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.

Fair

39°F

4°C

Humidity 67%
Wind Speed W 13 G 22 mph
Barometer 30.03 in (1016.8 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 20 Apr 2:54 am EDT
Extended Forecast for

Charlestown MA

  • Overnight

    Overnight: Clear, with a low around 36. West wind around 8 mph.

    Low: 36 °F

    Clear

  • Monday

    Monday: Increasing clouds, with a high near 53. West wind 8 to 11 mph.

    High: 53 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34. North wind 7 to 10 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 50. North wind around 6 mph becoming east in the afternoon.

    High: 50 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 38. South wind around 6 mph.

    Low: 38 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers before 2pm. Mostly cloudy, with a high near 51. South wind 6 to 8 mph. Chance of precipitation is 20%.

    High: 51 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 41. South wind around 6 mph becoming calm in the evening.

    Low: 41 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 59. Northwest wind 3 to 8 mph.

    High: 59 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. North wind around 6 mph becoming northwest after midnight.

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 36. West wind around 8 mph.
Monday
Increasing clouds, with a high near 53. West wind 8 to 11 mph.
Monday Night
Mostly cloudy, with a low around 34. North wind 7 to 10 mph.
Tuesday
Mostly sunny, with a high near 50. North wind around 6 mph becoming east in the afternoon.
Tuesday Night
Partly cloudy, with a low around 38. South wind around 6 mph.
Wednesday
A slight chance of showers before 2pm. Mostly cloudy, with a high near 51. South wind 6 to 8 mph. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 41. South wind around 6 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 59. Northwest wind 3 to 8 mph.
Thursday Night
Partly cloudy, with a low around 42. North wind around 6 mph becoming northwest after midnight.
Friday
Mostly sunny, with a high near 58. Northwest wind around 7 mph becoming northeast in the afternoon.
Friday Night
Partly cloudy, with a low around 41. East wind around 6 mph becoming north after midnight.
Saturday
Mostly sunny, with a high near 56. North wind 5 to 8 mph becoming east in the afternoon.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 41. Southeast wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 58. East wind 5 to 8 mph. Chance of precipitation is 30%.
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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:
2:29 am EDT Apr 20, 2026
Forecast Valid:
3am EDT Apr 20, 2026-6pm EDT Apr 26, 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