Current conditions at
Boston, Logan International Airport (KBOS)
Lat: 42.36°NLon: 71.01°WElev: 20ft.
Overcast
69°F
21°C
| Humidity | 81% |
| Wind Speed | NE 8 mph |
| Barometer | 30.08 in (1018.6 mb) |
| Dewpoint | 63°F (17°C) |
| Visibility | 10.00 mi |
| Last update | 21 Aug 4:54 pm EDT |
Extended Forecast for
Watertown MA
Tonight
Low: 63 °F
Mostly Cloudy
then Slight
Chance
ShowersSaturday

High: 73 °F
Chance
ShowersSaturday Night

Low: 63 °F
Heavy Rain
and Patchy
FogSunday

High: 79 °F
Heavy Rain
and Patchy
FogSunday Night
Low: 65 °F
Chance
Showers then
Mostly CloudyMonday

High: 83 °F
Sunny
Monday Night

Low: 60 °F
Clear
Tuesday

High: 81 °F
Sunny
Tuesday Night

Low: 60 °F
Mostly Clear
Detailed Forecast
Tonight
A slight chance of showers after 2am. Mostly cloudy, with a low around 63. North wind 3 to 7 mph. Chance of precipitation is 20%.
Saturday
A chance of showers, mainly after 8am. Cloudy, with a high near 73. Northeast wind 7 to 9 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A slight chance of showers before midnight, then a chance of showers after 3am. The rain could be heavy at times. Patchy fog after 9pm. Otherwise, cloudy, with a low around 63. Light northeast wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers likely, with thunderstorms also possible after 2pm. Some of the storms could produce heavy rainfall. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 79. East wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 65. South wind 3 to 5 mph. Chance of precipitation is 30%.
Monday
Sunny, with a high near 83. Southwest wind 5 to 10 mph.
Monday Night
Clear, with a low around 60. West wind around 6 mph.
Tuesday
Sunny, with a high near 81. West wind 6 to 10 mph.
Tuesday Night
Mostly clear, with a low around 60. West wind around 6 mph.
Wednesday
Sunny, with a high near 84. West wind 5 to 8 mph.
Wednesday Night
Partly cloudy, with a low around 64. Southwest wind 3 to 5 mph.
Thursday
A chance of showers. Partly sunny, with a high near 83. Light south wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 66. South wind 3 to 6 mph. Chance of precipitation is 40%.
Friday
A chance of showers. Partly sunny, with a high near 83. West wind 5 to 8 mph. Chance of precipitation is 30%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Watertown MA
42.37°N 71.16°W (Elev. 46 ft)
42.37°N 71.16°W (Elev. 46 ft)
2:48 pm EDT Aug 21, 2026
5pm EDT Aug 21, 2026-6pm EDT Aug 28, 2026


