Watertown Weather Forecast
- 68
- 85
Partly Sunny
- 72
- 94
Mostly Sunny
- 73
- 94
Chance Thunderstorms
- 70
- 86
Chance Thunderstorms
- 68
- 85
Slight Chance Thunderstorms
- 66
- 80
Chance Rain Showers
Today 5 Jul Southeast Middlesex
Mostly sunny. Near steady temperature in the mid 80s. Southwest Winds 5 to 10 Mph.
Tonight 5 Jul Southeast Middlesex
Partly cloudy. Not as cool with Lows in the upper 60s. Southwest Winds 5 to 10 Mph.
Watertown Temperature Statistics
July Temperature
Laurence G Hanscom Field Airport (8.7 miles)
Lowest 3 July, 2025
68 °FAverage July
79.3 °FHighest 1 July, 2025
91 °F
Climate (2020–Present)
Laurence G Hanscom Field Airport (8.7 miles)
Average Low 2020–2025
41.8 °FAverage 2020–2025
52 °FAverage High 2020–2025
62.1 °F