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

47°F

8°C

Humidity 80%
Wind Speed S 3 mph
Barometer 30.00 in (1015.8 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 11 Mar 2:54 am EDT
Extended Forecast for

Charlestown MA

  • Overnight

    Overnight: Mostly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain between 8am and 5pm. Mostly cloudy, with a high near 48. Northeast wind around 7 mph. Chance of precipitation is 20%.

    High: 48 °F

    Slight Chance
    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain, with thunderstorms also possible after 11pm. Mostly cloudy, with a temperature rising to around 56 by 2am. South wind 7 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

    Low: 45 °F⇑

    Chance Rain

  • Thursday

    Thursday: Rain, mainly before 4pm. High near 54. Southwest wind 10 to 14 mph becoming west in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Rain

  • Thursday Night

    Thursday Night: A chance of snow, mainly before 7pm. Partly cloudy, with a low around 30. West wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 30 °F

    Chance Snow
    then Mostly
    Clear

  • Friday

    Friday: Mostly sunny, with a high near 46. South wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 46 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of rain after 7pm. Mostly cloudy, with a low around 38. South wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.

    Low: 38 °F

    Chance Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 48. West wind 11 to 17 mph, with gusts as high as 31 mph.

    High: 48 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 41. Calm wind.
Wednesday
A slight chance of rain between 8am and 5pm. Mostly cloudy, with a high near 48. Northeast wind around 7 mph. Chance of precipitation is 20%.
Wednesday Night
A chance of rain, with thunderstorms also possible after 11pm. Mostly cloudy, with a temperature rising to around 56 by 2am. South wind 7 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Thursday
Rain, mainly before 4pm. High near 54. Southwest wind 10 to 14 mph becoming west in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A chance of snow, mainly before 7pm. Partly cloudy, with a low around 30. West wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Friday
Mostly sunny, with a high near 46. South wind 6 to 11 mph, with gusts as high as 21 mph.
Friday Night
A chance of rain after 7pm. Mostly cloudy, with a low around 38. South wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Saturday
Mostly sunny, with a high near 48. West wind 11 to 17 mph, with gusts as high as 31 mph.
Saturday Night
Partly cloudy, 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 47. Light and variable wind becoming southeast 5 to 8 mph in the afternoon.
Sunday Night
Rain likely. Cloudy, with a low around 38. Southeast wind 8 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Monday
Rain. High near 59. South wind 14 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 90%.
Monday Night
Rain likely. Mostly cloudy, with a low around 32. West wind 11 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Tuesday
Mostly sunny, with a high near 42. West wind 11 to 13 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Charlestown MA
 42.38°N 71.07°W (Elev. 3 ft)
Last Update:
2:50 am EDT Mar 11, 2026
Forecast Valid:
3am EDT Mar 11, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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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