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.

A Few Clouds

73°F

23°C

Humidity 69%
Wind Speed SW 15 mph
Barometer 29.94 in (1013.7 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 1 Jul 2:54 am EDT
Extended Forecast for

Weymouth MA

Extreme Heat Warning July 1, 10:00am until July 4, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Overnight

    Overnight: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Southwest wind around 10 mph. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, mainly after 10am. Partly sunny and hot, with a high near 94. Heat index values as high as 100. Southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    High: 94 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, mainly after 10pm. Partly cloudy, with a low around 74. Southwest wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 9am. Mostly sunny and hot, with a high near 100. Heat index values as high as 106. West wind around 10 mph. Chance of precipitation is 20%.

    High: 100 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 77. Southwest wind 8 to 10 mph.

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 98. West wind around 9 mph.

    High: 98 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 77. West wind 5 to 10 mph.

    Low: 77 °F

    Mostly Clear

  • Independence Day

    Independence Day: A chance of showers and thunderstorms after 5pm. Sunny and hot, with a high near 93. West wind 5 to 8 mph. Chance of precipitation is 30%.

    High: 93 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. Light and variable wind. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Southwest wind around 10 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms, mainly after 10am. Partly sunny and hot, with a high near 94. Heat index values as high as 100. Southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms, mainly after 10pm. Partly cloudy, with a low around 74. Southwest wind 10 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Thursday
A slight chance of showers and thunderstorms before 9am. Mostly sunny and hot, with a high near 100. Heat index values as high as 106. West wind around 10 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 77. Southwest wind 8 to 10 mph.
Friday
Sunny and hot, with a high near 98. West wind around 9 mph.
Friday Night
Mostly clear, with a low around 77. West wind 5 to 10 mph.
Independence Day
A chance of showers and thunderstorms after 5pm. Sunny and hot, with a high near 93. West wind 5 to 8 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. Light and variable wind. Chance of precipitation is 30%.
Sunday
A chance of showers after 3pm. Partly sunny, with a high near 85. Light and variable wind becoming northeast 5 to 7 mph in the morning. Chance of precipitation is 30%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 66. Light south wind. Chance of precipitation is 60%.
Monday
Showers likely. Partly sunny, with a high near 79. East wind 3 to 8 mph. Chance of precipitation is 60%.
Monday Night
A chance of showers. Partly cloudy, with a low around 65. East wind 3 to 5 mph. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 83. Northeast wind 5 to 8 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Weymouth MA
 42.21°N 70.93°W (Elev. 92 ft)
Last Update:
1:20 am EDT Jul 1, 2026
Forecast Valid:
3am EDT Jul 1, 2026-6pm EDT Jul 7, 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