Allegheny County (Pittsburgh)
August
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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16
Dry days
15
Rainy days
0
Snow days
28°/16°
Temperatures
13 km/h
Avg max wind
71 %
Avg humidity
Allegheny County in August average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  27° | 2  30° | 3 30° | ||||
| 4 30° | 5  30° | 6  28° | 7 24° | 8 29° | 9 26° | 10 26° |
| 11 26° | 12 28° | 13 28° | 14 26° | 15  28° | 16 26° | 17 28° |
| 18 23° | 19 23° | 20 25° | 21 27° | 22 26° | 23 26° | 24 30° |
| 25 31° | 26  28° | 27  30° | 28 31° | 29 30° | 30 27° | 31 29° |
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Temperatures trend during August in Allegheny County
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August weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 | Patchy rain possible | 27° /16° | 1.2 mm | 6 | |
| Aug. 2 | Partly cloudy | 30° /16° | 8.2 mm | 7 | |
| Aug. 3 | Patchy rain possible | 30° /16° | 1.9 mm | 7 | |
| Aug. 4 | Patchy rain possible | 30° /17° | 2.6 mm | 7 | |
| Aug. 5 | Overcast | 30° /16° | 1.1 mm | 7 | |
| Aug. 6 | Moderate or heavy rain shower | 28° /18° | 7.2 mm | 7 | |
| Aug. 7 | Moderate or heavy rain shower | 24° /18° | 13.1 mm | 6 | |
| Aug. 8 | Patchy rain possible | 29° /17° | 3.8 mm | 7 | |
| Aug. 9 | Patchy rain possible | 26° /17° | 3 mm | 6 | |
| Aug. 10 | Moderate or heavy rain shower | 26° /15° | 11.6 mm | 6 | |
| Aug. 11 | Patchy rain possible | 26° /14° | 0.1 mm | 6 | |
| Aug. 12 | Patchy rain possible | 28° /15° | 0.5 mm | 7 | |
| Aug. 13 | Overcast | 28° /16° | 1.3 mm | 6 | |
| Aug. 14 | Moderate or heavy rain shower | 26° /16° | 8.4 mm | 6 | |
| Aug. 15 | Heavy rain at times | 28° /16° | 2.4 mm | 7 | |
| Aug. 16 | Patchy rain possible | 26° /17° | 6.2 mm | 6 | |
| Aug. 17 | Overcast | 28° /17° | 9.4 mm | 6 | |
| Aug. 18 | Patchy rain possible | 23° /16° | 8.1 mm | 5 | |
| Aug. 19 | Partly cloudy | 23° /12° | 0.4 mm | 6 | |
| Aug. 20 | Overcast | 25° /12° | 0 mm | 7 | |
| Aug. 21 | Patchy rain possible | 27° /13° | 0.1 mm | 7 | |
| Aug. 22 | Overcast | 26° /13° | 0 mm | 6 | |
| Aug. 23 | Heavy rain at times | 26° /13° | 2 mm | 7 | |
| Aug. 24 | Moderate or heavy rain shower | 30° /15° | 7.4 mm | 7 | |
| Aug. 25 | Patchy rain possible | 31° /18° | 0.4 mm | 7 | |
| Aug. 26 | Mist | 28° /18° | 1 mm | 6 | |
| Aug. 27 | Cloudy | 30° /17° | 0.1 mm | 7 | |
| Aug. 28 | Cloudy | 31° /17° | 18.3 mm | 7 | |
| Aug. 29 | Mist | 30° /17° | 0.9 mm | 7 | |
| Aug. 30 | Overcast | 27° /17° | 0.1 mm | 7 | |
| Aug. 31 | 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
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UV exposure in Allegheny County during August
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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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