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Lexington Weather

Lexington, Massachusetts, USA

48°F
5/1/2026 3:17am 
  • Lexington Conditions: Overcast
  • Temperature: 47.7°F / 8.7°CColder 1.8°F than last hour.
  • Dew Point: 41.7°FDecreased 4.3°Fsince last hour.
  • Relative Humidity: 80%Decreased 8.0% since last hour.
  • Wind: Calm, 10-min avg: Calm, gust: 1 mph
  • Barometer: 29.72 inRising 0.02  inHg/hr Rising Slowly
  • Visibility: 10 miles
  • Rain Today: 0.00 in
  •   

Current Conditions [‒] Current Conditions [+]

47.7°F Colder than last hour.

8.7°C

 

 Chilly 

Overcast

Overcast

Tonight:  Lo 43 °F

Friday:  Hi 64 °F

 

Dew Point:  41.7°F Decreased 4.3°F since last hour.

Humidity:  80% Decreased 8.0% since last hour.

 

Air Quality Index: 17

 Good 

(Fine Particles)

Barometer:  29.72 in Rising 0.02  inHg/hr

1006 mb

 

Rain Rate:  0.00 in/hr

Rain Today:  0.00 in

Rain Thursday 0.26 in

Visibility: 10 miles

Wind:

Now: Calm

Avg: Calm

Gusts: 1 mph

Calm wind


Forecast [‒] Forecast [+]

NWS Weather Forecast -
Tonight, Friday, & Friday Night through Thursday

Issued by:
National Weather Service Boston / Norton, MA
Point Forecast Updated Thu Apr 30, 2026 6:51pm EDT


Overview:

- Mostly clear, breezy, and cooler today and tonight.

- Scattered showers Saturday with a better chance for rainfall Saturday night into Sunday

- A dry and mild start to the week gives way to unsettled conditions mid to late week.


Tonight:

Slight Chance Rain Showers then Mostly Cloudy

Lo 43 °F

Tonight: Slight Chance Rain Showers then Mostly Cloudy

A slight chance of rain showers between 10pm and 11pm. Mostly cloudy, with a low around 43. West wind 1 to 6 mph. Chance of precipitation is 20%.


Friday:

Mostly Sunny

Hi 64 °F

Friday: Mostly Sunny

Mostly sunny, with a high near 64. Northwest wind 6 to 9 mph.


Friday Night:

Partly Cloudy then Slight Chance Rain Showers

Lo 43 °F

Friday Night: Partly Cloudy then Slight Chance Rain Showers

A slight chance of rain showers after 3am. Partly cloudy, with a low around 43. West wind 2 to 6 mph. Chance of precipitation is 20%.


Saturday:

Chance Rain Showers

Hi 59 °F

Saturday: Chance Rain Showers

A chance of rain showers. Mostly cloudy, with a high near 59. Southwest wind 2 to 7 mph. Chance of precipitation is 30%.


Saturday Night:

Chance Rain Showers

Lo 44 °F

Saturday Night: Chance Rain Showers

A chance of rain showers. Mostly cloudy, with a low around 44. Southwest wind around 6 mph. Chance of precipitation is 50%.


Sunday:

Chance Rain Showers

Hi 57 °F

Sunday: Chance Rain Showers

A chance of rain showers. Mostly cloudy, with a high near 57. Northwest wind 5 to 9 mph. Chance of precipitation is 50%.


Sunday Night:

Slight Chance Rain Showers then Partly Cloudy

Lo 39 °F

Sunday Night: Slight Chance Rain Showers then Partly Cloudy

A slight chance of rain showers before 7pm. Partly cloudy, with a low around 39. West wind 5 to 8 mph.


Monday:

Sunny

Hi 66 °F

Monday: Sunny

Sunny, with a high near 66. Southwest wind 5 to 14 mph, with gusts as high as 24 mph.


Monday Night:

Slight Chance Rain Showers

Lo 51 °F

Monday Night: Slight Chance Rain Showers

A slight chance of rain showers after 11pm. Partly cloudy, with a low around 51. Southwest wind around 12 mph, with gusts as high as 22 mph.


Tuesday:

Slight Chance Rain Showers

Hi 74 °F

Tuesday: Slight Chance Rain Showers

A slight chance of rain showers. Mostly sunny, with a high near 74. Southwest wind 10 to 15 mph, with gusts as high as 28 mph.


Tuesday Night:

Slight Chance Rain Showers

Lo 56 °F

Tuesday Night: Slight Chance Rain Showers

A slight chance of rain showers. Partly cloudy, with a low around 56. South wind 10 to 14 mph, with gusts as high as 26 mph.


Wednesday:

Slight Chance Rain Showers

Hi 72 °F

Wednesday: Slight Chance Rain Showers

A slight chance of rain showers. Partly sunny, with a high near 72. South wind 9 to 16 mph, with gusts as high as 31 mph.


Wednesday Night:

Rain Showers Likely

Lo 53 °F

Wednesday Night: Rain Showers Likely

Rain showers likely. Mostly cloudy, with a low around 53. South wind 8 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 70%.


Thursday:

Rain Showers Likely

Hi 66 °F

Thursday: Rain Showers Likely

Rain showers likely. Mostly cloudy, with a high near 66. South wind around 10 mph, with gusts as high as 21 mph.


NWS Hourly Forecast -
Today 3am through Sat 2pm

Issued by:
National Weather Service Boston / Norton, MA
Updated Fri May 1, 2026 2:43am EDT

 
3:00am
Fri 3:00am: Mostly Cloudy
Mostly Cloudy
46°F
Dew Pt 42°F
Wind Chill: 43°F
Wind from NW NW 6 mph
Precip: 2%
 
4:00am
Fri 4:00am: Mostly Cloudy
Mostly Cloudy
45°F
Dew Pt 40°F
Wind Chill: 42°F
Wind from NW NW 6 mph
Precip: 2%
 
5:00am
Fri 5:00am: Partly Cloudy
Partly Cloudy
44°F
Dew Pt 39°F
Wind Chill: 41°F
Wind from NW NW 6 mph
Precip: 1%
 
6:00am
Fri 6:00am: Mostly Sunny
Mostly Sunny
44°F
Dew Pt 39°F
Wind Chill: 41°F
Wind from NW NW 6 mph
Precip: 0%
 
7:00am
Fri 7:00am: Sunny
Sunny
45°F
Dew Pt 38°F
Wind Chill: 41°F
Wind from NW NW 7 mph
Precip: 0%
 
8:00am
Fri 8:00am: Sunny
Sunny
48°F
Dew Pt 38°F
Wind Chill: 45°F
Wind from NW NW 7 mph
Precip: 0%
 
9:00am
Fri 9:00am: Sunny
Sunny
50°F
Dew Pt 36°F
Wind Chill: 47°F
Wind from NW NW 7 mph
Precip: 0%
 
10:00am
Fri 10:00am: Sunny
Sunny
53°F
Dew Pt 35°F
Wind from NW NW 8 mph
Precip: 0%
 
11:00am
Fri 11:00am: Sunny
Sunny
56°F
Dew Pt 34°F
Wind from NW NW 8 mph
Precip: 0%
 
12:00pm
Fri 12:00pm: Sunny
Sunny
58°F
Dew Pt 34°F
Wind from NW NW 8 mph
Precip: 0%
 
1:00pm
Fri 1:00pm: Sunny
Sunny
59°F
Dew Pt 33°F
Wind from W W 9 mph
Precip: 0%
 
2:00pm
Fri 2:00pm: Sunny
Sunny
61°F
Dew Pt 32°F
Wind from W W 9 mph
Precip: 0%
 
3:00pm
Fri 3:00pm: Sunny
Sunny
62°F
Dew Pt 32°F
Wind from W W 9 mph
Precip: 0%
 
4:00pm
Fri 4:00pm: Sunny
Sunny
62°F
Dew Pt 31°F
Wind from W W 8 mph
Precip: 0%
 
5:00pm
Fri 5:00pm: Sunny
Sunny
62°F
Dew Pt 29°F
Wind from W W 8 mph
Precip: 0%
 
6:00pm
Fri 6:00pm: Mostly Clear
Mostly Clear
61°F
Dew Pt 30°F
Wind from W W 6 mph
Precip: 1%
 
7:00pm
Fri 7:00pm: Mostly Clear
Mostly Clear
59°F
Dew Pt 31°F
Wind from NW NW 6 mph
Precip: 1%
 
8:00pm
Fri 8:00pm: Mostly Clear
Mostly Clear
55°F
Dew Pt 32°F
Wind from NW NW 5 mph
Precip: 3%
 
9:00pm
Fri 9:00pm: Mostly Clear
Mostly Clear
53°F
Dew Pt 33°F
Wind from NW NW 5 mph
Precip: 4%
 
10:00pm
Fri 10:00pm: Mostly Clear
Mostly Clear
52°F
Dew Pt 33°F
Wind from NW NW 5 mph
Precip: 4%
 
11:00pm
Fri 11:00pm: Partly Cloudy
Partly Cloudy
50°F
Dew Pt 33°F
Wind Chill: 49°F
Wind from W W 3 mph
Precip: 5%
Sat
12:00am
Sat 12:00am: Partly Cloudy
Partly Cloudy
49°F
Dew Pt 33°F
Wind Chill: 48°F
Wind from W W 3 mph
Precip: 5%
Sat
1:00am
Sat 1:00am: Partly Cloudy
Partly Cloudy
48°F
Dew Pt 34°F
Wind from W W 2 mph
Precip: 5%
Sat
2:00am
Sat 2:00am: Partly Cloudy
Partly Cloudy
47°F
Dew Pt 35°F
Wind from W W 2 mph
Precip: 14%
Sat
3:00am
Sat 3:00am: Slight Chance Rain Showers
Slight Chance Rain Showers
47°F
Dew Pt 35°F
Wind from W W 2 mph
Precip: 20%
Sat
4:00am
Sat 4:00am: Slight Chance Rain Showers
Slight Chance Rain Showers
47°F
Dew Pt 36°F
Wind from W W 2 mph
Precip: 23%
Sat
5:00am
Sat 5:00am: Slight Chance Rain Showers
Slight Chance Rain Showers
46°F
Dew Pt 37°F
Wind from W W 2 mph
Precip: 23%
Sat
6:00am
Sat 6:00am: Slight Chance Rain Showers
Slight Chance Rain Showers
45°F
Dew Pt 38°F
Wind from W W 2 mph
Precip: 21%
Sat
7:00am
Sat 7:00am: Slight Chance Rain Showers
Slight Chance Rain Showers
47°F
Dew Pt 39°F
Wind Chill: 46°F
Wind from W W 3 mph
Precip: 21%
Sat
8:00am
Sat 8:00am: Chance Rain Showers
Chance Rain Showers
50°F
Dew Pt 40°F
Wind Chill: 49°F
Wind from SW SW 3 mph
Precip: 43%
Sat
9:00am
Sat 9:00am: Chance Rain Showers
Chance Rain Showers
51°F
Dew Pt 40°F
Wind from SW SW 3 mph
Precip: 43%
Sat
10:00am
Sat 10:00am: Chance Rain Showers
Chance Rain Showers
53°F
Dew Pt 40°F
Wind from SW SW 5 mph
Precip: 43%
Sat
11:00am
Sat 11:00am: Chance Rain Showers
Chance Rain Showers
55°F
Dew Pt 41°F
Wind from SW SW 6 mph
Precip: 44%
Sat
12:00pm
Sat 12:00pm: Chance Rain Showers
Chance Rain Showers
57°F
Dew Pt 41°F
Wind from SW SW 7 mph
Precip: 44%
Sat
1:00pm
Sat 1:00pm: Chance Rain Showers
Chance Rain Showers
58°F
Dew Pt 41°F
Wind from SW SW 7 mph
Precip: 45%
Sat
2:00pm
Sat 2:00pm: Chance Rain Showers
Chance Rain Showers
58°F
Dew Pt 41°F
Wind from SW SW 7 mph
Precip: 46%




Radar [‒] Radar [+]

Satellite [‒] Satellite [+]

Satellite images courtesy Weather Underground / Intellicast.

GOES East  

Tap Click image to go to NESDIS

Weather Underground Visible

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Weather Underground Infrared

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UV Forecast [‒] UV Forecast [+]

UV Index forecast from the Environmental Protection Agency

UV Index forecast high for today: 5    Medium 

Current (Estimated): 0   None

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:

0.00 in

Rain Today:

0.26 in

Thursday:

0.00 in

May:

7.50 in

2026

51.1 in

Season Snow:

Daily Extremes [‒] Daily Extremes [+]

12:00am

51.3°F

High today:

3:14am

47.7°F

Low today:

5:31pm

54.0°F

High Thursday:

3:16am

45.9°F

Low Thursday:

2:17am

47.7°F

Low wind chill today:

3:16am

45.9°F

Low wind chill Thursday:

12:00am

48.7°F

High dew pt today:

5:31pm

51.1°F

High dew pt Thursday:

2:17am

5 mph

Wind gust today:

6:32am

1 mph

Wind gust Thursday:


Alerts / Advisories [‒] Alerts / Advisories [+]

Sun / Moon [‒] Sun / Moon [+]

Sun

First Light:

5:09am

Sunrise:

5:39am

Sunset:

7:45pm

Twilight ends:

8:15pm

Daylight length:

14 hours 5 minutes

Full Moon, Moon age: 13 days, 19 hours, 26 minutes, 100%

Phase:

Full Moon (100%)

Moon set:

5:10am

Moon rise:

8:10pm


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