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

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

Fog/Mist

71°F

22°C

Humidity 96%
Wind Speed SE 6 mph
Barometer 29.88 in (1011.9 mb)
Dewpoint 70°F (21°C)
Visibility 3.00 mi
Last update 3 Aug 12:54 am EDT
Extended Forecast for

Dorchester MA

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm before 4am, then a chance of showers and thunderstorms between 4am and 5am, then showers and possibly a thunderstorm after 5am. Some of the storms could produce heavy rainfall. Patchy fog after 2am. Low around 71. South wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Heavy Rain
    and Patchy
    Fog

  • Monday

    Monday: Showers and thunderstorms before 4pm, then a chance of showers between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. Patchy fog before 5pm. High near 79. South wind 11 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 79 °F

    Heavy Rain
    and Patchy
    Fog

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 11pm, then a slight chance of showers between 11pm and 1am. Some of the storms could produce heavy rainfall. Patchy fog before 10pm. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 65. Southwest wind 6 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Heavy Rain
    and Patchy
    Fog then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: Sunny, with a high near 83. West wind 5 to 8 mph.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 65. Southwest wind 3 to 5 mph.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 83. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 83 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 69. Southwest wind around 6 mph.

    Low: 69 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 88. Southwest wind 6 to 9 mph.

    High: 88 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 73. Southwest wind around 7 mph.

    Low: 73 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm before 4am, then a chance of showers and thunderstorms between 4am and 5am, then showers and possibly a thunderstorm after 5am. Some of the storms could produce heavy rainfall. Patchy fog after 2am. Low around 71. South wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and thunderstorms before 4pm, then a chance of showers between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. Patchy fog before 5pm. High near 79. South wind 11 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Monday Night
Showers likely and possibly a thunderstorm before 11pm, then a slight chance of showers between 11pm and 1am. Some of the storms could produce heavy rainfall. Patchy fog before 10pm. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 65. Southwest wind 6 to 10 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Sunny, with a high near 83. West wind 5 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 65. Southwest wind 3 to 5 mph.
Wednesday
Mostly sunny, with a high near 83. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 69. Southwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 88. Southwest wind 6 to 9 mph.
Thursday Night
Partly cloudy, with a low around 73. Southwest wind around 7 mph.
Friday
A chance of showers after 5pm. Mostly sunny and hot, with a high near 90. Southwest wind 6 to 8 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers. Partly cloudy, with a low around 73. Southwest wind 5 to 7 mph. Chance of precipitation is 30%.
Saturday
A chance of showers. Mostly sunny, with a high near 88. South wind 5 to 8 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Partly cloudy, with a low around 72. Southwest wind around 6 mph. Chance of precipitation is 30%.
Sunday
A chance of showers. Mostly sunny, with a high near 87. Southwest wind 6 to 10 mph. Chance of precipitation is 30%.
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:
5:37 pm EDT Aug 2, 2026
Forecast Valid:
1am EDT Aug 3, 2026-6pm EDT Aug 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