Lexington Weather

Current Conditions [‒] Current Conditions [+]

40.8°F Colder than last hour.

4.9°C

Chilly

Mostly cloudy

Overnight: Lo 36 °F

Monday: Hi 52 °F

Dew Point: 29.1°F Decreased 3.1°F since last hour.

Humidity: 63% Decreased 4.0% since last hour.

Air Quality Index: 23

Good

(Ozone)

Barometer: 29.77 in Rising 0.02 inHg/hr

1008 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.00 in

Rain Sunday: 0.10 in

Visibility: 10 miles

Wind:

Now: 3 mph

Avg: 2 mph

Gusts: 9 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

Expected Snow [‒] Expected Snow [+]

Tap Click image to go to NWS winter weather page

Trace of snow expected in Lexington.

Forecast [‒] Forecast [+]

Daily Forecast
Hourly Forecast

NWS Weather Forecast -
Overnight, Monday, & Monday Night through Sunday

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Mon Apr 6, 2026 2:31am EDT

Overnight:

Mostly Clear

Lo 36 °F

Mostly clear, with a low around 36. West wind around 10 mph.

Monday:

Mostly Sunny

Hi 52 °F

Mostly sunny, with a high near 52. West wind around 12 mph, with gusts as high as 23 mph.

Monday Night:

Mostly Clear then Slight Chance Snow Showers

Lo 34 °F

A slight chance of snow showers after 5am. Mostly clear, with a low around 34. West wind 2 to 9 mph. Chance of precipitation is 20%.

Tuesday:

Chance Snow Showers then Chance Rain Showers

Hi 48 °F

A chance of snow showers before 9am, then a chance of rain showers. Partly sunny, with a high near 48. West wind 3 to 10 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

Tuesday Night:

Chance Snow Showers then Partly Cloudy

Lo 27 °F

A chance of snow showers before 8pm. Partly cloudy, with a low around 27. Northwest wind 5 to 9 mph. Chance of precipitation is 30%.

Wednesday:

Sunny

Hi 49 °F

Sunny, with a high near 49. North wind around 6 mph.

Wednesday Night:

Mostly Clear

Lo 30 °F

Mostly clear, with a low around 30. South wind around 7 mph.

Thursday:

Mostly Sunny

Hi 56 °F

Mostly sunny, with a high near 56. South wind 5 to 10 mph.

Thursday Night:

Partly Cloudy

Lo 38 °F

Partly cloudy, with a low around 38. South wind 5 to 9 mph.

Friday:

Partly Sunny

Hi 66 °F

Partly sunny, with a high near 66. Southwest wind 5 to 10 mph, with gusts as high as 21 mph.

Friday Night:

Slight Chance Rain Showers

Lo 48 °F

A slight chance of rain showers after 9pm. Mostly cloudy, with a low around 48. Southwest wind 6 to 9 mph.

Saturday:

Slight Chance Rain Showers then Mostly Sunny

Hi 68 °F

A slight chance of rain showers before 10am. Mostly sunny, with a high near 68. West wind around 8 mph.

Saturday Night:

Mostly Clear

Lo 42 °F

Mostly clear, with a low around 42. Northwest wind 3 to 7 mph.

Sunday:

Sunny

Hi 62 °F

Sunny, with a high near 62. East wind 3 to 8 mph.

FULL FORECAST

NWS Hourly Forecast -
Today 5am through Tue 4pm

Issued by:
National Weather Service Boston / Norton, MA
Updated Mon Apr 6, 2026 2:31am EDT

5:00am

Mostly Clear

37°F
Dew Pt 29°F
Wind Chill: 30°F
Wind from W

W 10 mph
Precip: 0%

6:00am

Sunny

37°F
Dew Pt 28°F
Wind Chill: 30°F
Wind from W

W 10 mph
Precip: 0%

7:00am

Sunny

36°F
Dew Pt 27°F
Wind Chill: 29°F
Wind from W

W 10 mph
Precip: 0%

8:00am

Sunny

38°F
Dew Pt 27°F
Wind Chill: 31°F
Wind from W

W 10 mph
Precip: 0%

9:00am

Mostly Sunny

40°F
Dew Pt 28°F
Wind Chill: 33°F
Wind from W

W 10 mph
Precip: 0%

10:00am

Partly Sunny

43°F
Dew Pt 28°F
Wind Chill: 37°F
Wind from W

W 10 mph
Precip: 0%

11:00am

Partly Sunny

44°F
Dew Pt 26°F
Wind Chill: 38°F
Wind from W

W 12 mph
Precip: 0%

12:00pm

Partly Sunny

46°F
Dew Pt 26°F
Wind Chill: 41°F
Wind from W

W 12 mph
Precip: 0%

1:00pm

Partly Sunny

47°F
Dew Pt 25°F
Wind Chill: 42°F
Wind from W

W 12 mph
Precip: 0%

2:00pm

Partly Sunny

49°F
Dew Pt 25°F
Wind Chill: 44°F
Wind from W

W 12 mph
Precip: 0%

3:00pm

Partly Sunny

50°F
Dew Pt 24°F
Wind Chill: 46°F
Wind from W

W 12 mph
Precip: 1%

4:00pm

Partly Sunny

50°F
Dew Pt 24°F
Wind Chill: 46°F
Wind from W

W 12 mph
Precip: 1%

5:00pm

Partly Sunny

51°F
Dew Pt 23°F
Wind from W

W 10 mph
Precip: 1%

6:00pm

Partly Cloudy

49°F
Dew Pt 23°F
Wind Chill: 45°F
Wind from W

W 9 mph
Precip: 1%

7:00pm

Partly Cloudy

47°F
Dew Pt 24°F
Wind Chill: 43°F
Wind from W

W 8 mph
Precip: 1%

8:00pm

Mostly Clear

46°F
Dew Pt 24°F
Wind Chill: 43°F
Wind from W

W 6 mph
Precip: 4%

9:00pm

Mostly Clear

41°F
Dew Pt 24°F
Wind Chill: 37°F
Wind from W

W 6 mph
Precip: 4%

10:00pm

Mostly Clear

40°F
Dew Pt 25°F
Wind Chill: 36°F
Wind from W

W 6 mph
Precip: 4%

11:00pm

Mostly Clear

39°F
Dew Pt 24°F
Wind Chill: 36°F
Wind from W

W 5 mph
Precip: 6%

Tue
12:00am

Partly Cloudy

38°F
Dew Pt 25°F
Wind Chill: 36°F
Wind from W

W 3 mph
Precip: 7%

Tue
1:00am

Mostly Clear

37°F
Dew Pt 24°F
Wind from W

W 2 mph
Precip: 8%

Tue
2:00am

Partly Cloudy

36°F
Dew Pt 24°F
Wind from W

W 2 mph
Precip: 12%

Tue
3:00am

Mostly Clear

35°F
Dew Pt 25°F
Wind from W

W 2 mph
Precip: 11%

Tue
4:00am

Partly Cloudy

35°F
Dew Pt 25°F
Wind from W

W 2 mph
Precip: 9%

Tue
5:00am

Slight Chance Snow Showers

35°F
Dew Pt 26°F
Wind Chill: 32°F
Wind from W

W 3 mph
Precip: 19%

Tue
6:00am

Chance Snow Showers

34°F
Dew Pt 26°F
Wind Chill: 31°F
Wind from W

W 3 mph
Precip: 30%

Tue
7:00am

Chance Snow Showers

35°F
Dew Pt 27°F
Wind Chill: 32°F
Wind from W

W 3 mph
Precip: 40%

Tue
8:00am

Chance Snow Showers

36°F
Dew Pt 27°F
Wind Chill: 32°F
Wind from W

W 5 mph
Precip: 51%

Tue
9:00am

Chance Rain Showers

38°F
Dew Pt 28°F
Wind Chill: 34°F
Wind from W

W 6 mph
Precip: 51%

Tue
10:00am

Chance Rain Showers

41°F
Dew Pt 29°F
Wind Chill: 37°F
Wind from W

W 6 mph
Precip: 51%

Tue
11:00am

Chance Rain Showers

43°F
Dew Pt 29°F
Wind Chill: 39°F
Wind from W

W 7 mph
Precip: 52%

Tue
12:00pm

Chance Rain Showers

44°F
Dew Pt 29°F
Wind Chill: 39°F
Wind from W

W 8 mph
Precip: 49%

Tue
1:00pm

Chance Rain Showers

45°F
Dew Pt 29°F
Wind Chill: 40°F
Wind from W

W 9 mph
Precip: 47%

Tue
2:00pm

Chance Rain Showers

46°F
Dew Pt 28°F
Wind Chill: 41°F
Wind from W

W 10 mph
Precip: 45%
Rain: 0.01 in

Tue
3:00pm

Chance Rain Showers

46°F
Dew Pt 26°F
Wind Chill: 41°F
Wind from NW

NW 10 mph
Precip: 43%
Rain: 0.01 in

Tue
4:00pm

Chance Rain Showers

46°F
Dew Pt 25°F
Wind Chill: 41°F
Wind from NW

NW 10 mph
Precip: 41%
Rain: 0.01 in

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 060746
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
346 AM EDT Mon Apr 6 2026

.WHAT HAS CHANGED...
No significant changes.

&&

.KEY MESSAGES...

- Mostly sunny, cool and blustery Monday. Could see a few
  rain/snow showers Monday night into Tuesday.

- Later in the week looks to remain mostly dry with temperatures
  on the rise.

&&

.DISCUSSION...

KEY MESSAGE 1...Mostly sunny, cool and blustery Monday. Could 
see a few rain/snow showers Monday night into Tuesday.

A upper-level trough moving through the Great Lakes and into 
New England will bring a cold pool aloft, with 850mb 
temperatures around -5C and 500mb temperatures below -30C. A 
shortwave then moves through, which would help support some 
light snow showers possibly developing and mixing in with rain 
showers, especially over the higher elevation areas. Guidance 
has trended towards a later start, perhaps after midnight/early 
Tuesday morning instead of Monday... though we can't rule out a 
stray shower developing today in the higher elevations. Surface 
temperatures will likely hover near or possibly just below 
freezing Monday night into Tuesday morning, but they're expected
to make a fast recovery later Tuesday morning... into the low 
to mid 40s. A secondary shortwave moves through later Tuesday 
and may allow showers to linger through part of the day, but not
expecting much in the way of rain totals.

KEY MESSAGE 2...Later in the week looks to remain mostly dry with 
temperatures on the rise.

Drier conditions and southwesterly flow are expected to return 
to southern New England as a large high pressure system moves 
into the Mid-Atlantic region Wednesday. Temperatures will 
improve throughout the second half of the week as the upper 
level trough moves off to the east and a warmer airmass advects 
into the region. Expecting highs to rebound into the 50s by 
Thursday and further improve into the 60s by Friday. However, 
some uncertainty remains towards the end of the week as some 
ensemble guidance hints at another backdoor front moving in 
Saturday night into Sunday. High pressure moving east from just 
to our north could encourage onshore flow early Sunday morning 
and possibly continuing through the day before it shifts further
offshore and winds return to SW.

&&

.AVIATION /07Z MONDAY THROUGH FRIDAY/...
Forecaster Confidence Levels...

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

06z TAF Update: 

Tonight: High confidence.

Mainly VFR; Some MVFR cigs possible in the higher terrain later
this afternoon. NW winds increasing through this morning to 
12-17 kt and gusts 25-35 kt, with the highest gusts in the 
higher terrains. 

Monday Night: High confidence overall, though moderate on 
possible precip chances. 

Disturbance aloft moves through Southern New England Mon night,
which will bring at least SCT-OVC cloud deck, mainly VFR 
ceilings. Less confident on if any precip with sweep through, 
but potential exists for brief periods of MVFR visby under 
-SHSN. NW winds decrease to 8-12 kt with gusts in low 20 knot range.

Tuesday: Moderate confidence.

Could see some -SHSN spreading east across SNE early Tues AM, 
but not very confident on exact timing or if anything will 
manifest at BOS. Generally W winds 10-15 knots with occasional 
gusts 20-25 knots possible. 

KBOS Terminal...High Confidence in TAF.

KBDL Terminal...High Confidence in TAF.

Outlook /Tuesday Night through Friday/...

Tuesday Night: VFR. Breezy. 

Wednesday through Wednesday Night: 

Thursday through Friday: Breezy. 

&&

.MARINE...
Forecaster Confidence Levels...

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

High confidence.

SCAs continue through most of today with seas at or above 5 ft 
across most waters and SW winds gusting 25-30 kts. Guidance has 
lowered on wind speeds Mon night into Tues morning, so elected 
to allow SCAs to expire later this afternoon.

Seas remain below 5 ft through Tuesday, but some northwesterly 
wind gusts may approach SCA levels Tuesday evening across the 
southern waters ahead of an approaching high pressure system.

Outlook /Tuesday Night through Friday/...

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

Wednesday: Winds less than 25 kt. Seas locally approaching
5 ft. 

Wednesday Night through Thursday Night: Winds less than 25 kt. 

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

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 2 PM EDT this afternoon for ANZ250.
     Small Craft Advisory until 8 PM EDT this evening for 
     ANZ254>256.

&&

$$

DISCUSSION...McMinn
AVIATION...McMinn
MARINE...McMinn

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