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

Now · 7:51 AM

Boston Weather & Hourly Forecast

United States · Pennsylvania · 15135

68°F

Mostly sunny

Feels like: 68°F

💧 Humidity 82% 🌡 Pressure 30.18 inHg 💨 Wind 8 mph 👁 Visibility 17.2 mi ☁ Clouds 34% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Boston

Today

8:00 AM

Mostly sunny

68° 💧 0.000 in 💨 8 mph H 82%30.18 inHg

11:00 AM

Mostly cloudy

78° 💧 0.010 in 💨 9 mph H 68%30.15 inHg

2:00 PM

Light rain

84° 💧 0.016 in 💨 12 mph H 58%30.06 inHg

5:00 PM

Sunny

85° 💧 0.000 in 💨 10 mph H 55%30.00 inHg

8:00 PM

Clear night

79° 💧 None 💨 9 mph H 73%29.97 inHg

11:00 PM

Mostly cloudy night

76° 💧 0.053 in 💨 9 mph H 77%29.97 inHg

Tomorrow

2:00 AM

Light rain

70° 💧 0.245 in 💨 4 mph H 97%29.97 inHg

5:00 AM

Light thunderstorms

69° 💧 0.128 in 💨 9 mph H 98%29.97 inHg

8:00 AM

Light rain

69° 💧 0.044 in 💨 7 mph H 99%29.97 inHg

11:00 AM

Light rain

71° 💧 0.067 in 💨 9 mph H 97%29.97 inHg

2:00 PM

Light rain

73° 💧 0.230 in 💨 7 mph H 96%29.94 inHg

5:00 PM

Light thunderstorms

71° 💧 0.124 in 💨 5 mph H 98%29.88 inHg

8:00 PM

Overcast night

70° 💧 0.001 in 💨 3 mph H 99%29.88 inHg

11:00 PM

Fog at night

68° 💧 0.000 in 💨 1 mph H 100%29.94 inHg

Friday

2:00 AM

Overcast night

68° 💧 0.000 in 💨 4 mph H 99%29.94 inHg

5:00 AM

Partly cloudy night

64° 💧 None 💨 6 mph H 99%29.97 inHg

Today

8:00 AM

Mostly sunny

68° 💧 None 💨 8 mph H 82%30.18 inHg

9:00 AM

Mostly cloudy

71° 💧 None 💨 7 mph H 78%30.18 inHg

10:00 AM

Mostly sunny

75° 💧 0.000 in 💨 8 mph H 73%30.15 inHg

11:00 AM

Mostly cloudy

78° 💧 None 💨 9 mph H 68%30.15 inHg

12:00 PM

Mostly cloudy

81° 💧 None 💨 10 mph H 65%30.12 inHg

1:00 PM

Light rain

83° 💧 0.010 in 💨 12 mph H 60%30.09 inHg

2:00 PM

Light rain

84° 💧 0.008 in 💨 12 mph H 58%30.06 inHg

3:00 PM

Light rain

85° 💧 0.005 in 💨 11 mph H 56%30.03 inHg

4:00 PM

Sunny

85° 💧 0.003 in 💨 11 mph H 55%30.03 inHg

5:00 PM

Sunny

85° 💧 0.000 in 💨 10 mph H 55%30.00 inHg

6:00 PM

Sunny

84° 💧 None 💨 9 mph H 60%29.97 inHg

7:00 PM

Sunny

81° 💧 None 💨 9 mph H 68%29.97 inHg

8:00 PM

Clear night

79° 💧 None 💨 9 mph H 73%29.97 inHg

9:00 PM

Partly cloudy night

77° 💧 None 💨 9 mph H 77%29.97 inHg

10:00 PM

Mostly clear night

76° 💧 None 💨 10 mph H 77%29.97 inHg

11:00 PM

Mostly cloudy night

76° 💧 None 💨 9 mph H 77%29.97 inHg

Tomorrow

12:00 AM

Light rain

74° 💧 0.008 in 💨 6 mph H 80%29.97 inHg

1:00 AM

Light rain

71° 💧 0.044 in 💨 5 mph H 94%30.00 inHg

2:00 AM

Light rain

70° 💧 0.034 in 💨 4 mph H 97%29.97 inHg

3:00 AM

Light thunderstorms

70° 💧 0.066 in 💨 4 mph H 98%29.97 inHg

4:00 AM

Thunderstorms

70° 💧 0.145 in 💨 7 mph H 98%29.97 inHg

5:00 AM

Light thunderstorms

69° 💧 0.061 in 💨 9 mph H 98%29.97 inHg

6:00 AM

Light thunderstorms

69° 💧 0.039 in 💨 10 mph H 98%29.97 inHg

7:00 AM

Light rain

69° 💧 0.027 in 💨 6 mph H 99%29.97 inHg

8:00 AM

Light rain

69° 💧 0.020 in 💨 7 mph H 99%29.97 inHg

9:00 AM

Light rain

70° 💧 0.005 in 💨 9 mph H 98%29.97 inHg

10:00 AM

Light rain

70° 💧 0.019 in 💨 8 mph H 98%29.97 inHg

11:00 AM

Light rain

71° 💧 0.018 in 💨 9 mph H 97%29.97 inHg

12:00 PM

Light rain

71° 💧 0.032 in 💨 8 mph H 98%29.97 inHg

1:00 PM

Light rain

72° 💧 0.017 in 💨 8 mph H 95%29.97 inHg

2:00 PM

Light rain

73° 💧 0.016 in 💨 7 mph H 96%29.94 inHg

3:00 PM

Light rain

74° 💧 0.025 in 💨 5 mph H 94%29.91 inHg

4:00 PM

Thunderstorms

71° 💧 0.189 in 💨 6 mph H 97%29.91 inHg

5:00 PM

Light thunderstorms

71° 💧 0.059 in 💨 5 mph H 98%29.88 inHg

6:00 PM

Light thunderstorms

71° 💧 0.056 in 💨 4 mph H 98%29.88 inHg

7:00 PM

Light rain

70° 💧 0.009 in 💨 3 mph H 98%29.88 inHg

8:00 PM

Overcast night

70° 💧 0.001 in 💨 3 mph H 99%29.88 inHg

9:00 PM

Overcast night

69° 💧 None 💨 2 mph H 99%29.91 inHg

10:00 PM

Overcast night

69° 💧 None 💨 1 mph H 99%29.94 inHg

11:00 PM

Fog at night

68° 💧 None 💨 1 mph H 100%29.94 inHg

Friday

12:00 AM

Fog at night

68° 💧 None 💨 1 mph H 100%29.94 inHg

1:00 AM

Mist at night

68° 💧 0.000 in 💨 3 mph H 100%29.94 inHg

2:00 AM

Overcast night

68° 💧 0.000 in 💨 4 mph H 99%29.94 inHg

3:00 AM

Mostly cloudy night

66° 💧 None 💨 5 mph H 99%29.94 inHg

4:00 AM

Mostly cloudy night

65° 💧 None 💨 5 mph H 99%29.94 inHg

5:00 AM

Partly cloudy night

64° 💧 None 💨 6 mph H 99%29.97 inHg

6:00 AM

Mostly clear night

63° 💧 None 💨 5 mph H 99%30.00 inHg

7:00 AM

Sunny

62° 💧 None 💨 5 mph H 99%30.00 inHg

8:00 AM

Partly cloudy

63° 💧 None 💨 5 mph H 98%30.03 inHg

9:00 AM

Overcast

64° 💧 None 💨 5 mph H 94%30.03 inHg

10:00 AM

Mostly sunny

67° 💧 None 💨 5 mph H 86%30.03 inHg

11:00 AM

Sunny

70° 💧 None 💨 4 mph H 76%30.03 inHg

12:00 PM

Sunny

73° 💧 None 💨 4 mph H 64%30.03 inHg

1:00 PM

Sunny

74° 💧 None 💨 4 mph H 58%30.03 inHg

2:00 PM

Sunny

75° 💧 None 💨 4 mph H 56%30.00 inHg

3:00 PM

Sunny

76° 💧 None 💨 3 mph H 54%30.00 inHg

4:00 PM

Mostly sunny

76° 💧 None 💨 4 mph H 53%29.97 inHg

5:00 PM

Partly cloudy

76° 💧 None 💨 4 mph H 53%29.97 inHg

6:00 PM

Partly cloudy

74° 💧 None 💨 5 mph H 58%29.97 inHg

7:00 PM

Mostly cloudy

71° 💧 None 💨 3 mph H 71%29.97 inHg

8:00 PM

Overcast night

67° 💧 None 💨 4 mph H 77%29.97 inHg

11:00 PM

Partly cloudy night

63° 💧 None 💨 5 mph H 79%30.00 inHg

Saturday

2:00 AM

Mostly cloudy night

63° 💧 None 💨 4 mph H 84%29.97 inHg

5:00 AM

Overcast night

64° 💧 None 💨 4 mph H 91%29.97 inHg

8:00 AM

Light rain

68° 💧 None 💨 6 mph H 91%30.00 inHg

11:00 AM

Light rain

72° 💧 None 💨 8 mph H 92%30.03 inHg

2:00 PM

Overcast

78° 💧 None 💨 6 mph H 78%29.97 inHg

5:00 PM

Moderate rain

72° 💧 None 💨 5 mph H 96%29.97 inHg

8:00 PM

Partly cloudy night

71° 💧 None 💨 4 mph H 98%29.97 inHg

11:00 PM

Light rain

69° 💧 None 💨 7 mph H 99%30.03 inHg

Sunday

2:00 AM

Mostly cloudy night

68° 💧 None 💨 5 mph H 99%30.00 inHg

5:00 AM

Overcast night

68° 💧 None 💨 4 mph H 99%30.00 inHg

8:00 AM

Overcast

69° 💧 None 💨 4 mph H 99%30.06 inHg

11:00 AM

Light rain

72° 💧 None 💨 4 mph H 93%30.09 inHg

2:00 PM

Partly cloudy

80° 💧 None 💨 2 mph H 72%30.03 inHg

5:00 PM

Mostly sunny

81° 💧 None 💨 3 mph H 64%30.00 inHg

8:00 PM

Mostly clear night

73° 💧 None 💨 1 mph H 92%30.03 inHg

11:00 PM

Clear night

69° 💧 None 💨 3 mph H 95%30.09 inHg

Monday

2:00 AM

Clear night

66° 💧 None 💨 2 mph H 96%30.06 inHg

5:00 AM

Mostly cloudy night

63° 💧 None 💨 2 mph H 100%30.06 inHg

8:00 AM

Overcast

64° 💧 None 💨 2 mph H 98%30.12 inHg

11:00 AM

Partly cloudy

76° 💧 None 💨 1 mph H 83%30.12 inHg

2:00 PM

Overcast

83° 💧 None 💨 2 mph H 63%30.09 inHg

5:00 PM

Mostly cloudy

83° 💧 None 💨 2 mph H 64%30.03 inHg

8:00 PM

Overcast night

75° 💧 None 💨 2 mph H 91%30.03 inHg

Tuesday

2:00 AM

Mostly clear night

71° 💧 None 💨 6 mph H 84%30.06 inHg

8:00 AM

Sunny

71° 💧 None 💨 8 mph H 92%30.06 inHg

2:00 PM

Mostly sunny

86° 💧 None 💨 9 mph H 62%30.03 inHg

8:00 PM

Moderate rain

77° 💧 None 💨 4 mph H 85%30.03 inHg

Wednesday

2:00 AM

Mostly cloudy night

71° 💧 None 💨 4 mph H 99%30.12 inHg

8:00 AM

Moderate rain

69° 💧 None 💨 4 mph H 99%30.18 inHg

2:00 PM

Light rain

73° 💧 None 💨 7 mph H 85%30.18 inHg

8:00 PM

Overcast night

72° 💧 None 💨 4 mph H 85%30.18 inHg

Thursday

2:00 AM

Overcast night

70° 💧 None 💨 4 mph H 91%30.18 inHg

8:00 AM

Overcast

69° 💧 None 💨 4 mph H 93%30.18 inHg

2:00 PM

Partly cloudy

79° 💧 None 💨 2 mph H 67%30.15 inHg

8:00 PM

Clear night

73° 💧 None 💨 2 mph H 83%30.12 inHg

Friday

2:00 AM

Clear night

66° 💧 None 💨 4 mph H 98%30.09 inHg

8:00 AM

Sunny

66° 💧 None 💨 6 mph H 94%30.09 inHg

2:00 PM

Sunny

81° 💧 None 💨 8 mph H 58%30.00 inHg

8:00 PM

Light rain

69° 💧 None 💨 4 mph H 98%30.00 inHg

Saturday

2:00 AM

Overcast night

70° 💧 None 💨 7 mph H 98%30.00 inHg

8:00 AM

Mostly sunny

61° 💧 None 💨 5 mph H 93%30.06 inHg

2:00 PM

Mostly sunny

73° 💧 None 💨 2 mph H 48%30.00 inHg

8:00 PM

Mostly cloudy night

68° 💧 None 💨 4 mph H 74%29.94 inHg

Sunday

2:00 AM

Mostly clear night

65° 💧 None 💨 3 mph H 79%29.88 inHg

8:00 AM

Sunny

71° 💧 None 💨 9 mph H 89%29.85 inHg

2:00 PM

Sunny

84° 💧 None 💨 10 mph H 69%29.83 inHg

8:00 PM

Light thunderstorms

72° 💧 None 💨 7 mph H 96%29.88 inHg

Monday

2:00 AM

Mostly clear night

69° 💧 None 💨 9 mph H 99%29.85 inHg

8:00 AM

Light rain

69° 💧 None 💨 8 mph H 99%29.94 inHg

2:00 PM

Very heavy rain

73° 💧 None 💨 8 mph H 90%29.97 inHg

8:00 PM

Mostly cloudy night

71° 💧 None 💨 3 mph H 97%30.03 inHg

Tuesday

2:00 AM

Heavy rain

69° 💧 None 💨 3 mph H 99%30.06 inHg

8:00 AM

Moderate rain

66° 💧 None 💨 4 mph H 99%30.06 inHg

2:00 PM

Light rain

69° 💧 None 💨 4 mph H 91%30.09 inHg

8:00 PM

Partly cloudy night

67° 💧 None 💨 5 mph H 97%30.09 inHg

Wednesday

2:00 AM

Mostly cloudy night

63° 💧 None 💨 3 mph H 98%30.09 inHg

8:00 AM

Mostly cloudy

64° 💧 None 💨 3 mph H 97%30.12 inHg

2:00 PM

Mostly cloudy

76° 💧 None 💨 3 mph H 64%30.09 inHg

8:00 PM

Mostly clear night

68° 💧 None 💨 1 mph H 86%30.06 inHg

In Boston and, more broadly, across the state of Pennsylvania: This morning will start with mostly cloudy skies and mild temperatures around 60 to 65 degrees Fahrenheit. As the day progresses into the afternoon, temperatures will warm up to the upper 70s and low 80s. A slight chance of rain remains, with some light showers possible, bringing around 0.05 inches of accumulation. The probability of rain peaks at about 58%. Winds will be generally light from the southwest, up to 8 mph, with occasional gusts reaching 19 mph. Overall, expect a warm and somewhat cloudy day with a chance of light rain, especially later in the day.

15-Day Weather Outlook for Boston

TomorrowTomorrow

Light thunderstorms 79°/69° 💧 None 💨 10 mph

Friday, Sep 11Fri Sep 11

Overcast 76°/62° 💧 None 💨 6 mph

Saturday, Sep 12Sat Sep 12

Light rain 80°/64° 💧 0.034 in 💨 11 mph

Sunday, Sep 13Sun Sep 13

Light thunderstorms 81°/68° 💧 0.605 in 💨 5 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 83°/65° 💧 None 💨 4 mph

Tuesday, Sep 15Tue Sep 15

Overcast 85°/73° 💧 None 💨 8 mph

Wednesday, Sep 16Wed Sep 16

Light rain 87°/66° 💧 0.260 in 💨 10 mph

Thursday, Sep 17Thu Sep 17

Mostly sunny 75°/56° 💧 0.001 in 💨 6 mph

Friday, Sep 18Fri Sep 18

Mostly cloudy 73°/59° 💧 None 💨 3 mph

Saturday, Sep 19Sat Sep 19

Overcast 82°/69° 💧 0.191 in 💨 5 mph

Sunday, Sep 20Sun Sep 20

Overcast 79°/70° 💧 0.067 in 💨 7 mph

Monday, Sep 21Mon Sep 21

Moderate rain 84°/65° 💧 0.593 in 💨 10 mph

Tuesday, Sep 22Tue Sep 22

Light rain 66°/51° 💧 0.175 in 💨 5 mph

Wednesday, Sep 23Wed Sep 23

Overcast 67°/56° 💧 None 💨 5 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Boston

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Boston

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 8:00 AM

PM2.5 Fine particles Good 4,4µg/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 5,3µg/m³

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

O₃ Ozone Good 49,8µg/m³

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

NO₂ Nitrogen dioxide Good 2,2µg/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 Boston

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 5,7Moderate 😊Good

Tomorrow UV 1,2Low 🙂Fair

Friday UV 6,8High 🙂Fair

Saturday UV 5,1Moderate 🙂Fair

Sunday UV 7,0High 😊Good

Monday UV 7,0High —Unavailable

Tuesday UV 6,0High —Unavailable

Hourly UV index today

8:00 AMUV 0,2 9:00 AMUV 0,5 10:00 AMUV 1,1 11:00 AMUV 1,3 12:00 PMUV 2,5 1:00 PMUV 3,1 2:00 PMUV 5,6 3:00 PMUV 5,7 4:00 PMUV 4,0 5:00 PMUV 2,1 6:00 PMUV 0,8 7:00 PMUV 0,1

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 Boston

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · BOSTON, PENNSYLVANIA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 10:00 PM–11:00 PM.

84/100Best-hour score

BEST TIME TONIGHT 10:00 PM–11:00 PM Astronomical darkness: 9:12 PM–5:22 AM

☁ Cloud cover 22% Real hourly forecast for the best viewing hour.

☾ Moonlight 4% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 13° high at the best hour.

✦ Estimated visible meteors 0–1/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min28%

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

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

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

UPCOMING

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

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.

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Forecast data for Boston were last refreshed today at 7:51 AM. The current forecast period extends through 11/09/2026 at 5:00 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.