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

94°F

34°C

Humidity 40%
Wind Speed W 9 mph
Barometer 29.91 in (1012.9 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index97°F (36°C)
Last update 2 Jul 11:54 am EDT
Extended Forecast for

Boston, Logan International Airport MA

Extreme Heat Warning July 2, 12:34pm until July 4, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 2, 12:34pm until July 4, 08:00pm

    NOW until 8:00pm Sat

    Extreme Heat Warning

  • This Afternoon

    High: 101 °F

    Isolated
    T-storms

  • Tonight

    Tonight: Isolated showers and thunderstorms. Partly cloudy, with a low around 80. West wind around 10 mph. Chance of precipitation is 20%.

    Low: 80 °F

    Isolated
    T-storms

  • Friday

    Friday: Isolated showers and thunderstorms. Mostly sunny and hot, with a high near 100. Heat index values as high as 105. West wind 10 to 14 mph. Chance of precipitation is 20%.

    High: 100 °F

    Isolated
    T-storms

  • Friday Night

    Friday Night: Scattered showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 81. West wind around 9 mph. Chance of precipitation is 30%.

    Low: 81 °F

    Scattered
    T-storms

  • Independence Day

    Independence Day: Scattered showers and thunderstorms, mainly after 9am. Partly sunny and hot, with a high near 96. Northwest wind around 11 mph. Chance of precipitation is 50%.

    High: 96 °F

    Scattered
    T-storms

  • Saturday Night

    Saturday Night: Scattered showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 75. Northwest wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 75 °F

    Scattered
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 80. Light and variable wind becoming east 5 to 9 mph in the morning.

    High: 80 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers after 2am. Mostly cloudy, with a low around 67. Southeast wind 3 to 6 mph. Chance of precipitation is 30%.

    Low: 67 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

This Afternoon
Isolated showers between 1pm and 2pm, then isolated showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 101. Heat index values as high as 108. Southwest wind 11 to 14 mph. Chance of precipitation is 20%.
Tonight
Isolated showers and thunderstorms. Partly cloudy, with a low around 80. West wind around 10 mph. Chance of precipitation is 20%.
Friday
Isolated showers and thunderstorms. Mostly sunny and hot, with a high near 100. Heat index values as high as 105. West wind 10 to 14 mph. Chance of precipitation is 20%.
Friday Night
Scattered showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 81. West wind around 9 mph. Chance of precipitation is 30%.
Independence Day
Scattered showers and thunderstorms, mainly after 9am. Partly sunny and hot, with a high near 96. Northwest wind around 11 mph. Chance of precipitation is 50%.
Saturday Night
Scattered showers and thunderstorms, mainly before 10pm. Partly cloudy, with a low around 75. Northwest wind 3 to 5 mph. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 80. Light and variable wind becoming east 5 to 9 mph in the morning.
Sunday Night
A chance of showers after 2am. Mostly cloudy, with a low around 67. Southeast wind 3 to 6 mph. Chance of precipitation is 30%.
Monday
A chance of showers. Partly sunny, with a high near 74. East wind 5 to 10 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 63. East wind 5 to 7 mph. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 76. East wind 6 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 64. East wind 5 to 7 mph becoming light and variable after midnight.
Wednesday
Mostly sunny, with a high near 77. Light and variable wind becoming east 5 to 9 mph in the morning.
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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:
5:16 am EDT Jul 2, 2026
Forecast Valid:
12pm EDT Jul 2, 2026-6pm EDT Jul 8, 2026
 
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