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

45°F

7°C

Humidity 86%
Wind Speed S 17 G 25 mph
Barometer 30.09 in (1018.7 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 9 Jan 4:54 pm EST
Extended Forecast for

Charlestown MA

  • This Afternoon

    This Afternoon: A chance of rain. Mostly cloudy, with a high near 51. South wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    High: 51 °F

    Chance Rain

  • Tonight

    Tonight: A chance of rain before 10pm. Patchy fog between 8pm and midnight. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 38. South wind 8 to 10 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Chance Rain
    and Patchy
    Fog then
    Mostly Cloudy

  • Saturday

    Saturday: Increasing clouds, with a high near 45. West wind around 6 mph becoming light and variable in the afternoon.

    High: 45 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Rain, mainly after 7pm. Low around 39. East wind 3 to 6 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 39 °F

    Rain

  • Sunday

    Sunday: Rain likely, mainly before 10am. Mostly cloudy, with a high near 43. North wind 5 to 9 mph becoming west in the afternoon. Chance of precipitation is 70%.

    High: 43 °F

    Rain Likely
    then Chance
    Rain

  • Sunday Night

    Sunday Night: A slight chance of snow showers between 10pm and 2am. Partly cloudy, with a low around 26. Breezy, with a west wind 17 to 23 mph, with gusts as high as 44 mph. Chance of precipitation is 20%.

    Low: 26 °F

    Slight Chance
    Snow Showers
    and Breezy

  • Monday

    Monday: Mostly sunny, with a high near 38. West wind 11 to 16 mph, with gusts as high as 31 mph.

    High: 38 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30. Southwest wind 5 to 8 mph.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 43. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 43 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of rain. Mostly cloudy, with a high near 51. South wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Tonight
A chance of rain before 10pm. Patchy fog between 8pm and midnight. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 38. South wind 8 to 10 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Increasing clouds, with a high near 45. West wind around 6 mph becoming light and variable in the afternoon.
Saturday Night
Rain, mainly after 7pm. Low around 39. East wind 3 to 6 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain likely, mainly before 10am. Mostly cloudy, with a high near 43. North wind 5 to 9 mph becoming west in the afternoon. Chance of precipitation is 70%.
Sunday Night
A slight chance of snow showers between 10pm and 2am. Partly cloudy, with a low around 26. Breezy, with a west wind 17 to 23 mph, with gusts as high as 44 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 38. West wind 11 to 16 mph, with gusts as high as 31 mph.
Monday Night
Mostly cloudy, with a low around 30. Southwest wind 5 to 8 mph.
Tuesday
Mostly sunny, with a high near 43. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 34. Southwest wind around 8 mph.
Wednesday
Cloudy, with a high near 47. Southwest wind 8 to 10 mph, with gusts as high as 22 mph.
Wednesday Night
Mostly cloudy, with a low around 30. Southwest wind around 6 mph.
Thursday
Mostly cloudy, with a high near 37. Northwest wind 6 to 8 mph.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 21. North wind around 6 mph. Chance of precipitation is 40%.
Friday
A chance of snow. Mostly cloudy, with a high near 29.
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ABOUT THIS FORECAST

 
Point Forecast:
Charlestown MA
 42.38°N 71.07°W (Elev. 3 ft)
Last Update:
2:33 pm EST Jan 9, 2026
Forecast Valid:
5pm EST Jan 9, 2026-6pm EST Jan 16, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation