Lexington Weather

Lexington, Massachusetts, USA

59°F

6/23/2021 1:02am

Lexington Conditions: Overcast
Temperature: 58.6°F / 14.8°C
Dew Point: 57.2°F
Relative Humidity: 95%
Wind: Calm, 10-min avg: Calm, gust: 1 mph
Barometer: 29.81 in Rising Slowly
Visibility: 10 miles
Rain Today: 0.00 in

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Current Conditions [‒] Current Conditions [+]

58.6°F Colder than last hour.

14.8°C

Cool

Overcast

Tonight: Lo 54 °F

Wednesday: Hi 75 °F

Dew Point: 57.2°F Decreased 1.4°F since last hour.

Humidity: 95%

Barometer: 29.81 in Rising 0.03 inHg/hr

1009 mb

Rain Rate: 0.00 in/hr

Rain Today: 0.00 in

Rain Tuesday: 0.51 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: Calm

Gusts: 1 mph

OTHER PERSONAL WEATHER STATIONS

REGIONAL CONDITIONS

NWS Weather Forecast -
Tonight, Wednesday, & Wednesday Night through Tuesday

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Tue Jun 22, 2021 9:41pm EDT

Overview:

A much drier airmass moves in place as high pressure builds in overnight. Dry weather with very comfortable humidity levels persist Wednesday and Thursday. Warmer and more humid conditions return Friday and into the weekend.

Tonight:

Chance Rain Showers

Lo 54 °F

A chance of rain showers before 1am. Mostly cloudy, with a low around 54. Northwest wind around 8 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

Wednesday:

Sunny

Hi 75 °F

Sunny, with a high near 75. Northwest wind around 9 mph.

Wednesday Night:

Clear

Lo 53 °F

Clear, with a low around 53. West wind 1 to 7 mph.

Thursday:

Sunny

Hi 79 °F

Sunny, with a high near 79. Southeast wind 1 to 9 mph.

Thursday Night:

Mostly Clear

Lo 55 °F

Mostly clear, with a low around 55. Southeast wind 2 to 8 mph.

Friday:

Mostly Sunny

Hi 79 °F

Mostly sunny, with a high near 79. Southeast wind 2 to 8 mph.

Friday Night:

Partly Cloudy then Slight Chance Rain Showers

Lo 63 °F

A slight chance of rain showers after 5am. Partly cloudy, with a low around 63. South wind around 8 mph.

Saturday:

Slight Chance Rain Showers

Hi 86 °F

A slight chance of rain showers. Partly sunny, with a high near 86. Southwest wind 7 to 14 mph.

Saturday Night:

Chance Rain Showers

Lo 70 °F

A chance of rain showers. Mostly cloudy, with a low around 70. Southwest wind 9 to 13 mph.

Sunday:

Chance Rain Showers

Hi 90 °F

A chance of rain showers. Partly sunny, with a high near 90. Southwest wind 10 to 15 mph. Chance of precipitation is 30%.

Sunday Night:

Chance Rain Showers

Lo 70 °F

A chance of rain showers. Partly cloudy, with a low around 70. Southwest wind 8 to 13 mph. Chance of precipitation is 40%.

Monday:

Chance Rain Showers

Hi 91 °F

A chance of rain showers. Mostly sunny, with a high near 91. Southwest wind 9 to 13 mph. Chance of precipitation is 30%.

Monday Night:

Chance Rain Showers

Lo 71 °F

A chance of rain showers. Partly cloudy, with a low around 71. Southwest wind 7 to 12 mph. Chance of precipitation is 30%.

Tuesday:

Chance Rain Showers

Hi 89 °F

A chance of rain showers. Mostly sunny, with a high near 89. Southwest wind 8 to 13 mph. Chance of precipitation is 30%.

FULL FORECAST

NWS Hourly Forecast -
Today 1am through 4pm

Issued by:
National Weather Service Boston / Norton, MA
Updated Tue Jun 22, 2021 10:00pm EDT

1:00am

Cloudy

60°F
Dew Pt 54°F
Wind from NW

NW 7 mph
Precip: 13%

2:00am

Cloudy

58°F
Dew Pt 52°F
Wind from W

W 6 mph
Precip: 1%

3:00am

Mostly Cloudy

58°F
Dew Pt 51°F
Wind from W

W 7 mph
Precip: 1%

4:00am

Mostly Cloudy

57°F
Dew Pt 49°F
Wind from W

W 7 mph
Precip: 0%

5:00am

Partly Cloudy

55°F
Dew Pt 48°F
Wind from W

W 7 mph
Precip: 0%

6:00am

Sunny

55°F
Dew Pt 48°F
Wind from NW

NW 8 mph
Precip: 0%

7:00am

Sunny

56°F
Dew Pt 47°F
Wind from NW

NW 8 mph
Precip: 0%

8:00am

Sunny

60°F
Dew Pt 46°F
Wind from NW

NW 8 mph
Precip: 0%

9:00am

Sunny

61°F
Dew Pt 45°F
Wind from NW

NW 9 mph
Precip: 0%

10:00am

Sunny

64°F
Dew Pt 43°F
Wind from NW

NW 9 mph
Precip: 0%

11:00am

Sunny

67°F
Dew Pt 42°F
Wind from NW

NW 9 mph
Precip: 0%

12:00pm

Sunny

70°F
Dew Pt 41°F
Wind from NW

NW 9 mph
Precip: 0%

1:00pm

Sunny

72°F
Dew Pt 41°F
Wind from NW

NW 9 mph
Precip: 0%

2:00pm

Sunny

73°F
Dew Pt 41°F
Wind from W

W 8 mph
Precip: 0%

3:00pm

Sunny

75°F
Dew Pt 42°F
Wind from W

W 8 mph
Precip: 0%

4:00pm

Sunny

75°F
Dew Pt 42°F
Wind from W

W 8 mph
Precip: 0%

VIEW ON NWS WEB SITE

FORECAST DISCUSSION

Area Forecast Discussion
for Boston / Norton, MA

        
000
FXUS61 KBOX 230139
AFDBOX

Area Forecast Discussion
National Weather Service Boston/Norton MA
939 PM EDT Tue Jun 22 2021

.SYNOPSIS...

A much drier airmass moves in place as high pressure builds in 
overnight. Dry weather with very comfortable humidity levels 
persist Wednesday and Thursday. Warmer and more humid conditions
return Friday and into the weekend.

&&

.NEAR TERM /UNTIL 6 AM WEDNESDAY MORNING/...

940 PM Update...

Cold front has pushed offshore, but ana-frontal rain showers
were lingering a tad longer. The main shield was in the process
of exiting of the coast, but still a few leftover showers 
across central MA. Bulk of this activity will be over by 
midnight with perhaps just a spot shower or two lingers on the 
coast a bit longer. Otherwise, clearing will occur as drier air
will work into the region on northwest winds. Low temperatures 
by daybreak will mainly be in the 50s to near 60 towards the 
Cape/Islands. We probably will see a few upper 40s in the 
normally cooler spots of western MA. Enough northwest wind 
should be present in the boundary layer to prevent the formation
of fog. This will be quite the change in the airmass that was in
place early this morning!


&&

.SHORT TERM /6 AM WEDNESDAY MORNING THROUGH WEDNESDAY NIGHT/...

Highlights

* Dry and quiet weather as high pressure builds over southern New 
  England. Seasonable temperatures with comfortable humidity. 

Mid level ridge axis builds over the region through this 
period. At the surface high pressure will build over southern 
New England on Wednesday and moves offshore Wednesday night. 

Seasonable temperatures across the region and a much more 
comfortable airmass in place. Temperatures top out in the 70s 
across the region with dew points in the 40s. 

Mostly clear skies and a good radiational cooling across 
southern New England Wednesday night. Lows range from the mid 
40s to the 50s. May need to go lower in future updates as have 
gone with the 25th percentile of guidance at this point in time.

&&

.LONG TERM /THURSDAY THROUGH TUESDAY/...
Highlights...

* Mild to warm afternoons and cool nights through Thursday. 
* Summer heat and humidity returns by this weekend with the
  chance for scattered showers and thunderstorms. 

Details...

Lots of moving parts for this portion of the forecast. A low 
pressure is expected to pass by well to our SE Wednesday night 
into Thursday. HIgh pressure should then be the dominant weather
feature along the Eastern Seaboard late this week into early 
next week. The location will be important, with the core of this
high pressure south of the Maritimes. This will be close enough
to result in a predominantly south to southwest flow this 
weekend into early next week, meaning a return to increased heat
and humidity for most.

Precipitation-wise, the location of this high pressure will not
likely be close enough to keep us entirely dry during this 
time. Looking at at least a chance for mainly afternoon and 
evening showers and isolated thunderstorms each day Saturday 
through Tuesday.

&&

.AVIATION /02Z WEDNESDAY THROUGH SUNDAY/...
Forecaster Confidence Levels.

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

Tonight...High confidence. 

Showers and any leftover thunderstorms exiting the region from 
west to east between 00Z and 06Z. Initially will be MVFR with 
localized IFR, but should quickly improve to VFR drier air moves
in wake of a cold front. NW winds at 5-10 knots.

Wednesday...High confidence. 

VFR with NW to WNW around 5-10 knots.

Wednesday night...High confidence.

VFR with light and variable winds.

KBOS TAF...High confidence in TAF.

KBDL TAF...High confidence in TAF.

Outlook /Thursday through Sunday/...

Thursday through Friday: VFR. 

Friday Night: Mainly VFR, with local MVFR possible. Slight
chance SHRA.

Saturday: Mainly VFR, with local MVFR possible. Breezy. Slight
chance SHRA.

Saturday Night: VFR. Breezy. Chance SHRA.

Sunday: Mainly VFR, with local MVFR possible. Breezy. Slight
chance SHRA.

&&

.MARINE...
Forecaster Confidence Levels.

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

Tonight through Wednesday...High confidence

Showers and storms coming to an end as a cold front sweeps 
through. Seas remain elevated to Small Craft Advisory levels 
with the same timing as the previous shift had indicated into 
Wednesday. Seas take the longest to diminish across the eastern 
and southern outer waters. NW winds of 10-15 kts with gusts up 
to 20 kts. Winds diminish to 5-10 kts and shift to the S/SW 
Wednesday afternoon.

Wednesday night...High confidence.

Light southerly to southwesterly wind as high pressure builds
over the waters. Waves 2-4 ft. 

Outlook /Thursday through Sunday/...

Thursday: Winds less than 25 kt. 

Thursday Night: Winds less than 25 kt. Slight chance of rain
showers. 

Friday through Saturday: Winds less than 25 kt. 

Saturday Night: Winds less than 25 kt. Seas locally approaching
5 ft. Chance of rain showers. 

Sunday: Winds less than 25 kt. Areas of seas approaching 5 ft.
Slight chance of rain showers.

&&

.BOX WATCHES/WARNINGS/ADVISORIES...
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 2 PM EDT Wednesday for ANZ254>256.
     Small Craft Advisory until 11 AM EDT Wednesday for ANZ235-237.

&&

$$
SYNOPSIS...Belk/BL
NEAR TERM...Frank
SHORT TERM...BL
LONG TERM...Belk
AVIATION...Belk/BL
MARINE...Belk/BL