Lexington Weather

Current Conditions [‒] Current Conditions [+]

41.4°F Warmer than last hour.

5.2°C

Chilly

Clear

Today: Hi 46 °F

Tonight: Lo 25 °F

Dew Point: 22.1°F Increased 0.5°F since last hour .

Humidity: 46%

Air Quality Index: 30

Good

(Ozone)

Barometer: 30.01 in S

1016 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.09 in

Rain Thursday: 0.12 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: Calm

Gusts: 1 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

NWS Weather Forecast -
Today, Tonight, & Saturday through Thursday Night

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Fri Mar 27, 2026 2:50am EDT

Today:

Partly Sunny

Hi 46 °F

Partly sunny, with a high near 46. North wind 8 to 15 mph, with gusts as high as 25 mph.

Tonight:

Mostly Clear

Lo 25 °F

Mostly clear, with a low around 25. North wind around 7 mph.

Saturday:

Mostly Sunny

Hi 37 °F

Mostly sunny, with a high near 37. Northwest wind around 8 mph.

Saturday Night:

Partly Cloudy

Lo 26 °F

Partly cloudy, with a low around 26. West wind around 7 mph.

Sunday:

Mostly Sunny

Hi 48 °F

Mostly sunny, with a high near 48. Southwest wind 5 to 12 mph, with gusts as high as 22 mph.

Sunday Night:

Mostly Cloudy

Lo 38 °F

Mostly cloudy, with a low around 38. Southwest wind around 10 mph.

Monday:

Partly Sunny

Hi 60 °F

Partly sunny, with a high near 60. Southwest wind 8 to 12 mph, with gusts as high as 22 mph.

Monday Night:

Mostly Cloudy

Lo 40 °F

Mostly cloudy, with a low around 40. West wind 5 to 9 mph.

Tuesday:

Chance Light Rain

Hi 56 °F

A chance of rain. Partly sunny, with a high near 56. East wind 5 to 9 mph. Chance of precipitation is 40%.

Tuesday Night:

Chance Light Rain

Lo 43 °F

A chance of rain. Mostly cloudy, with a low around 43. South wind around 9 mph. Chance of precipitation is 50%.

Wednesday:

Chance Light Rain

Hi 64 °F

A chance of rain. Mostly cloudy, with a high near 64. Southwest wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

Wednesday Night:

Chance Light Rain

Lo 50 °F

A chance of rain. Mostly cloudy, with a low around 50. West wind around 9 mph. Chance of precipitation is 50%.

Thursday:

Chance Light Rain

Hi 65 °F

A chance of rain. Mostly cloudy, with a high near 65. Northwest wind around 10 mph. Chance of precipitation is 30%.

Thursday Night:

Chance Light Rain

Lo 42 °F

A chance of rain. Mostly cloudy, with a low around 42. Northeast wind around 8 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 2pm through Sun 1am

Issued by:
National Weather Service Boston / Norton, MA
Updated Fri Mar 27, 2026 2:50am EDT

2:00pm

Partly Sunny

45°F
Dew Pt 19°F
Wind Chill: 39°F
Wind from N

N 12 mph
Precip: 0%

3:00pm

Mostly Sunny

44°F
Dew Pt 17°F
Wind Chill: 38°F
Wind from N

N 12 mph
Precip: 0%

4:00pm

Mostly Sunny

44°F
Dew Pt 16°F
Wind Chill: 39°F
Wind from N

N 9 mph
Precip: 0%

5:00pm

Mostly Sunny

43°F
Dew Pt 15°F
Wind Chill: 38°F
Wind from N

N 8 mph
Precip: 0%

6:00pm

Mostly Clear

42°F
Dew Pt 15°F
Wind Chill: 38°F
Wind from N

N 7 mph
Precip: 0%

7:00pm

Mostly Clear

39°F
Dew Pt 16°F
Wind Chill: 34°F
Wind from N

N 7 mph
Precip: 0%

8:00pm

Mostly Clear

37°F
Dew Pt 16°F
Wind Chill: 32°F
Wind from N

N 7 mph
Precip: 0%

9:00pm

Mostly Clear

35°F
Dew Pt 16°F
Wind Chill: 30°F
Wind from N

N 6 mph
Precip: 0%

10:00pm

Mostly Clear

34°F
Dew Pt 16°F
Wind Chill: 29°F
Wind from N

N 6 mph
Precip: 0%

11:00pm

Mostly Clear

32°F
Dew Pt 15°F
Wind Chill: 26°F
Wind from N

N 6 mph
Precip: 0%

Sat
12:00am

Mostly Clear

31°F
Dew Pt 15°F
Wind Chill: 25°F
Wind from N

N 6 mph
Precip: 0%

Sat
1:00am

Mostly Clear

30°F
Dew Pt 15°F
Wind Chill: 24°F
Wind from N

N 6 mph
Precip: 0%

Sat
2:00am

Mostly Clear

29°F
Dew Pt 13°F
Wind Chill: 23°F
Wind from N

N 6 mph
Precip: 0%

Sat
3:00am

Partly Cloudy

28°F
Dew Pt 14°F
Wind Chill: 22°F
Wind from N

N 6 mph
Precip: 0%

Sat
4:00am

Partly Cloudy

27°F
Dew Pt 13°F
Wind Chill: 20°F
Wind from N

N 6 mph
Precip: 1%

Sat
5:00am

Partly Cloudy

27°F
Dew Pt 13°F
Wind Chill: 20°F
Wind from N

N 6 mph
Precip: 1%

Sat
6:00am

Mostly Sunny

27°F
Dew Pt 12°F
Wind Chill: 20°F
Wind from N

N 6 mph
Precip: 2%

Sat
7:00am

Mostly Sunny

25°F
Dew Pt 11°F
Wind Chill: 18°F
Wind from N

N 6 mph
Precip: 2%

Sat
8:00am

Mostly Sunny

27°F
Dew Pt 11°F
Wind Chill: 20°F
Wind from N

N 7 mph
Precip: 3%

Sat
9:00am

Mostly Sunny

28°F
Dew Pt 11°F
Wind Chill: 21°F
Wind from N

N 7 mph
Precip: 3%

Sat
10:00am

Mostly Sunny

30°F
Dew Pt 10°F
Wind Chill: 23°F
Wind from N

N 7 mph
Precip: 4%

Sat
11:00am

Mostly Sunny

32°F
Dew Pt 9°F
Wind Chill: 26°F
Wind from N

N 7 mph
Precip: 4%

Sat
12:00pm

Mostly Sunny

33°F
Dew Pt 8°F
Wind Chill: 27°F
Wind from N

N 7 mph
Precip: 4%

Sat
1:00pm

Partly Sunny

35°F
Dew Pt 7°F
Wind Chill: 28°F
Wind from NW

NW 8 mph
Precip: 3%

Sat
2:00pm

Partly Sunny

35°F
Dew Pt 6°F
Wind Chill: 28°F
Wind from NW

NW 8 mph
Precip: 3%

Sat
3:00pm

Partly Sunny

36°F
Dew Pt 5°F
Wind Chill: 30°F
Wind from NW

NW 8 mph
Precip: 2%

Sat
4:00pm

Partly Sunny

36°F
Dew Pt 5°F
Wind Chill: 30°F
Wind from NW

NW 8 mph
Precip: 2%

Sat
5:00pm

Partly Sunny

36°F
Dew Pt 5°F
Wind Chill: 30°F
Wind from NW

NW 7 mph
Precip: 1%

Sat
6:00pm

Mostly Cloudy

35°F
Dew Pt 6°F
Wind Chill: 29°F
Wind from NW

NW 7 mph
Precip: 1%

Sat
7:00pm

Mostly Cloudy

34°F
Dew Pt 7°F
Wind Chill: 29°F
Wind from NW

NW 6 mph
Precip: 1%

Sat
8:00pm

Mostly Cloudy

33°F
Dew Pt 9°F
Wind Chill: 29°F
Wind from NW

NW 5 mph
Precip: 1%

Sat
9:00pm

Partly Cloudy

32°F
Dew Pt 10°F
Wind Chill: 27°F
Wind from W

W 5 mph
Precip: 1%

Sat
10:00pm

Partly Cloudy

31°F
Dew Pt 11°F
Wind Chill: 26°F
Wind from W

W 5 mph
Precip: 1%

Sat
11:00pm

Partly Cloudy

30°F
Dew Pt 12°F
Wind Chill: 25°F
Wind from W

W 5 mph
Precip: 1%

Sun
12:00am

Partly Cloudy

29°F
Dew Pt 12°F
Wind Chill: 24°F
Wind from W

W 5 mph
Precip: 1%

Sun
1:00am

Partly Cloudy

29°F
Dew Pt 12°F
Wind Chill: 24°F
Wind from W

W 5 mph
Precip: 1%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 271815
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
215 PM EDT Fri Mar 27 2026

.WHAT HAS CHANGED...
No changes since last update.


&&

.KEY MESSAGES...

- Cold and dry for the first half of the weekend


- Warm, dry, and windy Sunday then trending unsettled again with 
periods of showers Tuesday through late-week. 


&&

.DISCUSSION...
KEY MESSAGE 1...Cool and dry for the first half of the weekend

North/northwest flow behind an exiting cold front continues to usher 
cooler air into southern New England this afternoon. The high 
temperature at WFO Norton today is 48 degrees and that was observed 
at 7AM this morning! The air mass advecting in from the north will 
support cold/dry conditions through tomorrow night. Low temps 
tonight bottom out in the low to mid 20s for most of the region. 
This will be followed by a sunny albeit chilly March afternoon with 
highs peaking in the mid to upper 30s. Winds begin to shift 
southwest tomorrow night into Sunday which should support milder 
temperatures for Sunday afternoon.


KEY MESSAGE 2... Warm, dry, and windy Sunday then trending unsettled 
again with periods of showers Tuesday through late-week. 

Temperatures moderate Sunday as the mid-level trough exits to the 
east. This will bring high temperatures back to seasonable values in 
the mid to upper 40s. Conditions will be on the windier side with a 
SW LLJ jet nudging in from the south later Sunday. Model sounding 
profiles indicate a well-mixed boundary layer with a wider dewpoint 
depressions, supporting gusty winds (20-30 mph) and also fairly dry 
conditions. Something to keep an eye on for marginal fire weather 
conditions in areas across interior southern New England. 

The pattern trends unsettled early next week with ensemble guidance 
showing a series of mainly weak shortwave troughs moving through the 
flow, tracking across southern New England. There are still timing 
differences in the timing of the individual waves across 
deterministic/ensemble guidance. A plume of anomalous moisture 
begins to advect in by early Tuesday, followed by the first round of 
scattered showers around that timeframe. Expect periodic chances for 
showers through the remainder of the week. Temperatures will be 
mainly above normal for the first half of the week, even with a 
chance at hitting 70 Wednesday. A cold front moves through later in 
the week, trending temperatures back to seasonable/slightly cooler 
temperatures. &&

.AVIATION /18Z FRIDAY THROUGH WEDNESDAY/...
Low - less than 30 percent. 
Moderate - 30 to 60 percent. 
High - greater than 60 percent.

18Z TAF Update:

Through 00Z...High Confidence

VFR. Gusty north northwest winds gradually diminish to around 10
knots by 00Z.

Tonight...High Confidence

VFR. North winds 5-10 knots.

Tomorrow...High Confidence

VFR. Northwest winds around 10 knots.

Tomorrow Night...High Confidence

VFR. 10 knot northwest winds becoming light out of the
west/southwest around 5 knots.

KBOS Terminal...High confidence in TAF.

KBDL Terminal...High confidence in TAF.

Outlook /Sunday through Wednesday/...

Sunday through Monday: VFR. Breezy. 

Monday Night: Mainly VFR, with local MVFR possible. Breezy.
Slight chance RA.

Tuesday: Mainly VFR, with local MVFR possible. Breezy. Chance
RA.

Tuesday Night: Mainly VFR, with areas IFR possible. Breezy.
Chance RA.

Wednesday: Mainly VFR, with areas IFR possible. Windy with
local gusts up to 30 kt. Chance RA.

&&

.MARINE...
Forecaster Confidence Levels...

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

Rest of Today through Tomorrow Night

Gusty north/northwest winds and 4-6 foot seas gradually diminish and 
subside overnight as high pressure builds in from the west. 
Relatively quiet weather across the coastal waters by March 
standards thereafter with 10-20 knot northerly with prevailing 
through Saturday. Winds begin to shift to the west/southwest 
Saturday night into Sunday morning.

Outlook /Sunday through Wednesday/...

Sunday: Low risk for Small Craft Advisory winds with gusts up
to 25 kt. Seas locally approaching 5 ft. 

Sunday Night: Low risk for Small Craft Advisory winds with
gusts up to 25 kt. Seas up to 5 ft. 

Monday: Low risk for Small Craft Advisory winds with gusts up
to 25 kt. Local rough seas. 

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

Tuesday: Winds less than 25 kt. Areas of seas approaching 5 ft.
Chance of rain. 

Tuesday Night: Moderate risk for Small Craft Advisory winds
with local gusts up to 30 kt. Areas of rough seas. Chance of
rain. 

Wednesday: Moderate risk for Small Craft Advisory winds with
local gusts up to 30 kt. Rough seas up to 9 ft. Chance of rain.

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 5 PM EDT this afternoon for ANZ235-
     237.
     Small Craft Advisory until 8 PM EDT this evening for ANZ250.
     Small Craft Advisory until 7 PM EDT Saturday for ANZ254-255.
     Small Craft Advisory until 1 AM EDT Saturday for ANZ256.

&&

$$

DISCUSSION...Mensch/RM
AVIATION...Mensch/RM
MARINE...Mensch/RM

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