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

18°C

65°F

Humidity 36%
Wind Speed N 22 G 37 km/h
Barometer 1019.8 mb (30.12 in)
Dewpoint 3°C (37°F)
Visibility 16 km
Last update 21 May 5:54 am EDT
Extended Forecast for

Boston MA

  • Today

    Today: Mostly cloudy, with a high near 19. North wind around 11 km/h becoming east in the afternoon.

    High: 19 °C

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 8. Calm wind.

    Low: 8 °C

    Decreasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 18. East wind 10 to 14 km/h.

    High: 18 °C

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 10. Calm wind.

    Low: 10 °C

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 18. Light northeast wind becoming east 9 to 14 km/h in the morning.

    High: 18 °C

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Showers likely, mainly after 5am. Cloudy, with a low around 9. East wind 5 to 8 km/h. Chance of precipitation is 60%.

    Low: 9 °C

    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday

    Sunday: Showers. High near 15. East wind 13 to 18 km/h, with gusts as high as 34 km/h. Chance of precipitation is 80%.

    High: 15 °C

    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 11pm. Mostly cloudy, with a low around 10. East wind 11 to 16 km/h. Chance of precipitation is 70%.

    Low: 10 °C

    Showers
    Likely

  • Memorial Day

    Memorial Day: A chance of showers. Mostly cloudy, with a high near 20. Northeast wind around 11 km/h becoming northwest in the afternoon. Chance of precipitation is 40%.

    High: 20 °C

    Chance
    Showers

Detailed Forecast

Today
Mostly cloudy, with a high near 19. North wind around 11 km/h becoming east in the afternoon.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 8. Calm wind.
Friday
Mostly sunny, with a high near 18. East wind 10 to 14 km/h.
Friday Night
Mostly cloudy, with a low around 10. Calm wind.
Saturday
Mostly cloudy, with a high near 18. Light northeast wind becoming east 9 to 14 km/h in the morning.
Saturday Night
Showers likely, mainly after 5am. Cloudy, with a low around 9. East wind 5 to 8 km/h. Chance of precipitation is 60%.
Sunday
Showers. High near 15. East wind 13 to 18 km/h, with gusts as high as 34 km/h. Chance of precipitation is 80%.
Sunday Night
Showers likely, mainly before 11pm. Mostly cloudy, with a low around 10. East wind 11 to 16 km/h. Chance of precipitation is 70%.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 20. Northeast wind around 11 km/h becoming northwest in the afternoon. Chance of precipitation is 40%.
Monday Night
A chance of showers before 10pm. Mostly cloudy, with a low around 12. South wind 5 to 8 km/h becoming west after midnight. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 25. Northwest wind 5 to 11 km/h.
Tuesday Night
Partly cloudy, with a low around 14. West wind around 10 km/h.
Wednesday
Mostly sunny, with a high near 25. Northwest wind 10 to 14 km/h.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Boston MA
 42.36°N 71.07°W (Elev. 13 m)
Last Update:
4:06 am EDT May 21, 2026
Forecast Valid:
6am EDT May 21, 2026-6pm EDT May 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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