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September 18th, 2025 :: 7:17 pm EDT   

Local Weather Report for
Watertown
Massachusetts, United States

 Current Watertown Weather Conditions Updated September 18th at 5:51 pm 
Temperature:77°F Dew Point:59°F
Barometer:29.83 inHg Wind:N 9 Mph
Humidity:53.8% Visibility:0M
 
 Watertown Weather Forecast Summary  
 
Today
Sep 18th
Friday
Sep 19th
Saturday
Sep 20th
Sunday
Sep 21st
Monday
Sep 22nd
Cloudy Mostly Sunny Sunny Sunny Mostly Sunny
79°F
79°F
56°F
65°F
52°F
66°F
49°F
72°F
49°F
 
 Watertown Detailed Weather Forecast  
 
Thursday, September 18th, 2025
Evening Temperature: 65°F
Clear.
Friday, September 19th, 2025
Overnight Temperature: 66°F
Clear. Windy at times.
Morning Temperature: 77°F
Sunny. Windy at times.
Afternoon Temperature: 70°F
Sunny with cloudy periods.
Evening Temperature: 59°F
Clear. Windy at times.
Saturday, September 20th, 2025
Overnight Temperature: 54°F
Clear.
Morning Temperature: 64°F
Sunny. Windy at times.
Afternoon Temperature: 60°F
Sunny. Windy at times.
Evening Temperature: 53°F
Clear.
Sunday, September 21st, 2025
Overnight Temperature: 51°F
Clear.
Morning Temperature: 65°F
Sunny.
Afternoon Temperature: 61°F
Sunny.
Evening Temperature: 54°F
Clear.
Monday, September 22nd, 2025
Overnight Temperature: 52°F
Clear.
Morning Temperature: 69°F
Mostly sunny.
Afternoon Temperature: 64°F
Sunny.
Evening Temperature: 59°F
Clear.
Tuesday, September 23rd, 2025
Overnight Temperature: 61°F
Clear.
Morning Temperature: 85°F
A mix of sun and cloud.
Afternoon Temperature: 83°F
Cloudy. Slight chance of a thunderstorm.
Evening Temperature: 68°F
Clear with a chance of showers.
Wednesday, September 24th, 2025
Overnight Temperature: 64°F
Clear with cloudy periods with a chance of showers.
Morning Temperature: 74°F
Sunny. Windy at times.
Afternoon Temperature: 65°F
Sunny with cloudy periods.
Evening Temperature: 63°F
A mix of cloudy and clear skies.
Thursday, September 25th, 2025
Overnight Temperature: 63°F
Cloudy with clear periods.
Morning Temperature: 69°F
Cloudy.
Afternoon Temperature: 66°F
Cloudy.
Evening Temperature: 65°F
A mix of cloudy and clear skies.
Friday, September 26th, 2025
Overnight Temperature: 64°F
Mostly cloudy.
Morning Temperature: 71°F
A mix of cloud and sun with a chance of showers or thundershowers.
Afternoon Temperature: 69°F
A mix of cloud and sun with a chance of showers.
Evening Temperature: 66°F
Cloudy.





 

  [ Local Weather Report ]
Belmont, MA 
5:51 PM  77°F
 
 
Newton, MA 
 
Waltham, MA 
5:51 PM  77°F
 
 
Arlington, MA 
5:51 PM  77°F
 
 
Brookline, MA 
5:54 PM  70°F
Mostly Clear
 
Somerville, MA 
5:54 PM  70°F
Mostly Clear
 
Medford, MA 
5:54 PM  70°F
Mostly Clear
 
Lexington, MA 
5:51 PM  77°F
 
 
Weston, MA 
5:51 PM  77°F
 
 
Winchester, MA 
5:51 PM  77°F
 

This WeatherCity Weather Forecast for Watertown, Massachusetts, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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