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

72°F

22°C

Humidity 91%
Wind Speed S 6 mph
Barometer 30.00 in (1015.7 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 2 Aug 6:54 am EDT
Extended Forecast for

Watertown MA

  • Today

    Today: Mostly cloudy, with a high near 86. South wind 6 to 11 mph.

    High: 86 °F

    Mostly Cloudy

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am. Patchy fog after 1am. Low around 70. Southeast wind 5 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 70 °F

    Chance
    Showers then
    Showers and
    Patchy Fog

  • Monday

    Monday: Showers likely and possibly a thunderstorm before 9am, then showers between 9am and 11am, then showers and possibly a thunderstorm after 11am. Patchy fog before 9am. High near 82. Southwest wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 82 °F

    Showers and
    Patchy Fog

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 11pm, then a chance of showers. Mostly cloudy, with a low around 67. West wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers after 2pm. Mostly sunny, with a high near 84. West wind 5 to 7 mph becoming east in the afternoon. Chance of precipitation is 20%.

    High: 84 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 66. Light southwest wind.

    Low: 66 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers after 2pm. Mostly sunny, with a high near 84. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 30%.

    High: 84 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers before 8pm. Partly cloudy, with a low around 70. Southwest wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers after 10am. Partly sunny, with a high near 87. Southwest wind 6 to 9 mph. Chance of precipitation is 40%.

    High: 87 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly cloudy, with a high near 86. South wind 6 to 11 mph.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am. Patchy fog after 1am. Low around 70. Southeast wind 5 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers likely and possibly a thunderstorm before 9am, then showers between 9am and 11am, then showers and possibly a thunderstorm after 11am. Patchy fog before 9am. High near 82. Southwest wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and thunderstorms likely before 11pm, then a chance of showers. Mostly cloudy, with a low around 67. West wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A slight chance of showers after 2pm. Mostly sunny, with a high near 84. West wind 5 to 7 mph becoming east in the afternoon. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 66. Light southwest wind.
Wednesday
A chance of showers after 2pm. Mostly sunny, with a high near 84. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 30%.
Wednesday Night
A chance of showers before 8pm. Partly cloudy, with a low around 70. Southwest wind 3 to 5 mph. Chance of precipitation is 30%.
Thursday
A chance of showers after 10am. Partly sunny, with a high near 87. Southwest wind 6 to 9 mph. Chance of precipitation is 40%.
Thursday Night
Partly cloudy, with a low around 72. Southwest wind around 6 mph.
Friday
A chance of showers. Mostly sunny, with a high near 89. Southwest wind 5 to 8 mph. Chance of precipitation is 30%.
Friday Night
A chance of showers. Partly cloudy, with a low around 70. Southwest wind 3 to 6 mph. Chance of precipitation is 30%.
Saturday
A chance of showers. Mostly sunny, with a high near 89. West wind 3 to 8 mph. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown MA
 42.38°N 71.19°W (Elev. 98 ft)
Last Update:
1:20 am EDT Aug 2, 2026
Forecast Valid:
7am EDT Aug 2, 2026-6pm EDT Aug 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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