Watertown Weather Forecast
- 75
- 94
Increasing Clouds
- 74
- 90
Rain Showers Likely
- 62
- 84
Mostly Sunny
- 68
- 84
Chance Rain Showers
- 64
- 81
Chance Thunderstorms
- 62
- 81
Mostly Sunny
- 65
- 82
Partly Sunny
Today 16 Jul Southeast Middlesex
Sunny, hot. Near steady temperature around 90. South Winds around 5 Mph. Heat index Values up to 100.
Tonight 16 Jul Southeast Middlesex
Mostly clear this Evening, then becoming mostly cloudy. Patchy fog after midnight. Lows in the mid 70s. South Winds around 5 Mph.
Watertown Temperature Statistics
July Temperature
Laurence G Hanscom Field Airport (8.7 miles)
Lowest 4 July, 2025
59 °FAverage July
76.8 °FHighest 6 July, 2025
93 °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 °F