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

42°F

6°C

Humidity 73%
Wind Speed S 13 mph
Barometer 30.17 in (1021.6 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 26 Mar 12:54 am EDT
Extended Forecast for

Charlestown MA

  • Overnight

    Overnight: A chance of showers, mainly between 2am and 3am. Cloudy, with a low around 41. South wind around 8 mph. Chance of precipitation is 30%.

    Low: 41 °F

    Chance
    Showers

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 66. Southwest wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 66 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Rain, mainly after 8pm. Patchy fog before 4am, then patchy fog after 5am. Low around 42. Southwest wind 6 to 8 mph becoming northwest after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Rain and
    Patchy Fog

  • Friday

    Friday: A chance of rain, mainly before 10am. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 47. North wind around 9 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 47 °F

    Chance Rain
    and Patchy
    Fog

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27. North wind around 6 mph.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 38. North wind 6 to 9 mph.

    High: 38 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27. Light northwest wind.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 49. West wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 49 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 36. Southwest wind around 7 mph.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of showers, mainly between 2am and 3am. Cloudy, with a low around 41. South wind around 8 mph. Chance of precipitation is 30%.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 66. Southwest wind 10 to 14 mph, with gusts as high as 24 mph.
Thursday Night
Rain, mainly after 8pm. Patchy fog before 4am, then patchy fog after 5am. Low around 42. Southwest wind 6 to 8 mph becoming northwest after midnight. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A chance of rain, mainly before 10am. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 47. North wind around 9 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Partly cloudy, with a low around 27. North wind around 6 mph.
Saturday
Partly sunny, with a high near 38. North wind 6 to 9 mph.
Saturday Night
Partly cloudy, with a low around 27. Light northwest wind.
Sunday
Mostly sunny, with a high near 49. West wind 6 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 36. Southwest wind around 7 mph.
Monday
Mostly cloudy, with a high near 57. Southwest wind 8 to 13 mph, with gusts as high as 24 mph.
Monday Night
Mostly cloudy, with a low around 42. Southwest wind 6 to 9 mph, with gusts as high as 21 mph.
Tuesday
A chance of rain. Partly sunny, with a high near 54. Northwest wind 6 to 8 mph becoming northeast in the afternoon. Chance of precipitation is 30%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 36. East wind around 6 mph. Chance of precipitation is 30%.
Wednesday
A chance of rain. Cloudy, with a high near 48. East wind 7 to 10 mph. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Charlestown MA
 42.38°N 71.07°W (Elev. 3 ft)
Last Update:
12:30 am EDT Mar 26, 2026
Forecast Valid:
1am EDT Mar 26, 2026-6pm EDT Apr 1, 2026
 
Forecast Discussion
 
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Additional Resources

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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