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

56°F

13°C

Humidity 81%
Wind Speed E 3 mph
Barometer 29.93 in (1013.6 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 17 Apr 3:54 pm EDT
Extended Forecast for

Charlestown MA

  • This Afternoon

    This Afternoon: A slight chance of rain before 5pm. Partly sunny, with a steady temperature around 54. Northeast wind around 8 mph. Chance of precipitation is 20%.

    High: 54 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: Patchy fog before 7pm, then patchy fog after midnight. Otherwise, partly cloudy, with a low around 48. Light north wind.

    Low: 48 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 10am. Otherwise, cloudy, with a high near 53. East wind 6 to 10 mph.

    High: 53 °F

    Patchy Fog
    then Cloudy

  • Saturday Night

    Saturday Night: A chance of showers between 11pm and 3am, then a slight chance of rain after 3am. Patchy fog after 11pm. Otherwise, cloudy, with a low around 45. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 45 °F

    Chance
    Showers and
    Patchy Fog

  • Sunday

    Sunday: Rain before 4pm, then rain and snow likely between 4pm and 5pm, then rain after 5pm. Some thunder is also possible. Patchy fog before 1pm, then patchy fog after 3pm. High near 57. South wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 57 °F

    Showers
    Likely and
    Patchy Fog
    then
    Rain/Snow and
    Patchy Fog

  • Sunday Night

    Sunday Night: Rain, mainly before 8pm. Low around 37. West wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    Low: 37 °F

    Rain then
    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 46. West wind 7 to 9 mph.

    High: 46 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34. North wind around 7 mph.

    Low: 34 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 52. North wind around 7 mph becoming southeast in the afternoon.

    High: 52 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of rain before 5pm. Partly sunny, with a steady temperature around 54. Northeast wind around 8 mph. Chance of precipitation is 20%.
Tonight
Patchy fog before 7pm, then patchy fog after midnight. Otherwise, partly cloudy, with a low around 48. Light north wind.
Saturday
Patchy fog before 10am. Otherwise, cloudy, with a high near 53. East wind 6 to 10 mph.
Saturday Night
A chance of showers between 11pm and 3am, then a slight chance of rain after 3am. Patchy fog after 11pm. Otherwise, cloudy, with a low around 45. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
Rain before 4pm, then rain and snow likely between 4pm and 5pm, then rain after 5pm. Some thunder is also possible. Patchy fog before 1pm, then patchy fog after 3pm. High near 57. South wind 5 to 10 mph becoming west in the afternoon. Chance of precipitation is 90%. Little or no snow accumulation expected.
Sunday Night
Rain, mainly before 8pm. Low around 37. West wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Monday
Mostly sunny, with a high near 46. West wind 7 to 9 mph.
Monday Night
Partly cloudy, with a low around 34. North wind around 7 mph.
Tuesday
Sunny, with a high near 52. North wind around 7 mph becoming southeast in the afternoon.
Tuesday Night
Partly cloudy, with a low around 40. Southwest wind around 9 mph.
Wednesday
Partly sunny, with a high near 61. West wind around 9 mph.
Wednesday Night
Partly cloudy, with a low around 41. Northwest wind around 7 mph.
Thursday
Mostly sunny, with a high near 61. Northwest wind 6 to 8 mph.
Thursday Night
Partly cloudy, with a low around 44. Northwest wind around 7 mph.
Friday
Mostly sunny, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Charlestown MA
 42.36°N 71.07°W (Elev. 13 ft)
Last Update:
4:24 pm EDT Apr 17, 2026
Forecast Valid:
4pm EDT Apr 17, 2026-6pm EDT Apr 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation