National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

Overcast

75°F

24°C

Humidity 88%
Wind Speed SW 10 mph
Barometer 29.91 in (1012.8 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 19 May 7:54 pm EDT
Extended Forecast for

Weymouth MA

Heat Advisory May 19, 08:29pm until May 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory May 19, 08:29pm until May 20, 08:00pm

    NOW until 8:00pm Wed

    Heat Advisory

  • Tonight

    Low: 69 °F

    Gradual
    Clearing

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 4pm. Mostly sunny and hot, with a high near 91. West wind 8 to 13 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Sunny then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 55. West wind around 8 mph. Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 66. North wind 6 to 8 mph.

    High: 66 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 48. Light and variable wind.

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 67. Light and variable wind becoming east around 6 mph in the morning.

    High: 67 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 49. South wind 5 to 7 mph becoming calm after midnight.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers. Mostly cloudy, with a high near 61. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 40%.

    High: 61 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 69. Southwest wind 7 to 9 mph.
Wednesday
A chance of showers, with thunderstorms also possible after 4pm. Mostly sunny and hot, with a high near 91. West wind 8 to 13 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 55. West wind around 8 mph. Chance of precipitation is 30%.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 66. North wind 6 to 8 mph.
Thursday Night
Partly cloudy, with a low around 48. Light and variable wind.
Friday
Mostly sunny, with a high near 67. Light and variable wind becoming east around 6 mph in the morning.
Friday Night
Mostly cloudy, with a low around 49. South wind 5 to 7 mph becoming calm after midnight.
Saturday
A chance of showers. Mostly cloudy, with a high near 61. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 40%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 47. East wind 3 to 5 mph. Chance of precipitation is 50%.
Sunday
A chance of showers. Mostly cloudy, with a high near 61. East wind 6 to 9 mph. Chance of precipitation is 50%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 49. East wind 3 to 6 mph. Chance of precipitation is 50%.
Memorial Day
A chance of showers. Mostly cloudy, with a high near 66. North wind 5 to 7 mph. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 51. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 71. Calm wind becoming northeast around 6 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Weymouth MA
 42.21°N 70.96°W (Elev. 98 ft)
Last Update:
8:07 pm EDT May 19, 2026
Forecast Valid:
8pm EDT May 19, 2026-6pm EDT May 26, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation