Massachusetts · NWS BOX office

Watertown, MA weather

It is 27°F and clear at Laurence G Hanscom Field Airport as of Oct 28, 5:00 AM EDT. Overnight: Clear, low near 31°F. Forecast from the National Weather Service, issued Oct 28, 5:15 AM EDT.

Updated Oct 28, 5:24 AM EDT (snapshot)

Current conditions

Temperature

27°F

Clear

Wind

Calm

Humidity 93% · dew point 25°F

Pressure · visibility

30.47 inHg

Visibility 10 mi

Observed at Laurence G Hanscom Field Airport (KBED), Oct 28, 5:00 AM EDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Watertown forecast zone right now.

Around the NWS BOX forecast area

No active alerts in zones served by the BOX office near Watertown.

From the alert snapshot of Oct 28, 2026, 5:12 AM EDT. No alerts are active anywhere in Massachusetts.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

Next 24 hours

Hourly forecast for Watertown (local time)
TimeTempForecastPrecip. chanceWind
Wed 7 AM33°FMostly Sunny0%NW 3 mph
Wed 8 AM34°FMostly Sunny1%NW 3 mph
Wed 9 AM38°FMostly Sunny2%NW 2 mph
Wed 10 AM44°FPartly Sunny1%NW 2 mph
Wed 11 AM49°FMostly Cloudy1%NW 2 mph
Wed 12 PM52°FMostly Cloudy2%W 2 mph
Wed 1 PM54°FPartly Sunny2%SW 3 mph
Wed 2 PM56°FMostly Sunny2%SW 3 mph
Wed 3 PM56°FMostly Sunny2%SW 3 mph
Wed 4 PM56°FPartly Sunny2%SW 3 mph
Wed 5 PM56°FMostly Cloudy2%S 2 mph
Wed 6 PM53°FPartly Cloudy2%S 3 mph
Wed 7 PM51°FPartly Cloudy2%S 3 mph
Wed 8 PM49°FMostly Clear2%S 5 mph
Wed 9 PM45°FMostly Clear2%SW 5 mph
Wed 10 PM44°FMostly Clear2%SW 5 mph
Wed 11 PM44°FClear2%SW 5 mph
Thu 12 AM43°FClear2%SW 5 mph
Thu 1 AM44°FMostly Clear2%SW 5 mph
Thu 2 AM43°FMostly Clear2%SW 5 mph
Thu 3 AM43°FMostly Clear2%SW 5 mph
Thu 4 AM43°FMostly Clear1%SW 5 mph
Thu 5 AM43°FMostly Clear1%SW 5 mph
Thu 6 AM43°FSunny2%SW 5 mph

Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in Watertown can differ.

7-day forecast

Overnight

Low 31°F

Clear, with a low around 31. Northwest wind around 3 mph.

Wednesday

High 57°F·Low 42°F

Partly sunny, with a high near 57. West wind around 3 mph.

Wednesday Night: Mostly clear, with a low around 42. Southwest wind around 5 mph.

Thursday

High 68°F·Low 54°F

Sunny, with a high near 68. Southwest wind 5 to 10 mph.

Thursday Night: Mostly clear, with a low around 54. Southwest wind around 9 mph.

Friday

High 69°F·Low 40°F

Sunny, with a high near 69. West wind 7 to 12 mph, with gusts as high as 25 mph.

Friday Night: Mostly clear, with a low around 40. Northwest wind 5 to 9 mph, with gusts as high as 21 mph.

Saturday

High 57°F·Low 34°F

Sunny, with a high near 57. Northwest wind 3 to 8 mph.

Saturday Night: Mostly clear, with a low around 34. West wind around 2 mph.

Sunday

High 62°F·Low 43°F

Sunny, with a high near 62. Southwest wind 2 to 7 mph.

Sunday Night: Partly cloudy, with a low around 43. Southwest wind around 5 mph.

Monday

High 65°F·Low 45°F

A slight chance of rain showers after 11am. Partly sunny, with a high near 65. Southwest wind around 7 mph.

Monday Night: A chance of rain showers. Mostly cloudy, with a low around 45. West wind around 5 mph. Chance of precipitation is 30%.

Tuesday

High 60°F

A chance of rain showers. Partly sunny, with a high near 60. Northeast wind 6 to 9 mph.

Nearby cities

Larger cities in the area

Other cities in Middlesex County

See every city we cover in Massachusetts, or check all active alerts.

About this forecast

Forecast office
Watertown is served by the National Weather Service BOX forecast office, forecast zone MAZ014, county zone MAC017.
Location used
The Census Bureau's internal point for Watertown (42.3695, -71.1779), in Middlesex County. Population: 35,985 (2024 estimate), number 40 of the 50 Massachusetts cities on this site.
Radar
Nearest NWS radar: KBOX. View it on radar.weather.gov.

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Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/42.3695,-71.1779 (forecast issued Oct 28, 5:15 AM EDT).
  • Official forecast page: forecast.weather.gov.
  • City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
  • Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.

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