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Current weather in Grantley is overcast clouds.

Where can I find the hourly weather forecast for Grantley?

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

Is the weather forecast for Grantley updated regularly?

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

Now · 1:13 AM

Grantley Weather & Hourly Forecast

United States · Pennsylvania · 17403

73°F

Overcast night

Feels like: 73°F

💧 Humidity 83% 🌡 Pressure 29.88 inHg 💨 Wind 3 mph 👁 Visibility 6.2 mi ☁ Clouds 98% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:38 AM 🌇 Sunset 7:33 PM

Hourly Forecast for Grantley

Today

2:00 AM

Overcast night

73° 💧 None 💨 3 mph H 83%29.88 inHg

5:00 AM

Mostly cloudy night

70° 💧 None 💨 4 mph H 91%29.85 inHg

8:00 AM

Mostly cloudy

71° 💧 None 💨 2 mph H 89%29.88 inHg

11:00 AM

Overcast

76° 💧 None 💨 3 mph H 70%29.88 inHg

2:00 PM

Overcast

71° 💧 None 💨 6 mph H 55%29.85 inHg

5:00 PM

Overcast

75° 💧 None 💨 3 mph H 63%29.83 inHg

8:00 PM

Mostly cloudy night

71° 💧 None 💨 1 mph H 75%29.83 inHg

11:00 PM

Partly cloudy night

67° 💧 None 💨 5 mph H 77%29.91 inHg

Tomorrow

2:00 AM

Mostly clear night

63° 💧 None 💨 4 mph H 85%29.91 inHg

5:00 AM

Clear night

61° 💧 None 💨 5 mph H 89%29.94 inHg

8:00 AM

Sunny

63° 💧 None 💨 5 mph H 83%30.00 inHg

11:00 AM

Sunny

69° 💧 None 💨 9 mph H 64%30.00 inHg

2:00 PM

Sunny

70° 💧 None 💨 8 mph H 53%29.97 inHg

5:00 PM

Mostly cloudy

76° 💧 None 💨 4 mph H 55%29.97 inHg

8:00 PM

Overcast night

71° 💧 None 💨 2 mph H 57%30.03 inHg

11:00 PM

Mostly cloudy night

62° 💧 None 💨 2 mph H 76%30.06 inHg

Today

2:00 AM

Overcast night

73° 💧 None 💨 3 mph H 83%29.88 inHg

3:00 AM

Overcast night

72° 💧 None 💨 3 mph H 85%29.88 inHg

4:00 AM

Overcast night

71° 💧 None 💨 4 mph H 88%29.85 inHg

5:00 AM

Mostly cloudy night

70° 💧 None 💨 4 mph H 91%29.85 inHg

6:00 AM

Mostly cloudy night

69° 💧 None 💨 4 mph H 94%29.85 inHg

7:00 AM

Mostly cloudy

69° 💧 None 💨 4 mph H 95%29.88 inHg

8:00 AM

Mostly cloudy

71° 💧 None 💨 2 mph H 89%29.88 inHg

9:00 AM

Overcast

73° 💧 None 💨 2 mph H 81%29.88 inHg

10:00 AM

Overcast

74° 💧 None 💨 4 mph H 74%29.88 inHg

11:00 AM

Overcast

76° 💧 None 💨 3 mph H 70%29.88 inHg

12:00 PM

Overcast

77° 💧 None 💨 5 mph H 62%29.88 inHg

1:00 PM

Overcast

77° 💧 None 💨 6 mph H 57%29.85 inHg

2:00 PM

Overcast

71° 💧 None 💨 6 mph H 55%29.85 inHg

3:00 PM

Overcast

73° 💧 None 💨 5 mph H 56%29.85 inHg

4:00 PM

Overcast

74° 💧 None 💨 5 mph H 61%29.83 inHg

5:00 PM

Overcast

75° 💧 None 💨 3 mph H 63%29.83 inHg

6:00 PM

Overcast

74° 💧 None 💨 2 mph H 67%29.83 inHg

7:00 PM

Overcast

73° 💧 None 💨 1 mph H 72%29.83 inHg

8:00 PM

Mostly cloudy night

71° 💧 None 💨 1 mph H 75%29.83 inHg

9:00 PM

Mostly cloudy night

71° 💧 None 💨 9 mph H 67%29.88 inHg

10:00 PM

Mostly cloudy night

69° 💧 None 💨 7 mph H 70%29.91 inHg

11:00 PM

Partly cloudy night

67° 💧 None 💨 5 mph H 77%29.91 inHg

Tomorrow

12:00 AM

Partly cloudy night

64° 💧 None 💨 5 mph H 81%29.94 inHg

1:00 AM

Mostly clear night

63° 💧 None 💨 5 mph H 83%29.94 inHg

2:00 AM

Mostly clear night

63° 💧 None 💨 4 mph H 85%29.91 inHg

3:00 AM

Clear night

62° 💧 None 💨 4 mph H 87%29.91 inHg

4:00 AM

Clear night

62° 💧 None 💨 4 mph H 88%29.94 inHg

5:00 AM

Clear night

61° 💧 None 💨 5 mph H 89%29.94 inHg

6:00 AM

Clear night

61° 💧 None 💨 5 mph H 91%29.94 inHg

7:00 AM

Sunny

61° 💧 None 💨 4 mph H 92%29.97 inHg

8:00 AM

Sunny

63° 💧 None 💨 5 mph H 83%30.00 inHg

9:00 AM

Sunny

66° 💧 None 💨 7 mph H 75%30.00 inHg

10:00 AM

Sunny

67° 💧 None 💨 9 mph H 69%30.00 inHg

11:00 AM

Sunny

69° 💧 None 💨 9 mph H 64%30.00 inHg

12:00 PM

Sunny

71° 💧 None 💨 8 mph H 59%30.00 inHg

1:00 PM

Sunny

73° 💧 None 💨 8 mph H 56%30.00 inHg

2:00 PM

Sunny

70° 💧 None 💨 8 mph H 53%29.97 inHg

3:00 PM

Partly cloudy

79° 💧 None 💨 7 mph H 50%29.97 inHg

4:00 PM

Mostly cloudy

78° 💧 None 💨 7 mph H 49%29.97 inHg

5:00 PM

Mostly cloudy

76° 💧 None 💨 4 mph H 55%29.97 inHg

6:00 PM

Overcast

74° 💧 None 💨 3 mph H 55%30.00 inHg

7:00 PM

Overcast

72° 💧 None 💨 2 mph H 56%30.00 inHg

8:00 PM

Overcast night

71° 💧 None 💨 2 mph H 57%30.03 inHg

9:00 PM

Overcast night

70° 💧 None 💨 3 mph H 60%30.03 inHg

10:00 PM

Overcast night

67° 💧 None 💨 2 mph H 67%30.06 inHg

11:00 PM

Mostly cloudy night

62° 💧 None 💨 2 mph H 76%30.06 inHg

Monday

12:00 AM

Mostly cloudy night

60° 💧 None 💨 3 mph H 79%30.09 inHg

1:00 AM

Partly cloudy night

59° 💧 None 💨 3 mph H 80%30.09 inHg

2:00 AM

Partly cloudy night

58° 💧 None 💨 3 mph H 82%30.09 inHg

3:00 AM

Clear night

57° 💧 None 💨 3 mph H 85%30.12 inHg

4:00 AM

Clear night

57° 💧 None 💨 3 mph H 88%30.12 inHg

5:00 AM

Clear night

56° 💧 None 💨 4 mph H 91%30.12 inHg

6:00 AM

Clear night

56° 💧 None 💨 4 mph H 94%30.15 inHg

7:00 AM

Sunny

55° 💧 None 💨 3 mph H 95%30.18 inHg

8:00 AM

Sunny

60° 💧 None 💨 3 mph H 87%30.18 inHg

9:00 AM

Sunny

65° 💧 None 💨 3 mph H 80%30.18 inHg

10:00 AM

Sunny

69° 💧 None 💨 4 mph H 74%30.21 inHg

11:00 AM

Sunny

72° 💧 None 💨 4 mph H 67%30.21 inHg

12:00 PM

Sunny

74° 💧 None 💨 5 mph H 62%30.18 inHg

1:00 PM

Sunny

76° 💧 None 💨 5 mph H 54%30.18 inHg

2:00 PM

Sunny

78° 💧 None 💨 4 mph H 48%30.15 inHg

3:00 PM

Sunny

79° 💧 None 💨 3 mph H 46%30.15 inHg

4:00 PM

Sunny

79° 💧 None 💨 3 mph H 45%30.15 inHg

5:00 PM

Sunny

78° 💧 None 💨 3 mph H 46%30.15 inHg

6:00 PM

Sunny

77° 💧 None 💨 3 mph H 56%30.15 inHg

7:00 PM

Sunny

70° 💧 None 💨 4 mph H 65%30.18 inHg

8:00 PM

Clear night

66° 💧 None 💨 3 mph H 68%30.18 inHg

9:00 PM

Clear night

64° 💧 None 💨 2 mph H 70%30.21 inHg

10:00 PM

Clear night

63° 💧 None 💨 2 mph H 71%30.21 inHg

11:00 PM

Clear night

62° 💧 None 💨 1 mph H 74%30.24 inHg

Tuesday

12:00 AM

Mostly clear night

62° 💧 None 💨 2 mph H 75%30.24 inHg

1:00 AM

Clear night

61° 💧 None 💨 3 mph H 76%30.24 inHg

2:00 AM

Clear night

61° 💧 None 💨 1 mph H 78%30.24 inHg

3:00 AM

Mostly clear night

60° 💧 None 💨 4 mph H 80%30.24 inHg

4:00 AM

Clear night

59° 💧 None 💨 2 mph H 84%30.24 inHg

5:00 AM

Partly cloudy night

59° 💧 None 💨 2 mph H 85%30.27 inHg

6:00 AM

Mostly cloudy night

58° 💧 None 💨 2 mph H 88%30.27 inHg

7:00 AM

Mostly cloudy

59° 💧 None 💨 2 mph H 88%30.27 inHg

8:00 AM

Mostly cloudy

63° 💧 None 💨 1 mph H 81%30.27 inHg

9:00 AM

Overcast

68° 💧 None 💨 3 mph H 73%30.27 inHg

10:00 AM

Mostly cloudy

72° 💧 None 💨 2 mph H 67%30.30 inHg

11:00 AM

Overcast

76° 💧 None 💨 3 mph H 62%30.30 inHg

12:00 PM

Mostly cloudy

79° 💧 None 💨 4 mph H 56%30.27 inHg

1:00 PM

Mostly cloudy

80° 💧 None 💨 6 mph H 52%30.24 inHg

2:00 PM

Mostly cloudy

81° 💧 None 💨 6 mph H 50%30.24 inHg

3:00 PM

Overcast

82° 💧 None 💨 5 mph H 50%30.21 inHg

4:00 PM

Overcast

82° 💧 None 💨 5 mph H 49%30.21 inHg

5:00 PM

Overcast

83° 💧 None 💨 5 mph H 48%30.18 inHg

6:00 PM

Overcast

81° 💧 None 💨 5 mph H 60%30.18 inHg

7:00 PM

Overcast

75° 💧 None 💨 7 mph H 70%30.21 inHg

8:00 PM

Overcast night

70° 💧 None 💨 7 mph H 77%30.21 inHg

9:00 PM

Overcast night

69° 💧 None 💨 6 mph H 77%30.21 inHg

10:00 PM

Overcast night

70° 💧 None 💨 7 mph H 73%30.24 inHg

11:00 PM

Overcast night

70° 💧 None 💨 9 mph H 69%30.21 inHg

Wednesday

12:00 AM

Overcast night

70° 💧 None 💨 8 mph H 68%30.21 inHg

1:00 AM

Overcast night

68° 💧 None 💨 9 mph H 69%30.21 inHg

In Grantley and, more broadly, across the state of Pennsylvania: Tonight will be mostly cloudy, with temperatures remaining mild to warm, ranging from 76 to 80 degrees Fahrenheit. There is a high likelihood of rain, with some areas possibly seeing around 0.07 inches of accumulation. Winds will be light, coming from the northwest at around 4 mph, with gusts reaching the same speed. Expect the rain to continue into the next few hours, so plan accordingly if you’re heading out. Conditions will remain relatively calm, but it’s a good idea to carry an umbrella or rain jacket if you’re outside late this evening. Temperatures should stay steady through the night, making for a warm and damp evening.

15-Day Weather Outlook for Grantley

Saturday, Sep 5Sat Sep 5

Light rain 74°/66° 💧 0.01 in 💨 9 mph

TomorrowTomorrow

Sunny 78°/60° 💧 None 💨 8 mph

Monday, Sep 7Mon Sep 7

Sunny 78°/57° 💧 None 💨 5 mph

Tuesday, Sep 8Tue Sep 8

Overcast 82°/59° 💧 None 💨 6 mph

Wednesday, Sep 9Wed Sep 9

Partly cloudy 90°/65° 💧 None 💨 12 mph

Thursday, Sep 10Thu Sep 10

Light rain 77°/60° 💧 0.04 in 💨 18 mph

Friday, Sep 11Fri Sep 11

Sunny 70°/50° 💧 None 💨 12 mph

Saturday, Sep 12Sat Sep 12

Sunny 70°/44° 💧 None 💨 7 mph

Sunday, Sep 13Sun Sep 13

Overcast 78°/50° 💧 None 💨 10 mph

Monday, Sep 14Mon Sep 14

Mostly cloudy 84°/64° 💧 None 💨 5 mph

Tuesday, Sep 15Tue Sep 15

Sunny 89°/69° 💧 None 💨 6 mph

Wednesday, Sep 16Wed Sep 16

Sunny 99°/71° 💧 None 💨 7 mph

Thursday, Sep 17Thu Sep 17

Sunny 102°/79° 💧 None 💨 13 mph

Friday, Sep 18Fri Sep 18

Overcast 95°/72° 💧 None 💨 9 mph

Saturday, Sep 19Sat Sep 19

Light rain 90°/70° 💧 0.01 in 💨 6 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Grantley

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Grantley

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 2:00 AM

PM2.5 Fine particles Good 6,8µg/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 7,4µg/m³

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

O₃ Ozone Good 44,3µg/m³

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

NO₂ Nitrogen dioxide Good 4,6µg/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 Grantley

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 6,9High 😊Good

Tomorrow UV 7,1High 🙂Fair

Monday UV 6,9High 😐Moderate

Tuesday UV 6,9High 😐Moderate

Wednesday UV 8,0Very high 🙂Fair

Thursday UV 7,0High —Unavailable

Friday UV 5,0Moderate —Unavailable

Hourly UV index today

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

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 Grantley

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · GRANTLEY, PENNSYLVANIA

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

40/100Best-hour score

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

☁ Cloud cover 72% Real hourly forecast for the best viewing hour.

☾ Moonlight 40% Last Quarter · Moon about 52° above the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 86° 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.

AUG 28–SEP 5

AurigidsStart AUG 28 · Peak SEP 1 · End SEP 5 · ZHR 6 · 80% Moon at peak

ACTIVE NOW

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

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.

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Forecast data for Grantley were last refreshed today at 1:13 AM. The current forecast period extends through 06/09/2026 at 11:00 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.