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
Tonight: Lo 27 °F
Thursday: Hi 40 °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 Tuesday: 0.00 in
Visibility: 10 miles
Wind:
Now: Calm
Avg: Calm
Gusts: 0 mph
Expected Snow [‒] Expected Snow [+]
72-Hour Snowfall Forecast
Trace of snow expected in Lexington.
Forecast [‒] Forecast [+]
NWS Weather Forecast -
Tonight,
Thursday,
&
Thursday Night
through
Wednesday
Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Wed Feb 25, 2026 2:25pm EST
Tonight:
Scattered Snow Showers
Lo 27 °F
Scattered snow showers between 8pm and 3am. Mostly cloudy, with a low around 27. Southwest wind around 9 mph. Chance of precipitation is 50%.
Thursday:
Mostly Sunny
Hi 40 °F
Mostly sunny, with a high near 40. West wind 7 to 14 mph.
Thursday Night:
Mostly Clear
Lo 17 °F
Mostly clear, with a low around 17. West wind 2 to 6 mph.
Friday:
Sunny
Hi 38 °F
Sunny, with a high near 38. Southwest wind 2 to 6 mph.
Friday Night:
Mostly Clear
Lo 26 °F
Mostly clear, with a low around 26. South wind around 6 mph.
Saturday:
Mostly Sunny
Hi 46 °F
Mostly sunny, with a high near 46. Southwest wind around 8 mph.
Saturday Night:
Mostly Cloudy
Lo 27 °F
Mostly cloudy, with a low around 27. West wind around 6 mph.
Sunday:
Chance Light Snow
Hi 35 °F
A chance of snow before 5pm. Mostly cloudy, with a high near 35. Northwest wind 6 to 9 mph. Chance of precipitation is 30%.
Sunday Night:
Partly Cloudy
Lo 12 °F
Partly cloudy, with a low around 12. Northwest wind around 7 mph.
Monday:
Slight Chance Light Snow
Hi 24 °F
A slight chance of snow after 11am. Mostly sunny, with a high near 24. North wind around 6 mph.
Monday Night:
Chance Light Snow
Lo 9 °F
A chance of snow. Partly cloudy, with a low around 9. North wind around 6 mph. Chance of precipitation is 30%.
Tuesday:
Chance Light Snow
Hi 32 °F
A chance of snow. Mostly cloudy, with a high near 32. West wind around 8 mph. Chance of precipitation is 30%.
Tuesday Night:
Chance Light Snow
Lo 23 °F
A chance of snow. Mostly cloudy, with a low around 23. South wind around 7 mph. Chance of precipitation is 50%.
Wednesday:
Chance Light Snow then Chance Light Rain
Hi 43 °F
A chance of snow before 9am, then a chance of rain. Partly sunny, with a high near 43. West wind around 9 mph.
NWS Hourly Forecast -
Tonight 8pm through Fri 7am
Issued by:
National Weather Service Boston / Norton, MA
Updated Wed Feb 25, 2026 2:25pm EST
8:00pm
Dew Pt 27°F
Wind Chill: 27°F
SW 9 mphPrecip: 22%
9:00pm
Dew Pt 27°F
Wind Chill: 27°F
SW 9 mphPrecip: 34%
10:00pm
Dew Pt 27°F
Wind Chill: 27°F
SW 9 mphPrecip: 45%
11:00pm
Dew Pt 27°F
Wind Chill: 27°F
SW 8 mphPrecip: 42%
12:00am
Dew Pt 27°F
Wind Chill: 27°F
SW 8 mphPrecip: 40%
1:00am
Dew Pt 28°F
Wind Chill: 27°F
SW 7 mphPrecip: 37%
2:00am
Dew Pt 28°F
Wind Chill: 26°F
SW 8 mphPrecip: 25%
3:00am
Dew Pt 27°F
Wind Chill: 26°F
SW 8 mphPrecip: 12%
4:00am
Dew Pt 26°F
Wind Chill: 26°F
W 8 mphPrecip: 0%
5:00am
Dew Pt 24°F
Wind Chill: 23°F
W 9 mphPrecip: 0%
6:00am
Dew Pt 22°F
Wind Chill: 20°F
W 9 mphPrecip: 0%
7:00am
Dew Pt 20°F
Wind Chill: 19°F
W 9 mphPrecip: 0%
8:00am
Dew Pt 20°F
Wind Chill: 21°F
W 10 mphPrecip: 0%
9:00am
Dew Pt 21°F
Wind Chill: 23°F
W 13 mphPrecip: 1%
10:00am
Dew Pt 19°F
Wind Chill: 26°F
W 14 mphPrecip: 1%
11:00am
Dew Pt 19°F
Wind Chill: 27°F
W 14 mphPrecip: 2%
12:00pm
Dew Pt 20°F
Wind Chill: 29°F
W 13 mphPrecip: 2%
1:00pm
Dew Pt 20°F
Wind Chill: 30°F
W 13 mphPrecip: 3%
2:00pm
Dew Pt 20°F
Wind Chill: 32°F
W 12 mphPrecip: 5%
3:00pm
Dew Pt 20°F
Wind Chill: 32°F
W 10 mphPrecip: 7%
4:00pm
Dew Pt 21°F
Wind Chill: 33°F
W 8 mphPrecip: 9%
5:00pm
Dew Pt 20°F
Wind Chill: 32°F
W 7 mphPrecip: 8%
6:00pm
Dew Pt 19°F
Wind Chill: 28°F
W 6 mphPrecip: 7%
7:00pm
Dew Pt 18°F
Wind Chill: 26°F
W 5 mphPrecip: 6%
8:00pm
Dew Pt 18°F
Wind Chill: 24°F
W 5 mphPrecip: 6%
9:00pm
Dew Pt 17°F
Wind Chill: 24°F
W 5 mphPrecip: 6%
10:00pm
Dew Pt 16°F
Wind Chill: 23°F
W 5 mphPrecip: 6%
11:00pm
Dew Pt 15°F
Wind Chill: 22°F
W 5 mphPrecip: 5%
12:00am
Dew Pt 14°F
Wind Chill: 19°F
NW 5 mphPrecip: 4%
1:00am
Dew Pt 13°F
Wind Chill: 17°F
NW 5 mphPrecip: 4%
2:00am
Dew Pt 13°F
Wind Chill: 17°F
NW 3 mphPrecip: 3%
3:00am
Dew Pt 13°F
Wind Chill: 16°F
NW 3 mphPrecip: 2%
4:00am
Dew Pt 12°F
NW 2 mphPrecip: 1%
5:00am
Dew Pt 12°F
NW 2 mphPrecip: 1%
6:00am
Dew Pt 12°F
NW 2 mphPrecip: 1%
7:00am
Dew Pt 12°F
NW 2 mphPrecip: 1%
FORECAST DISCUSSION
Area Forecast Discussion
for Boston / Norton, MA
000
FXUS61 KBOX 252329
AFDBOX
Area Forecast Discussion
National Weather Service Boston/Norton MA
629 PM EST Wed Feb 25 2026
.WHAT HAS CHANGED...
The probability for a brief round of rain/snow showers has
been increased after 8-9 pm until 2-3 am. Guidance trending a
possible storm for the start of next week away from the region,
but unsettled weather still cannot be entirely ruled out as
significant spread across the guidance remains.
&&
.KEY MESSAGES...
- Brief round of scattered rain/snow showers after 8-9 pm until
about 2-3 am with even a few snow squalls possible across the
interior. The next system passes well to our south late
Thu/Thu night with no impacts.
- Cold front passing through Sunday that may bring some snow showers.
Colder temperatures with a potential Arctic outbreak for the
start of the week.
- Unsettled weather still a possibility for the start of next
week, but confidence remains low.
&&
.DISCUSSION...
Key Message 1...Brief round of scattered rain/snow showers
after 8-9 pm until about 2-3 am with even a few snow squalls
possible across the interior. The next system passes well to our
south late Thu/Thu night with no impacts.
A shortwave/cold front will cross the region tonight. Vigorous
shortwave energy coupled with some moisture/instability in the 0-2
KM layer will result in scattered snow showers and perhaps a few
brief snow squalls too across the interior. This activity will enter
western MA after 8-9 pm and it is not out of the question a few
spots receive a quick one half to 1" of new snow with the greatest
risk in the high terrain. Some of this activity may survive onto the
I-95 corridor in the 11 pm to 2 am time window. Warmer boundary
layer may result in Ptype mixed with or even in the form of rain
showers. Regardless...not really expecting any additional roadway
impacts near the coast given above freezing temps when the activity
moves across the region.
Otherwise...these scattered rain/snow showers departs after 2-3 am
with lows in the 20s to near 30 by daybreak. Plenty of sunshine Thu
with highs in the upper 30s to the lower 40s. Low pressure will pass
well to our south late Thu/Thu night with mainly just some mid level
clouds and we are favoring it remaining dry. The GFS remains a
northern outlier...but a worst case scenario would be a coating to
1" on the immediate south coast/Cape and Islands and that is just a
low probability at this point.
Key Message 2...Cold front passing through Sunday that may
bring some snow showers. Colder temperatures with a potential
Arctic outbreak for the start of the week.
Guidance is indicating a possible Arctic outbreak over southern New
England to start the week after a more seasonable first half of the
weekend. A cold front pushes through Sunday, and the chance for some
light snow showers moves in with it. Some low to mid-level moisture
along with CAA and the lift from the front will be helpful for these
showers developing. Behind the front, strong CAA continues as Arctic
air settles over the region. 925 mb temperatures fall from around 0C
to -15C and even down to -20C by Monday morning. Highs Monday will
likely not climb higher than the 20s and lows Sunday and Monday
night will likely fall back into the low teens and single digits.
Key Message 3...Unsettled weather still a possibility for the
start of next week, but confidence remains low.
Considerable spread regarding the chance for another storm system
Monday into Tuesday still exists across the different ensembles and
deterministic models. With regards to precip, confidence is very low
as the track for this system is still very uncertain. Some ensemble
suites have the high pressure moving in over Quebec shifting more
south over New York state into northern New England by Monday
morning. If this occurred, precipitation would be suppressed. Latest
guidance has not much of a signal for a wave impacting the region
for Monday as a result. GEFS still has a signal for a system Monday,
but even it has trended south. Will be something to continue
monitoring, especially this far out. Unsettled weather may still
make a return past Monday, but again, there is significant spread
across all guidance suites at this time, so confidence is quite low
in this part of the forecast.
&&
.AVIATION /00Z THURSDAY THROUGH MONDAY/...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
00z TAF Update...
Tonight through Thursday night...High confidence in trends with
moderate confidence in timing.
Conditions improving to VFR tonight with the exception of
during any brief precipitation in the 02z to 08z window with a
cold frontal passage. A line of snow showers with a few heavier
snow squalls possible will drop into northwest MA after 01z-02z.
This activity may reach the I-95 corridor in the 04z to 07z
window perhaps mixed with or in the form of rain showers. This
activity may result in briefly lower cigs/vsbys. Otherwise...VFR
conditions behind this activity right through Thu night.
Generally south-southwest winds 5-10 knots, but expecting a
period of LLWS ahead of an approaching cold front.
Otherwise...west winds 7 to 13 knots on Thu. Winds then become
light NW Thu night and should decouple in the typical spots.
KBOS Terminal...High confidence in trends but moderate
confidence in timing.
KBDL Terminal...High confidence in trends but moderate
confidence in timing.
Outlook /Friday through Monday/...
Friday through Friday Night: VFR.
Saturday: VFR. Breezy.
Saturday Night: VFR.
Sunday: Mainly VFR, with local MVFR possible. Breezy. Chance
SN.
Sunday Night: VFR. Breezy.
Monday: VFR. Slight chance SN.
&&
.MARINE...
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Tonight through Thursday night...High confidence.
SW wind gusts of 20-30 knots across the waters diminish early this
evening. Otherwise...we may have a surge of westerly wind gusts of
25 knots across our northern waters overnight into Thu morning.
Nonetheless...lingering swell across our southern waters will
only slowly diminish so small craft headlines will need to
continue well into Thu.
Outlook /Friday through Monday/...
Friday: Winds less than 25 kt. Areas of seas approaching 5 ft.
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. Slight chance of snow.
Sunday Night: Low risk for Small Craft Advisory winds with
gusts up to 25 kt. Areas of seas approaching 5 ft. Chance of
freezing spray.
Monday: Winds less than 25 kt. Areas of seas approaching 5 ft.
Chance of freezing spray, slight chance of snow.
&&
.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 7 PM EST this evening for
ANZ231>234-251.
Small Craft Advisory until 7 PM EST Thursday for ANZ235-237.
Small Craft Advisory until 11 AM EST Thursday for ANZ250.
Small Craft Advisory until 1 AM EST Friday for ANZ254>256.
&&
$$
DISCUSSION...Frank/Hrencecin
AVIATION...McMinn
MARINE...Frank/Hrencecin
Radar [‒] Radar [+]
Radar images courtesy Weather Underground / Intellicast.
Satellite [‒] Satellite [+]
Satellite images courtesy Weather Underground / Intellicast.
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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
Tuesday:
0.01 in
February:
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 Tuesday:
7:11am
16.2°F
Low Tuesday:
12:00am
25.2°F
Low wind chill today:
7:11am
16.2°F
Low wind chill Tuesday:
1:17pm
33.3°F
High dew pt today:
11:56pm
20.7°F
High dew pt Tuesday:
None
Wind gust today:
None
Wind gust Tuesday:
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:
Waxing Gibbous (82%)
Moon set:
8:18am
Moon rise:
9:38pm