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

51°F

11°C

Humidity 80%
Wind Speed S 5 mph
Barometer 29.98 in (1015.2 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 31 Mar 3:54 am EDT
Extended Forecast for

Charlestown MA

  • Overnight

    Overnight: A chance of showers, mainly after 5am. Mostly cloudy, with a low around 51. Southwest wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm before noon, then a chance of showers between noon and 2pm, then a chance of showers and thunderstorms after 2pm. Patchy fog between 7am and 11am. High near 60. Southwest wind 6 to 10 mph becoming northeast in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 60 °F

    Showers and
    Patchy Fog
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 40. Northeast wind around 7 mph becoming southwest after midnight. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 40 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 65. Southwest wind around 9 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 65 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely, mainly before 2am. Cloudy, with a low around 38. Northeast wind around 7 mph. Chance of precipitation is 70%.

    Low: 38 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers. Cloudy, with a high near 42. Northeast wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    High: 42 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers. Cloudy, with a low around 38. East wind 5 to 7 mph. Chance of precipitation is 40%.

    Low: 38 °F

    Chance
    Showers

  • Friday

    Friday: Cloudy, with a high near 65. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 65 °F

    Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 53. Southwest wind 9 to 11 mph.

    Low: 53 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of showers, mainly after 5am. Mostly cloudy, with a low around 51. Southwest wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Showers and possibly a thunderstorm before noon, then a chance of showers between noon and 2pm, then a chance of showers and thunderstorms after 2pm. Patchy fog between 7am and 11am. High near 60. Southwest wind 6 to 10 mph becoming northeast in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 40. Northeast wind around 7 mph becoming southwest after midnight. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 65. Southwest wind around 9 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Showers likely, mainly before 2am. Cloudy, with a low around 38. Northeast wind around 7 mph. Chance of precipitation is 70%.
Thursday
A chance of showers. Cloudy, with a high near 42. Northeast wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Thursday Night
A chance of showers. Cloudy, with a low around 38. East wind 5 to 7 mph. Chance of precipitation is 40%.
Friday
Cloudy, with a high near 65. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 53. Southwest wind 9 to 11 mph.
Saturday
Mostly cloudy, with a high near 67. West wind 8 to 10 mph becoming east in the afternoon.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 45. East wind around 9 mph. Chance of precipitation is 40%.
Sunday
A chance of rain. Mostly cloudy, with a high near 69. South wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 45. West wind around 11 mph. Chance of precipitation is 50%.
Monday
A chance of rain. Mostly cloudy, with a high near 54. Northwest wind around 10 mph. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Charlestown MA
 42.36°N 71.07°W (Elev. 13 ft)
Last Update:
2:29 am EDT Mar 31, 2026
Forecast Valid:
4am EDT Mar 31, 2026-6pm EDT Apr 6, 2026
 
Forecast Discussion
 
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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