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

63°F

17°C

Humidity 76%
Wind Speed SW 9 mph
Barometer 30.35 in (1027.5 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 16 Sep 7:54 am EDT
Extended Forecast for

Charlestown MA

  • Today

    Today: Mostly sunny, with a high near 78. Southwest wind 5 to 8 mph.

    High: 78 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 61. Southwest wind around 6 mph becoming calm in the evening.

    Low: 61 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers after 2pm. Mostly cloudy, with a high near 78. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 20%.

    High: 78 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, mainly between 9pm and 2am. Mostly cloudy, with a low around 64. South wind 6 to 8 mph becoming southwest after midnight. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 64 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 77. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 77 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 53. North wind 5 to 8 mph.

    Low: 53 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 65. North wind around 7 mph becoming east in the afternoon.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 53. South wind 3 to 5 mph.

    Low: 53 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers. Mostly cloudy, with a high near 66. Southeast wind 5 to 8 mph. Chance of precipitation is 50%.

    High: 66 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 78. Southwest wind 5 to 8 mph.
Tonight
Partly cloudy, with a low around 61. Southwest wind around 6 mph becoming calm in the evening.
Thursday
A slight chance of showers after 2pm. Mostly cloudy, with a high near 78. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
Thursday Night
A chance of showers, mainly between 9pm and 2am. Mostly cloudy, with a low around 64. South wind 6 to 8 mph becoming southwest after midnight. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Mostly sunny, with a high near 77. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 53. North wind 5 to 8 mph.
Saturday
Mostly sunny, with a high near 65. North wind around 7 mph becoming east in the afternoon.
Saturday Night
Mostly cloudy, with a low around 53. South wind 3 to 5 mph.
Sunday
A chance of showers. Mostly cloudy, with a high near 66. Southeast wind 5 to 8 mph. Chance of precipitation is 50%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 55. South wind around 6 mph becoming north after midnight. Chance of precipitation is 50%.
Monday
Mostly cloudy, with a high near 66. Northeast wind 8 to 10 mph.
Monday Night
A chance of showers. Mostly cloudy, with a low around 55. Northeast wind around 7 mph. Chance of precipitation is 30%.
Tuesday
A chance of showers. Partly sunny, with a high near 66. East wind 9 to 13 mph. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Charlestown MA
 42.38°N 71.07°W (Elev. 3 ft)
Last Update:
4:37 am EDT Sep 16, 2026
Forecast Valid:
8am EDT Sep 16, 2026-6pm EDT Sep 22, 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