Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

Fair

72°F

22°C

Humidity 82%
Wind Speed SW 7 mph
Barometer 29.94 in (1013.8 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 13 Aug 1:54 am EDT
Extended Forecast for

Charlestown MA

  • Overnight

    Overnight: Partly cloudy, with a low around 70. Southwest wind around 5 mph.

    Low: 70 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny and hot, with a high near 93. Heat index values as high as 96. South wind 5 to 9 mph.

    High: 93 °F

    Hot

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am.  Mostly cloudy, with a low around 73. Southwest wind 6 to 8 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms before 10am, then showers likely between 10am and 11am, then showers likely and possibly a thunderstorm after 11am.  Mostly cloudy, with a high near 87. Southwest wind around 7 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 87 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am.  Partly cloudy, with a low around 69. Calm wind becoming north around 5 mph after midnight.  Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 80. North wind 7 to 9 mph.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. Light and variable wind.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 85. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 67. Southwest wind around 6 mph.

    Low: 67 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 70. Southwest wind around 5 mph.
Wednesday
Sunny and hot, with a high near 93. Heat index values as high as 96. South wind 5 to 9 mph.
Wednesday Night
A chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 73. Southwest wind 6 to 8 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms before 10am, then showers likely between 10am and 11am, then showers likely and possibly a thunderstorm after 11am. Mostly cloudy, with a high near 87. Southwest wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 69. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 40%.
Friday
Sunny, with a high near 80. North wind 7 to 9 mph.
Friday Night
Mostly clear, with a low around 62. Light and variable wind.
Saturday
Sunny, with a high near 85. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 67. Southwest wind around 6 mph.
Sunday
Sunny and hot, with a high near 91. Southwest wind 6 to 8 mph.
Sunday Night
Partly cloudy, with a low around 69. Southwest wind around 6 mph becoming northwest after midnight.
Monday
Mostly sunny, with a high near 80. North wind 7 to 9 mph becoming east in the afternoon.
Monday Night
Partly cloudy, with a low around 63. Southeast wind around 6 mph becoming west after midnight.
Tuesday
Mostly sunny, with a high near 75. North wind 6 to 9 mph becoming east in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Charlestown MA
 42.38°N 71.07°W (Elev. 3 ft)
8:03 pm EDT Aug 12, 2025
2am EDT Aug 13, 2025-6pm EDT Aug 19, 2025
 
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