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 88%
Wind Speed SW 9 mph
Barometer 30.07 in (1018.2 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 15 Jul 7:54 am EDT
Extended Forecast for

Weymouth MA

Heat Advisory July 15, 11:00am until July 17, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A slight chance of showers before 9am. Mostly cloudy, then gradually becoming sunny and hot, with a high near 90. Heat index values as high as 95. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.

    High: 90 °F

    Slight Chance
    Showers then
    Sunny

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, mostly clear, with a low around 71. Southwest wind 5 to 7 mph.

    Low: 71 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 92. Heat index values as high as 100. South wind 5 to 8 mph.

    High: 92 °F

    Hot

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 74. Southwest wind 6 to 8 mph. Chance of precipitation is 20%.

    Low: 74 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms. Partly sunny and hot, with a high near 90. Southwest wind 7 to 11 mph. Chance of precipitation is 40%.

    High: 90 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 9pm. Partly cloudy, with a low around 76. Southwest wind around 7 mph. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 89. West wind 6 to 8 mph. Chance of precipitation is 30%.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 66. North wind 3 to 5 mph.

    Low: 66 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 82. North wind 5 to 7 mph becoming east in the afternoon.

    High: 82 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers before 9am. Mostly cloudy, then gradually becoming sunny and hot, with a high near 90. Heat index values as high as 95. Southwest wind 3 to 6 mph. Chance of precipitation is 20%.
Tonight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 71. Southwest wind 5 to 7 mph.
Wednesday
Mostly sunny and hot, with a high near 92. Heat index values as high as 100. South wind 5 to 8 mph.
Wednesday Night
A slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 74. Southwest wind 6 to 8 mph. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms. Partly sunny and hot, with a high near 90. Southwest wind 7 to 11 mph. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 9pm. Partly cloudy, with a low around 76. Southwest wind around 7 mph. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 89. West wind 6 to 8 mph. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 66. North wind 3 to 5 mph.
Saturday
Sunny, with a high near 82. North wind 5 to 7 mph becoming east in the afternoon.
Saturday Night
Partly cloudy, with a low around 66. Southwest wind 3 to 5 mph.
Sunday
A chance of showers. Partly sunny, with a high near 84. Light southwest wind becoming south 5 to 9 mph in the morning. Chance of precipitation is 30%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 68. South wind around 6 mph. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 82. West wind 6 to 8 mph becoming north in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Weymouth MA
 42.21°N 70.93°W (Elev. 92 ft)
Last Update:
7:45 am EDT Jul 15, 2025
Forecast Valid:
8am EDT Jul 15, 2025-6pm EDT Jul 21, 2025
 
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