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Weather in Allegheny County for August 2025

Your guide to Allegheny County weather in August - trends and predictions
  • In general, the average temperature in Allegheny County at the beginning of August is 28.4 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 29.4 °F by the end of August.

  • The climate of Allegheny County in August is notably wet, with an average of 15 rainy days.

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Average dry days
16
Dry days
Average rainy days
15
Rainy days
Average snowy days
0
Snow days
Average temperatures
28°/16°
Temperatures
Average wind speed
13 km/h
Avg max wind
Average humidity
71 %
Avg humidity

Allegheny County in August average weather

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Temperatures trend during August in Allegheny County

See the weather trend as well as the moving average line

August weather day by day

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Date Weather Temperatures Rain UV More
Aug. 1 Patchy rain possible
Patchy rain possible
27° /16° 1.2 mm 6
Aug. 2 Partly cloudy
Partly cloudy
30° /16° 8.2 mm 7
Aug. 3 Patchy rain possible
Patchy rain possible
30° /16° 1.9 mm 7
Aug. 4 Patchy rain possible
Patchy rain possible
30° /17° 2.6 mm 7
Aug. 5 Overcast
Overcast
30° /16° 1.1 mm 7
Aug. 6 Moderate or heavy rain shower
Moderate or heavy rain shower
28° /18° 7.2 mm 7
Aug. 7 Moderate or heavy rain shower
Moderate or heavy rain shower
24° /18° 13.1 mm 6
Aug. 8 Patchy rain possible
Patchy rain possible
29° /17° 3.8 mm 7
Aug. 9 Patchy rain possible
Patchy rain possible
26° /17° 3 mm 6
Aug. 10 Moderate or heavy rain shower
Moderate or heavy rain shower
26° /15° 11.6 mm 6
Aug. 11 Patchy rain possible
Patchy rain possible
26° /14° 0.1 mm 6
Aug. 12 Patchy rain possible
Patchy rain possible
28° /15° 0.5 mm 7
Aug. 13 Overcast
Overcast
28° /16° 1.3 mm 6
Aug. 14 Moderate or heavy rain shower
Moderate or heavy rain shower
26° /16° 8.4 mm 6
Aug. 15 Heavy rain at times
Heavy rain at times
28° /16° 2.4 mm 7
Aug. 16 Patchy rain possible
Patchy rain possible
26° /17° 6.2 mm 6
Aug. 17 Overcast
Overcast
28° /17° 9.4 mm 6
Aug. 18 Patchy rain possible
Patchy rain possible
23° /16° 8.1 mm 5
Aug. 19 Partly cloudy
Partly cloudy
23° /12° 0.4 mm 6
Aug. 20 Overcast
Overcast
25° /12° 0 mm 7
Aug. 21 Patchy rain possible
Patchy rain possible
27° /13° 0.1 mm 7
Aug. 22 Overcast
Overcast
26° /13° 0 mm 6
Aug. 23 Heavy rain at times
Heavy rain at times
26° /13° 2 mm 7
Aug. 24 Moderate or heavy rain shower
Moderate or heavy rain shower
30° /15° 7.4 mm 7
Aug. 25 Patchy rain possible
Patchy rain possible
31° /18° 0.4 mm 7
Aug. 26 Mist
Mist
28° /18° 1 mm 6
Aug. 27 Cloudy
Cloudy
30° /17° 0.1 mm 7
Aug. 28 Cloudy
Cloudy
31° /17° 18.3 mm 7
Aug. 29 Mist
Mist
30° /17° 0.9 mm 7
Aug. 30 Overcast
Overcast
27° /17° 0.1 mm 7
Aug. 31 Partly cloudy
Partly cloudy
29° /15° 4.6 mm 7
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Important Notice
Our weather forecast for Allegheny County in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Allegheny County forecast closer to your planned date for the most up-to-date weather information.

Allegheny County in August - FAQ

What are the expected maximum and minimum temperatures in Allegheny County during August?
During August, expect a variety of temperatures with highs around 28° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Allegheny County during August?
Significant rainfall exceeding 126.1 mm is expected in Allegheny County during August, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Allegheny County during August?
The average wind speed in Allegheny County during August is 13 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Allegheny County

Explore the daily rainfall trends and prepare for Allegheny Countys August weather 💧

UV exposure in Allegheny County during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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Location coordinates Where is Allegheny County?

Get accurate weather forecasts for Allegheny County, located at latitude 40.441 and longitude -79.996. Stay updated with localized weather information tailored for Allegheny County.

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