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

Boston, Logan International Airport (KBOS)

Lat: 42.36°NLon: 71.01°WElev: 20ft.

A Few Clouds

71°F

22°C

Humidity 61%
Wind Speed SE 9 mph
Barometer 30.17 in (1021.6 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 2 Sep 11:54 am EDT
Extended Forecast for

Watertown MA

  • This Afternoon

    This Afternoon: Sunny, with a high near 77. East wind around 7 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 55. Southeast wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 80. Calm wind becoming east 5 to 7 mph in the afternoon.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57. South wind 3 to 6 mph.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81. Light southwest wind becoming south 5 to 9 mph in the morning.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers after 2am. Partly cloudy, with a low around 63. South wind 6 to 8 mph. Chance of precipitation is 20%.

    Low: 63 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Friday

    Friday: A chance of showers after 7am. Partly sunny, with a high near 83. South wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    High: 83 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 68. South wind 7 to 10 mph, with gusts as high as 21 mph.

    Low: 68 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers. Partly sunny, with a high near 85. Southwest wind 7 to 11 mph. Chance of precipitation is 40%.

    High: 85 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 77. East wind around 7 mph.
Tonight
Partly cloudy, with a low around 55. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 80. Calm wind becoming east 5 to 7 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 57. South wind 3 to 6 mph.
Thursday
Sunny, with a high near 81. Light southwest wind becoming south 5 to 9 mph in the morning.
Thursday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 63. South wind 6 to 8 mph. Chance of precipitation is 20%.
Friday
A chance of showers after 7am. Partly sunny, with a high near 83. South wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 68. South wind 7 to 10 mph, with gusts as high as 21 mph.
Saturday
A chance of showers. Partly sunny, with a high near 85. Southwest wind 7 to 11 mph. Chance of precipitation is 40%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 59. Southwest wind 6 to 8 mph. Chance of precipitation is 40%.
Sunday
A chance of showers. Mostly sunny, with a high near 75. West wind around 7 mph. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 54. Northwest wind around 6 mph.
Monday
Sunny, with a high near 74. Northwest wind around 6 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown MA
 42.37°N 71.16°W (Elev. 46 ft)
Last Update:
12:08 pm EDT Sep 2, 2025
Forecast Valid:
12pm EDT Sep 2, 2025-6pm EDT Sep 8, 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