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Now · 12:45 AM

Acker, PA Weather Forecast – Hourly & 15-Day

United States · Pennsylvania

Clear night
57°F
Clear night
Feels like: 51°F
💧 Humidity 74% 🌡 Pressure 30.03 inHg 💨 Wind 10 mph 👁 Visibility 21.3 mi ☁ Clouds 0% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:58 AM 🌇 Sunset 7:00 PM

Hourly Forecast for Acker

Today
Clear night · 1:00 AM Clear night
57° 💧 0 in 💨 10 mph 74%30.03 inHg
Clear night · 4:00 AM Clear night
57° 💧 0 in 💨 9 mph 69%29.97 inHg
Sunny · 7:00 AM Sunny
56° 💧 0 in 💨 8 mph 73%29.97 inHg
Sunny · 10:00 AM Sunny
63° 💧 0 in 💨 11 mph 63%29.97 inHg
Overcast · 1:00 PM Overcast
65° 💧 0.046 in 💨 14 mph 56%29.94 inHg
Overcast · 4:00 PM Overcast
63° 💧 0.000 in 💨 12 mph 68%29.91 inHg
Overcast night · 7:00 PM Overcast night
64° 💧 0 in 💨 12 mph 54%29.88 inHg
Overcast night · 10:00 PM Overcast night
63° 💧 0 in 💨 13 mph 62%29.88 inHg
Tomorrow
Overcast night · 1:00 AM Overcast night
63° 💧 0 in 💨 12 mph 59%29.85 inHg
Mostly cloudy night · 4:00 AM Mostly cloudy night
60° 💧 0 in 💨 11 mph 60%29.80 inHg
Overcast · 7:00 AM Overcast
58° 💧 0 in 💨 11 mph 63%29.77 inHg
Overcast · 10:00 AM Overcast
60° 💧 0.110 in 💨 12 mph 67%29.74 inHg
Light rain · 1:00 PM Light rain
57° 💧 0.087 in 💨 13 mph 95%29.74 inHg
Light rain · 4:00 PM Light rain
58° 💧 0.223 in 💨 11 mph 96%29.71 inHg
Light rain · 7:00 PM Light rain
57° 💧 0.008 in 💨 11 mph 95%29.74 inHg
Overcast night · 10:00 PM Overcast night
58° 💧 0.002 in 💨 9 mph 90%29.77 inHg

In Acker and, more broadly, across the state of Pennsylvania: This morning will start with mostly cloudy skies and mild temperatures ranging from 55 to 64 degrees Fahrenheit. Light northeast winds will blow at around 8 mph, with gusts reaching up to 19 mph. As the day progresses, the sky will remain mostly cloudy, and there is a high likelihood of rain, with total accumulation around 0.24 inches. Winds will continue to be light, but gusts may be slightly stronger during the storm. Temperatures are expected to stay within the mild range through the afternoon, making for a relatively comfortable day despite the unsettled weather. Be prepared for the possibility of rain, especially later in the day.

15-Day Weather Outlook for Acker

TomorrowTomorrow Overcast Overcast 63°/57° 💧 0 in 💨 13 mph
Monday, September 28Mon, Sep. 28 Overcast Overcast 60°/58° 💧 0 in 💨 8 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Acker

Vertical axis: °F · Horizontal axis: hours · Color based on temperature
Clear night · 1:00 AM
57° Today 1:00 AM
Clear night · 2:00 AM
57° 2:00 AM
Clear night · 3:00 AM
57° 3:00 AM
Clear night · 4:00 AM
57° 4:00 AM
Clear night · 5:00 AM
57° Today 5:00 AM
Clear night · 6:00 AM
56° 6:00 AM
Sunny · 7:00 AM
56° 7:00 AM
Sunny · 8:00 AM
57° 8:00 AM
Sunny · 9:00 AM
60° Today 9:00 AM
Sunny · 10:00 AM
63° 10:00 AM
Partly cloudy · 11:00 AM
67° 11:00 AM
Overcast · 12:00 PM
68° 12:00 PM
Overcast · 1:00 PM
65° Today 1:00 PM
Light rain · 2:00 PM
61° 2:00 PM
Light rain · 3:00 PM
60° 3:00 PM
Overcast · 4:00 PM
63° 4:00 PM
Overcast · 5:00 PM
64° Today 5:00 PM
Overcast · 6:00 PM
64° 6:00 PM
Overcast night · 7:00 PM
64° 7:00 PM
Overcast night · 8:00 PM
64° 8:00 PM
Overcast night · 9:00 PM
63° Today 9:00 PM
Overcast night · 10:00 PM
63° 10:00 PM
Overcast night · 11:00 PM
63° 11:00 PM
Overcast night · 12:00 AM
63° 12:00 AM
Overcast night · 1:00 AM
63° Tomorrow 1:00 AM
Mostly cloudy night · 2:00 AM
62° 2:00 AM
Mostly cloudy night · 3:00 AM
61° 3:00 AM
Mostly cloudy night · 4:00 AM
60° 4:00 AM
Overcast night · 5:00 AM
59° Tomorrow 5:00 AM
Mostly cloudy night · 6:00 AM
59° 6:00 AM
Overcast · 7:00 AM
58° 7:00 AM
Overcast · 8:00 AM
59° 8:00 AM
Overcast · 9:00 AM
60° Tomorrow 9:00 AM
Overcast · 10:00 AM
60° 10:00 AM
Light rain · 11:00 AM
58° 11:00 AM
Light rain · 12:00 PM
57° 12:00 PM
Light rain · 1:00 PM
57° Tomorrow 1:00 PM
Light rain · 2:00 PM
58° 2:00 PM
Light rain · 3:00 PM
58° 3:00 PM
Light rain · 4:00 PM
58° 4:00 PM
Light rain · 5:00 PM
58° Tomorrow 5:00 PM
Light rain · 6:00 PM
58° 6:00 PM
Light rain · 7:00 PM
57° 7:00 PM
Overcast night · 8:00 PM
57° 8:00 PM
Overcast night · 9:00 PM
58° Tomorrow 9:00 PM
Overcast night · 10:00 PM
58° 10:00 PM
Overcast night · 11:00 PM
58° 11:00 PM
Overcast night · 12:00 AM
58° 12:00 AM
Overcast night · 1:00 AM
59° Monday 1:00 AM
Overcast night · 2:00 AM
59° 2:00 AM
Mostly cloudy night · 3:00 AM
59° 3:00 AM
Mostly cloudy night · 4:00 AM
58° 4:00 AM
Mostly cloudy night · 5:00 AM
58° Monday 5:00 AM
Overcast night · 6:00 AM
59° 6:00 AM
Overcast night · 7:00 AM
59° 7:00 AM
Overcast · 8:00 AM
60° 8:00 AM

AIR QUALITY FORECAST

Air Quality Forecast for Acker

Hourly forecast · Updated every 2 hours
Fair
Nearest forecast value 1:00 AM
PM2.5 PM2.5 Good 2,6µg/m³

Air quality is favorable for outdoor activities.

PM10 PM10 Good 3,0µg/m³

Air quality is favorable for outdoor activities.

O₃ O₃ Fair 71,7µg/m³

Air quality is acceptable for most people.

NO₂ NO₂ Good 2,5µg/m³

Air quality is favorable for outdoor activities.

Air quality is acceptable for most people.

HEALTH & EXPOSURE

UV, Sun & Health Outlook in Acker

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 1,3Low 🙂Fair
Tomorrow UV 0,1Low 🙂Fair
Hourly UV index today
7:00 AMUV 0,0 8:00 AMUV 0,3 9:00 AMUV 1,1 10:00 AMUV 2,2 11:00 AMUV 2,9 12:00 PMUV 3,1 1:00 PMUV 1,5 2:00 PMUV 1,0 3:00 PMUV 0,7 4:00 PMUV 0,7 5:00 PMUV 0,8 6:00 PMUV 0,3 7:00 PMUV 0,1
Hourly UV index tomorrow
7:00 AMUV 0,0 8:00 AMUV 0,2 9:00 AMUV 0,7 10:00 AMUV 0,9 11:00 AMUV 1,3 12:00 PMUV 0,9 1:00 PMUV 0,7 2:00 PMUV 0,7 3:00 PMUV 0,6 4:00 PMUV 0,7 5:00 PMUV 0,6 6:00 PMUV 0,4 7:00 PMUV 0,0
Today's weather health advice Open today's recommendations.

Low UV risk

UV radiation will be low, although basic protection is still advisable during 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 Acker

Vertical axis: mph · Horizontal axis: hours
Hourly wind speed Chart of sustained wind and maximum gusts in mph. Today 1:00 AM 2:00 AM 3:00 AM 4:00 AM Today 5:00 AM 6:00 AM 7:00 AM 8:00 AM Today 9:00 AM 10:00 AM 11:00 AM 12:00 PM Today 1:00 PM 2:00 PM 3:00 PM 4:00 PM Today 5:00 PM 6:00 PM 7:00 PM 8:00 PM Today 9:00 PM 10:00 PM 11:00 PM 12:00 AM Tomorrow 1:00 AM 2:00 AM 3:00 AM 4:00 AM Tomorrow 5:00 AM 6:00 AM 7:00 AM 8:00 AM Tomorrow 9:00 AM 10:00 AM 11:00 AM 12:00 PM Tomorrow 1:00 PM 2:00 PM 3:00 PM 4:00 PM Tomorrow 5:00 PM 6:00 PM 7:00 PM 8:00 PM Tomorrow 9:00 PM 10:00 PM 11:00 PM 12:00 AM Monday 1:00 AM 2:00 AM 3:00 AM 4:00 AM Monday 5:00 AM 6:00 AM 7:00 AM 8:00 AM
Sustained wind Max gusts

The technical data used to calculate this forecast for Acker were updated today at 12:45 AM. The displayed forecasts cover the period through 27/09/2026 at 10:00 PM. Weather and air-quality data provided by WEATHER-INFO.COM. UV-index data derived from ECMWF UVB by WEATHER PORTAL. Weather information is generated automatically and periodically reviewed by our technical team.

NIGHT SKY · ACKER, PENNSYLVANIA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 5:00 AM–6:00 AM.

94/100Best-hour score
BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 8:31 PM–5:28 AM
☁ Cloud cover 0% Real hourly forecast for the best viewing hour.
☾ Moonlight 100% Full Moon · Moon about 19° above the horizon at the best viewing hour.
☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 63° 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 20–NOV 20
Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak
ACTIVE NOW
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
NOV 6–NOV 30
LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% 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.