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.

Overcast

35°F

2°C

Humidity 93%
Wind Speed E 3 mph
Barometer 29.96 in (1014.3 mb)
Dewpoint 33°F (1°C)
Visibility 7.00 mi
Last update 18 Jan 2:54 pm EST
Extended Forecast for

Watertown MA

Winter Weather Advisory January 18, 03:52pm until January 19, 07:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory January 18, 03:52pm until January 19, 07:00am

    NOW until 7:00am Mon

    Winter Weather Advisory

  • This Afternoon

    High: 38 °F

    Snow Likely

  • Tonight

    Tonight: Snow, mainly before 3am. Low around 29. North wind 3 to 5 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 29 °F

    Snow then
    Snow Likely

  • M.L.King Day

    M.L.King Day: A chance of snow, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 34. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 30%. New snow accumulation of less than one inch possible.

    High: 34 °F

    Chance Snow
    then Partly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 18. Southwest wind 11 to 13 mph, with gusts as high as 23 mph.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 24. West wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 24 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 11. West wind 6 to 10 mph.

    Low: 11 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 31. South wind 6 to 8 mph.

    High: 31 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of snow after 1am. Mostly cloudy, with a low around 24. South wind around 8 mph. Chance of precipitation is 30%.

    Low: 24 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

This Afternoon
Snow likely, mainly after 5pm. Cloudy, with a high near 38. Northeast wind around 5 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tonight
Snow, mainly before 3am. Low around 29. North wind 3 to 5 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
M.L.King Day
A chance of snow, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 34. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 30%. New snow accumulation of less than one inch possible.
Monday Night
Partly cloudy, with a low around 18. Southwest wind 11 to 13 mph, with gusts as high as 23 mph.
Tuesday
Mostly sunny, with a high near 24. West wind 10 to 14 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly clear, with a low around 11. West wind 6 to 10 mph.
Wednesday
Mostly sunny, with a high near 31. South wind 6 to 8 mph.
Wednesday Night
A chance of snow after 1am. Mostly cloudy, with a low around 24. South wind around 8 mph. Chance of precipitation is 30%.
Thursday
A chance of snow before 8am, then a chance of rain between 8am and 5pm, then a chance of rain and snow after 5pm. Partly sunny, with a high near 40. Southwest wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Thursday Night
A chance of snow before 7pm. Partly cloudy, with a low around 17. West wind around 8 mph. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 27. West wind 8 to 10 mph, with gusts as high as 21 mph.
Friday Night
Partly cloudy, with a low around 13. Southwest wind around 7 mph.
Saturday
Partly sunny, with a high near 24. West wind 7 to 9 mph.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 10. Northwest wind around 8 mph. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 18.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Watertown MA
 42.37°N 71.16°W (Elev. 46 ft)
Last Update:
1:08 pm EST Jan 18, 2026
Forecast Valid:
3pm EST Jan 18, 2026-6pm EST Jan 25, 2026
 
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