX
Area Forecast Discussion
National Weather Service Boston/Norton MA
134 PM EDT Mon Sep 14 2026
.WHAT HAS CHANGED...
No significant changes to the forecast.
&&
.KEY MESSAGES...
- Dry with below normal temperatures through Tuesday night.
- Above normal temps return Wed through the end of the week with
high temps mainly in the 70s to near 80. A few showers possible
sometime late Thu into early Fri...But dry weather dominates.
&&
.DISCUSSION...
KEY MESSAGE 1...Dry with below normal temperatures through
Tuesday night.
A large high pressure arrives from the west tonight. Gusty winds
subside around sunset, then become light and variable late this
evening. Expecting decent radiational cooling conditions,
leading to low temperatures about 5-10 degrees below normal. The
cooler conditions continue into Tuesday night with light E to SE
winds. This high pressure should be over the North Atlantic
Tuesday night, shifting winds more from the S to SW.
KEY MESSAGE 2...Above normal temps return Wed through the end of the
week with high temps mainly in the 70s to near 80. A few showers
possible sometime late Thu into early Fri...But dry weather
dominates.
Upper trough shifts east of the region allowing warmer mid level air
to advect in from the west. This will bring a return to above normal
temperatures in the Wed through Fri time frame. High temperatures
will be mainly in the 70s to near 80. A shortwave/cold front may
bring a few showers to the region sometime late Thu into early Fri.
However...a dry/tranquil weather pattern will dominate most of the
week.
&&
.AVIATION /18Z MONDAY THROUGH SATURDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Through 00Z...High confidence.
VFR with gusty NW to N winds. Gusts up to 25 kt. Winds diminish
toward sunset.
Tonight...High confidence.
Winds becoming calm/light from a N direction except N-NE at 5
to 15 knots along the immediate coast, Cape and Islands.
Tuesday...High confidence.
VFR. NE to E winds 5-10 kt becoming S to SE along portions of
the immediate coast.
Tuesday night...High confidence.
VFR. Winds becoming light S to SW.
KBOS Terminal...High confidence in TAF.
KBDL Terminal...High confidence in TAF.
Outlook /Wednesday through Saturday/...
Wednesday through Wednesday Night: VFR.
Thursday: Mainly VFR, with local MVFR possible. Chance SHRA.
Thursday Night: VFR. Chance SHRA.
Friday through Friday Night: VFR.
Saturday: VFR. Slight chance SHRA.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
High pressure moves over the waters late Tuesday, then offshore
Tuesday night. Gusty NW to N winds diminish towards sunset
tonight. Expecting relatively light winds and seas through
Tuesday night. Marginal Small Craft Advisory conditions will end
later this afternoon. The existing headlines may be canceled
early. Will continue to monitor through this afternoon.
Outlook /Wednesday through Saturday/...
Wednesday through Thursday: Winds less than 25 kt.
Thursday Night: Winds less than 25 kt. Chance of rain showers.
Friday: Winds less than 25 kt. Seas locally approaching 5 ft.
Slight chance of rain showers.
Friday Night: Winds less than 25 kt. Seas locally approaching
5 ft.
Saturday: Winds less than 25 kt.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 2 AM EDT Tuesday for ANZ231>235-237-
250-254>256.
&&
$$
DISCUSSION...Belk/Hrencecin
AVIATION...Belk/Hrencecin
MARINE...Belk/Hrencecin
Radar images courtesy Weather Underground / Intellicast.
UV Index forecast high for today: 6 High
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
Sunday:
0.01 in
September:
1.26 in
2026
1:17pm
36.1°F
High today:
12:00am
25.2°F
Low today:
2:28pm
30.4°F
High Sunday:
7:11am
16.2°F
Low Sunday:
12:00am
25.2°F
Low wind chill today:
7:11am
16.2°F
Low wind chill Sunday:
1:17pm
33.3°F
High dew pt today:
11:56pm
20.7°F
High dew pt Sunday:
None
Wind gust today:
None
Wind gust Sunday:
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:
Waxing Crescent (82%)
Moon set:
8:18am
Moon rise:
9:38pm