What is the weather in Petersham right now?

Current weather in Petersham is overcast clouds.

Where can I find the hourly weather forecast for Petersham?

This page shows hourly weather forecast for Petersham, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Petersham updated regularly?

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

Now · 9:41 AM

Petersham Weather & Hourly Forecast

United States · Massachusetts · 01366

64°F

Overcast

Feels like: 64°F

💧 Humidity 76% 🌡 Pressure 30.21 inHg 💨 Wind 5 mph 👁 Visibility 24.1 mi ☁ Clouds 99% ☀️ UV index 1.2 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Petersham

Today

10:00 AM

Overcast

64° 💧 None 💨 5 mph H 76%30.21 inHg

1:00 PM

Overcast

73° 💧 None 💨 9 mph H 65%30.15 inHg

4:00 PM

Overcast

75° 💧 0.014 in 💨 13 mph H 65%30.06 inHg

7:00 PM

Light rain

68° 💧 0.048 in 💨 10 mph H 87%30.00 inHg

10:00 PM

Overcast night

67° 💧 0.021 in 💨 14 mph H 93%29.94 inHg

Tomorrow

1:00 AM

Light rain

67° 💧 0.167 in 💨 15 mph H 94%29.88 inHg

4:00 AM

Light rain

66° 💧 0.254 in 💨 13 mph H 98%29.85 inHg

7:00 AM

Partly cloudy

65° 💧 0.000 in 💨 10 mph H 99%29.83 inHg

10:00 AM

Mostly cloudy

71° 💧 0.001 in 💨 10 mph H 86%29.83 inHg

1:00 PM

Partly cloudy

78° 💧 None 💨 11 mph H 59%29.80 inHg

4:00 PM

Overcast

77° 💧 0.000 in 💨 12 mph H 58%29.77 inHg

7:00 PM

Mostly cloudy

70° 💧 None 💨 10 mph H 63%29.80 inHg

10:00 PM

Mostly cloudy night

67° 💧 None 💨 8 mph H 67%29.83 inHg

Friday

1:00 AM

Mostly cloudy night

63° 💧 None 💨 7 mph H 72%29.85 inHg

4:00 AM

Partly cloudy night

58° 💧 None 💨 5 mph H 90%29.85 inHg

7:00 AM

Mostly sunny

56° 💧 None 💨 3 mph H 93%29.91 inHg

Today

10:00 AM

Overcast

64° 💧 None 💨 5 mph H 76%30.21 inHg

11:00 AM

Overcast

68° 💧 None 💨 6 mph H 70%30.21 inHg

12:00 PM

Overcast

72° 💧 None 💨 7 mph H 65%30.18 inHg

1:00 PM

Overcast

73° 💧 None 💨 9 mph H 65%30.15 inHg

2:00 PM

Mostly cloudy

74° 💧 None 💨 10 mph H 66%30.12 inHg

3:00 PM

Mostly cloudy

74° 💧 None 💨 11 mph H 67%30.09 inHg

4:00 PM

Overcast

75° 💧 0.000 in 💨 13 mph H 65%30.06 inHg

5:00 PM

Overcast

72° 💧 0.000 in 💨 10 mph H 73%30.06 inHg

6:00 PM

Light rain

70° 💧 0.013 in 💨 10 mph H 82%30.03 inHg

7:00 PM

Light rain

68° 💧 0.005 in 💨 10 mph H 87%30.00 inHg

8:00 PM

Light rain

67° 💧 0.034 in 💨 11 mph H 93%30.00 inHg

9:00 PM

Light rain

67° 💧 0.010 in 💨 12 mph H 95%29.97 inHg

10:00 PM

Overcast night

67° 💧 0.001 in 💨 14 mph H 93%29.94 inHg

11:00 PM

Light rain

67° 💧 0.016 in 💨 14 mph H 94%29.91 inHg

Tomorrow

12:00 AM

Light rain

67° 💧 0.004 in 💨 15 mph H 94%29.88 inHg

1:00 AM

Light rain

67° 💧 0.016 in 💨 15 mph H 94%29.88 inHg

2:00 AM

Light rain

67° 💧 0.019 in 💨 15 mph H 96%29.85 inHg

3:00 AM

Thunderstorms

66° 💧 0.132 in 💨 14 mph H 98%29.83 inHg

4:00 AM

Light rain

66° 💧 0.079 in 💨 13 mph H 98%29.85 inHg

5:00 AM

Moderate rain

65° 💧 0.153 in 💨 11 mph H 98%29.85 inHg

6:00 AM

Light rain

65° 💧 0.022 in 💨 11 mph H 98%29.83 inHg

7:00 AM

Partly cloudy

65° 💧 0.000 in 💨 10 mph H 99%29.83 inHg

8:00 AM

Partly cloudy

67° 💧 None 💨 8 mph H 98%29.85 inHg

9:00 AM

Partly cloudy

69° 💧 0.000 in 💨 8 mph H 94%29.83 inHg

10:00 AM

Mostly cloudy

71° 💧 0.001 in 💨 10 mph H 86%29.83 inHg

11:00 AM

Partly cloudy

74° 💧 None 💨 9 mph H 74%29.83 inHg

12:00 PM

Partly cloudy

77° 💧 None 💨 11 mph H 64%29.83 inHg

1:00 PM

Partly cloudy

78° 💧 None 💨 11 mph H 59%29.80 inHg

2:00 PM

Partly cloudy

79° 💧 None 💨 11 mph H 54%29.80 inHg

3:00 PM

Mostly cloudy

79° 💧 None 💨 12 mph H 54%29.77 inHg

4:00 PM

Overcast

77° 💧 0.000 in 💨 12 mph H 58%29.77 inHg

5:00 PM

Mostly cloudy

74° 💧 0.000 in 💨 10 mph H 66%29.77 inHg

6:00 PM

Partly cloudy

72° 💧 None 💨 11 mph H 64%29.77 inHg

7:00 PM

Mostly cloudy

70° 💧 None 💨 10 mph H 63%29.80 inHg

8:00 PM

Mostly cloudy night

69° 💧 None 💨 9 mph H 64%29.80 inHg

9:00 PM

Overcast night

68° 💧 None 💨 8 mph H 67%29.83 inHg

10:00 PM

Mostly cloudy night

67° 💧 None 💨 8 mph H 67%29.83 inHg

11:00 PM

Mostly cloudy night

66° 💧 None 💨 8 mph H 68%29.83 inHg

Friday

12:00 AM

Mostly cloudy night

65° 💧 None 💨 7 mph H 68%29.83 inHg

1:00 AM

Mostly cloudy night

63° 💧 None 💨 7 mph H 72%29.85 inHg

2:00 AM

Mostly cloudy night

61° 💧 None 💨 6 mph H 78%29.85 inHg

3:00 AM

Mostly clear night

59° 💧 None 💨 6 mph H 85%29.85 inHg

4:00 AM

Partly cloudy night

58° 💧 None 💨 5 mph H 90%29.85 inHg

5:00 AM

Clear night

56° 💧 None 💨 3 mph H 91%29.88 inHg

6:00 AM

Clear night

56° 💧 None 💨 3 mph H 93%29.91 inHg

7:00 AM

Mostly sunny

56° 💧 None 💨 3 mph H 93%29.91 inHg

8:00 AM

Sunny

60° 💧 None 💨 3 mph H 81%29.94 inHg

9:00 AM

Sunny

63° 💧 None 💨 5 mph H 67%29.94 inHg

10:00 AM

Sunny

65° 💧 None 💨 6 mph H 57%29.94 inHg

11:00 AM

Sunny

67° 💧 None 💨 7 mph H 52%29.94 inHg

12:00 PM

Sunny

68° 💧 None 💨 7 mph H 50%29.94 inHg

1:00 PM

Sunny

70° 💧 None 💨 7 mph H 47%29.91 inHg

2:00 PM

Sunny

71° 💧 None 💨 8 mph H 45%29.91 inHg

3:00 PM

Sunny

71° 💧 None 💨 8 mph H 46%29.91 inHg

4:00 PM

Sunny

71° 💧 None 💨 8 mph H 47%29.91 inHg

5:00 PM

Sunny

70° 💧 None 💨 7 mph H 48%29.91 inHg

6:00 PM

Sunny

68° 💧 None 💨 5 mph H 57%29.94 inHg

7:00 PM

Sunny

63° 💧 None 💨 3 mph H 70%29.94 inHg

8:00 PM

Clear night

61° 💧 None 💨 3 mph H 74%29.97 inHg

Saturday

5:00 AM

Clear night

53° 💧 None 💨 1 mph H 97%30.09 inHg

8:00 AM

Mostly cloudy

58° 💧 None 💨 1 mph H 92%30.15 inHg

11:00 AM

Sunny

68° 💧 None 💨 5 mph H 58%30.15 inHg

2:00 PM

Partly cloudy

72° 💧 None 💨 7 mph H 53%30.09 inHg

5:00 PM

Overcast

71° 💧 None 💨 7 mph H 58%30.06 inHg

8:00 PM

Mostly clear night

66° 💧 None 💨 9 mph H 81%30.06 inHg

11:00 PM

Partly cloudy night

63° 💧 None 💨 8 mph H 88%30.09 inHg

Sunday

2:00 AM

Overcast night

63° 💧 None 💨 8 mph H 93%30.03 inHg

5:00 AM

Overcast night

62° 💧 None 💨 8 mph H 97%30.03 inHg

8:00 AM

Overcast

63° 💧 None 💨 7 mph H 94%30.00 inHg

11:00 AM

Overcast

69° 💧 None 💨 7 mph H 90%30.00 inHg

2:00 PM

Overcast

73° 💧 None 💨 5 mph H 83%29.94 inHg

5:00 PM

Light rain

76° 💧 None 💨 6 mph H 75%29.88 inHg

8:00 PM

Clear night

70° 💧 None 💨 5 mph H 87%29.94 inHg

11:00 PM

Mostly clear night

67° 💧 None 💨 9 mph H 90%29.97 inHg

Monday

2:00 AM

Partly cloudy night

61° 💧 None 💨 5 mph H 90%30.00 inHg

5:00 AM

Mostly cloudy night

59° 💧 None 💨 3 mph H 89%30.03 inHg

8:00 AM

Mostly cloudy

63° 💧 None 💨 4 mph H 84%30.09 inHg

11:00 AM

Overcast

69° 💧 None 💨 5 mph H 66%30.12 inHg

2:00 PM

Overcast

73° 💧 None 💨 7 mph H 52%30.09 inHg

5:00 PM

Overcast

72° 💧 None 💨 6 mph H 56%30.09 inHg

8:00 PM

Partly cloudy night

64° 💧 None 💨 1 mph H 81%30.15 inHg

11:00 PM

Clear night

59° 💧 None 💨 3 mph H 90%30.18 inHg

Tuesday

2:00 AM

Mostly clear night

58° 💧 None 💨 3 mph H 79%30.18 inHg

8:00 AM

Mostly cloudy

64° 💧 None 💨 3 mph H 92%30.15 inHg

2:00 PM

Mostly sunny

67° 💧 None 💨 7 mph H 90%30.18 inHg

8:00 PM

Mostly clear night

78° 💧 None 💨 13 mph H 71%30.09 inHg

Wednesday

2:00 AM

Clear night

71° 💧 None 💨 10 mph H 84%30.03 inHg

8:00 AM

Overcast

70° 💧 None 💨 9 mph H 98%30.06 inHg

2:00 PM

Overcast

65° 💧 None 💨 10 mph H 85%30.18 inHg

8:00 PM

Mostly cloudy night

74° 💧 None 💨 5 mph H 43%30.21 inHg

Thursday

2:00 AM

Partly cloudy night

62° 💧 None 💨 5 mph H 82%30.27 inHg

8:00 AM

Mostly cloudy

55° 💧 None 💨 3 mph H 90%30.30 inHg

2:00 PM

Mostly cloudy

57° 💧 None 💨 7 mph H 78%30.36 inHg

8:00 PM

Mostly cloudy night

67° 💧 None 💨 6 mph H 52%30.30 inHg

Friday

2:00 AM

Clear night

58° 💧 None 💨 5 mph H 84%30.24 inHg

8:00 AM

Mostly cloudy

52° 💧 None 💨 3 mph H 100%30.18 inHg

2:00 PM

Mostly cloudy

56° 💧 None 💨 5 mph H 91%30.09 inHg

8:00 PM

Overcast night

68° 💧 None 💨 12 mph H 77%29.91 inHg

Saturday

2:00 AM

Partly cloudy night

65° 💧 None 💨 6 mph H 96%29.80 inHg

8:00 AM

Partly cloudy

62° 💧 None 💨 9 mph H 90%29.77 inHg

2:00 PM

Sunny

53° 💧 None 💨 12 mph H 66%29.88 inHg

8:00 PM

Clear night

63° 💧 None 💨 10 mph H 43%29.85 inHg

Sunday

2:00 AM

Mostly cloudy night

56° 💧 None 💨 7 mph H 57%29.88 inHg

8:00 AM

Mostly sunny

50° 💧 None 💨 6 mph H 74%29.94 inHg

2:00 PM

Light rain

51° 💧 None 💨 5 mph H 70%30.00 inHg

8:00 PM

Overcast night

60° 💧 None 💨 3 mph H 48%29.94 inHg

Monday

2:00 AM

Light rain

55° 💧 None 💨 6 mph H 93%29.91 inHg

8:00 AM

Overcast

56° 💧 None 💨 3 mph H 99%29.85 inHg

2:00 PM

Overcast

57° 💧 None 💨 2 mph H 99%29.88 inHg

8:00 PM

Overcast night

69° 💧 None 💨 1 mph H 81%29.88 inHg

Tuesday

2:00 AM

Partly cloudy night

64° 💧 None 💨 3 mph H 99%29.97 inHg

8:00 AM

Overcast

61° 💧 None 💨 5 mph H 96%30.03 inHg

2:00 PM

Mostly cloudy

60° 💧 None 💨 5 mph H 89%30.09 inHg

8:00 PM

Overcast night

71° 💧 None 💨 2 mph H 57%30.09 inHg

Wednesday

2:00 AM

Mostly cloudy night

61° 💧 None 💨 5 mph H 83%30.09 inHg

8:00 AM

Sunny

54° 💧 None 💨 5 mph H 90%30.12 inHg

2:00 PM

Sunny

55° 💧 None 💨 4 mph H 85%30.15 inHg

8:00 PM

Mostly clear night

70° 💧 None 💨 4 mph H 52%30.09 inHg

Thursday

2:00 AM

Clear night

60° 💧 None 💨 2 mph H 83%30.09 inHg

In Petersham and, more broadly, across the state of Massachusetts: This morning, the sky will be mostly cloudy with mild temperatures around 58 degrees. Winds will be coming from the south at up to 11 mph, with gusts reaching 33 mph. As the day progresses, temperatures are expected to warm to a high of approximately 77 degrees. There is a possibility of light rain, with rainfall totals around 0.02 inches, and the highest chance of rain occurring in the afternoon with about a 44% probability. Winds will remain moderate, continuing from the south, and could gust at times, especially during rain showers. Overall, expect a warm and partly cloudy day with some chances for brief, light rain.

15-Day Weather Outlook for Petersham

TomorrowTomorrow

Thunderstorms 79°/65° 💧 None 💨 15 mph

Friday, Sep 11Fri Sep 11

Mostly cloudy 71°/56° 💧 None 💨 9 mph

Saturday, Sep 12Sat Sep 12

Mostly cloudy 72°/53° 💧 0.302 in 💨 7 mph

Sunday, Sep 13Sun Sep 13

Light rain 76°/62° 💧 0.136 in 💨 9 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 73°/59° 💧 0.004 in 💨 9 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 67°/58° 💧 0.178 in 💨 7 mph

Wednesday, Sep 16Wed Sep 16

Overcast 78°/65° 💧 0.022 in 💨 13 mph

Thursday, Sep 17Thu Sep 17

Mostly cloudy 74°/55° 💧 0.007 in 💨 7 mph

Friday, Sep 18Fri Sep 18

Mostly cloudy 67°/52° 💧 None 💨 6 mph

Saturday, Sep 19Sat Sep 19

Partly cloudy 68°/53° 💧 0.045 in 💨 12 mph

Sunday, Sep 20Sun Sep 20

Mostly cloudy 63°/50° 💧 0.001 in 💨 10 mph

Monday, Sep 21Mon Sep 21

Light rain 60°/55° 💧 0.363 in 💨 6 mph

Tuesday, Sep 22Tue Sep 22

Overcast 69°/60° 💧 0.004 in 💨 5 mph

Wednesday, Sep 23Wed Sep 23

Overcast 71°/54° 💧 0.001 in 💨 5 mph

Thursday, Sep 24Thu Sep 24

Mostly sunny 70°/60° 💧 None 💨 4 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Petersham

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Petersham

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 10:00 AM

PM2.5 Fine particles Fair 16,2µg/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 Fair 22,1µg/m³

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

O₃ Ozone Good 31,6µg/m³

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

NO₂ Nitrogen dioxide Good 17,0µg/m³

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

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Petersham

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 4,8Moderate 🙂Fair

Tomorrow UV 6,7High 🙂Fair

Friday UV 6,0High 🙂Fair

Saturday UV 6,4High 😐Moderate

Sunday UV 4,0Moderate 🙂Fair

Monday UV 5,0Moderate —Unavailable

Tuesday UV 3,0Moderate —Unavailable

Hourly UV index today

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

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

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 Petersham

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · PETERSHAM, MASSACHUSETTS

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

27/100Best-hour score

No good viewing window tonight Astronomical darkness exists, but current sky conditions are unfavorable.

☁ Cloud cover 96% 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 19° high at the best hour.

✦ Estimated visible meteors Poor visibility Meteor activity may occur above the clouds, but local viewing conditions are not suitable.

Chance ≥1 meteor in 30 minNot meaningful

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.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for Petersham were last refreshed today at 9:41 AM. The current forecast period extends through 11/09/2026 at 7:00 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.