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

43°F

6°C

Humidity 86%
Wind Speed E 10 mph
Barometer 29.90 in (1012.5 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 11 Mar 3:54 pm EDT
Extended Forecast for

Charlestown MA

  • Tonight

    Tonight: A slight chance of showers before 8pm, then a chance of showers after 11pm. Patchy fog before 10pm, then patchy fog after 3am. Otherwise, mostly cloudy, with a temperature rising to around 55 by 4am. East wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 50%.

    Low: 45 °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

Tonight
A slight chance of showers before 8pm, then a chance of showers after 11pm. Patchy fog before 10pm, then patchy fog after 3am. Otherwise, mostly cloudy, with a temperature rising to around 55 by 4am. East wind 6 to 10 mph becoming southwest after midnight. Winds could gust 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 22. West wind 7 to 9 mph.
Wednesday
Mostly sunny, with a high near 37. West wind 7 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Charlestown MA
 42.38°N 71.07°W (Elev. 3 ft)
Last Update:
3:06 pm EDT Mar 11, 2026
Forecast Valid:
4pm EDT Mar 11, 2026-6pm EDT Mar 18, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation