Lexington, Massachusetts, USA
44.2°F
6.8°C
Chilly
Clear
This Afternoon: Hi 44 °F
Tonight: Lo 29 °F
Dew Point:
22.6°F
Humidity:
42%
Barometer:
mb
Rain Rate: 0.00 in/hr
Rain Today: 0.00 in
Rain Tuesday: 0.07 in
Visibility: 10 miles
Wind:
Now: Calm
Avg: Calm
Gusts: 1 mph
Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Wed Apr 8, 2026 12:02pm EDT
Sunny
Hi 44 °F
Sunny, with a high near 44. East wind around 8 mph.
Clear
Lo 29 °F
Clear, with a low around 29. South wind 1 to 8 mph.
Sunny
Hi 58 °F
Sunny, with a high near 58. South wind 2 to 15 mph.
Mostly Clear
Lo 36 °F
Mostly clear, with a low around 36. South wind 5 to 14 mph.
Mostly Sunny
Hi 67 °F
Mostly sunny, with a high near 67. Southwest wind 5 to 8 mph.
Chance Rain Showers
Lo 47 °F
A chance of rain showers after 10pm. Mostly cloudy, with a low around 47. Southwest wind around 8 mph. Chance of precipitation is 30%.
Slight Chance Rain Showers then Sunny
Hi 59 °F
A slight chance of rain showers before 7am. Sunny, with a high near 59. Northwest wind around 9 mph.
Clear
Lo 36 °F
Clear, with a low around 36. Northwest wind 3 to 8 mph.
Sunny
Hi 60 °F
Sunny, with a high near 60. Southwest wind 3 to 7 mph.
Mostly Cloudy then Slight Chance Rain Showers
Lo 46 °F
A slight chance of rain showers after 5am. Mostly cloudy, with a low around 46. South wind around 8 mph.
Mostly Cloudy
Hi 71 °F
Mostly cloudy, with a high near 71. Southwest wind 8 to 13 mph, with gusts as high as 24 mph.
Slight Chance Rain Showers
Lo 60 °F
A slight chance of rain showers between 11pm and 1am. Mostly cloudy, with a low around 60. Southwest wind around 12 mph, with gusts as high as 22 mph.
Partly Sunny
Hi 80 °F
Partly sunny, with a high near 80. Southwest wind around 12 mph, with gusts as high as 22 mph.
Chance Rain Showers
Lo 57 °F
A chance of rain showers after 7pm. Mostly cloudy, with a low around 57. Southwest wind around 10 mph, with gusts as high as 21 mph.
Issued by:
National Weather Service Boston / Norton, MA
Updated Wed Apr 8, 2026 12:02pm EDT

SE 7 mph
SE 7 mph
SE 8 mph
SE 8 mph
SE 8 mph
SE 7 mph
SE 7 mph
SE 6 mph
S 6 mph
S 5 mph
S 3 mph
S 2 mph
S 1 mph
S 1 mph
S 1 mph
S 1 mph
S 2 mph
S 2 mph
S 3 mph
S 6 mph
S 7 mph
S 9 mph
S 10 mph
S 13 mph
S 14 mph
S 14 mph
S 15 mph
S 15 mph
S 14 mph
S 12 mph
S 10 mph
S 9 mph
S 8 mph
S 6 mph
S 6 mph
SW 5 mph
000
FXUS61 KBOX 081803
AFDBOX
Area Forecast Discussion
National Weather Service Boston/Norton MA
203 PM EDT Wed Apr 8 2026
.WHAT HAS CHANGED...
Updated Aviation section, otherwise no significant changes.
&&
.KEY MESSAGES...
- Sunny & cool today with highs in the upper 40s to the lower 50s
except near 40 along parts of the immediate eastern MA coast. Cold
tonight with clear skies/light winds & lows mainly in the 20s.
- Dry with moderating temps Thu/Fri. Highs in the 50s/near 60 Thu &
well into the 60s on Fri.
- Pleasant April weather this weekend with highs mainly in the upper
50s to the lower 60s. Generally dry this weekend outside a few brief
showers possible Fri night/early Sat morning.
- Temperatures uncertain on Mon depending on speed of a warm
front, but by Tue it will be unseasonably warm with many
locations potentially reaching 80+. Dry weather dominates Mon
and Tue outside a few brief showers possible.
&&
.DISCUSSION...
KEY MESSAGE 1...Sunny & cool today with highs in the upper 40s to
the lower 50s except near 40 along parts of the immediate eastern MA
coast. Cold tonight with clear skies/light winds & lows mainly in
the 20s.
A large 1035+ mb high pressure system will be centered across the
region today. This will result in sunny skies...light winds and cool
temperatures. The strong April sunshine will allow highs to reach
the upper 40s to the lower 50s. However...a weak pressure gradient
will allow sea breezes to develop along portions of the immediate
coast by afternoon. This will result in afternoon temperatures mainly
in the upper 30s and lower 40s along the eastern MA coast.
High pressure will remain in control of our weather tonight as it
slowly moves east of the region. Light/calm winds, clear skies and a
dry airmass for April standards will allow for ideal radiational
cooling tonight. Temps will drop quickly after sunset...Low temps by
daybreak Thu will be mainly in the 20s but some upper teens are
possible in the normally coldest outlying locations. The urban heat
island of Boston will be the mild spot with overnight lows in the
lower 30s.
KEY MESSAGE 2...Dry with moderating temps Thu/Fri. Highs in the
50s to near 60 Thu & well into the 60s Fri.
The upper trough over the Northeast shifts east of the region Thu
into Fri. The ensembles are in very good agreement in westerly
flow aloft and above normal height fields. The result will
be moderating temps Thu and Fri with continued dry weather. Highs on
Thu will be mainly in the 50s to perhaps near 60 in a few spots. By
Fri highs will be well into the 60s across much of the region.
KEY MESSAGE 3...Pleasant April weather this weekend with highs
mainly in the upper 50s to the lower 60s. Generally dry this
weekend outside a few brief showers possible Fri night/early
Sat morning.
A weak cold front crosses the region Fri night into early Sat
morning. Forcing and deep layer moisture is rather limited...but a
few brief showers will be possible. Otherwise...a 1035 mb high
pressure system will build in from the west for the weekend.
This will result in very pleasant April weather for the rest of the
weekend. Highs will mainly be in the upper 50s to the lower 60s with
cooler conditions at times along parts of the immediate coast with
sea breezes.
KEY MESSAGE 4...Temperatures uncertain on Mon depending on the timing
of a warm front, but by Tue it will be unseasonably warm with many
locations potentially reaching 80+. Dry weather dominates Mon and Tue
outside a few brief showers possible.
High pressure shifts east of the region early next week. The long range
ensembles indicate upper level ridging over the Gulf nosing northward
into New England with well above normal height fields. High temps on
Mon are uncertain depending on the timing of a warm frontal passage.
The GFS is quickest with highs well into the 70s...while the
CMC/ECMWF are slower indicating highs in the 50s to the lower 60s.
However...by Tue the guidance is in very good agreement in the
potential for many locations to see high temps of 80+ with
southwest flow. Still a lot can change in this time range...but
certainly the potential for summerlike warmth by next Tue afternoon.
A few showers will be possible with the warm front on Mon and
perhaps by later Tue/Tue night with shortwave energy approaching
from the west. But overall...much of this time may feature dry
weather.
&&
.AVIATION /18Z WEDNESDAY THROUGH MONDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
18z TAF Update:
Rest of the Afternoon through Thursday: High confidence.
VFR through this period. Winds this afternoon N/NE around 5-10
kt, a bit stronger 10-15 kt Cape and Islands, with seabreezes
along the eastern MA coast. Winds tonight trend light SE, calm
at times. Winds for Thursday trend SE to S around 5-10 kt, on
the higher end of that range with occasional gusts to 20-22 kt
for interior Southern New England airports.
Thursday Night: High confidence overall, though moderate along
the south coast, Cape and Islands.
Mainly VFR; though with returning shallow moisture off the
water, the potential exists for patchy MVFR-IFR visby fog after
01z Friday for PVD and the Cape airports. It is possible it may
end up being still too dry for much development. South/southwest
winds 5-10 kt inland, though light southerly/southeasterly over
the south coast.
KBOS Terminal...High confidence in TAF.
KBDL Terminal...High confidence in TAF.
Outlook /Thursday Night through Monday/...
Thursday Night through Friday: VFR. Breezy.
Friday Night: VFR. Breezy. Chance SHRA.
Saturday: VFR. Breezy.
Saturday Night through Sunday: VFR.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Through Thursday Night: High confidence.
Winds and significant wave heights remain below small craft
advisory thresholds through Thursday night. NE/E winds 15-20 kt
today ease tonight and become SE around 10 kt or less (and could
turn calm for a while overnight). SE to S winds increase again
Thurs to around 10-15 kt, though some gusts could approach SCA
criterion over the waters east of Gloucester. Wave heights under
4 ft all waters. Possible risk for marine fog Thursday night,
especially in the southern waters and adjacent to Cape Cod.
Outlook /Thursday Night through Monday/...
Thursday Night: Winds less than 25 kt.
Friday: Winds less than 25 kt. Areas of seas approaching 5 ft.
Friday Night: Winds less than 25 kt. Seas up to 5 ft. Chance of
rain showers.
Saturday through Saturday Night: Winds less than 25 kt. Seas up
to 5 ft.
Sunday: Winds less than 25 kt. Seas locally approaching 5 ft.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...None.
&&
$$
DISCUSSION...Frank
AVIATION...Belk/Loconto
MARINE...Belk/Loconto
Radar images courtesy Weather Underground / Intellicast.
UV Index forecast high for today: 5 Medium
Current (Estimated): 5 Medium
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:
0.07 in
Tuesday:
0.65 in
April:
6.27 in
2026
51.1 in
Season Snow:
1 snow day in April
1:54pm
46.4°F
High today:
7:03am
27.5°F
Low today:
2:15pm
46.6°F
High Tuesday:
2:17am
32.5°F
Low Tuesday:
4:15am
24.6°F
Low wind chill today:
11:56pm
25.5°F
Low wind chill Tuesday:
1:53pm
27.1°F
High dew pt today:
1:32pm
41.2°F
High dew pt Tuesday:
12:15am
8 mph
Wind gust today:
11:27pm
11 mph
Wind gust Tuesday:
No alerts/warnings active for Southeast Middlesex County.
No snow expected in Lexington.
First Light:
5:46am
Sunrise:
6:15am
Sunset:
7:19pm
Twilight ends:
7:47pm
Daylight length:
13 hours 4 minutes
Phase:
Waning Gibbous (64%)
Moon rise:
1:22am
Moon set:
9:42am