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.
Allegheny County experiences heavy rainfall in August, with over 20 rainy days and an average total precipitation 125.6 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
10
Dry days
21
Rainy days
0
Snow days
27°/16°
Temperatures
13 km/h
Avg max wind
71 %
Avg humidity
Allegheny County in August average weather
Move between months or click on a day
| 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° |
You can click on date
Access Allegheny County weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during August in Allegheny County
See the weather trend as well as the moving average line
August weather day by day
Click on a date for more information
| 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 | |
| Next | |||||
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 27° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Allegheny County during August?
Significant rainfall exceeding 125.6 mm is expected in Allegheny County during August, occurring over more than 21 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 ☀️
Top locations in Allegheny County
Select a location for an accurate weather forecast
More Locations Quick links
You are here
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.
Found a mistake?
We appreciate your attention to details. Tell us here.