National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

Mostly Cloudy

57°F

14°C

Humidity 42%
Wind Speed E 13 mph
Barometer 30.44 in (1030.8 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 22 May 11:54 am EDT
Extended Forecast for

Charlestown MA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 62. East wind around 9 mph.

    High: 62 °F

    Partly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 50. Light and variable wind.

    Low: 50 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Cloudy, with a high near 63. Calm wind becoming east 5 to 9 mph in the morning.

    High: 63 °F

    Cloudy

  • Saturday Night

    Saturday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 49. East wind 3 to 5 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Cloudy then
    Chance
    Showers

  • Sunday

    Sunday: Showers. High near 57. East wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%.

    High: 57 °F

    Showers

  • Sunday Night

    Sunday Night: Showers, mainly before 2am. Low around 52. East wind 6 to 9 mph. Chance of precipitation is 80%.

    Low: 52 °F

    Showers

  • Memorial Day

    Memorial Day: A chance of showers before 3pm. Mostly cloudy, with a high near 71. North wind 5 to 7 mph. Chance of precipitation is 50%.

    High: 71 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 79. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 79 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 62. East wind around 9 mph.
Tonight
Increasing clouds, with a low around 50. Light and variable wind.
Saturday
Cloudy, with a high near 63. Calm wind becoming east 5 to 9 mph in the morning.
Saturday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 49. East wind 3 to 5 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers. High near 57. East wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%.
Sunday Night
Showers, mainly before 2am. Low around 52. East wind 6 to 9 mph. Chance of precipitation is 80%.
Memorial Day
A chance of showers before 3pm. Mostly cloudy, with a high near 71. North wind 5 to 7 mph. Chance of precipitation is 50%.
Monday Night
Mostly cloudy, with a low around 56. Calm wind.
Tuesday
Partly sunny, with a high near 79. Calm wind becoming south 5 to 7 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 59. West wind around 6 mph.
Wednesday
Mostly sunny, with a high near 82. West wind 6 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 56. Northwest wind 5 to 7 mph.
Thursday
Mostly sunny, with a high near 71. Northeast wind 6 to 9 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Charlestown MA
 42.38°N 71.07°W (Elev. 3 ft)
Last Update:
5:39 am EDT May 22, 2026
Forecast Valid:
12pm EDT May 22, 2026-6pm EDT May 28, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation