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 55%
Wind Speed SE 8 mph
Barometer 29.98 in (1015.2 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 3 Sep 10:54 am EDT
Extended Forecast for

Watertown MA

  • Today

    Today: Sunny, with a high near 77. Southeast wind 6 to 9 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 55. Southwest wind 3 to 8 mph.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81. Light southwest wind becoming south 5 to 10 mph in the morning.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers after 2am. Increasing clouds, with a low around 63. South wind 7 to 10 mph. Chance of precipitation is 20%.

    Low: 63 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers before 11am. Mostly sunny, with a high near 86. South wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    High: 86 °F

    Slight Chance
    Showers then
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 69. South wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 69 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers after 1pm. Mostly sunny, with a high near 87. South wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.

    High: 87 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly after 9pm. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 60. Southwest wind 6 to 8 mph. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: A chance of showers. Partly sunny, with a high near 75. Northwest wind around 6 mph. Chance of precipitation is 50%.

    High: 75 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 77. Southeast wind 6 to 9 mph.
Tonight
Mostly clear, with a low around 55. Southwest wind 3 to 8 mph.
Thursday
Sunny, with a high near 81. Light southwest wind becoming south 5 to 10 mph in the morning.
Thursday Night
A slight chance of showers after 2am. Increasing clouds, with a low around 63. South wind 7 to 10 mph. Chance of precipitation is 20%.
Friday
A slight chance of showers before 11am. Mostly sunny, with a high near 86. South wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 69. South wind 8 to 10 mph, with gusts as high as 21 mph.
Saturday
A chance of showers after 1pm. Mostly sunny, with a high near 87. South wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 40%.
Saturday Night
Showers likely, mainly after 9pm. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 60. Southwest wind 6 to 8 mph. Chance of precipitation is 60%.
Sunday
A chance of showers. Partly sunny, with a high near 75. Northwest wind around 6 mph. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 55. Northwest wind around 5 mph.
Monday
Sunny, with a high near 76. Northwest wind around 6 mph.
Monday Night
Mostly clear, with a low around 53. South wind around 5 mph becoming light and variable in the evening.
Tuesday
Mostly sunny, with a high near 74. North wind 5 to 7 mph becoming east in the afternoon.
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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:
10:26 am EDT Sep 3, 2025
Forecast Valid:
11am EDT Sep 3, 2025-6pm EDT Sep 9, 2025
 
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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