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.

Overcast

69°F

21°C

Humidity 78%
Wind Speed E 9 mph
Barometer 30.17 in (1021.5 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 2 Sep 9:54 am EDT
Extended Forecast for

Charlestown MA

  • Today

    Today: Partly sunny, with a high near 72. East wind around 9 mph.

    High: 72 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 63. Southeast wind 3 to 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Mostly Cloudy
    then Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm, mainly before 10am, then a chance of showers and thunderstorms after 10am. Patchy fog before 1pm. High near 78. South wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Showers and
    Patchy Fog
    then Chance
    T-storms and
    Patchy Fog

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 65. Light northwest wind.

    Low: 65 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 81. Northwest wind 5 to 8 mph.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 63. Northwest wind around 6 mph.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 72. Northeast wind 7 to 10 mph.

    High: 72 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 59. Northeast wind around 6 mph.

    Low: 59 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 70. Northeast wind 8 to 10 mph.

    High: 70 °F

    Sunny

Detailed Forecast

Today
Partly sunny, with a high near 72. East wind around 9 mph.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 63. Southeast wind 3 to 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and possibly a thunderstorm, mainly before 10am, then a chance of showers and thunderstorms after 10am. Patchy fog before 1pm. High near 78. South wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Partly cloudy, with a low around 65. Light northwest wind.
Friday
Mostly sunny, with a high near 81. Northwest wind 5 to 8 mph.
Friday Night
Mostly clear, with a low around 63. Northwest wind around 6 mph.
Saturday
Mostly sunny, with a high near 72. Northeast wind 7 to 10 mph.
Saturday Night
Partly cloudy, with a low around 59. Northeast wind around 6 mph.
Sunday
Sunny, with a high near 70. Northeast wind 8 to 10 mph.
Sunday Night
Mostly clear, with a low around 57. Light and variable wind.
Labor Day
Sunny, with a high near 75. Northwest wind around 6 mph becoming east in the afternoon.
Monday Night
Partly cloudy, with a low around 61. Southwest wind around 5 mph.
Tuesday
Mostly sunny, with a high near 77. Southwest wind 5 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Charlestown MA
 42.38°N 71.07°W (Elev. 3 ft)
Last Update:
7:41 am EDT Sep 2, 2026
Forecast Valid:
10am EDT Sep 2, 2026-6pm EDT Sep 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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