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.

Partly Cloudy

84°F

29°C

Humidity 74%
Wind Speed SE 7 mph
Barometer 30.08 in (1018.5 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 6 Aug 12:54 pm EDT
Extended Forecast for

Winthrop MA

Heat Advisory until August 7, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 7, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 86 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, mostly clear, with a low around 74. Southwest wind 5 to 7 mph.

    Low: 74 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 7am. Otherwise, sunny, with a high near 88. Light and variable wind becoming southeast around 6 mph in the afternoon.

    High: 88 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 74. Southwest wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 74 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 86. Southwest wind 6 to 10 mph. Chance of precipitation is 30%.

    High: 86 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. Southwest wind around 7 mph. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 87. West wind 6 to 11 mph.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 71. West wind 7 to 9 mph.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 86. South wind around 7 mph. Chance of precipitation is 20%.
Tonight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 74. Southwest wind 5 to 7 mph.
Friday
Patchy fog before 7am. Otherwise, sunny, with a high near 88. Light and variable wind becoming southeast around 6 mph in the afternoon.
Friday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 74. Southwest wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 86. Southwest wind 6 to 10 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. Southwest wind around 7 mph. Chance of precipitation is 30%.
Sunday
Sunny, with a high near 87. West wind 6 to 11 mph.
Sunday Night
Mostly clear, with a low around 71. West wind 7 to 9 mph.
Monday
Sunny, with a high near 84. South wind 6 to 13 mph.
Monday Night
A chance of showers between 11pm and midnight. Partly cloudy, with a low around 72. Southwest wind around 9 mph. Chance of precipitation is 30%.
Tuesday
A chance of showers. Partly sunny, with a high near 83. West wind 8 to 14 mph. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 70. West wind 6 to 8 mph. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 78. Northwest wind 5 to 8 mph becoming southeast in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winthrop MA
 42.37°N 70.98°W (Elev. 3 ft)
Last Update:
12:34 pm EDT Aug 6, 2026
Forecast Valid:
1pm EDT Aug 6, 2026-6pm EDT Aug 12, 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