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

73°F

23°C

Humidity 94%
Wind Speed S 5 mph
Barometer 30.03 in (1016.8 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 16 Jul 3:54 am EDT
Extended Forecast for

Boston, Logan International Airport MA

Heat Advisory July 16, 04:01am until July 17, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 16, 04:01am until July 17, 07:00pm

    NOW until 7:00pm Thu

    Heat Advisory

  • Today

    High: 91 °F

    Hot

  • Tonight

    Tonight: Increasing clouds, with a low around 75. Southwest wind around 7 mph.

    Low: 75 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 89. Southwest wind 6 to 11 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, mainly before 9pm. Partly cloudy, with a low around 76. Southwest wind around 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 76 °F

    Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 84. Northwest wind 8 to 10 mph.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 64. North wind 3 to 6 mph.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 81. Light and variable wind becoming east 5 to 8 mph in the morning.

    High: 81 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 67. Southwest wind around 6 mph.

    Low: 67 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny and hot, with a high near 91. Heat index values as high as 96. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Tonight
Increasing clouds, with a low around 75. Southwest wind around 7 mph.
Thursday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 89. Southwest wind 6 to 11 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers, mainly before 9pm. Partly cloudy, with a low around 76. Southwest wind around 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Mostly sunny, with a high near 84. Northwest wind 8 to 10 mph.
Friday Night
Mostly clear, with a low around 64. North wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 81. Light and variable wind becoming east 5 to 8 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 67. Southwest wind around 6 mph.
Sunday
A chance of showers. Partly sunny, with a high near 81. Southwest wind 6 to 8 mph. Chance of precipitation is 50%.
Sunday Night
A chance of showers before 11pm. Partly cloudy, with a low around 66. South wind around 6 mph becoming northwest after midnight. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 79. North wind 6 to 8 mph becoming east in the afternoon.
Monday Night
Partly cloudy, with a low around 64. East wind around 6 mph becoming light and variable in the evening.
Tuesday
Mostly sunny, with a high near 80. Northeast wind 5 to 9 mph becoming east in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Boston, Logan International Airport MA
 42.38°N 71.04°W (Elev. 49 ft)
Last Update:
1:31 am EDT Jul 16, 2025
Forecast Valid:
4am EDT Jul 16, 2025-6pm EDT Jul 22, 2025
 
Forecast Discussion
 
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Additional Resources

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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