National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Laurence G Hanscom Field Airport (KBED)

Lat: 42.47°NLon: 71.29°WElev: 132ft.

Partly Cloudy

90°F

32°C

Humidity 52%
Wind Speed SW 7 mph
Barometer 29.99 in (1016.3 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 15 Jul 4:51 pm EDT
Extended Forecast for

Watertown MA

Heat Advisory July 15, 05:01pm until July 17, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 15, 05:01pm until July 17, 07:00pm

    NOW until 7:00pm Thu

    Heat Advisory

  • This Afternoon

    High: 90 °F

    Isolated
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 71. South wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 94. Heat index values as high as 100. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 94 °F

    Hot

  • Wednesday Night

    Wednesday Night: A slight chance of showers after 3am. Increasing clouds, with a low around 76. Southwest wind around 6 mph. Chance of precipitation is 20%.

    Low: 76 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms. Mostly cloudy and hot, with a high near 91. Southwest wind 6 to 10 mph. Chance of precipitation is 50%.

    High: 91 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Partly cloudy, with a low around 75. Southwest wind around 7 mph. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 87. Northwest wind 6 to 8 mph.

    High: 87 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 64. North wind 3 to 5 mph.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Isolated showers and thunderstorms. Partly sunny and hot, with a high near 90. Heat index values as high as 95. Southwest wind around 6 mph. Chance of precipitation is 20%.
Tonight
Mostly clear, with a low around 71. South wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny and hot, with a high near 94. Heat index values as high as 100. Calm wind becoming southwest around 6 mph in the afternoon.
Wednesday Night
A slight chance of showers after 3am. Increasing clouds, with a low around 76. Southwest wind around 6 mph. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms. Mostly cloudy and hot, with a high near 91. Southwest wind 6 to 10 mph. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Partly cloudy, with a low around 75. Southwest wind around 7 mph. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 87. Northwest wind 6 to 8 mph.
Friday Night
Mostly clear, with a low around 64. North wind 3 to 5 mph.
Saturday
Sunny, with a high near 83. Light and variable wind becoming east around 6 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 66. Southwest wind 3 to 6 mph.
Sunday
A chance of showers. Partly sunny, with a high near 84. South wind 5 to 9 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 67. South wind around 6 mph becoming west after midnight. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 82. North wind around 7 mph.
Monday Night
Partly cloudy, with a low around 63. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Watertown MA
 42.38°N 71.19°W (Elev. 98 ft)
Last Update:
3:27 pm EDT Jul 15, 2025
Forecast Valid:
5pm EDT Jul 15, 2025-6pm EDT Jul 22, 2025
 
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