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.

Overcast

58°F

14°C

Humidity 87%
Wind Speed SW 10 mph
Barometer 29.65 in (1003.9 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 11 Mar 11:54 pm EDT
Extended Forecast for

Charlestown MA

  • Overnight

    Overnight: A chance of showers, mainly after 1am. Patchy fog after 3am. Otherwise, cloudy, with a low around 44. South wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

    Low: 44 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: A chance of showers. Cloudy, with a temperature falling to around 43 by 4pm. Southwest wind 9 to 14 mph becoming west in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F⇓

    Chance
    Showers

  • Thursday Night

    Thursday Night: Cloudy during the early evening, then gradual clearing, with a low around 30. West wind 7 to 9 mph, with gusts as high as 20 mph.

    Low: 30 °F

    Gradual
    Clearing

  • Friday

    Friday: Increasing clouds, with a high near 45. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 45 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A slight chance of rain between 9pm and 2am. Mostly cloudy, with a low around 37. South wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 37 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 48. West wind 10 to 16 mph, with gusts as high as 30 mph.

    High: 48 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29. West wind 6 to 11 mph, with gusts as high as 22 mph.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly cloudy, with a high near 44. Light and variable wind becoming southeast 5 to 7 mph in the afternoon.

    High: 44 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain likely, mainly after 5am. Cloudy, with a low around 37. Southeast wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    Low: 37 °F

    Cloudy then
    Rain Likely

Detailed Forecast

Overnight
A chance of showers, mainly after 1am. Patchy fog after 3am. Otherwise, cloudy, with a low around 44. South wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.
Thursday
A chance of showers. Cloudy, with a temperature falling to around 43 by 4pm. Southwest wind 9 to 14 mph becoming west in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Cloudy during the early evening, then gradual clearing, with a low around 30. West wind 7 to 9 mph, with gusts as high as 20 mph.
Friday
Increasing clouds, with a high near 45. South wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
A slight chance of rain between 9pm and 2am. Mostly cloudy, with a low around 37. South wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 48. West wind 10 to 16 mph, with gusts as high as 30 mph.
Saturday Night
Mostly clear, with a low around 29. West wind 6 to 11 mph, with gusts as high as 22 mph.
Sunday
Mostly cloudy, with a high near 44. Light and variable wind becoming southeast 5 to 7 mph in the afternoon.
Sunday Night
Rain likely, mainly after 5am. Cloudy, with a low around 37. Southeast wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Monday
Rain. High near 59. South wind 13 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 90%.
Monday Night
Rain likely. Cloudy, with a low around 32. South wind 11 to 13 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 70%.
Tuesday
Mostly sunny, with a high near 41. West wind 10 to 13 mph.
Tuesday Night
Mostly clear, with a low around 23. West wind 7 to 9 mph.
Wednesday
Mostly sunny, with a high near 38. West wind 6 to 8 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:
4:43 pm EDT Mar 11, 2026
Forecast Valid:
12am EDT Mar 12, 2026-6pm EDT Mar 18, 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