Lexington, Massachusetts, USA
35.1°F
1.7°C
Cold
Clear
Overnight: Lo 33 °F
Monday: Hi 68 °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 26, 2026 1:40am EDT
- Prolonged stretch of dry weather across southern New England, likely lasting through Halloween, with a potential transition toward unsettled weather in early November. Mild temperatures today, followed by a brief cooldown Tuesday and Wednesday before warmer weather returns late in the week. Temperatures trend closer to seasonable levels over the weekend.
Patchy Frost
Lo 33 °F
Patchy frost after 4am. Clear, with a low around 33. West wind around 6 mph.
Patchy Frost then Sunny
Hi 68 °F
Patchy frost before 9am. Sunny, with a high near 68. West wind around 7 mph.
Mostly Cloudy
Lo 42 °F
Mostly cloudy, with a low around 42. Northwest wind 6 to 9 mph.
Sunny
Hi 55 °F
Sunny, with a high near 55. North wind 3 to 8 mph.
Widespread Frost
Lo 28 °F
Widespread frost after 11pm. Clear, with a low around 28. Northwest wind around 3 mph.
Widespread Frost then Sunny
Hi 58 °F
Widespread frost before 10am. Sunny, with a high near 58. West wind around 3 mph.
Mostly Clear
Lo 41 °F
Mostly clear, with a low around 41. Southwest wind 2 to 6 mph.
Sunny
Hi 67 °F
Sunny, with a high near 67. Southwest wind 6 to 9 mph.
Mostly Clear
Lo 50 °F
Mostly clear, with a low around 50. Southwest wind around 8 mph.
Sunny
Hi 72 °F
Sunny, with a high near 72. West wind 6 to 9 mph.
Mostly Clear
Lo 46 °F
Mostly clear, with a low around 46. Northwest wind around 5 mph.
Mostly Sunny
Hi 62 °F
Mostly sunny, with a high near 62. Northwest wind around 5 mph.
Partly Cloudy
Lo 46 °F
Partly cloudy, with a low around 46. Southwest wind around 5 mph.
Mostly Sunny
Hi 65 °F
Mostly sunny, with a high near 65. Southwest wind 5 to 8 mph.
Issued by:
National Weather Service Boston / Norton, MA
Updated Mon Oct 26, 2026 1:40am EDT

W 6 mph
W 6 mph
W 5 mph
W 5 mph
W 5 mph
W 5 mph
W 6 mph
W 6 mph
W 6 mph
W 6 mph
W 7 mph
W 7 mph
W 7 mph
W 7 mph
W 7 mph
W 6 mph
NW 6 mph
NW 6 mph
NW 7 mph
NW 7 mph
N 7 mph
N 8 mph
N 9 mph
N 9 mph
N 9 mph
N 9 mph
N 8 mph
N 8 mph
N 8 mph
N 8 mph
N 8 mph
N 8 mph
N 8 mph
N 7 mph
N 6 mph
N 6 mph
000
FXUS61 KBOX 260542
AFDBOX
Area Forecast Discussion
National Weather Service Boston/Norton MA
142 AM EDT Mon Oct 26 2026
.WHAT HAS CHANGED...
No meaningful changes to the forecast, with an extended stretch of
quiet and dry weather ahead.
&&
.KEY MESSAGES...
- Prolonged stretch of dry weather across southern New England,
likely lasting through Halloween, with a potential transition
toward unsettled weather in early November. Mild temperatures
today, followed by a brief cooldown Tuesday and Wednesday
before warmer weather returns late in the week. Temperatures
trend closer to seasonable levels over the weekend.
&&
.DISCUSSION...
KEY MESSAGE 1...Prolonged stretch of dry weather across southern New
England, likely lasting through Halloween, with a potential
transition toward unsettled weather in early November. Mild
temperatures today, followed by a brief cooldown Tuesday and
Wednesday before warmer weather returns late in the week.
Temperatures trend closer to seasonable levels over the weekend.
Nearly picture-perfect fall weather continues for the upcoming week
across southern New England. Once again, the broken record is
playing track one, titled "High Pressure." An extended stretch of
dry weather is expected, with some day-to-day variability in
temperatures, but otherwise not much excitement on the horizon. In
fact, global ensembles paint a rather parched picture for southern
New England, with cumulative probabilities of measurable
precipitation (0.01 inches or greater) generally less than 10
percent through All Hallows' Eve!
An expansive area of surface high pressure, around 1030 mb,
continues to dominate the regional weather pattern, although its
center has shifted slightly farther south toward the Mid-Atlantic
compared to 24 hours ago. Nevertheless, this will promote plenty of
sunshine, light winds, and generally quiet conditions. Two cold
fronts will pass through the region this week, albeit moisture-
starved cold fronts. The first arrives tonight into early Tuesday,
followed by a second Friday night into Saturday morning. However,
persistent high pressure and dry air will likely limit these fronts
to little more than some additional cloud cover, breezy conditions,
and cooler air masses. The next opportunity for precipitation may
arrive Sunday or Monday of next week, as global guidance hints at a
transition toward a more active weather pattern during the first
week of November.
In terms of temperatures, 925 mb temperatures warm to +14C today,
supporting highs in the middle 60s to near 70F this afternoon. In
the wake of the first moisture-starved cold front, Tuesday will be
noticeably cooler, with 925 mb temperatures +1C to +4C. This should
support afternoon temperatures roughly 10 to 15 degrees cooler than
today, with highs in the lower to middle 50s.
Starting Wednesday, warm air advection aloft leads to a steady
increase in temperatures through the remainder of the week, with
Wednesday afternoon a few degrees warmer than Tuesday. Thursday and
Friday look fairly mild considering the time of year, with highs
returning to the middle 60s Thursday and upper 60s to potentially
the lower 70s Friday! DESI probabilities of highs reaching 70F or
greater Friday have increased significantly over the past 24 hours,
from 30 to 50 percent yesterday to generally 60 to 80 percent or
higher today, with lower probabilities along the coast and across
higher terrain. Unfortunately, this warmth will be short-lived, as
the second moisture-starved cold front passes through Friday night
into Saturday morning, knocking temperatures back by around 10
degrees. This should bring highs back into the upper 50s to lower
60s over the weekend.
After a frosty weekend, overnight temperatures should trend closer
to seasonable levels, generally in the upper 30s and 40s through
much of the week. One exception may be Wednesday morning, when a
cooler post-frontal air mass, combined with light winds and mainly
clear skies, could allow for efficient radiational cooling and
temperatures to fall back into the 20s and lower 30s. However, urban
areas such as Boston will likely remain above freezing, with lows in
the middle to upper 30s. Confidence in the colder temperatures
Wednesday morning remains moderate given uncertainty regarding how
effectively winds decouple overnight, which could limit radiational
cooling. Be sure to protect those mums and Halloween pumpkins!
&&
.AVIATION /06Z MONDAY THROUGH FRIDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
06Z TAF Update:
Today through Tuesday...High confidence.
VFR conditions prevail through the period. Clear skies today with W
winds of 6 to 12 kt. Across Cape Cod and the Islands, gusts of 17 to
20 kt are possible beginning this afternoon. A moisture-starved cold
front brings additional cloud cover tonight, with ceilings
potentially lowering to 5-8 kft between 21Z and 09Z. During the
frontal passage, winds shift from W to NNW/N, with speeds increasing
to 8 to 14 kt. Gusts of 20 to 25 kt are possible across coastal
areas, Cape Cod, and the Islands. Winds gradually subside after 18Z
Tuesday, becoming light northerly and potentially calm Tuesday
night. VFR conditions continue.
KBOS Terminal...High confidence.
KBDL Terminal...High confidence.
Outlook /Tuesday Night through Friday/...
Tuesday Night: VFR. Widespread frost.
Wednesday through Wednesday Night: VFR.
Thursday: VFR. Breezy.
Thursday Night: VFR.
Friday: VFR. Breezy.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Through Tuesday...High confidence.
A broad area of high pressure situated south of New England across
the Mid-Atlantic region brings dry weather and generally favorable
marine conditions today. W winds of 10 to 15 kt are expected before
a moisture-starved cold front brings a wind shift to the N
overnight. Cold air advection over the waters will allow gusts to
increase to 25 kt or greater across the eastern and southeastern
waters late tonight into early Tuesday. Seas also briefly build to 3
to 5 ft across the outer waters tonight into Tuesday. As a result,
Small Craft Advisories remain in effect tonight into Tuesday for the
aforementioned waters.
Outlook /Tuesday Night through Friday/...
Tuesday Night: Winds less than 25 kt. Areas of seas approaching
5 ft.
Wednesday through Thursday: Winds less than 25 kt.
Thursday Night through Friday: Winds less than 25 kt. Seas
locally approaching 5 ft.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory from 2 AM to 11 AM EDT Tuesday for ANZ231-
232-250-251-254-255.
&&
$$
Dooley
Radar images courtesy Weather Underground / Intellicast.
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.
No snow expected in Lexington.
First Light:
6:11am
Sunrise:
6:39am
Sunset:
5:19pm
Twilight ends:
5:47pm
Daylight length:
10 hours 39 minutes
Phase:
Full Moon (82%)
Moon set:
8:18am
Moon rise:
9:38pm