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.

Fair

40°F

4°C

Humidity 49%
Wind Speed SW 10 mph
Barometer 30.04 in (1017.1 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 13 Jan 9:54 am EST
Extended Forecast for

Charlestown MA

  • Today

    Today: Increasing clouds, with a high near 45. South wind around 11 mph.

    High: 45 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Cloudy, with a low around 36. South wind 13 to 15 mph.

    Low: 36 °F

    Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 50. Southwest wind 6 to 11 mph.

    High: 50 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of showers, mainly after 7pm. Cloudy, with a low around 34. South wind 6 to 9 mph. Chance of precipitation is 50%.

    Low: 34 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, mainly before 10am. Partly sunny, with a high near 42. Breezy, with a west wind 10 to 20 mph. Chance of precipitation is 40%.

    High: 42 °F

    Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 16. Breezy, with a west wind 18 to 21 mph.

    Low: 16 °F

    Partly Cloudy
    and Breezy

  • Friday

    Friday: Sunny, with a high near 30. West wind 8 to 16 mph.

    High: 30 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 25. Southwest wind around 6 mph.

    Low: 25 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 43. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 43 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 45. South wind around 11 mph.
Tonight
Cloudy, with a low around 36. South wind 13 to 15 mph.
Wednesday
Mostly cloudy, with a high near 50. Southwest wind 6 to 11 mph.
Wednesday Night
A chance of showers, mainly after 7pm. Cloudy, with a low around 34. South wind 6 to 9 mph. Chance of precipitation is 50%.
Thursday
A chance of showers, mainly before 10am. Partly sunny, with a high near 42. Breezy, with a west wind 10 to 20 mph. Chance of precipitation is 40%.
Thursday Night
Partly cloudy, with a low around 16. Breezy, with a west wind 18 to 21 mph.
Friday
Sunny, with a high near 30. West wind 8 to 16 mph.
Friday Night
Mostly cloudy, with a low around 25. Southwest wind around 6 mph.
Saturday
Mostly sunny, with a high near 43. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.
Saturday Night
A chance of snow showers before midnight, then a chance of rain showers between midnight and 3am, then a chance of snow showers after 3am. Mostly cloudy, with a low around 29. South wind around 6 mph. Chance of precipitation is 30%.
Sunday
A chance of snow showers. Partly sunny, with a high near 38. West wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 23. West wind around 7 mph.
M.L.King Day
Partly sunny, with a high near 32. West wind 8 to 10 mph, with gusts as high as 23 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:
5:20 am EST Jan 13, 2026
Forecast Valid:
10am EST Jan 13, 2026-6pm EST Jan 19, 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