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

29°F

-2°C

Humidity 58%
Wind Speed S 10 mph
Barometer 30.42 in (1030.1 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 18 Mar 10:54 pm EDT
Extended Forecast for

Charlestown MA

  • Tonight

    Tonight: Partly cloudy, with a low around 26. South wind around 5 mph becoming calm after midnight.

    Low: 26 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 44. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 44 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 32. South wind around 6 mph.

    Low: 32 °F

    Partly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 53. Southwest wind 3 to 7 mph.

    High: 53 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Rain likely, mainly after 3am. Mostly cloudy, with a low around 40. South wind around 6 mph. Chance of precipitation is 60%.

    Low: 40 °F

    Rain Likely

  • Saturday

    Saturday: Rain likely, mainly before noon. Mostly cloudy, with a high near 54. Southwest wind 7 to 10 mph. Chance of precipitation is 60%.

    High: 54 °F

    Rain Likely
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 39. Southwest wind around 8 mph.

    Low: 39 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain after 7am. Mostly cloudy, with a high near 57. Southwest wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.

    High: 57 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A chance of rain before midnight. Partly cloudy, with a low around 34. North wind around 9 mph. Chance of precipitation is 30%.

    Low: 34 °F

    Chance Rain
    then Partly
    Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 26. South wind around 5 mph becoming calm after midnight.
Thursday
Mostly sunny, with a high near 44. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 32. South wind around 6 mph.
Friday
Increasing clouds, with a high near 53. Southwest wind 3 to 7 mph.
Friday Night
Rain likely, mainly after 3am. Mostly cloudy, with a low around 40. South wind around 6 mph. Chance of precipitation is 60%.
Saturday
Rain likely, mainly before noon. Mostly cloudy, with a high near 54. Southwest wind 7 to 10 mph. Chance of precipitation is 60%.
Saturday Night
Mostly cloudy, with a low around 39. Southwest wind around 8 mph.
Sunday
A chance of rain after 7am. Mostly cloudy, with a high near 57. Southwest wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Sunday Night
A chance of rain before midnight. Partly cloudy, with a low around 34. North wind around 9 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 41. North wind around 11 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 27. North wind around 8 mph.
Tuesday
Partly sunny, with a high near 42. North wind 7 to 10 mph becoming south in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 29. Southwest wind around 9 mph.
Wednesday
Partly sunny, with a high near 48. West wind 8 to 10 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:
6:12 pm EDT Mar 18, 2026
Forecast Valid:
11pm EDT Mar 18, 2026-6pm EDT Mar 25, 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