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.

Mostly Cloudy

74°F

23°C

Humidity 79%
Wind Speed SW 8 G 17 mph
Barometer 30.00 in (1015.7 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 30 Jun 10:54 pm EDT
Extended Forecast for

Cambridge MA

Extreme Heat Warning July 1, 10:00am until July 4, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Tonight

    Tonight: Isolated showers and thunderstorms after 3am. Mostly cloudy, with a low around 71. Southwest wind around 9 mph. Chance of precipitation is 20%.

    Low: 71 °F

    Isolated
    T-storms

  • Wednesday

    Wednesday: Isolated showers and thunderstorms before 9am. Mostly sunny and hot, with a high near 97. Heat index values as high as 105. Southwest wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    High: 97 °F

    Isolated
    T-storms then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 77. Southwest wind 9 to 11 mph.

    Low: 77 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny and hot, with a high near 105. Heat index values as high as 113. West wind 9 to 11 mph, with gusts as high as 22 mph.

    High: 105 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 79. West wind 8 to 10 mph.

    Low: 79 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 104. West wind 8 to 10 mph, with gusts as high as 20 mph.

    High: 104 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 75. West wind 5 to 10 mph.

    Low: 75 °F

    Mostly Clear

  • Independence Day

    Independence Day: A chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 97. West wind 5 to 9 mph. Chance of precipitation is 30%.

    High: 97 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 10pm. Partly cloudy, with a low around 75. West wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Isolated showers and thunderstorms after 3am. Mostly cloudy, with a low around 71. Southwest wind around 9 mph. Chance of precipitation is 20%.
Wednesday
Isolated showers and thunderstorms before 9am. Mostly sunny and hot, with a high near 97. Heat index values as high as 105. Southwest wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 77. Southwest wind 9 to 11 mph.
Thursday
Sunny and hot, with a high near 105. Heat index values as high as 113. West wind 9 to 11 mph, with gusts as high as 22 mph.
Thursday Night
Mostly clear, with a low around 79. West wind 8 to 10 mph.
Friday
Sunny and hot, with a high near 104. West wind 8 to 10 mph, with gusts as high as 20 mph.
Friday Night
Mostly clear, with a low around 75. West wind 5 to 10 mph.
Independence Day
A chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 97. West wind 5 to 9 mph. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 10pm. Partly cloudy, with a low around 75. West wind 3 to 5 mph. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 89. Light and variable wind becoming east 5 to 8 mph in the morning.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 68. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Monday
A chance of showers. Partly sunny, with a high near 84. Calm wind becoming east 5 to 8 mph in the afternoon. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 67. Southeast wind around 5 mph becoming light and variable in the evening.
Tuesday
Mostly sunny, with a high near 87. Light and variable wind becoming east 5 to 8 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cambridge MA
 42.37°N 71.13°W (Elev. 3 ft)
Last Update:
10:27 pm EDT Jun 30, 2026
Forecast Valid:
11pm EDT Jun 30, 2026-6pm EDT Jul 7, 2026
 
Forecast Discussion
 
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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