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

Now · 8:37 AM

Mount Aetna Weather & Hourly Forecast

United States · Pennsylvania · 17067

65°F

Sunny

Feels like: 64°F

💧 Humidity 73% 🌡 Pressure 30.18 inHg 💨 Wind 4 mph 👁 Visibility 19.2 mi ☁ Clouds 0% ☀️ UV index 0.4 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Mount Aetna

Today

9:00 AM

Sunny

65° 💧 None 💨 4 mph H 73%30.18 inHg

12:00 PM

Sunny

73° 💧 None 💨 4 mph H 46%30.18 inHg

3:00 PM

Sunny

76° 💧 None 💨 1 mph H 40%30.15 inHg

6:00 PM

Sunny

75° 💧 None 💨 0 mph H 39%30.15 inHg

9:00 PM

Mostly clear night

65° 💧 None 💨 4 mph H 70%30.21 inHg

Tomorrow

12:00 AM

Clear night

59° 💧 None 💨 1 mph H 85%30.24 inHg

3:00 AM

Clear night

56° 💧 None 💨 0 mph H 89%30.21 inHg

6:00 AM

Mostly cloudy night

56° 💧 None 💨 1 mph H 87%30.24 inHg

9:00 AM

Mostly sunny

66° 💧 None 💨 0 mph H 71%30.27 inHg

12:00 PM

Partly cloudy

77° 💧 None 💨 3 mph H 43%30.27 inHg

3:00 PM

Mostly sunny

81° 💧 None 💨 3 mph H 40%30.21 inHg

6:00 PM

Mostly cloudy

80° 💧 None 💨 3 mph H 46%30.21 inHg

9:00 PM

Mostly cloudy night

69° 💧 None 💨 2 mph H 72%30.21 inHg

Wednesday

12:00 AM

Partly cloudy night

68° 💧 None 💨 5 mph H 74%30.24 inHg

3:00 AM

Mostly cloudy night

68° 💧 None 💨 5 mph H 82%30.21 inHg

6:00 AM

Mostly cloudy night

67° 💧 None 💨 5 mph H 76%30.21 inHg

Today

9:00 AM

Sunny

65° 💧 None 💨 4 mph H 73%30.18 inHg

10:00 AM

Sunny

69° 💧 None 💨 4 mph H 61%30.18 inHg

11:00 AM

Sunny

72° 💧 None 💨 4 mph H 50%30.18 inHg

12:00 PM

Sunny

73° 💧 None 💨 4 mph H 46%30.18 inHg

1:00 PM

Sunny

75° 💧 None 💨 3 mph H 43%30.18 inHg

2:00 PM

Sunny

76° 💧 None 💨 2 mph H 41%30.18 inHg

3:00 PM

Sunny

76° 💧 None 💨 1 mph H 40%30.15 inHg

4:00 PM

Sunny

76° 💧 None 💨 1 mph H 39%30.15 inHg

5:00 PM

Sunny

76° 💧 None 💨 0 mph H 39%30.15 inHg

6:00 PM

Sunny

75° 💧 None 💨 0 mph H 39%30.15 inHg

7:00 PM

Mostly sunny

72° 💧 None 💨 0 mph H 57%30.15 inHg

8:00 PM

Overcast night

67° 💧 None 💨 2 mph H 64%30.18 inHg

9:00 PM

Mostly clear night

65° 💧 None 💨 4 mph H 70%30.21 inHg

10:00 PM

Clear night

62° 💧 None 💨 3 mph H 75%30.21 inHg

11:00 PM

Clear night

61° 💧 None 💨 2 mph H 80%30.24 inHg

Tomorrow

12:00 AM

Clear night

59° 💧 None 💨 1 mph H 85%30.24 inHg

1:00 AM

Clear night

58° 💧 None 💨 1 mph H 88%30.24 inHg

2:00 AM

Clear night

57° 💧 None 💨 1 mph H 90%30.21 inHg

3:00 AM

Clear night

56° 💧 None 💨 0 mph H 89%30.21 inHg

4:00 AM

Mostly cloudy night

56° 💧 None 💨 0 mph H 89%30.24 inHg

5:00 AM

Overcast night

56° 💧 None 💨 0 mph H 88%30.24 inHg

6:00 AM

Mostly cloudy night

56° 💧 None 💨 1 mph H 87%30.24 inHg

7:00 AM

Mostly cloudy

56° 💧 None 💨 1 mph H 86%30.27 inHg

8:00 AM

Mostly sunny

59° 💧 None 💨 1 mph H 84%30.27 inHg

9:00 AM

Mostly sunny

66° 💧 None 💨 0 mph H 71%30.27 inHg

10:00 AM

Mostly sunny

71° 💧 None 💨 0 mph H 55%30.27 inHg

11:00 AM

Partly cloudy

75° 💧 None 💨 2 mph H 48%30.27 inHg

12:00 PM

Partly cloudy

77° 💧 None 💨 3 mph H 43%30.27 inHg

1:00 PM

Partly cloudy

79° 💧 None 💨 3 mph H 42%30.24 inHg

2:00 PM

Mostly sunny

80° 💧 None 💨 3 mph H 41%30.21 inHg

3:00 PM

Mostly sunny

81° 💧 None 💨 3 mph H 40%30.21 inHg

4:00 PM

Mostly sunny

81° 💧 None 💨 3 mph H 40%30.21 inHg

5:00 PM

Mostly cloudy

81° 💧 None 💨 4 mph H 42%30.21 inHg

6:00 PM

Mostly cloudy

80° 💧 None 💨 3 mph H 46%30.21 inHg

7:00 PM

Overcast

76° 💧 None 💨 0 mph H 63%30.21 inHg

8:00 PM

Mostly clear night

72° 💧 None 💨 0 mph H 66%30.21 inHg

9:00 PM

Mostly cloudy night

69° 💧 None 💨 2 mph H 72%30.21 inHg

10:00 PM

Mostly cloudy night

69° 💧 None 💨 5 mph H 68%30.24 inHg

11:00 PM

Mostly cloudy night

69° 💧 None 💨 6 mph H 67%30.24 inHg

Wednesday

12:00 AM

Partly cloudy night

68° 💧 None 💨 5 mph H 74%30.24 inHg

1:00 AM

Partly cloudy night

67° 💧 None 💨 4 mph H 79%30.21 inHg

2:00 AM

Overcast night

66° 💧 None 💨 4 mph H 85%30.21 inHg

3:00 AM

Mostly cloudy night

68° 💧 None 💨 5 mph H 82%30.21 inHg

4:00 AM

Mostly cloudy night

68° 💧 None 💨 5 mph H 79%30.21 inHg

5:00 AM

Mostly cloudy night

67° 💧 None 💨 5 mph H 77%30.21 inHg

6:00 AM

Mostly cloudy night

67° 💧 None 💨 5 mph H 76%30.21 inHg

7:00 AM

Overcast

66° 💧 None 💨 5 mph H 77%30.21 inHg

8:00 AM

Partly cloudy

68° 💧 None 💨 5 mph H 73%30.24 inHg

9:00 AM

Mostly cloudy

72° 💧 None 💨 5 mph H 64%30.21 inHg

10:00 AM

Mostly sunny

75° 💧 None 💨 5 mph H 56%30.21 inHg

11:00 AM

Sunny

79° 💧 None 💨 6 mph H 49%30.21 inHg

12:00 PM

Sunny

83° 💧 None 💨 7 mph H 44%30.18 inHg

1:00 PM

Sunny

86° 💧 None 💨 8 mph H 39%30.15 inHg

2:00 PM

Mostly sunny

88° 💧 None 💨 9 mph H 35%30.09 inHg

3:00 PM

Mostly sunny

89° 💧 None 💨 10 mph H 34%30.06 inHg

4:00 PM

Mostly cloudy

89° 💧 None 💨 11 mph H 35%30.03 inHg

5:00 PM

Mostly cloudy

88° 💧 None 💨 11 mph H 35%30.03 inHg

6:00 PM

Sunny

86° 💧 None 💨 9 mph H 40%30.00 inHg

7:00 PM

Mostly sunny

81° 💧 None 💨 12 mph H 53%30.00 inHg

8:00 PM

Mostly cloudy night

77° 💧 None 💨 13 mph H 59%30.00 inHg

Thursday

5:00 AM

Mostly clear night

71° 💧 None 💨 8 mph H 64%29.94 inHg

8:00 AM

Partly cloudy

71° 💧 None 💨 8 mph H 76%29.94 inHg

11:00 AM

Light rain

77° 💧 None 💨 9 mph H 74%29.94 inHg

2:00 PM

Overcast

80° 💧 None 💨 11 mph H 66%29.88 inHg

5:00 PM

Mostly cloudy

78° 💧 None 💨 8 mph H 74%29.83 inHg

8:00 PM

Light rain

70° 💧 None 💨 4 mph H 98%29.83 inHg

11:00 PM

Overcast night

70° 💧 None 💨 4 mph H 98%29.85 inHg

Friday

2:00 AM

Overcast night

68° 💧 None 💨 8 mph H 96%29.85 inHg

5:00 AM

Partly cloudy night

64° 💧 None 💨 8 mph H 96%29.91 inHg

8:00 AM

Mostly sunny

62° 💧 None 💨 7 mph H 95%29.97 inHg

11:00 AM

Sunny

68° 💧 None 💨 7 mph H 63%30.00 inHg

2:00 PM

Sunny

73° 💧 None 💨 7 mph H 49%29.97 inHg

5:00 PM

Sunny

73° 💧 None 💨 6 mph H 49%29.97 inHg

8:00 PM

Clear night

64° 💧 None 💨 3 mph H 74%30.00 inHg

11:00 PM

Clear night

60° 💧 None 💨 5 mph H 87%30.06 inHg

Saturday

2:00 AM

Clear night

57° 💧 None 💨 4 mph H 81%30.06 inHg

5:00 AM

Clear night

55° 💧 None 💨 4 mph H 85%30.09 inHg

8:00 AM

Sunny

58° 💧 None 💨 6 mph H 81%30.15 inHg

11:00 AM

Sunny

69° 💧 None 💨 6 mph H 60%30.15 inHg

2:00 PM

Overcast

76° 💧 None 💨 6 mph H 51%30.09 inHg

5:00 PM

Overcast

78° 💧 None 💨 7 mph H 53%30.03 inHg

8:00 PM

Clear night

70° 💧 None 💨 6 mph H 73%30.06 inHg

11:00 PM

Mostly clear night

66° 💧 None 💨 7 mph H 84%30.12 inHg

Sunday

2:00 AM

Light rain

65° 💧 None 💨 4 mph H 85%30.09 inHg

8:00 AM

Mostly sunny

66° 💧 None 💨 5 mph H 87%30.09 inHg

2:00 PM

Overcast

66° 💧 None 💨 3 mph H 90%30.09 inHg

8:00 PM

Mostly cloudy night

82° 💧 None 💨 5 mph H 60%30.03 inHg

Monday

2:00 AM

Mostly clear night

75° 💧 None 💨 2 mph H 84%30.00 inHg

8:00 AM

Mostly cloudy

67° 💧 None 💨 6 mph H 97%30.09 inHg

2:00 PM

Overcast

64° 💧 None 💨 4 mph H 83%30.15 inHg

8:00 PM

Mostly cloudy night

78° 💧 None 💨 3 mph H 44%30.15 inHg

Tuesday

2:00 AM

Overcast night

69° 💧 None 💨 6 mph H 64%30.15 inHg

8:00 AM

Sunny

61° 💧 None 💨 6 mph H 74%30.18 inHg

2:00 PM

Partly cloudy

64° 💧 None 💨 5 mph H 77%30.18 inHg

8:00 PM

Overcast night

80° 💧 None 💨 11 mph H 51%30.06 inHg

Wednesday

2:00 AM

Mostly cloudy night

77° 💧 None 💨 11 mph H 69%29.97 inHg

8:00 AM

Light rain

68° 💧 None 💨 11 mph H 90%30.03 inHg

2:00 PM

Mostly sunny

61° 💧 None 💨 7 mph H 85%30.12 inHg

8:00 PM

Clear night

72° 💧 None 💨 10 mph H 46%30.15 inHg

Thursday

2:00 AM

Clear night

63° 💧 None 💨 4 mph H 62%30.18 inHg

8:00 AM

Sunny

54° 💧 None 💨 5 mph H 82%30.24 inHg

2:00 PM

Sunny

54° 💧 None 💨 3 mph H 82%30.27 inHg

8:00 PM

Overcast night

73° 💧 None 💨 6 mph H 35%30.18 inHg

Friday

2:00 AM

Partly cloudy night

64° 💧 None 💨 3 mph H 57%30.15 inHg

8:00 AM

Mostly sunny

57° 💧 None 💨 5 mph H 78%30.15 inHg

2:00 PM

Sunny

57° 💧 None 💨 5 mph H 78%30.15 inHg

8:00 PM

Clear night

74° 💧 None 💨 12 mph H 34%30.00 inHg

Saturday

2:00 AM

Clear night

68° 💧 None 💨 11 mph H 41%29.97 inHg

8:00 AM

Sunny

55° 💧 None 💨 3 mph H 69%30.00 inHg

2:00 PM

Sunny

56° 💧 None 💨 5 mph H 70%30.03 inHg

8:00 PM

Clear night

71° 💧 None 💨 11 mph H 31%29.97 inHg

Sunday

2:00 AM

Clear night

60° 💧 None 💨 5 mph H 44%30.03 inHg

8:00 AM

Sunny

49° 💧 None 💨 2 mph H 71%30.12 inHg

2:00 PM

Sunny

50° 💧 None 💨 1 mph H 73%30.21 inHg

8:00 PM

Clear night

71° 💧 None 💨 6 mph H 27%30.15 inHg

Monday

2:00 AM

Mostly clear night

64° 💧 None 💨 1 mph H 46%30.09 inHg

8:00 AM

Overcast

57° 💧 None 💨 3 mph H 85%30.09 inHg

2:00 PM

Overcast

59° 💧 None 💨 4 mph H 90%30.06 inHg

8:00 PM

Overcast night

78° 💧 None 💨 4 mph H 44%30.00 inHg

Tuesday

2:00 AM

Overcast night

69° 💧 None 💨 1 mph H 50%29.97 inHg

In Mount Aetna and, more broadly, across the state of Pennsylvania: Clear skies are expected to persist throughout the day, with mild to warm temperatures ranging from 54 to 77 degrees Fahrenheit. Morning conditions will be calm, with light winds from the north at around 4 mph and occasional gusts up to 5 mph. As the day progresses into the afternoon, the weather will remain dry and stable, providing a pleasant and comfortable atmosphere. There is no precipitation anticipated, making it a good day for outdoor activities. Overall, residents can expect a quiet and clear day with gentle breezes and mild warmth.

15-Day Weather Outlook for Mount Aetna

TomorrowTomorrow

Overcast 81°/56° 💧 None 💨 4 mph

Wednesday, Sep 9Wed Sep 9

Mostly sunny 89°/66° 💧 None 💨 12 mph

Thursday, Sep 10Thu Sep 10

Light rain 80°/71° 💧 0.056 in 💨 13 mph

Friday, Sep 11Fri Sep 11

Light rain 73°/62° 💧 0.342 in 💨 8 mph

Saturday, Sep 12Sat Sep 12

Overcast 78°/55° 💧 0.000 in 💨 7 mph

Sunday, Sep 13Sun Sep 13

Light rain 70°/65° 💧 0.029 in 💨 7 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 82°/64° 💧 0.061 in 💨 6 mph

Tuesday, Sep 15Tue Sep 15

Mostly cloudy 78°/61° 💧 None 💨 6 mph

Wednesday, Sep 16Wed Sep 16

Light rain 80°/61° 💧 0.061 in 💨 11 mph

Thursday, Sep 17Thu Sep 17

Sunny 72°/54° 💧 None 💨 10 mph

Friday, Sep 18Fri Sep 18

Overcast 73°/57° 💧 None 💨 6 mph

Saturday, Sep 19Sat Sep 19

Sunny 74°/55° 💧 None 💨 12 mph

Sunday, Sep 20Sun Sep 20

Sunny 71°/49° 💧 None 💨 11 mph

Monday, Sep 21Mon Sep 21

Mostly sunny 71°/57° 💧 None 💨 6 mph

Tuesday, Sep 22Tue Sep 22

Overcast 78°/69° 💧 None 💨 4 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Mount Aetna

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Mount Aetna

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 9:00 AM

PM2.5 Fine particles Good 3,5µg/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 6,2µg/m³

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

O₃ Ozone Good 22,4µg/m³

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

NO₂ Nitrogen dioxide Good 9,7µg/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 Mount Aetna

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 6,8High 😊Good

Tomorrow UV 6,3High 😐Moderate

Wednesday UV 6,7High 🙂Fair

Thursday UV 2,4Low 🙂Fair

Friday UV 7,0High 😊Good

Saturday UV 7,0High —Unavailable

Sunday UV 7,0High —Unavailable

Hourly UV index today

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

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

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

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 Mount Aetna

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · MOUNT AETNA, PENNSYLVANIA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 3:00 AM–4:00 AM.

98/100Best-hour score

BEST TIME TONIGHT 3:00 AM–4:00 AM Astronomical darkness: 9:01 PM–5:05 AM

☁ Cloud cover 0% Real hourly forecast for the best viewing hour.

☾ Moonlight 14% Waning Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 66° high at the best hour.

✦ Estimated visible meteors 2–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min78%

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 Mount Aetna were last refreshed today at 8:37 AM. The current forecast period extends through 09/09/2026 at 6:00 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.