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

Now · 2:43 PM

Llewellyn Weather & Hourly Forecast

United States · Pennsylvania

82°F

Mostly sunny

Feels like: 81°F

💧 Humidity 57% 🌡 Pressure 30.06 inHg 💨 Wind 10 mph 👁 Visibility 6.7 mi ☁ Clouds 22% ☀️ UV index 4.3 · Moderate 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Llewellyn

Today

3:00 PM

Mostly sunny

82° 💧 0.004 in 💨 10 mph H 57%30.06 inHg

6:00 PM

Partly cloudy

80° 💧 None 💨 9 mph H 58%30.00 inHg

9:00 PM

Partly cloudy night

73° 💧 None 💨 8 mph H 70%29.97 inHg

Tomorrow

12:00 AM

Partly cloudy night

73° 💧 0.099 in 💨 11 mph H 69%29.97 inHg

3:00 AM

Light rain

68° 💧 0.209 in 💨 9 mph H 94%29.91 inHg

6:00 AM

Partly cloudy night

68° 💧 0.000 in 💨 8 mph H 99%29.91 inHg

9:00 AM

Partly cloudy

71° 💧 0.001 in 💨 8 mph H 94%29.94 inHg

12:00 PM

Sunny

78° 💧 None 💨 7 mph H 63%29.94 inHg

3:00 PM

Partly cloudy

80° 💧 None 💨 8 mph H 57%29.91 inHg

6:00 PM

Partly cloudy

78° 💧 None 💨 5 mph H 62%29.88 inHg

9:00 PM

Mostly cloudy night

72° 💧 None 💨 6 mph H 72%29.91 inHg

Friday

12:00 AM

Overcast night

70° 💧 0.001 in 💨 6 mph H 75%29.91 inHg

3:00 AM

Overcast night

68° 💧 None 💨 6 mph H 83%29.91 inHg

6:00 AM

Overcast night

65° 💧 0.000 in 💨 5 mph H 84%29.94 inHg

9:00 AM

Partly cloudy

66° 💧 None 💨 7 mph H 72%30.00 inHg

12:00 PM

Partly cloudy

72° 💧 None 💨 4 mph H 51%30.00 inHg

Today

3:00 PM

Mostly sunny

82° 💧 0.001 in 💨 10 mph H 57%30.06 inHg

4:00 PM

Mostly sunny

82° 💧 0.003 in 💨 11 mph H 53%30.03 inHg

5:00 PM

Mostly sunny

83° 💧 0.000 in 💨 12 mph H 52%30.00 inHg

6:00 PM

Partly cloudy

80° 💧 None 💨 9 mph H 58%30.00 inHg

7:00 PM

Partly cloudy

77° 💧 None 💨 8 mph H 63%30.00 inHg

8:00 PM

Clear night

75° 💧 None 💨 7 mph H 66%29.97 inHg

9:00 PM

Partly cloudy night

73° 💧 None 💨 8 mph H 70%29.97 inHg

10:00 PM

Mostly clear night

73° 💧 None 💨 9 mph H 73%29.97 inHg

11:00 PM

Mostly clear night

73° 💧 None 💨 10 mph H 71%29.97 inHg

Tomorrow

12:00 AM

Partly cloudy night

73° 💧 None 💨 11 mph H 69%29.97 inHg

1:00 AM

Light rain

69° 💧 0.041 in 💨 10 mph H 82%29.94 inHg

2:00 AM

Light rain

68° 💧 0.058 in 💨 10 mph H 90%29.91 inHg

3:00 AM

Light rain

68° 💧 0.085 in 💨 9 mph H 94%29.91 inHg

4:00 AM

Moderate rain

68° 💧 0.124 in 💨 8 mph H 97%29.91 inHg

5:00 AM

Partly cloudy night

69° 💧 0.000 in 💨 9 mph H 98%29.91 inHg

6:00 AM

Partly cloudy night

68° 💧 0.000 in 💨 8 mph H 99%29.91 inHg

7:00 AM

Mostly cloudy

68° 💧 0.000 in 💨 8 mph H 99%29.94 inHg

8:00 AM

Partly cloudy

69° 💧 None 💨 8 mph H 98%29.94 inHg

9:00 AM

Partly cloudy

71° 💧 0.001 in 💨 8 mph H 94%29.94 inHg

10:00 AM

Mostly sunny

73° 💧 0.000 in 💨 8 mph H 83%29.94 inHg

11:00 AM

Sunny

75° 💧 None 💨 7 mph H 72%29.94 inHg

12:00 PM

Sunny

78° 💧 None 💨 7 mph H 63%29.94 inHg

1:00 PM

Mostly sunny

79° 💧 None 💨 7 mph H 56%29.91 inHg

2:00 PM

Mostly cloudy

80° 💧 None 💨 7 mph H 55%29.91 inHg

3:00 PM

Partly cloudy

80° 💧 None 💨 8 mph H 57%29.91 inHg

4:00 PM

Mostly sunny

80° 💧 None 💨 8 mph H 56%29.88 inHg

5:00 PM

Partly cloudy

80° 💧 None 💨 7 mph H 54%29.88 inHg

6:00 PM

Partly cloudy

78° 💧 None 💨 5 mph H 62%29.88 inHg

7:00 PM

Mostly cloudy

74° 💧 None 💨 4 mph H 72%29.88 inHg

8:00 PM

Overcast night

72° 💧 None 💨 3 mph H 74%29.88 inHg

9:00 PM

Mostly cloudy night

72° 💧 None 💨 6 mph H 72%29.91 inHg

10:00 PM

Overcast night

72° 💧 None 💨 6 mph H 69%29.91 inHg

11:00 PM

Overcast night

71° 💧 None 💨 6 mph H 72%29.91 inHg

Friday

12:00 AM

Overcast night

70° 💧 None 💨 6 mph H 75%29.91 inHg

1:00 AM

Overcast night

70° 💧 None 💨 7 mph H 77%29.94 inHg

2:00 AM

Overcast night

69° 💧 0.001 in 💨 7 mph H 81%29.91 inHg

3:00 AM

Overcast night

68° 💧 None 💨 6 mph H 83%29.91 inHg

4:00 AM

Overcast night

67° 💧 None 💨 5 mph H 84%29.91 inHg

5:00 AM

Overcast night

66° 💧 None 💨 6 mph H 83%29.91 inHg

6:00 AM

Overcast night

65° 💧 0.000 in 💨 5 mph H 84%29.94 inHg

7:00 AM

Overcast

64° 💧 None 💨 6 mph H 86%29.97 inHg

8:00 AM

Mostly cloudy

64° 💧 None 💨 7 mph H 80%30.00 inHg

9:00 AM

Partly cloudy

66° 💧 None 💨 7 mph H 72%30.00 inHg

10:00 AM

Mostly cloudy

68° 💧 None 💨 6 mph H 64%30.00 inHg

11:00 AM

Mostly cloudy

70° 💧 None 💨 6 mph H 56%30.00 inHg

12:00 PM

Partly cloudy

72° 💧 None 💨 4 mph H 51%30.00 inHg

1:00 PM

Sunny

74° 💧 None 💨 5 mph H 47%30.00 inHg

2:00 PM

Sunny

74° 💧 None 💨 6 mph H 44%30.00 inHg

3:00 PM

Sunny

75° 💧 None 💨 6 mph H 42%29.97 inHg

4:00 PM

Sunny

75° 💧 None 💨 6 mph H 41%29.97 inHg

5:00 PM

Sunny

74° 💧 None 💨 6 mph H 42%29.97 inHg

6:00 PM

Sunny

72° 💧 None 💨 4 mph H 52%29.97 inHg

7:00 PM

Sunny

67° 💧 None 💨 3 mph H 65%30.00 inHg

8:00 PM

Clear night

64° 💧 None 💨 3 mph H 69%30.00 inHg

9:00 PM

Clear night

62° 💧 None 💨 4 mph H 74%30.03 inHg

10:00 PM

Clear night

61° 💧 None 💨 5 mph H 75%30.06 inHg

11:00 PM

Clear night

60° 💧 None 💨 5 mph H 76%30.06 inHg

Saturday

12:00 AM

Clear night

59° 💧 None 💨 5 mph H 77%30.06 inHg

1:00 AM

Clear night

58° 💧 None 💨 4 mph H 79%30.06 inHg

2:00 AM

Mostly clear night

57° 💧 None 💨 4 mph H 80%30.06 inHg

3:00 AM

Mostly cloudy night

56° 💧 None 💨 4 mph H 82%30.06 inHg

4:00 AM

Overcast night

56° 💧 None 💨 4 mph H 81%30.06 inHg

5:00 AM

Overcast night

56° 💧 None 💨 5 mph H 78%30.06 inHg

6:00 AM

Overcast night

56° 💧 None 💨 5 mph H 76%30.09 inHg

7:00 AM

Overcast

56° 💧 None 💨 4 mph H 77%30.12 inHg

8:00 AM

Overcast

59° 💧 None 💨 5 mph H 74%30.12 inHg

11:00 AM

Overcast

68° 💧 None 💨 8 mph H 67%30.09 inHg

2:00 PM

Overcast

73° 💧 None 💨 10 mph H 70%30.06 inHg

5:00 PM

Overcast

73° 💧 None 💨 9 mph H 77%30.00 inHg

8:00 PM

Light rain

68° 💧 None 💨 10 mph H 92%30.03 inHg

11:00 PM

Moderate rain

66° 💧 None 💨 6 mph H 98%30.06 inHg

Sunday

2:00 AM

Overcast night

66° 💧 None 💨 5 mph H 100%30.00 inHg

5:00 AM

Overcast night

67° 💧 None 💨 4 mph H 100%29.97 inHg

8:00 AM

Overcast

68° 💧 None 💨 4 mph H 100%30.00 inHg

11:00 AM

Light rain

73° 💧 None 💨 7 mph H 90%30.03 inHg

2:00 PM

Sunny

79° 💧 None 💨 7 mph H 65%29.97 inHg

5:00 PM

Mostly sunny

80° 💧 None 💨 7 mph H 63%29.94 inHg

8:00 PM

Clear night

72° 💧 None 💨 3 mph H 84%30.00 inHg

11:00 PM

Partly cloudy night

70° 💧 None 💨 8 mph H 88%30.06 inHg

Monday

2:00 AM

Mostly cloudy night

64° 💧 None 💨 6 mph H 95%30.09 inHg

5:00 AM

Mostly clear night

59° 💧 None 💨 5 mph H 91%30.09 inHg

8:00 AM

Partly cloudy

61° 💧 None 💨 5 mph H 87%30.18 inHg

11:00 AM

Mostly sunny

71° 💧 None 💨 2 mph H 61%30.18 inHg

2:00 PM

Mostly cloudy

77° 💧 None 💨 3 mph H 49%30.15 inHg

5:00 PM

Sunny

77° 💧 None 💨 4 mph H 46%30.12 inHg

8:00 PM

Mostly cloudy night

68° 💧 None 💨 0 mph H 71%30.12 inHg

11:00 PM

Partly cloudy night

65° 💧 None 💨 3 mph H 80%30.15 inHg

Tuesday

2:00 AM

Clear night

65° 💧 None 💨 4 mph H 74%30.15 inHg

8:00 AM

Mostly cloudy

67° 💧 None 💨 6 mph H 95%30.12 inHg

2:00 PM

Overcast

70° 💧 None 💨 7 mph H 100%30.15 inHg

8:00 PM

Light rain

80° 💧 None 💨 9 mph H 69%30.09 inHg

Wednesday

2:00 AM

Mostly clear night

75° 💧 None 💨 7 mph H 86%30.06 inHg

8:00 AM

Moderate rain

69° 💧 None 💨 4 mph H 99%30.12 inHg

2:00 PM

Mostly cloudy

66° 💧 None 💨 7 mph H 98%30.18 inHg

8:00 PM

Overcast night

70° 💧 None 💨 8 mph H 77%30.18 inHg

Thursday

2:00 AM

Light rain

67° 💧 None 💨 6 mph H 94%30.21 inHg

8:00 AM

Overcast

64° 💧 None 💨 8 mph H 97%30.24 inHg

2:00 PM

Overcast

61° 💧 None 💨 8 mph H 84%30.27 inHg

8:00 PM

Overcast night

66° 💧 None 💨 5 mph H 69%30.24 inHg

Friday

2:00 AM

Overcast night

65° 💧 None 💨 5 mph H 80%30.21 inHg

8:00 AM

Overcast

62° 💧 None 💨 5 mph H 93%30.15 inHg

2:00 PM

Overcast

63° 💧 None 💨 5 mph H 93%30.09 inHg

8:00 PM

Overcast night

77° 💧 None 💨 10 mph H 62%29.97 inHg

Saturday

2:00 AM

Partly cloudy night

72° 💧 None 💨 9 mph H 78%29.88 inHg

8:00 AM

Sunny

64° 💧 None 💨 11 mph H 91%29.94 inHg

2:00 PM

Mostly sunny

55° 💧 None 💨 11 mph H 76%30.00 inHg

8:00 PM

Partly cloudy night

67° 💧 None 💨 8 mph H 51%29.97 inHg

Sunday

2:00 AM

Mostly clear night

59° 💧 None 💨 3 mph H 69%29.97 inHg

8:00 AM

Overcast

54° 💧 None 💨 3 mph H 75%29.97 inHg

2:00 PM

Overcast

56° 💧 None 💨 5 mph H 76%29.97 inHg

8:00 PM

Mostly cloudy night

72° 💧 None 💨 8 mph H 59%29.88 inHg

Monday

2:00 AM

Moderate rain

68° 💧 None 💨 6 mph H 95%29.85 inHg

8:00 AM

Mostly cloudy

68° 💧 None 💨 6 mph H 99%29.83 inHg

2:00 PM

Overcast

69° 💧 None 💨 6 mph H 98%29.88 inHg

8:00 PM

Light rain

76° 💧 None 💨 8 mph H 76%29.91 inHg

Tuesday

2:00 AM

Mostly cloudy night

70° 💧 None 💨 3 mph H 80%30.00 inHg

8:00 AM

Overcast

62° 💧 None 💨 6 mph H 94%30.06 inHg

2:00 PM

Moderate rain

62° 💧 None 💨 5 mph H 91%30.09 inHg

8:00 PM

Light rain

64° 💧 None 💨 5 mph H 96%30.12 inHg

Wednesday

2:00 AM

Overcast night

59° 💧 None 💨 4 mph H 96%30.12 inHg

8:00 AM

Mostly sunny

56° 💧 None 💨 5 mph H 95%30.12 inHg

2:00 PM

Mostly sunny

56° 💧 None 💨 4 mph H 95%30.15 inHg

8:00 PM

Partly cloudy night

73° 💧 None 💨 3 mph H 56%30.12 inHg

Thursday

2:00 AM

Mostly clear night

62° 💧 None 💨 3 mph H 80%30.09 inHg

In Llewellyn and, more broadly, across the state of Pennsylvania: The late afternoon and evening will feature a mix of sun and clouds with temperatures remaining mild to warm, ranging from the mid-70s to the mid-80s. A brief chance of rain exists, with an expected accumulation of around 0.05 inches, and the probability of rain reaching nearly 100 percent. Winds will be light from the southwest, averaging around 7 mph, with gusts up to 18 mph. Overall, expect a warm and partly cloudy evening with a slight possibility of a quick passing shower.

15-Day Weather Outlook for Llewellyn

TomorrowTomorrow

Mostly sunny 79°/68° 💧 None 💨 11 mph

Friday, Sep 11Fri Sep 11

Overcast 74°/60° 💧 None 💨 8 mph

Saturday, Sep 12Sat Sep 12

Overcast 73°/57° 💧 0.423 in 💨 10 mph

Sunday, Sep 13Sun Sep 13

Moderate rain 80°/66° 💧 0.344 in 💨 10 mph

Monday, Sep 14Mon Sep 14

Partly cloudy 77°/59° 💧 None 💨 8 mph

Tuesday, Sep 15Tue Sep 15

Overcast 70°/65° 💧 0.001 in 💨 7 mph

Wednesday, Sep 16Wed Sep 16

Moderate rain 80°/66° 💧 0.240 in 💨 9 mph

Thursday, Sep 17Thu Sep 17

Light rain 70°/61° 💧 0.113 in 💨 8 mph

Friday, Sep 18Fri Sep 18

Overcast 66°/62° 💧 0.008 in 💨 5 mph

Saturday, Sep 19Sat Sep 19

Partly cloudy 77°/55° 💧 0.023 in 💨 11 mph

Sunday, Sep 20Sun Sep 20

Overcast 67°/54° 💧 0.014 in 💨 8 mph

Monday, Sep 21Mon Sep 21

Moderate rain 72°/68° 💧 0.106 in 💨 8 mph

Tuesday, Sep 22Tue Sep 22

Moderate rain 76°/62° 💧 0.091 in 💨 8 mph

Wednesday, Sep 23Wed Sep 23

Light rain 64°/56° 💧 0.232 in 💨 5 mph

Thursday, Sep 24Thu Sep 24

Partly cloudy 73°/62° 💧 None 💨 3 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Llewellyn

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Llewellyn

Hourly forecast · Updated every 2 hours

Moderate

Nearest forecast value 3:00 PM

PM2.5 Fine particles Good 6,9µg/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 8,3µg/m³

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

O₃ Ozone Moderate 106,1µg/m³

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

NO₂ Nitrogen dioxide Good 1,7µg/m³

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

Sensitive people should reduce strenuous and prolonged outdoor exertion.

UV & HEALTH

UV, Sun & Health Outlook in Llewellyn

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 6,2High 😐Moderate

Tomorrow UV 5,3Moderate 🙂Fair

Friday UV 6,6High 🙂Fair

Saturday UV 6,5High 🙂Fair

Sunday UV 5,0Moderate 🙂Fair

Monday UV 6,0High —Unavailable

Tuesday UV 7,0High —Unavailable

Hourly UV index today

3:00 PMUV 5,0 4:00 PMUV 3,4 5:00 PMUV 1,7 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.

Caution for sensitive people

People with respiratory or cardiovascular conditions should reduce prolonged outdoor exertion.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

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 Llewellyn

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · LLEWELLYN, PENNSYLVANIA

Tonight's Stargazing & Shooting Stars

Good observing conditions. Best local viewing window: 11:00 PM–12:00 AM.

78/100Best-hour score

BEST TIME TONIGHT 11:00 PM–12:00 AM Astronomical darkness: 8:58 PM–5:07 AM

☁ Cloud cover 31% Real hourly forecast for the best viewing hour.

☾ Moonlight 3% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 25° high at the best hour.

✦ Estimated visible meteors 0–2/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min42%

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 Llewellyn were last refreshed today at 2:43 PM. The current forecast period extends through 11/09/2026 at 12:00 PM. 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.