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.

Mostly Cloudy

76°F

24°C

Humidity 82%
Wind Speed SW 12 G 20 mph
Barometer 29.81 in (1009.6 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 19 Jun 8:54 am EDT
Extended Forecast for

Weymouth MA

Heat Advisory June 19, 11:00am until June 19, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Juneteenth

    Juneteenth: Mostly sunny and hot, with a high near 96. Heat index values as high as 104. Southwest wind 6 to 11 mph.

    High: 96 °F

    Hot

  • Tonight

    Tonight: Isolated showers before 11pm. Mostly cloudy, with a low around 67. Southwest wind 10 to 13 mph. Chance of precipitation is 20%.

    Low: 67 °F

    Isolated
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 83. West wind 13 to 16 mph, with gusts as high as 34 mph.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 63. West wind 6 to 13 mph, with gusts as high as 24 mph.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 85. West wind around 6 mph.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 66. South wind around 6 mph. Chance of precipitation is 30%.

    Low: 66 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers before 9am. Partly sunny, with a high near 85. Southwest wind 8 to 10 mph. Chance of precipitation is 30%.

    High: 85 °F

    Chance
    Showers then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 67. Southwest wind around 7 mph.

    Low: 67 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 89. South wind 6 to 8 mph.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

Juneteenth
Mostly sunny and hot, with a high near 96. Heat index values as high as 104. Southwest wind 6 to 11 mph.
Tonight
Isolated showers before 11pm. Mostly cloudy, with a low around 67. Southwest wind 10 to 13 mph. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 83. West wind 13 to 16 mph, with gusts as high as 34 mph.
Friday Night
Mostly clear, with a low around 63. West wind 6 to 13 mph, with gusts as high as 24 mph.
Saturday
Mostly sunny, with a high near 85. West wind around 6 mph.
Saturday Night
A chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 66. South wind around 6 mph. Chance of precipitation is 30%.
Sunday
A chance of showers before 9am. Partly sunny, with a high near 85. Southwest wind 8 to 10 mph. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 67. Southwest wind around 7 mph.
Monday
Mostly sunny, with a high near 89. South wind 6 to 8 mph.
Monday Night
Mostly clear, with a low around 72. Southwest wind around 7 mph.
Tuesday
Sunny and hot, with a high near 96. West wind 6 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 73. Southwest wind around 7 mph.
Wednesday
Mostly sunny, with a high near 86. North wind around 8 mph becoming east 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:
7:14 am EDT Jun 19, 2025
Forecast Valid:
9am EDT Jun 19, 2025-6pm EDT Jun 25, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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