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

82°F

28°C

Humidity 33%
Wind Speed SW 12 mph
Barometer 29.78 in (1008.5 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 21 Jun 2:54 pm EDT
Extended Forecast for

Charlestown MA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 81. West wind around 8 mph.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 61. Light and variable wind.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers after 2pm. Increasing clouds, with a high near 78. Calm wind becoming east 5 to 7 mph in the afternoon. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 78 °F

    Partly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers and thunderstorms before 2am, then showers and possibly a thunderstorm, mainly after 2am. Low around 62. Southeast wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm before 11am, then showers likely. High near 78. Southwest wind 6 to 8 mph becoming northwest in the afternoon. Chance of precipitation is 80%.

    High: 78 °F

    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers before 8pm. Mostly clear, with a low around 63. Light northwest wind. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    Showers then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86. Northwest wind 5 to 7 mph.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 63. Light west wind.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 85. Calm wind becoming southeast 5 to 8 mph in the afternoon.

    High: 85 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 81. West wind around 8 mph.
Tonight
Partly cloudy, with a low around 61. Light and variable wind.
Monday
A chance of showers after 2pm. Increasing clouds, with a high near 78. Calm wind becoming east 5 to 7 mph in the afternoon. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Showers and thunderstorms before 2am, then showers and possibly a thunderstorm, mainly after 2am. Low around 62. Southeast wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Showers and possibly a thunderstorm before 11am, then showers likely. High near 78. Southwest wind 6 to 8 mph becoming northwest in the afternoon. Chance of precipitation is 80%.
Tuesday Night
A chance of showers before 8pm. Mostly clear, with a low around 63. Light northwest wind. Chance of precipitation is 30%.
Wednesday
Sunny, with a high near 86. Northwest wind 5 to 7 mph.
Wednesday Night
Mostly clear, with a low around 63. Light west wind.
Thursday
Sunny, with a high near 85. Calm wind becoming southeast 5 to 8 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 66. South wind 5 to 7 mph.
Friday
A chance of showers. Partly sunny, with a high near 83. South wind 5 to 10 mph. Chance of precipitation is 50%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 67. Southwest wind 5 to 7 mph. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 88. West wind 5 to 8 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Partly cloudy, with a low around 66. West wind around 5 mph. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Charlestown MA
 42.38°N 71.07°W (Elev. 3 ft)
Last Update:
3:22 pm EDT Jun 21, 2026
Forecast Valid:
3pm EDT Jun 21, 2026-6pm EDT Jun 28, 2026
 
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Additional Resources

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Chance of Precipitation