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Current weather in Watertown is clear sky.

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Is the weather forecast for Watertown updated regularly?

Weather data for Watertown is updated regularly with the latest available observations and forecasts.

Now · 11:45 AM

Watertown Weather & Hourly Forecast

United States · Massachusetts

62°F

Sunny

Feels like: 55°F

💧 Humidity 57% 🌡 Pressure 30.36 inHg 💨 Wind 10 mph 👁 Visibility 29.7 mi ☁ Clouds 12% ☀️ UV index 3.9 · Moderate 🌅 Sunrise 6:30 AM 🌇 Sunset 6:43 PM

Hourly Forecast for Watertown

Today

12:00 PM

Sunny

62° 💧 None 💨 10 mph H 57%30.36 inHg

3:00 PM

Sunny

62° 💧 None 💨 10 mph H 54%30.36 inHg

6:00 PM

Partly cloudy

58° 💧 None 💨 7 mph H 55%30.39 inHg

9:00 PM

Partly cloudy night

53° 💧 None 💨 6 mph H 73%30.42 inHg

Tomorrow

12:00 AM

Mostly cloudy night

52° 💧 None 💨 6 mph H 80%30.45 inHg

3:00 AM

Partly cloudy night

51° 💧 None 💨 8 mph H 86%30.45 inHg

6:00 AM

Partly cloudy night

52° 💧 None 💨 8 mph H 86%30.47 inHg

9:00 AM

Mostly cloudy

59° 💧 0.001 in 💨 11 mph H 72%30.50 inHg

12:00 PM

Mostly cloudy

62° 💧 None 💨 14 mph H 54%30.53 inHg

3:00 PM

Mostly cloudy

62° 💧 None 💨 14 mph H 52%30.50 inHg

6:00 PM

Sunny

57° 💧 None 💨 11 mph H 60%30.50 inHg

9:00 PM

Clear night

53° 💧 None 💨 7 mph H 77%30.50 inHg

Thursday

12:00 AM

Clear night

51° 💧 None 💨 7 mph H 84%30.47 inHg

3:00 AM

Mostly clear night

50° 💧 None 💨 7 mph H 91%30.47 inHg

6:00 AM

Clear night

49° 💧 None 💨 9 mph H 92%30.45 inHg

9:00 AM

Sunny

55° 💧 None 💨 8 mph H 76%30.45 inHg

Today

12:00 PM

Sunny

62° 💧 None 💨 10 mph H 57%30.36 inHg

1:00 PM

Sunny

62° 💧 None 💨 10 mph H 54%30.36 inHg

2:00 PM

Sunny

62° 💧 None 💨 10 mph H 53%30.36 inHg

3:00 PM

Sunny

62° 💧 None 💨 10 mph H 54%30.36 inHg

4:00 PM

Mostly sunny

61° 💧 None 💨 10 mph H 55%30.39 inHg

5:00 PM

Mostly sunny

60° 💧 None 💨 9 mph H 54%30.39 inHg

6:00 PM

Partly cloudy

58° 💧 None 💨 7 mph H 55%30.39 inHg

7:00 PM

Mostly cloudy night

55° 💧 None 💨 6 mph H 63%30.39 inHg

8:00 PM

Partly cloudy night

54° 💧 None 💨 6 mph H 68%30.42 inHg

9:00 PM

Partly cloudy night

53° 💧 None 💨 6 mph H 73%30.42 inHg

10:00 PM

Mostly cloudy night

53° 💧 None 💨 6 mph H 75%30.45 inHg

11:00 PM

Mostly cloudy night

53° 💧 None 💨 6 mph H 77%30.45 inHg

Tomorrow

12:00 AM

Mostly cloudy night

52° 💧 None 💨 6 mph H 80%30.45 inHg

1:00 AM

Mostly cloudy night

52° 💧 None 💨 7 mph H 83%30.45 inHg

2:00 AM

Mostly cloudy night

52° 💧 None 💨 8 mph H 86%30.45 inHg

3:00 AM

Partly cloudy night

51° 💧 None 💨 8 mph H 86%30.45 inHg

4:00 AM

Mostly cloudy night

51° 💧 None 💨 8 mph H 86%30.45 inHg

5:00 AM

Partly cloudy night

52° 💧 None 💨 8 mph H 85%30.45 inHg

6:00 AM

Partly cloudy night

52° 💧 None 💨 8 mph H 86%30.47 inHg

7:00 AM

Mostly cloudy

52° 💧 None 💨 8 mph H 85%30.47 inHg

8:00 AM

Mostly cloudy

56° 💧 None 💨 11 mph H 78%30.50 inHg

9:00 AM

Mostly cloudy

59° 💧 0.001 in 💨 11 mph H 72%30.50 inHg

10:00 AM

Mostly cloudy

61° 💧 None 💨 13 mph H 63%30.50 inHg

11:00 AM

Mostly sunny

62° 💧 None 💨 14 mph H 57%30.53 inHg

12:00 PM

Mostly cloudy

62° 💧 None 💨 14 mph H 54%30.53 inHg

1:00 PM

Mostly sunny

63° 💧 None 💨 14 mph H 51%30.53 inHg

2:00 PM

Mostly sunny

62° 💧 None 💨 14 mph H 50%30.50 inHg

3:00 PM

Mostly cloudy

62° 💧 None 💨 14 mph H 52%30.50 inHg

4:00 PM

Sunny

60° 💧 None 💨 13 mph H 54%30.50 inHg

5:00 PM

Sunny

59° 💧 None 💨 12 mph H 56%30.50 inHg

6:00 PM

Sunny

57° 💧 None 💨 11 mph H 60%30.50 inHg

7:00 PM

Clear night

55° 💧 None 💨 9 mph H 66%30.50 inHg

8:00 PM

Clear night

54° 💧 None 💨 8 mph H 71%30.50 inHg

9:00 PM

Clear night

53° 💧 None 💨 7 mph H 77%30.50 inHg

10:00 PM

Clear night

52° 💧 None 💨 7 mph H 82%30.50 inHg

11:00 PM

Clear night

52° 💧 None 💨 7 mph H 83%30.50 inHg

Thursday

12:00 AM

Clear night

51° 💧 None 💨 7 mph H 84%30.47 inHg

1:00 AM

Clear night

51° 💧 None 💨 7 mph H 86%30.47 inHg

2:00 AM

Mostly clear night

50° 💧 None 💨 7 mph H 88%30.47 inHg

3:00 AM

Mostly clear night

50° 💧 None 💨 7 mph H 91%30.47 inHg

4:00 AM

Partly cloudy night

50° 💧 None 💨 8 mph H 92%30.45 inHg

5:00 AM

Clear night

49° 💧 None 💨 8 mph H 92%30.45 inHg

6:00 AM

Clear night

49° 💧 None 💨 9 mph H 92%30.45 inHg

7:00 AM

Sunny

49° 💧 None 💨 9 mph H 90%30.45 inHg

8:00 AM

Sunny

51° 💧 None 💨 8 mph H 85%30.45 inHg

9:00 AM

Sunny

55° 💧 None 💨 8 mph H 76%30.45 inHg

10:00 AM

Mostly sunny

59° 💧 None 💨 12 mph H 63%30.45 inHg

11:00 AM

Mostly sunny

60° 💧 None 💨 12 mph H 57%30.45 inHg

12:00 PM

Mostly sunny

61° 💧 None 💨 12 mph H 55%30.42 inHg

1:00 PM

Mostly sunny

62° 💧 None 💨 12 mph H 53%30.42 inHg

2:00 PM

Mostly sunny

62° 💧 None 💨 12 mph H 53%30.39 inHg

3:00 PM

Sunny

61° 💧 None 💨 11 mph H 52%30.36 inHg

4:00 PM

Sunny

60° 💧 None 💨 11 mph H 51%30.36 inHg

5:00 PM

Sunny

59° 💧 None 💨 11 mph H 52%30.36 inHg

6:00 PM

Partly cloudy

57° 💧 None 💨 9 mph H 56%30.36 inHg

7:00 PM

Mostly cloudy night

55° 💧 None 💨 7 mph H 63%30.33 inHg

8:00 PM

Mostly cloudy night

53° 💧 None 💨 7 mph H 69%30.36 inHg

Friday

5:00 AM

Mostly cloudy night

50° 💧 None 💨 8 mph H 81%30.21 inHg

8:00 AM

Partly cloudy

54° 💧 None 💨 10 mph H 77%30.21 inHg

11:00 AM

Partly cloudy

64° 💧 None 💨 11 mph H 57%30.18 inHg

2:00 PM

Overcast

67° 💧 None 💨 14 mph H 45%30.15 inHg

5:00 PM

Overcast

63° 💧 None 💨 10 mph H 49%30.12 inHg

8:00 PM

Overcast night

59° 💧 None 💨 7 mph H 63%30.12 inHg

11:00 PM

Overcast night

58° 💧 None 💨 7 mph H 72%30.09 inHg

Saturday

2:00 AM

Overcast night

60° 💧 None 💨 11 mph H 63%30.06 inHg

5:00 AM

Overcast night

58° 💧 None 💨 11 mph H 67%30.03 inHg

8:00 AM

Overcast

58° 💧 None 💨 12 mph H 60%30.03 inHg

11:00 AM

Overcast

59° 💧 None 💨 13 mph H 60%30.00 inHg

2:00 PM

Overcast

60° 💧 None 💨 16 mph H 61%29.97 inHg

5:00 PM

Overcast

62° 💧 None 💨 17 mph H 56%29.91 inHg

8:00 PM

Overcast night

61° 💧 None 💨 18 mph H 64%29.88 inHg

11:00 PM

Moderate rain

59° 💧 None 💨 17 mph H 80%29.85 inHg

Sunday

2:00 AM

Heavy rain

57° 💧 None 💨 18 mph H 95%29.83 inHg

5:00 AM

Moderate rain

56° 💧 None 💨 19 mph H 96%29.80 inHg

8:00 AM

Light rain

56° 💧 None 💨 18 mph H 96%29.80 inHg

11:00 AM

Moderate rain

57° 💧 None 💨 18 mph H 93%29.83 inHg

2:00 PM

Light rain

58° 💧 None 💨 18 mph H 94%29.83 inHg

5:00 PM

Light rain

57° 💧 None 💨 16 mph H 95%29.83 inHg

8:00 PM

Light rain

57° 💧 None 💨 15 mph H 98%29.83 inHg

11:00 PM

Moderate rain

58° 💧 None 💨 13 mph H 99%29.83 inHg

Monday

2:00 AM

Moderate rain

57° 💧 None 💨 14 mph H 99%29.80 inHg

8:00 AM

Moderate rain

60° 💧 None 💨 10 mph H 99%29.77 inHg

2:00 PM

Moderate rain

58° 💧 None 💨 12 mph H 99%29.80 inHg

8:00 PM

Light rain

59° 💧 None 💨 9 mph H 98%29.83 inHg

Tuesday

2:00 AM

Light rain

56° 💧 None 💨 11 mph H 98%29.83 inHg

8:00 AM

Light rain

57° 💧 None 💨 10 mph H 99%29.83 inHg

2:00 PM

Moderate rain

59° 💧 None 💨 12 mph H 99%29.85 inHg

8:00 PM

Light rain

60° 💧 None 💨 12 mph H 93%29.91 inHg

Wednesday

2:00 AM

Overcast night

57° 💧 None 💨 11 mph H 92%29.97 inHg

8:00 AM

Overcast

58° 💧 None 💨 9 mph H 88%30.00 inHg

2:00 PM

Overcast

58° 💧 None 💨 7 mph H 85%30.06 inHg

8:00 PM

Mostly cloudy night

66° 💧 None 💨 7 mph H 73%30.06 inHg

Thursday

2:00 AM

Clear night

60° 💧 None 💨 2 mph H 92%30.09 inHg

8:00 AM

Mostly cloudy

55° 💧 None 💨 1 mph H 96%30.12 inHg

2:00 PM

Sunny

58° 💧 None 💨 4 mph H 91%30.18 inHg

8:00 PM

Mostly clear night

75° 💧 None 💨 3 mph H 60%30.18 inHg

Friday

2:00 AM

Clear night

64° 💧 None 💨 4 mph H 87%30.21 inHg

8:00 AM

Sunny

59° 💧 None 💨 4 mph H 96%30.24 inHg

2:00 PM

Mostly sunny

60° 💧 None 💨 4 mph H 90%30.30 inHg

8:00 PM

Mostly clear night

75° 💧 None 💨 2 mph H 51%30.27 inHg

Saturday

2:00 AM

Clear night

63° 💧 None 💨 6 mph H 88%30.24 inHg

8:00 AM

Overcast

60° 💧 None 💨 5 mph H 94%30.21 inHg

2:00 PM

Mostly cloudy

62° 💧 None 💨 6 mph H 91%30.21 inHg

8:00 PM

Mostly clear night

79° 💧 None 💨 7 mph H 55%30.12 inHg

Sunday

2:00 AM

Clear night

68° 💧 None 💨 7 mph H 85%30.12 inHg

8:00 AM

Sunny

62° 💧 None 💨 7 mph H 95%30.12 inHg

2:00 PM

Mostly sunny

62° 💧 None 💨 6 mph H 93%30.12 inHg

8:00 PM

Clear night

77° 💧 None 💨 10 mph H 58%30.06 inHg

Monday

2:00 AM

Mostly clear night

66° 💧 None 💨 11 mph H 83%30.03 inHg

8:00 AM

Mostly cloudy

63° 💧 None 💨 11 mph H 83%30.00 inHg

2:00 PM

Light rain

64° 💧 None 💨 11 mph H 84%29.94 inHg

8:00 PM

Light rain

67° 💧 None 💨 10 mph H 91%29.91 inHg

Tuesday

2:00 AM

Mostly cloudy night

65° 💧 None 💨 6 mph H 79%30.00 inHg

8:00 AM

Mostly sunny

53° 💧 None 💨 5 mph H 70%30.12 inHg

2:00 PM

Sunny

51° 💧 None 💨 5 mph H 72%30.18 inHg

8:00 PM

Overcast night

65° 💧 None 💨 1 mph H 45%30.12 inHg

Wednesday

2:00 AM

Overcast night

55° 💧 None 💨 4 mph H 77%30.06 inHg

In Watertown and, more broadly, across the state of Massachusetts: This morning will start with mostly cloudy skies and mild temperatures ranging from 52 to 66 degrees Fahrenheit. Winds will be coming from the north at around 10 mph, with occasional gusts reaching up to 23 mph. As the day progresses into the afternoon, the cloud cover is expected to remain, but no precipitation is forecasted. Temperatures will stay mild, providing comfortable conditions for outdoor activities. Winds will continue at moderate speeds, with gusts still reaching around 23 mph. Overall, it looks like a relatively calm and cloudy day with no significant weather disturbances expected.

15-Day Weather Outlook for Watertown

TomorrowTomorrow

Mostly cloudy 63°/51° 💧 None 💨 14 mph

Thursday, Sep 24Thu Sep 24

Mostly sunny 62°/49° 💧 None 💨 12 mph

Friday, Sep 25Fri Sep 25

Mostly cloudy 67°/50° 💧 0.004 in 💨 14 mph

Saturday, Sep 26Sat Sep 26

Moderate rain 62°/58° 💧 0.112 in 💨 18 mph

Sunday, Sep 27Sun Sep 27

Heavy rain 58°/56° 💧 1.737 in 💨 19 mph

Monday, Sep 28Mon Sep 28

Moderate rain 60°/57° 💧 3.997 in 💨 14 mph

Tuesday, Sep 29Tue Sep 29

Moderate rain 60°/56° 💧 0.901 in 💨 12 mph

Wednesday, Sep 30Wed Sep 30

Overcast 66°/57° 💧 0.059 in 💨 11 mph

Thursday, Oct 1Thu Oct 1

Mostly sunny 75°/55° 💧 0.011 in 💨 4 mph

Friday, Oct 2Fri Oct 2

Mostly sunny 75°/59° 💧 0.005 in 💨 4 mph

Saturday, Oct 3Sat Oct 3

Overcast 79°/60° 💧 None 💨 7 mph

Sunday, Oct 4Sun Oct 4

Mostly sunny 77°/62° 💧 None 💨 10 mph

Monday, Oct 5Mon Oct 5

Light rain 67°/63° 💧 0.112 in 💨 11 mph

Tuesday, Oct 6Tue Oct 6

Mostly cloudy 65°/51° 💧 0.005 in 💨 6 mph

Wednesday, Oct 7Wed Oct 7

Overcast 55°/55° 💧 None 💨 4 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Watertown

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Watertown

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 12:00 PM

PM2.5 Fine particles Good 1,2µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 3,6µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 59,8µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 2,7µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Watertown

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 5,5Moderate 😊Good

Tomorrow UV 4,8Moderate 🙂Fair

Thursday UV 5,1Moderate 🙂Fair

Friday UV 4,7Moderate 😐Moderate

Saturday UV 5,0Moderate 🙂Fair

Sunday UV 4,0Moderate —Unavailable

Monday UV 4,0Moderate —Unavailable

Hourly UV index today

12:00 PMUV 5,3 1:00 PMUV 5,5 2:00 PMUV 4,7 3:00 PMUV 3,4 4:00 PMUV 1,9 5:00 PMUV 0,8 6:00 PMUV 0,2 7:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Watertown

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · WATERTOWN, MASSACHUSETTS

Tonight's Stargazing & Shooting Stars

Fair observing conditions. Best local viewing window: 5:00 AM–6:00 AM.

59/100Best-hour score

BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 8:16 PM–4:59 AM

☁ Cloud cover 57% Real hourly forecast for the best viewing hour.

☾ Moonlight 89% Waxing Gibbous · Moon below the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 60° high at the best hour.

✦ Estimated visible meteors 1–2/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min53%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

ACTIVE NOW

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

Explore current conditions and forecasts for other locations.

Forecast data for Watertown were last refreshed today at 11:45 AM. The current forecast period extends through 24/09/2026 at 9:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.