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.

Mostly Cloudy

33°F

1°C

Humidity 61%
Wind Speed SW 9 mph
Barometer 30.01 in (1016.2 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 13 Jan 4:54 am EST
Extended Forecast for

Watertown MA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 45. Southwest wind 7 to 11 mph.

    High: 45 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: A slight chance of showers after 2am. Cloudy, with a low around 36. South wind 11 to 14 mph. Chance of precipitation is 20%.

    Low: 36 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 50. Southwest wind 6 to 11 mph.

    High: 50 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of showers, mainly after 7pm. Cloudy, with a low around 34. South wind 5 to 8 mph. Chance of precipitation is 50%.

    Low: 34 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, mainly before 10am. Partly sunny, with a high near 42. West wind 10 to 17 mph. Chance of precipitation is 40%.

    High: 42 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 16. West wind 15 to 18 mph.

    Low: 16 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 31. West wind 8 to 15 mph.

    High: 31 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 25. Southwest wind around 6 mph.

    Low: 25 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 44. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.

    High: 44 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 45. Southwest wind 7 to 11 mph.
Tonight
A slight chance of showers after 2am. Cloudy, with a low around 36. South wind 11 to 14 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a high near 50. Southwest wind 6 to 11 mph.
Wednesday Night
A chance of showers, mainly after 7pm. Cloudy, with a low around 34. South wind 5 to 8 mph. Chance of precipitation is 50%.
Thursday
A chance of showers, mainly before 10am. Partly sunny, with a high near 42. West wind 10 to 17 mph. Chance of precipitation is 40%.
Thursday Night
Mostly clear, with a low around 16. West wind 15 to 18 mph.
Friday
Sunny, with a high near 31. West wind 8 to 15 mph.
Friday Night
Mostly cloudy, with a low around 25. Southwest wind around 6 mph.
Saturday
Mostly sunny, with a high near 44. Southwest wind 6 to 9 mph, with gusts as high as 20 mph.
Saturday Night
A chance of snow showers before 1am, then a chance of rain showers between 1am and 2am, then a chance of snow showers after 2am. Mostly cloudy, with a low around 28. South wind around 6 mph. Chance of precipitation is 30%.
Sunday
A chance of snow showers. Partly sunny, with a high near 38. West wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 22. West wind 6 to 8 mph.
M.L.King Day
Partly sunny, with a high near 32. West wind 8 to 10 mph, with gusts as high as 24 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:
5:20 am EST Jan 13, 2026
Forecast Valid:
5am EST Jan 13, 2026-6pm EST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation