Lexington Weather

Current Conditions [‒] Current Conditions [+]

46.0°F Warmer than last hour.

7.8°C

Feels like 43°F

Chilly

Overcast

Today: Hi 48 °F

Tonight: Lo 43 °F

Dew Point: 42.6°F Decreased 0.2°F since last hour.

Humidity: 88% Decreased 3.0% since last hour.

Air Quality Index: 33

Good

(Fine Particles)

Barometer: 29.92 in Falling 0.02 inHg/hr

1013 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.05 in

Rain Friday: 0.45 in

Visibility: 10 miles

Wind:

Now: 8 mph

Avg: Calm

Gusts: 12 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

NWS Weather Forecast -
Today, Tonight, & Sunday through Friday Night

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Sat Mar 7, 2026 7:57am EST

Today:

Patchy Fog then Cloudy

Hi 48 °F

Patchy fog before noon. Cloudy, with a high near 48. South wind 5 to 10 mph, with gusts as high as 21 mph.

Tonight:

Patchy Fog then Chance Light Rain

Lo 43 °F

Patchy fog and a slight chance of rain between 8pm and 10pm, then a chance of rain and patchy fog. Mostly cloudy. Low around 43, with temperatures rising to around 52 overnight. Southwest wind around 12 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

Sunday:

Chance Light Rain then Patchy Fog

Hi 61 °F

A chance of rain before 8am, then patchy fog and a slight chance of rain between 8am and 2pm. Mostly cloudy, with a high near 61. West wind around 9 mph. Chance of precipitation is 30%.

Sunday Night:

Mostly Clear

Lo 37 °F

Mostly clear, with a low around 37. West wind around 7 mph.

Monday:

Mostly Sunny

Hi 59 °F

Mostly sunny, with a high near 59. Southwest wind 5 to 10 mph.

Monday Night:

Clear

Lo 42 °F

Clear, with a low around 42. Southwest wind 6 to 9 mph.

Tuesday:

Sunny

Hi 66 °F

Sunny, with a high near 66. Southwest wind around 7 mph.

Tuesday Night:

Mostly Clear

Lo 42 °F

Mostly clear, with a low around 42. South wind around 6 mph.

Wednesday:

Chance Light Rain

Hi 56 °F

A chance of rain. Mostly cloudy, with a high near 56. South wind 6 to 9 mph. Chance of precipitation is 50%.

Wednesday Night:

Light Rain Likely

Lo 40 °F

Rain likely. Cloudy, with a low around 40. South wind 9 to 13 mph. Chance of precipitation is 60%.

Thursday:

Light Rain Likely then Chance Rain And Snow

Hi 50 °F

Rain likely before 2pm, then a chance of rain and snow. Mostly cloudy, with a high near 50. Southwest wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.

Thursday Night:

Slight Chance Rain And Snow then Partly Cloudy

Lo 25 °F

A chance of rain before 8pm, then a slight chance of rain and snow between 8pm and 10pm. Partly cloudy, with a low around 25. West wind 8 to 12 mph, with gusts as high as 23 mph. Chance of precipitation is 40%. New snow accumulation of less than half an inch possible.

Friday:

Mostly Sunny

Hi 42 °F

Mostly sunny, with a high near 42. West wind around 10 mph.

Friday Night:

Chance Light Snow

Lo 33 °F

A chance of snow between 8pm and 11pm, then a chance of rain and snow. Mostly cloudy, with a low around 33. South wind around 10 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 4pm through Mon 4am

Issued by:
National Weather Service Boston / Norton, MA
Updated Sat Mar 7, 2026 3:12pm EST

4:00pm

Patchy Drizzle

43°F
Dew Pt 38°F
Wind Chill: 40°F
Wind from S

S 10 mph
Precip: 7%

5:00pm

Patchy Drizzle

43°F
Dew Pt 39°F
Wind Chill: 40°F
Wind from SW

SW 10 mph
Precip: 7%

6:00pm

Patchy Drizzle

43°F
Dew Pt 39°F
Wind Chill: 40°F
Wind from SW

SW 10 mph
Precip: 8%

7:00pm

Patchy Drizzle

45°F
Dew Pt 40°F
Wind Chill: 41°F
Wind from SW

SW 10 mph
Precip: 8%

8:00pm

Patchy Drizzle

43°F
Dew Pt 41°F
Wind Chill: 38°F
Wind from SW

SW 10 mph
Precip: 20%

9:00pm

Patchy Drizzle

45°F
Dew Pt 42°F
Wind Chill: 40°F
Wind from SW

SW 10 mph
Precip: 24%

10:00pm

Patchy Drizzle

45°F
Dew Pt 43°F
Wind Chill: 41°F
Wind from SW

SW 10 mph
Precip: 28%

11:00pm

Patchy Drizzle

46°F
Dew Pt 44°F
Wind Chill: 41°F
Wind from SW

SW 10 mph
Precip: 29%

Sun
12:00am

Patchy Fog

47°F
Dew Pt 44°F
Wind Chill: 43°F
Wind from SW

SW 10 mph
Precip: 31%

Sun
1:00am

Patchy Fog

47°F
Dew Pt 45°F
Wind Chill: 46°F
Wind from SW

SW 10 mph
Precip: 32%

Sun
3:00am

Chance Light Rain

48°F
Dew Pt 45°F
Wind Chill: 46°F
Wind from SW

SW 10 mph
Precip: 36%

Sun
4:00am

Patchy Fog

48°F
Dew Pt 46°F
Wind from SW

SW 10 mph
Precip: 40%

Sun
5:00am

Patchy Fog

48°F
Dew Pt 47°F
Wind from SW

SW 9 mph
Precip: 45%

Sun
6:00am

Chance Light Rain

49°F
Dew Pt 47°F
Wind from SW

SW 9 mph
Precip: 32%

Sun
7:00am

Chance Light Rain

49°F
Dew Pt 47°F
Wind from SW

SW 9 mph
Precip: 18%

Sun
8:00am

Patchy Fog

49°F
Dew Pt 47°F
Wind Chill: 43°F
Wind from SW

SW 8 mph
Precip: 22%

Sun
9:00am

Patchy Fog

49°F
Dew Pt 46°F
Wind Chill: 44°F
Wind from SW

SW 8 mph
Precip: 22%

Sun
10:00am

Patchy Fog

52°F
Dew Pt 47°F
Wind from SW

SW 8 mph
Precip: 22%

Sun
11:00am

Patchy Drizzle

53°F
Dew Pt 48°F
Wind from W

W 8 mph
Precip: 22%

Sun
12:00pm

Cloudy

54°F
Dew Pt 47°F
Wind from W

W 9 mph
Precip: 19%

Sun
1:00pm

Cloudy

55°F
Dew Pt 46°F
Wind from W

W 9 mph
Precip: 17%

Sun
2:00pm

Cloudy

54°F
Dew Pt 44°F
Wind from W

W 9 mph
Precip: 14%

Sun
3:00pm

Mostly Cloudy

54°F
Dew Pt 42°F
Wind from W

W 8 mph
Precip: 12%

Sun
4:00pm

Mostly Cloudy

54°F
Dew Pt 40°F
Wind from W

W 8 mph
Precip: 9%

Sun
5:00pm

Partly Sunny

51°F
Dew Pt 39°F
Wind from W

W 7 mph
Precip: 7%

Sun
6:00pm

Partly Cloudy

49°F
Dew Pt 38°F
Wind from W

W 6 mph
Precip: 6%

Sun
7:00pm

Partly Cloudy

47°F
Dew Pt 38°F
Wind from W

W 6 mph
Precip: 5%

Sun
8:00pm

Mostly Clear

45°F
Dew Pt 37°F
Wind from W

W 6 mph
Precip: 0%

Sun
9:00pm

Mostly Clear

44°F
Dew Pt 36°F
Wind from W

W 6 mph
Precip: 0%

Sun
10:00pm

Mostly Clear

43°F
Dew Pt 36°F
Wind from W

W 6 mph
Precip: 0%

Sun
11:00pm

Clear

42°F
Dew Pt 35°F
Wind Chill: 41°F
Wind from SW

SW 6 mph
Precip: 0%

Mon
12:00am

Clear

42°F
Dew Pt 35°F
Wind Chill: 39°F
Wind from SW

SW 7 mph
Precip: 0%

Mon
1:00am

Clear

41°F
Dew Pt 34°F
Wind Chill: 39°F
Wind from W

W 7 mph
Precip: 0%

Mon
2:00am

Mostly Clear

41°F
Dew Pt 34°F
Wind Chill: 39°F
Wind from W

W 6 mph
Precip: 0%

Mon
3:00am

Mostly Clear

40°F
Dew Pt 34°F
Wind Chill: 38°F
Wind from W

W 6 mph
Precip: 0%

Mon
4:00am

Mostly Clear

39°F
Dew Pt 33°F
Wind Chill: 37°F
Wind from SW

SW 6 mph
Precip: 0%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 071903
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
203 PM EST Sat Mar 7 2026

.WHAT HAS CHANGED...
No significant changes. Becoming more confident in springtime
warmth, especially Tuesday, along with the potential for minor 
river flooding within the next 7 days.

&&

.KEY MESSAGES...

- A brief round of showers, and perhaps a rumble of thunder, 
  late tonight into very early Sunday morning.

- Above normal temperatures next week. Trending more unsettled
  mid to late week with a round or two of precipitation
  possible.

- Expecting significant snowmelt over the coming week. Minor
  river flooding possible.

&&

.DISCUSSION...
KEY MESSAGE 1...A brief round of showers, and perhaps a rumble
of thunder, late tonight into very early Sunday morning.

Southern New England remains on the cool side of a warm front
tonight, until a cold front passes by late Sunday. This gives 
our region a brief period of time within the warm sector of a 
low pressure moving east across northern New England Sunday.

Areas of fog and patchy drizzle finally ended for a time this  
afternoon, but are likely to return later tonight. With dew
points expected to remain above freezing through Sunday, we're
looking at continued snow melt during this time. 

Expecting a round of rainfall ahead of a pair of fronts starting 
late this evening before winding down from west to east during 
the day Sunday. It could be late afternoon before this rainfall 
finally clears the Cape and islands. While it's not impossible 
for there to be a few rumbles of thunder given the observed 
convection farther to our west, thinking the time of day and 
year does not favor thunderstorms across southern New England 
and left them out of this forecast.

KEY MESSAGE 2...Above normal temperatures next week. Trending
more unsettled mid to late week with a round or two of
precipitation possible. Minor river flooding possible.

A thermal ridge is expected to build in further from the south
next week bringing light S/SW winds. In response, 850mb
temperatures rise to 10-15C through the week, supporting above
normal temperatures. Highs will likely rise into the upper 50s 
and 60s Monday through Thursday for many spots. Tuesday will
likely be the warmest day with highs in the 60s with a some
interior/valley areas potentially approaching 70. This runs
round 20-25 degrees above normal. Immediate coastal areas will
run a bit cooler, especially along the immediate south coast 
and the Cape and Islands given the onshore southerly component 
flow. Those mentioned areas will more likely stay in the 40s and
50s. Some guidance continues to hint at the potential for a 
backdoor front later Wednesday which could bring down
temperatures, at least in northeast MA. Highs will depend on 
how far south this front extends. 

The pattern trends more unsettled Wednesday onward with the
passage of a few shortwave troughs bringing a few rounds of
precipitation through late week. There is still uncertainty in
the timing/coverage of showers on Wednesday. Thursday's wave 
will be more organized with a stronger cold front accompanying 
it. This will support more widespread precipitation later 
Thursday, likely rain to start, with potential snow mixing in 
for the higher terrain as the front works through. 

KEY MESSAGE 3...Expecting significant snowmelt over the coming
week. Minor river flooding possible.

The extended period of warmer conditions does raise concern for
rises in rivers/streams from the quicker melting of snowpack. 
Ensemble guidance indicates rising river/stream levels through 
the week. Ensembles show some locations, particularly on the CT 
and Merrimack Rivers, reaching at least action stage, if not 
minor flood stage within the next week. By late next week,
ensemble guidance indicates 40-60% probabilities for CT river 
locations to exceed minor flood stage and low probabilities (< 
15%) for moderate flood stage.

For some rivers across RI and eastern MA (e.g. Taunton River at
Bridgewater), snowmelt could lead to potential minor flooding as
early as Monday or Tuesday. We will also need to watch some of
the smaller rivers, such as the Pawcatuck River at Westerly, the
Assabet River at Maynard and the Shawsheen River at Wilmington
for possible flooding later next week. 

&&

.AVIATION /18Z SATURDAY THROUGH THURSDAY/...
Forecaster Confidence Levels...

Low - less than 30 percent. 
Moderate - 30 to 60 percent. 
High - greater than 60 percent.

Through Tonight...Moderate confidence.

IFR/LIFR conditions dominate through tonight. SSW surface winds
8-15 knots with some 20+ knot gusts through the afternoon and 
evening. Cigs/vsbys improve very slightly to IFR levels in some 
locations away from the south coast this afternoon and evening. 
However...LIFR conditions will be favored near the south coast 
where advection fog, dense at times, will impact areas near the 
south coast, Cape and Islands. 

A band of of showers will approach western MA/CT after 03z/04z 
tonight and may reach the coastal plain 06z/07z. While the 
showers will be undergoing a weakening trend...they still may 
survive in some form and reach the coast. Perhaps even an 
isolated rumble of thunder. S-SW winds will gust between 15 and 
25 knots. We also will have LLWS in the TAFS given an 850 mb 
southwest LLJ on the order of 55-70 knots.

Sunday...High confidence in trends with moderate confidence in 
timing. 

Gradual improvement will occur on Sunday with many locations 
eventually improving to VFR by mid afternoon...except for areas 
near the south coast, Cape & Islands where low clouds and fog 
may persist. SW winds should shift to the W at 10 to 15 knots. 

Sunday Night...High confidence.

VFR with light WSW winds.

KBOS Terminal...Moderate confidence in TAF.

Moderate confidence in overnight visby's. Wind speed performance 
has been below model guidance today, so if gusts don't kick in 
this evening then visby's will likely drop rapidly after sunset.

KBDL Terminal...High confidence in TAF.

Outlook /Monday through Thursday/...

Monday: VFR. Breezy. 

Monday Night through Tuesday: VFR. 

Tuesday Night: 

Wednesday: Breezy. Chance RA.

Wednesday Night: Windy with local gusts up to 30 kt. Chance RA.

Thursday: Windy with gusts up to 30 kt. Chance RA, SN likely.

&&

.MARINE...
Forecaster Confidence Levels...

Low - less than 30 percent. 
Moderate - 30 to 60 percent. 
High - greater than 60 percent.

Today through Sunday Night...High confidence. 

Lingering rough seas across the outer waters through this
weekend. In addition, a period of southwest wind gusts of 20 to
30 knots tonight into Sunday morning for most of our waters. 
Therefore, Small Craft Advisories continue for most souther New
England Waters.

Lastly, areas of fog and poor visibility will be an issue for 
mariners this entire weekend, especially near the south coast.

Outlook /Monday through Thursday/...

Monday through Monday Night: Winds less than 25 kt. Areas of
seas approaching 5 ft. 

Tuesday through Tuesday Night: Winds less than 25 kt. 

Wednesday: Winds less than 25 kt. Seas locally approaching
5 ft. Slight chance of rain. 

Wednesday Night: Strong winds with gusts up to 30 kt. Seas up
to 5 ft. Chance of rain. 

Thursday: Strong winds with gusts up to 35 kt. Rough seas up to
11 ft. Chance of rain. 

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory from 6 PM this evening to 10 AM EST 
     Sunday for ANZ231-234.
     Small Craft Advisory from 6 PM this evening to 7 PM EST Sunday 
     for ANZ232-233.
     Small Craft Advisory from 6 PM this evening to 1 AM EST Monday 
     for ANZ235-237.
     Small Craft Advisory until 10 PM EST Sunday for ANZ250.
     Small Craft Advisory until 1 PM EST Sunday for ANZ251.
     Small Craft Advisory until 7 AM EST Monday for ANZ254>256.

&&

$$

DISCUSSION...Belk/McMinn/Mensch
AVIATION...McMinn/Mensch
MARINE...Belk/Mensch

CLOSE