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

Tropical Storm Isaias to Impact the Eastern U.S. Early This Week

Tropical Storm Isaias will deliver heavy rainfall, flash and urban flooding, high winds, dangerous storm surge, coastal flooding, life-threatening surf, rip currents, and severe thunderstorms with tornadoes to portions of the Eastern U.S. through early this week. Isaias is expected to track from just offshore of northeastern Florida toward coastal South and North Carolina on Monday. Read More >

Hazardous Weather Conditions

Current conditions at

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

Mostly Cloudy

84°F

29°C

Humidity 55%
Wind Speed SW 17 mph
Barometer 29.91 in (1012.7 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 3 Aug 8:54 am EDT
Extended Forecast for

Cambridge MA

Tropical Storm Watch until further notice
Click here for hazard details and duration
Tropical Storm Watch until further notice
  •  
    Tropical Storm Watch until further notice

    NOW until further notice

    Tropical Storm Watch

  • Today

    Today: Mostly sunny, with a high near 93. West wind 11 to 15 mph.

    Mostly Sunny

    High: 93 °F

  • Tonight

    Tonight: A slight chance of showers after 2am. Partly cloudy, with a low around 74. West wind 5 to 9 mph becoming light southwest after midnight. Chance of precipitation is 20%.

    Mostly Clear
    then Slight
    Chance
    Showers

    Low: 74 °F

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 4pm. Cloudy, with a high near 85. South wind 5 to 9 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.

    Chance
    Showers

    High: 85 °F

  • Tuesday
    Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 72. Windy, with a south wind 15 to 20 mph increasing to 25 to 30 mph. Winds could gust as high as 41 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    T-storms and
    Windy

    Low: 72 °F

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms, mainly between 8am and 4pm. Partly sunny, with a high near 88. Southwest wind 10 to 15 mph. Chance of precipitation is 60%.

    Showers
    Likely

    High: 88 °F

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 67. West wind 5 to 8 mph.

    Partly Cloudy

    Low: 67 °F

  • Thursday

    Thursday: Sunny, with a high near 84. Northwest wind around 6 mph.

    Sunny

    High: 84 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 66. West wind around 5 mph becoming calm in the evening.

    Mostly Clear

    Low: 66 °F

Detailed Forecast

Today
Mostly sunny, with a high near 93. West wind 11 to 15 mph.
Tonight
A slight chance of showers after 2am. Partly cloudy, with a low around 74. West wind 5 to 9 mph becoming light southwest after midnight. Chance of precipitation is 20%.
Tuesday
A chance of showers, with thunderstorms also possible after 4pm. Cloudy, with a high near 85. South wind 5 to 9 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm. Low around 72. Windy, with a south wind 15 to 20 mph increasing to 25 to 30 mph. Winds could gust as high as 41 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Wednesday
Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms, mainly between 8am and 4pm. Partly sunny, with a high near 88. Southwest wind 10 to 15 mph. Chance of precipitation is 60%.
Wednesday Night
Partly cloudy, with a low around 67. West wind 5 to 8 mph.
Thursday
Sunny, with a high near 84. Northwest wind around 6 mph.
Thursday Night
Mostly clear, with a low around 66. West wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 84. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 68. Southeast wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 86. Calm wind becoming east around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 68. Southeast wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 88. Light and variable wind becoming northeast around 5 mph in the afternoon.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Cambridge MA
 42.37°N 71.13°W (Elev. 3 ft)
Last Update:
5:17 am EDT Aug 3, 2020
Forecast Valid:
9am EDT Aug 3, 2020-6pm EDT Aug 9, 2020
 
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