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.

Fair

88°F

31°C

Humidity 52%
Wind Speed NW 14 G 23 mph
Barometer 29.89 in (1012.0 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 3 Jul 8:54 am EDT
Extended Forecast for

Dorchester MA

Extreme Heat Warning July 3, 09:12am until July 4, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 3, 09:12am until July 4, 08:00pm

    NOW until 8:00pm Sat

    Extreme Heat Warning

  • Today

    High: 101 °F

    Hot

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly between 11pm and 2am. Partly cloudy, with a low around 78. West wind around 9 mph. Chance of precipitation is 30%.

    Low: 78 °F

    Scattered
    T-storms

  • Independence Day

    Independence Day: Scattered showers and thunderstorms, mainly after 1pm. Mostly sunny and hot, with a high near 96. Northwest wind 9 to 11 mph. Chance of precipitation is 30%.

    High: 96 °F

    Scattered
    T-storms

  • Saturday Night

    Saturday Night: Scattered showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 69. Northwest wind 3 to 7 mph. Chance of precipitation is 30%.

    Low: 69 °F

    Scattered
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 81. North wind 6 to 8 mph becoming east in the afternoon.

    High: 81 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 65. Southeast wind 5 to 8 mph becoming calm in the evening.

    Low: 65 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers after 3pm. Partly sunny, with a high near 79. Light east wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 30%.

    High: 79 °F

    Partly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 65. East wind around 6 mph. Chance of precipitation is 50%.

    Low: 65 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 101. Heat index values as high as 106. West wind 10 to 13 mph.
Tonight
Scattered showers and thunderstorms, mainly between 11pm and 2am. Partly cloudy, with a low around 78. West wind around 9 mph. Chance of precipitation is 30%.
Independence Day
Scattered showers and thunderstorms, mainly after 1pm. Mostly sunny and hot, with a high near 96. Northwest wind 9 to 11 mph. Chance of precipitation is 30%.
Saturday Night
Scattered showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 69. Northwest wind 3 to 7 mph. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 81. North wind 6 to 8 mph becoming east in the afternoon.
Sunday Night
Mostly cloudy, with a low around 65. Southeast wind 5 to 8 mph becoming calm in the evening.
Monday
A chance of showers after 3pm. Partly sunny, with a high near 79. Light east wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 30%.
Monday Night
A chance of showers, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 65. East wind around 6 mph. Chance of precipitation is 50%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 78. East wind 7 to 11 mph. Chance of precipitation is 50%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 62. Northeast wind 5 to 7 mph. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 84. North wind 5 to 8 mph becoming east in the afternoon.
Wednesday Night
Partly cloudy, with a low around 66. South wind around 5 mph becoming light and variable in the evening.
Thursday
Mostly sunny and hot, with a high near 93. South wind 3 to 8 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Dorchester MA
 42.32°N 71.05°W (Elev. 36 ft)
Last Update:
3:11 am EDT Jul 3, 2026
Forecast Valid:
9am EDT Jul 3, 2026-6pm EDT Jul 9, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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