Lexington, Massachusetts, USA
35.1°F
1.7°C
Cold
Clear
This Afternoon: Hi 68 °F
Tonight: Lo 42 °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 Oct 5, 2026 1:49pm EDT
- Mostly dry with continued fall temperatures. An early look at the holiday weekend favors dry weather, though late Sunday into Monday bears watching for rain.
Mostly Sunny
Hi 68 °F
Mostly sunny. High near 68, with temperatures falling to around 62 in the afternoon. West wind around 14 mph, with gusts as high as 28 mph.
Clear
Lo 42 °F
Clear, with a low around 42. West wind 7 to 12 mph, with gusts as high as 22 mph.
Sunny
Hi 58 °F
Sunny, with a high near 58. Northwest wind around 10 mph, with gusts as high as 22 mph.
Clear
Lo 38 °F
Clear, with a low around 38. West wind around 6 mph.
Sunny
Hi 65 °F
Sunny, with a high near 65. Southwest wind 3 to 10 mph.
Mostly Clear
Lo 54 °F
Mostly clear, with a low around 54. Southwest wind around 9 mph.
Sunny
Hi 72 °F
Sunny, with a high near 72. Southwest wind around 10 mph, with gusts as high as 21 mph.
Mostly Clear
Lo 50 °F
Mostly clear, with a low around 50. West wind around 7 mph.
Sunny
Hi 66 °F
Sunny, with a high near 66. West wind 6 to 9 mph.
Mostly Clear
Lo 47 °F
Mostly clear, with a low around 47. West wind around 7 mph.
Sunny
Hi 63 °F
Sunny, with a high near 63. Northwest wind 6 to 9 mph.
Mostly Clear
Lo 44 °F
Mostly clear, with a low around 44. West wind around 6 mph.
Sunny
Hi 65 °F
Sunny, with a high near 65. Southwest wind 3 to 9 mph.
Mostly Cloudy
Lo 53 °F
Mostly cloudy, with a low around 53. Southwest wind around 9 mph.
Issued by:
National Weather Service Boston / Norton, MA
Updated Mon Oct 5, 2026 1:49pm EDT

W 12 mph
W 12 mph
W 10 mph
W 9 mph
W 9 mph
NW 8 mph
NW 7 mph
NW 7 mph
W 7 mph
W 7 mph
W 8 mph
W 8 mph
W 9 mph
W 9 mph
W 9 mph
NW 9 mph
NW 10 mph
NW 10 mph
NW 10 mph
NW 10 mph
NW 10 mph
NW 10 mph
NW 10 mph
NW 9 mph
W 8 mph
W 6 mph
W 6 mph
W 5 mph
W 5 mph
W 5 mph
W 5 mph
W 3 mph
W 3 mph
W 3 mph
W 3 mph
W 3 mph
000
FXUS61 KBOX 051840
AFDBOX
Area Forecast Discussion
National Weather Service Boston/Norton MA
240 PM EDT Mon Oct 5 2026
.WHAT HAS CHANGED...
No significant changes to the forecast.
&&
.KEY MESSAGES...
- Mostly dry with continued fall temperatures. An early look at
the holiday weekend favors dry weather, though late Sunday
into Monday bears watching for rain.
&&
.DISCUSSION...
KEY MESSAGE 1...Mostly dry with continued fall temperatures. An
early look at the holiday weekend favors dry weather, though
late Sunday into Monday bears watching for rain.
Dissipating showers moving east across southern New England this
afternoon could result in a couple of hours with stronger gusts
than what we have seen so far today. Peak wind gusts up to
35-40 mph are possible before sunset, but most will only be
25-30 mph.
Turning cooler tonight into Tuesday night, with below normal
temperatures expected. Patchy frost will be possible tonight
towards sheltered areas of the east slopes of the Berkshires.
Winds will be too high to permit much frost. This should not be
the case for Tuesday night. Thinking more widespread
opportunities for frost across the normally colder locations of
MA and northern CT.
A quiet stretch of fall weather is expected through much of the
period as high pressure remains the dominant feature. A
vertically stacked low near Hudson Bay will send a few subtle
shortwaves through New England Thursday and Friday. Limited
moisture should preclude significant rainfall, though a spot
shower cannot be ruled out. Otherwise, dry weather prevails
through the start of the holiday weekend. Forecast uncertainty
increases late Sunday into Columbus Day and will depend largely
on potential tropical development over the Bay of Campeche. The
NHC currently gives AL92 an 80 percent chance of formation over
the next 7 days. Some guidance brings remnant tropical moisture
north into southern New England, while other solutions keep it
suppressed to our south. Plenty of time to watch trends, with no
reason to alter outdoor plans at this point. Temperatures remain
fall-like with highs mainly in the lower to middle 60s, except
upper 60s to lower 70s Thursday. Overnight lows are mostly in
the upper 40s and 50s, though cooler upper 30s to middle 40s are
possible Saturday night.
&&
.AVIATION /18Z MONDAY THROUGH SATURDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Through Tuesday Night...High confidence.
VFR with gusty W winds into tonight. Brief period of stronger
gusts as a band of dissipating showers passes by. Gusty winds
with more of a NW turn Tuesday. Gusty winds subside towards
Tuesday night.
KBOS Terminal...High confidence in TAF
KBDL Terminal...High confidence in TAF.
Outlook /Wednesday through Saturday/...
Wednesday through Thursday: VFR. Breezy.
Thursday Night through Saturday: VFR.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Through Tuesday Night...High confidence.
A cold front crosses the waters this evening. High pressure then
moves from the central Appalachians to the Mid Atlantic coast
Tuesday. Seas and winds begin to diminish late tonight into
Tuesday.
Outlook /Wednesday through Saturday/...
Wednesday: Winds less than 25 kt.
Wednesday Night through Thursday: Winds less than 25 kt. Seas
locally approaching 5 ft.
Thursday Night: Winds less than 25 kt. Areas of seas
approaching 5 ft.
Friday: Winds less than 25 kt. Seas locally approaching 5 ft.
Friday Night through Saturday: Winds less than 25 kt.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 9 PM EDT this evening for ANZ230-
236.
Small Craft Advisory until 8 AM EDT Tuesday for ANZ231>235-237-
251.
Small Craft Advisory until 1 PM EDT Tuesday for ANZ250-254.
Small Craft Advisory until 1 PM EDT Tuesday for ANZ255-256.
&&
$$
DISCUSSION...Belk/Dooley
AVIATION...Belk/Dooley
MARINE...Belk/Dooley
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
Sunday:
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 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:
Waning Crescent (82%)
Moon set:
8:18am
Moon rise:
9:38pm