Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

Fair

69°F

21°C

Humidity 53%
Wind Speed Calm
Barometer 30.16 in (1021.3 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 16 Aug 12:54 am EDT
Extended Forecast for

Charlestown MA

  • Overnight

    Overnight: Mostly clear, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 81. Calm wind becoming southeast 5 to 8 mph in the afternoon.

    High: 81 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers, mainly after 3am.  Increasing clouds, with a low around 67. South wind 7 to 10 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 67 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: Showers likely, mainly between 8am and 2pm.  Patchy fog before 2pm.  Otherwise, cloudy, with a high near 76. Southeast wind around 9 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 76 °F

    Showers
    Likely and
    Patchy Fog

  • Monday Night

    Monday Night: A chance of showers, mainly before 9pm.  Patchy fog between 8pm and 9pm.  Otherwise, mostly cloudy, with a low around 68. Light north wind.  Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    Showers and
    Patchy Fog

  • Tuesday

    Tuesday: Partly sunny, with a high near 79. North wind 5 to 7 mph becoming east in the afternoon.

    High: 79 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

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

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 68. Southwest wind 3 to 5 mph.

    Low: 68 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 60. Calm wind.
Sunday
Mostly sunny, with a high near 81. Calm wind becoming southeast 5 to 8 mph in the afternoon.
Sunday Night
A chance of showers, mainly after 3am. Increasing clouds, with a low around 67. South wind 7 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers likely, mainly between 8am and 2pm. Patchy fog before 2pm. Otherwise, cloudy, with a high near 76. Southeast wind around 9 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
A chance of showers, mainly before 9pm. Patchy fog between 8pm and 9pm. Otherwise, mostly cloudy, with a low around 68. Light north wind. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 79. North wind 5 to 7 mph becoming east in the afternoon.
Tuesday Night
Partly cloudy, with a low around 65. Calm wind.
Wednesday
Sunny, with a high near 85. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 68. Southwest wind 3 to 5 mph.
Thursday
A chance of showers. Partly sunny, with a high near 82. Northwest wind 5 to 7 mph. Chance of precipitation is 50%.
Thursday Night
Partly cloudy, with a low around 62. Light and variable wind.
Friday
Sunny, with a high near 79. Northwest wind 5 to 8 mph becoming east in the afternoon.
Friday Night
Partly cloudy, with a low around 62. Southeast wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 79. Light northeast wind becoming east 5 to 9 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Charlestown MA
 42.38°N 71.07°W (Elev. 3 ft)
1:48 am EDT Aug 16, 2026
1am EDT Aug 16, 2026-6pm EDT Aug 22, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database