Old Res Weather
Lexington, Massachusetts, USA
- Clear
-
35.1°F / 1.7°C
-
32.4°F
- 90%
- Calm, 10-min avg: Calm, gust: None
-
- 10 miles
- 0.01 in
- $VPuv None
Current Conditions [‒] Current Conditions [+]
35.1°F
1.7°C
Cold
Clear
This Afternoon: Hi 68 °F
Tonight: Lo 59 °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 Wednesday: 0.00 in
Visibility: 10 miles
Wind:
Now: Calm
Avg: Calm
Gusts: 0 mph
Forecast [‒] Forecast [+]
NWS Weather Forecast -
This Afternoon,
Tonight,
&
Friday
through
Wednesday Night
Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Thu Apr 16, 2026 12:54pm EDT
This Afternoon:
Partly Sunny
Hi 68 °F
Partly sunny, with a high near 68. Southwest wind around 6 mph.
Tonight:
Chance Showers And T-Storms
Lo 59 °F
A slight chance of rain showers before 8pm, then a chance of showers and thunderstorms between 8pm and 10pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Southwest wind 1 to 5 mph. Chance of precipitation is 20%.
Friday:
Chance Showers And T-Storms
Hi 75 °F
A chance of rain showers before 11am, then a chance of showers and thunderstorms. Mostly cloudy. High near 75, with temperatures falling to around 65 in the afternoon. Northwest wind 2 to 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Friday Night:
Chance Rain Showers then Mostly Cloudy
Lo 50 °F
A chance of rain showers before 8pm. Mostly cloudy, with a low around 50. Northeast wind 2 to 7 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Saturday:
Mostly Cloudy
Hi 61 °F
Mostly cloudy, with a high near 61. Northeast wind 3 to 7 mph.
Saturday Night:
Cloudy then Slight Chance Rain Showers
Lo 48 °F
A slight chance of rain showers after 3am. Cloudy, with a low around 48. Southeast wind around 6 mph. Chance of precipitation is 20%.
Sunday:
Rain Showers Likely
Hi 58 °F
Rain showers likely. Cloudy, with a high near 58. Southwest wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Sunday Night:
Rain Showers Likely then Slight Chance Snow Showers
Lo 34 °F
Rain showers likely before 5am, then a slight chance of snow showers. Mostly cloudy, with a low around 34. West wind around 9 mph. Chance of precipitation is 70%.
Monday:
Slight Chance Snow Showers
Hi 48 °F
A slight chance of snow showers before 11am, then a slight chance of rain and snow showers. Mostly sunny, with a high near 48. West wind around 10 mph, with gusts as high as 21 mph.
Monday Night:
Slight Chance Rain And Snow Showers then Partly Cloudy
Lo 30 °F
A slight chance of rain and snow showers before 7pm. Partly cloudy, with a low around 30. Northwest wind 6 to 9 mph.
Tuesday:
Sunny
Hi 54 °F
Sunny, with a high near 54. West wind 6 to 9 mph.
Tuesday Night:
Partly Cloudy then Slight Chance Rain Showers
Lo 39 °F
A slight chance of rain showers after 2am. Partly cloudy, with a low around 39. Southwest wind around 8 mph.
Wednesday:
Slight Chance Rain Showers
Hi 63 °F
A slight chance of rain showers. Partly sunny, with a high near 63. Southwest wind around 9 mph.
Wednesday Night:
Slight Chance Rain Showers then Partly Cloudy
Lo 40 °F
A slight chance of rain showers before 8pm. Partly cloudy, with a low around 40. West wind around 7 mph.
NWS Hourly Forecast -
Today 2pm through Sat 1am
Issued by:
National Weather Service Boston / Norton, MA
Updated Thu Apr 16, 2026 12:54pm EDT
2:00pm
Dew Pt 56°F
SW 6 mphPrecip: 8%
3:00pm
Dew Pt 56°F
S 5 mphPrecip: 10%
4:00pm
Dew Pt 56°F
SW 6 mphPrecip: 12%
5:00pm
Dew Pt 56°F
S 5 mphPrecip: 14%
6:00pm
Dew Pt 56°F
SE 5 mphPrecip: 14%
7:00pm
Dew Pt 55°F
SE 5 mphPrecip: 15%
8:00pm
Dew Pt 54°F
SE 5 mphPrecip: 16%
9:00pm
Dew Pt 54°F
S 5 mphPrecip: 17%
10:00pm
Dew Pt 54°F
S 5 mphPrecip: 17%
11:00pm
Dew Pt 55°F
SW 3 mphPrecip: 17%
12:00am
Dew Pt 54°F
W 2 mphPrecip: 17%
1:00am
Dew Pt 52°F
SW 2 mphPrecip: 17%
2:00am
Dew Pt 53°F
SW 2 mphPrecip: 17%
3:00am
Dew Pt 52°F
W 2 mphPrecip: 16%
4:00am
Dew Pt 52°F
W 1 mphPrecip: 15%
5:00am
Dew Pt 52°F
SW 2 mphPrecip: 14%
6:00am
Dew Pt 52°F
W 2 mphPrecip: 17%
7:00am
Dew Pt 53°F
W 3 mphPrecip: 19%
8:00am
Dew Pt 57°F
W 3 mphPrecip: 22%
9:00am
Dew Pt 60°F
NW 3 mphPrecip: 24%
10:00am
Dew Pt 60°F
NW 5 mphPrecip: 26%
11:00am
Dew Pt 59°F
NW 6 mphPrecip: 27%
12:00pm
Dew Pt 59°F
NW 6 mphPrecip: 29%
1:00pm
Dew Pt 59°F
N 7 mphPrecip: 31%
2:00pm
Dew Pt 59°F
N 7 mphPrecip: 33%
Rain: 0.01 in
3:00pm
Dew Pt 58°F
N 7 mphPrecip: 31%
Rain: 0.01 in
4:00pm
Dew Pt 56°F
NE 7 mphPrecip: 30%
Rain: 0.01 in
5:00pm
Dew Pt 54°F
NE 7 mphPrecip: 28%
Rain: 0.01 in
6:00pm
Dew Pt 53°F
NE 7 mphPrecip: 22%
Rain: 0.01 in
7:00pm
Dew Pt 52°F
NE 6 mphPrecip: 17%
Rain: 0.01 in
8:00pm
Dew Pt 51°F
NE 5 mphPrecip: 11%
Rain: 0.01 in
9:00pm
Dew Pt 50°F
NE 5 mphPrecip: 11%
Rain: 0.01 in
10:00pm
Dew Pt 50°F
NE 3 mphPrecip: 10%
Rain: 0.01 in
11:00pm
Dew Pt 50°F
NE 3 mphPrecip: 10%
Rain: 0.01 in
12:00am
Dew Pt 50°F
NE 3 mphPrecip: 8%
Rain: 0.01 in
1:00am
Dew Pt 50°F
NE 2 mphPrecip: 7%
Rain: 0.01 in
FORECAST DISCUSSION
Area Forecast Discussion
for Boston / Norton, MA
000
FXUS61 KBOX 161822
AFDBOX
Area Forecast Discussion
National Weather Service Boston/Norton MA
222 PM EDT Thu Apr 16 2026
.WHAT HAS CHANGED...
No significant changes.
&&
.KEY MESSAGES...
- Backdoor front returns once again, making it cooler near the
coast with continued warmth inland through Friday. Next chance
for showers and thunderstorms tonight.
- Strong cold front moves through on Sunday bringing showers,
perhaps ending as brief snow showers but of no impact.
Blustery and anomalously cool temperatures for early to mid
next week.
&&
.DISCUSSION...
KEY MESSAGE 1...Backdoor front returns once again, making it
cooler near the coast with continued warmth inland through
Friday. Next chance for showers and thunderstorms tonight.
Unseasonably warm temperatures aloft persist through the latter
half of this week, and a stronger shortwave approaches later
tonight. The backdoor front that has been lingering around the
region will dip back down again today, cooling the coast and
ushering in more onshore flow. This front may make it as far
inland as Worcester today, with temperatures further inland
remaining much warmer. Highs in the low to mid 80s are possible
once more out in the CT Valley, parts of RI, and western MA.
Closer to the coast, highs will likely top out in the 50s,
increasing up to the low 70s as you move inland. This backdoor
front should exit the region as its associated low moves
offshore through the day Friday, and flow shifts more W
initially as a separate front pushes through the region, then
shifts more onshore for the afternoon/evening.
With regards to the approaching shortwave, rain showers with
embedded thunderstorms are possible once again tonight after
sunset. The latest forecast soundings have not changed much,
still indicating 0-6 km bulk shear at and above 40 knots, and
mid-level lapse rates around 6 C/km. The greatest instability
remains over western MA and CT with MLCAPE values around
1000-1500 J/kg with a window of surface-based CAPE in the late
afternoon/early evening possibly overcoming CIN. Generally,
though, most instability will be more elevated. So, the severe
risk remains low, especially with LCL heights remaining above
1000 km. This area is still under a Marginal (level 1 out of 5)
risk for severe weather today, so remain weather aware this
evening.
KEY MESSAGE 2... Strong cold front moves through on Sunday
bringing showers, perhaps ending as brief snow showers but of no
impact. Blustery and anomalously cool temperatures for early to
mid next week.
A strong cold front will be working its way through the
Northeast on Sunday, acting on a narrow but moist (PWATs around
1.2-1.4") warm sector. Showers, perhaps with a rumble or two of
thunder, are likely with the front, which moves through during
the daytime hours. The main story is what lies behind it:
an anomalously cool airmass with 925 mb temps dropping to near
0C and 850 mb temps 0 to -5C by Sun night. Global models show
the potential for backside snow showers as the front moves
offshore; the airmass is just that cold where it is possible,
but it remains to be seen if there is enough lingering precip as
the colder air surges in behind the front to allow for
snowflakes to mix in. No impacts with those snow showers were
they to develop though.
While dry, Monday looks blustery and anomalously cool for mid-
April, with 925 mb temps around 0 to -2C, with northwest winds
around 10-15 mph and gusts 25-30 mph. High temps in/around the
high terrain in the low to mid 40s, with mid to upper 40s for
eastern MA and RI. Winds decrease later in the day with clear
skies, light winds setting stage for a pretty chilly night with
subfreezing lows in most areas away from the cities. Anomalously
cold air then begins to briefly recover starting Tuesday,
though some indication for another weak disturbance in NW flow
to reinforce another shot of cool air around midweek.
&&
.AVIATION /18Z THURSDAY THROUGH TUESDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Through 00z Friday: High confidence overall, though is low to
moderate for Boston.
Mainly VFR. Stratus and mist still lurks offshore and is hugging the
eastern MA coastline and could at times work its way back into BOS
but it may not be that persistent, if it even does so at all thru
00z. Pop-up showers could develop near BDL and north of ORH as soon
as 22z but would be more likely after 00z. SSW winds around 5-10 kt,
with ENE/E winds for ORH, BED and BOS, with SE winds around 5 kt.
Tonight: Moderate confidence.
Mainly VFR; uncertain if BOS and BED see IFR/MVFR stratus layer
return but would be more likely tonight as the boundary layer cools
off. Couple periods of SHRA/possible TS: one 00z-03z mainly N/W of
ORH, with a somewhat better chance after 06z Fri. Carried PROB30s
for the time being since the coverage could be spotty. SW winds (E
winds near the eastern coast) around 5-10 kt become light in all
areas thru midnight then should come around to light northerly by
daybreak.
Friday: Moderate confidence.
Mainly MVFR, possibly IFR from low ceilings, with periods of
hit-or-mostly-miss showers. North to northeast winds 5-10 kt.
KBOS Terminal...Moderate confidence in TAF. VFR generally
governs thru 00z, but stratus and mist lurk offshore and could
at times bring periods of IFR. Better chance at IFR stratus
coming in tonight. Mainly dry but risk for rain showers after
06z Fri. NE/E winds 5-10 kt flip to light southwest briefly
overnight, then return to light northerly for Friday.
KBDL Terminal...High confidence in TAF.
Outlook /Friday Night through Tuesday/...
Friday Night through Saturday: Mainly VFR, with local MVFR
possible.
Saturday Night: Mainly VFR, with areas IFR possible. Breezy.
Slight chance SHRA.
Sunday: Mainly VFR, with local IFR possible. Breezy. SHRA
likely.
Sunday Night: Mainly VFR, with local IFR possible. Breezy.
Chance SHRA, slight chance SHSN.
Monday: VFR. Breezy. Slight chance SHRA, slight chance SHSN.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
High confidence through the weekend.
Backdoor front meandering over southern New England through Fri
morning will maintain light winds and calm seas, though there
will be wind shifts from SW to NE from time to time on eastern
MA waters along with showers and embedded thunderstorms. Brief
periods of marginal Small Craft Advisory seas possible late
tonight/early Fri AM over the southern outer waters, though not
expected to be widespread.
Passage of stronger cold Front Sun should bring SCA conditions
to at least outer waters Sun into Mon.
Outlook /Friday Night through Tuesday/...
Friday Night: Winds less than 25 kt. Seas locally approaching
5 ft.
Saturday through Saturday Night: Winds less than 25 kt.
Sunday: Winds less than 25 kt. Seas locally approaching 5 ft.
Rain showers likely.
Sunday Night: Low risk for Small Craft Advisory winds with
gusts up to 25 kt. Areas of seas approaching 5 ft. Chance of
rain showers.
Monday: Winds less than 25 kt. Areas of seas approaching 5 ft.
Slight chance of rain showers, slight chance of snow showers.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...None.
&&
$$
DISCUSSION...Loconto/Hrencecin
AVIATION...Loconto/Mensch
MARINE...Loconto/Hrencecin
Radar [‒] Radar [+]
Radar images courtesy Weather Underground / Intellicast.
Satellite [‒] Satellite [+]
Satellite images courtesy Weather Underground / Intellicast.
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UV Forecast [‒] UV Forecast [+]
UV Index forecast from the Environmental Protection Agency
UV Index forecast high for today: 2 Low
Current (Measured): 0.0 None
Precipitation [‒] Precipitation [+]
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
Wednesday:
0.01 in
April:
1.26 in
2026
Daily Extremes [‒] Daily Extremes [+]
1:17pm
36.1°F
High today:
12:00am
25.2°F
Low today:
2:28pm
30.4°F
High Wednesday:
7:11am
16.2°F
Low Wednesday:
12:00am
25.2°F
Low wind chill today:
7:11am
16.2°F
Low wind chill Wednesday:
1:17pm
33.3°F
High dew pt today:
11:56pm
20.7°F
High dew pt Wednesday:
None
Wind gust today:
None
Wind gust Wednesday:
Alerts / Advisories [‒] Alerts / Advisories [+]
No alerts/warnings active for Southeast Middlesex County.
Sun / Moon [‒] Sun / Moon [+]
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