Lexington, Massachusetts, USA
35.1°F
1.7°C
Cold
Partly cloudy
This Afternoon: Hi 80 °F
Tonight: Lo 58 °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 Monday: 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 Tue Jun 16, 2026 10:38am EDT
- More seasonable temperatures, dry weather and comfortable humidities through tonight. Scattered pop-up showers across far western New England later Wednesday afternoon.
- High astronomical tides with less than a foot of storm surge could cause minor coastal flooding for the late evening high tides tonight.
- Gusty southerly winds with some showers and perhaps a few thunderstorms Thursday. Watching the severe weather potential too, but right now thinking main threat will be to our southwest.
- Beautiful stretch of weather Friday through Monday with warm afternoons and comfortable humidity.
Sunny
Hi 80 °F
Sunny, with a high near 80. Northwest wind around 7 mph.
Mostly Clear
Lo 58 °F
Mostly clear, with a low around 58. Southwest wind around 5 mph.
Mostly Sunny
Hi 81 °F
Mostly sunny, with a high near 81. South wind 2 to 9 mph.
Partly Cloudy
Lo 59 °F
Partly cloudy, with a low around 59. South wind 3 to 8 mph.
Showers And T-Storms Likely
Hi 81 °F
A chance of rain showers between 7am and 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 81. South wind 3 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 70%.
Showers And T-Storms Likely
Lo 64 °F
Showers and thunderstorms likely before 1am. Partly cloudy, with a low around 64. Southwest wind 7 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Mostly Sunny
Hi 84 °F
Mostly sunny, with a high near 84. West wind 9 to 13 mph, with gusts as high as 24 mph.
Mostly Clear
Lo 62 °F
Mostly clear, with a low around 62. West wind around 12 mph.
Sunny
Hi 81 °F
Sunny, with a high near 81. West wind 10 to 14 mph, with gusts as high as 25 mph.
Mostly Clear
Lo 60 °F
Mostly clear, with a low around 60. West wind 8 to 13 mph, with gusts as high as 23 mph.
Sunny then Slight Chance Rain Showers
Hi 83 °F
A slight chance of rain showers after 4pm. Sunny, with a high near 83. West wind around 10 mph.
Slight Chance Rain Showers then Partly Cloudy
Lo 61 °F
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 61. West wind 3 to 8 mph.
Mostly Sunny then Chance Rain Showers
Hi 81 °F
A chance of rain showers after 1pm. Mostly sunny, with a high near 81. Southwest wind 3 to 7 mph. Chance of precipitation is 40%.
Chance Rain Showers
Lo 62 °F
A chance of rain showers. Mostly cloudy, with a low around 62. Southwest wind around 6 mph.
Issued by:
National Weather Service Boston / Norton, MA
Updated Tue Jun 16, 2026 10:38am EDT

NW 7 mph
NW 7 mph
W 7 mph
W 7 mph
W 6 mph
W 6 mph
W 5 mph
W 5 mph
W 3 mph
SW 3 mph
SW 3 mph
SW 3 mph
SW 3 mph
SW 3 mph
SW 3 mph
SW 3 mph
SW 3 mph
SW 3 mph
SW 2 mph
SW 2 mph
SW 2 mph
S 2 mph
S 3 mph
S 6 mph
S 6 mph
S 7 mph
S 8 mph
S 8 mph
S 9 mph
S 8 mph
S 8 mph
S 7 mph
S 6 mph
S 5 mph
S 5 mph
S 5 mph
000
FXUS61 KBOX 161212
AFDBOX
Area Forecast Discussion
National Weather Service Boston/Norton MA
812 AM EDT Tue Jun 16 2026
.WHAT HAS CHANGED...
No significant changes to the forecast.
&&
.KEY MESSAGES...
- More seasonable temperatures, dry weather and comfortable
humidities through tonight. Scattered pop-up showers across
far western New England later Wednesday afternoon.
- High astronomical tides with less than a foot of storm surge
could cause minor coastal flooding for the late evening high
tides tonight.
- Gusty southerly winds with some showers and perhaps a few
thunderstorms Thursday. Watching the severe weather potential
too, but right now thinking main threat will be to our
southwest.
- Beautiful stretch of weather Friday through Monday with warm
afternoons and comfortable humidity.
&&
.DISCUSSION...
KEY MESSAGE 1...More seasonable temperatures, dry weather and
comfortable humidities through tonight. Scattered pop-up showers
across far western New England later Wednesday afternoon.
Southern New england remains stuck between a nearly stationary
low pressure across Nova Scotia and a weak high pressure across
the central Appalachians. This will maintain a weak northwest to
west flow across our region, except for local sea breezes late
this morning into this evening. Thinking this should be a
slightly later start to the seabreeze than is typical, more like
early afternoon than mid morning.
A more robust south wind is expected for Wednesday. Still
thinking most of the day remains dry, but cannot dismiss the
idea of a few pop-up afternoon showers across western MA. Not
looking like much instability given the relatively lower surface
dewpoints and high temperatures mainly in the 70s. Will need to
monitor this over the next day.
KEY MESSAGE 2...High astronomical tides with less than a foot of
storm surge could cause minor coastal flooding for the late
evening high tides tonight.
Mostly splashover with minor coastal flooding observed with the
late evening high tide. The higher of two diurnal high tides
will remain the late evening one. Expecting overall tide heights
to slow decrease over the course of this week. With the
expectation for more localized minor coastal flooding, opted to
continue the Coastal Flood Statements instead of Coastal Flood
Advisories. That said, have the greatest concern for the typical
spots like Morrissey Blvd. Low lying areas around Nantucket have
also had some issues the past few high tide cycles. It's
possible an Advisory may be needed here for another tide cycle,
but will let later shifts evaluate further.
KEY MESSAGE 3...Gusty southerly winds with some showers and
perhaps a few thunderstorms Thursday. Watching the severe
weather potential too, but right now thinking main threat will
be to our southwest.
Low pressure tracking northeast across Quebec will allow a pre-
frontal trough/cold front to approach our region from the west
on Thursday. Ahead of these features, a modest southwest LLJ
of 45 to 55 knots will develop. This coupled with mixing will
result in gusty southerly winds of 25 to 35 mph developing. High
temperatures probably top out in the upper 70s to the middle
80s for most locales.
We do expect some showers to impact the region very late Wed
night into the first half of Thu morning with a warm front
crossing the region. Then we may see another round of scattered
showers and perhaps a few t-storms Thu afternoon/evening with
the actual cold front/shortwave. We will need to watch the risk
for severe weather too given strong wind fields. But right now
thinking that the main risk for this looks to be to our
southwest where better instability resides.
KEY MESSAGE 4...Beautiful stretch of weather Friday through
Monday with warm afternoons and comfortable humidity.
Two closed upper level lows just south of Hudsons Bay will
result in height fields lower than normal Friday into this
weekend across the Northeast. This will suppress deeper moisture
to our south and result in a beautiful stretch of weather. High
temperatures will generally be between 75 and 85 with
comfortable humidity. Overnight low temperatures will mainly be
in the 50s to the lower 60s.
Generally dry weather is on tap over this time period too. Some
northern stream energy may result in a few brief diurnally driven
spot showers, but for the most part dry weather is expected.
&&
.AVIATION /12Z TUESDAY THROUGH SATURDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Today...High confidence.
VFR. NW winds this morning at 5-10 kts, continuing for the
inland terminals. Winds shift SSW for PVD and Cape/Island
terminals mid-afternoon. Local seabreezes develop this
afternoon along the east coast (BOS). Timing is moderate
confidence, but should more likely develop between 17-20Z. Winds
shift back toward S/SSW 00-03Z.
Tonight...High Confidence.
VFR. Light SW winds less than 10 kts.
Wednesday...High Confidence.
VFR. Mid-level ceilings developing through the day. Winds SSW
5-10 kts for most terminals. S/SSE winds for BOS around 8-12
kts.
KBOS Terminal...Moderate confidence (sea breeze timing).
Sea breeze develops more likely between 17-20Z. Earliest 16Z and
latest 21Z. Low probability that sea breeze remains just
offshore.
KBDL Terminal...High confidence in TAF.
Outlook /Wednesday Night through Saturday/...
Wednesday Night: VFR.
Thursday: Mainly VFR, with local IFR possible. Windy with local
gusts up to 30 kt. Chance SHRA, slight chance TSRA.
Thursday Night: VFR. Breezy. Slight chance SHRA.
Juneteenth through Saturday: VFR. Breezy.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Through Wednesday: High confidence.
Winds and seas to remain below Small Craft Advisory thresholds
through Wednesday. Could see some gusts around 20 kt this
afternoon around the Cape and islands, especially across the
southern coastal waters.
Outlook /Wednesday Night through Saturday/...
Wednesday Night: Winds less than 25 kt. Areas of seas
approaching 5 ft.
Thursday: Moderate risk for Small Craft Advisory winds with
gusts up to 30 kt. Areas of rough seas. Chance of rain showers.
Thursday Night: Moderate risk for Small Craft Advisory winds
with gusts up to 30 kt. Rough seas up to 9 ft. Chance of rain
showers.
Juneteenth through Friday Night: Low risk for Small Craft
Advisory winds with gusts up to 25 kt. Seas up to 5 ft. Slight
chance of rain showers.
Saturday: 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...None.
&&
$$
DISCUSSION...Belk/Frank
AVIATION...Belk/Mensch
MARINE...Belk/Frank
Radar images courtesy Weather Underground / Intellicast.
UV Index forecast high for today: 8 Very 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
Monday:
0.01 in
June:
1.26 in
2026
1:17pm
36.1°F
High today:
12:00am
25.2°F
Low today:
2:28pm
30.4°F
High Monday:
7:11am
16.2°F
Low Monday:
12:00am
25.2°F
Low wind chill today:
7:11am
16.2°F
Low wind chill Monday:
1:17pm
33.3°F
High dew pt today:
11:56pm
20.7°F
High dew pt Monday:
None
Wind gust today:
None
Wind gust Monday:
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