See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
20°
Overcast
Feels Like: 21°
Min: 8°
Max: 20°
The next few hours will be clear, with today reaching 20°C and dropping to 16°C. The coming days will be mostly clear throughout the day.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:49
Sunrise
19:06
Sunset
Moon
Waxing Crescent
11:50
Moonrise
20:29
Moonset
Daily Forecast
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Wednesday
Thursday
Friday
Saturday
Sunday
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Thursday
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UV Index
Humidity
Weather in Watertown today, September 15, 2026
Cloud cover dominates in Watertown on September 15, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells.
Expect highs of 20°C and cooler readings close to 8°C. Moisture in the air spans 53%-73%, with the highest values around 23:00. Expect gentle winds, highest near 22:00 at 5.2 km/h.
Expect persistent cloud later on, with amounts around 100% by 17:00. Sunshine remains the exception, not the rule. Visibility stays near 16.1 km. Daylight runs from 06:49 to 19:06, lasting 12 hours 17 minutes of sunlight today.
Taken together, overcast skies in Watertown on September 15, 2026 favour indoor or covered options, with temperatures near 20°C.
Frequently asked questions about weather in Watertown
How warm does it get in Watertown?
The warmest month in Watertown is July, with average high temperatures of 26°C. The average temperature during this period is around 22°C.
How cold does it get in Watertown?
The coldest month in Watertown is January, with average low temperatures of -7°C. The average temperature during this period is around -4°C.
What is the wettest time of year in Watertown?
The wettest month in Watertown is October, with an average of 141mm of precipitation.
What is the driest time of year in Watertown?
The driest month in Watertown is September, with an average of 75mm of precipitation.
