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

44°F

7°C

Humidity 89%
Wind Speed NE 7 mph
Barometer 29.84 in (1010.4 mb)
Dewpoint 41°F (5°C)
Visibility 7.00 mi
Wind Chill40°F (4°C)
Last update 21 Mar 9:54 am EDT
Extended Forecast for

Watertown MA

  • Today

    Today: Mostly cloudy early, then gradual clearing, with a high near 49. Northwest wind 8 to 11 mph, with gusts as high as 24 mph.

    High: 49 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 37. North wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of rain and snow before 9am, then rain likely. Cloudy, with a high near 52. Southeast wind 7 to 10 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 52 °F

    Chance
    Rain/Snow
    then Rain
    Likely

  • Sunday Night

    Sunday Night: Rain before 4am, then rain and snow likely. Low around 35. West wind 5 to 7 mph becoming north after midnight. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 35 °F

    Rain then
    Rain/Snow
    Likely

  • Monday

    Monday: Snow likely, mainly before 8am. Cloudy, with a high near 41. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 41 °F

    Snow Likely
    then Chance
    Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29. Northwest wind around 7 mph.

    Low: 29 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 45. Northwest wind around 7 mph.

    High: 45 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 33. Southwest wind around 7 mph.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 52. West wind 8 to 11 mph, with gusts as high as 22 mph.

    High: 52 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy early, then gradual clearing, with a high near 49. Northwest wind 8 to 11 mph, with gusts as high as 24 mph.
Tonight
Increasing clouds, with a low around 37. North wind around 5 mph becoming calm in the evening.
Sunday
A chance of rain and snow before 9am, then rain likely. Cloudy, with a high near 52. Southeast wind 7 to 10 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Sunday Night
Rain before 4am, then rain and snow likely. Low around 35. West wind 5 to 7 mph becoming north after midnight. Chance of precipitation is 80%. Little or no snow accumulation expected.
Monday
Snow likely, mainly before 8am. Cloudy, with a high near 41. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Monday Night
Mostly cloudy, with a low around 29. Northwest wind around 7 mph.
Tuesday
Mostly sunny, with a high near 45. Northwest wind around 7 mph.
Tuesday Night
Mostly cloudy, with a low around 33. Southwest wind around 7 mph.
Wednesday
Partly sunny, with a high near 52. West wind 8 to 11 mph, with gusts as high as 22 mph.
Wednesday Night
Mostly cloudy, with a low around 32. West wind 6 to 8 mph.
Thursday
A chance of rain. Mostly cloudy, with a high near 49. South wind 6 to 9 mph. Chance of precipitation is 30%.
Thursday Night
Rain and snow likely. Mostly cloudy, with a low around 36. Southwest wind around 8 mph. Chance of precipitation is 60%.
Friday
Rain and snow likely. Partly sunny, with a high near 49. Northwest wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
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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:
7:26 am EDT Mar 21, 2026
Forecast Valid:
10am EDT Mar 21, 2026-6pm EDT Mar 27, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation