Allentown (PA)
August
Weather in Allentown, Pennsylvania for August 2025
Your guide to Allentown weather in August - trends and predictions
In general, the average temperature in Allentown at the beginning of August is 28.9 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 27.6 °F by the end of August.
The climate of Allentown in August is notably wet, with an average of 15 rainy days, and a total of 174 mm of precipitation.
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Temperatures
Rain 🌧️
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16
Dry days
15
Rainy days
0
Snow days
26°/16°
Temperatures
15 km/h
Avg max wind
76 %
Avg humidity
Allentown Weather August
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Temperatures trend during August in Allentown
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August weather in Allentown day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Aug. 1 |  Overcast | 31° /20° | 0 mm | 7 | |
| Aug. 2 |  Moderate or heavy rain shower | 30° /20° | 8 mm | 7 | |
| Aug. 3 | Moderate or heavy rain shower | 30° /21° | 24.1 mm | 7 | |
| Aug. 4 | Moderate or heavy rain shower | 27° /20° | 9.4 mm | 6 | |
| Aug. 5 |  Sunny | 31° /19° | 0 mm | 8 | |
| Aug. 6 | Moderate or heavy rain shower | 31° /20° | 26.1 mm | 7 | |
| Aug. 7 |  Patchy rain possible | 22° /17° | 9.1 mm | 5 | |
| Aug. 8 | Moderate or heavy rain shower | 22° /17° | 17.3 mm | 5 | |
| Aug. 9 | Moderate or heavy rain shower | 25° /21° | 30.2 mm | 6 | |
| Aug. 10 | Sunny | 27° /19° | 0 mm | 7 | |
| Aug. 11 |  Partly cloudy | 25° /14° | 0 mm | 7 | |
| Aug. 12 | Patchy rain possible | 24° /14° | 0.3 mm | 5 | |
| Aug. 13 | Patchy rain possible | 25° /14° | 0.2 mm | 6 | |
| Aug. 14 | Partly cloudy | 28° /14° | 0 mm | 7 | |
| Aug. 15 | Partly cloudy | 29° /15° | 0 mm | 7 | |
| Aug. 16 |  Cloudy | 28° /16° | 0 mm | 6 | |
| Aug. 17 | Moderate rain at times | 25° /19° | 7 mm | 6 | |
| Aug. 18 | Moderate or heavy rain shower | 26° /18° | 26.3 mm | 6 | |
| Aug. 19 | Moderate or heavy rain shower | 25° /16° | 7.5 mm | 6 | |
| Aug. 20 | Sunny | 20° /12° | 0 mm | 6 | |
| Aug. 21 | Patchy rain possible | 20° /9° | 0.1 mm | 5 | |
| Aug. 22 | Partly cloudy | 22° /10° | 0 mm | 6 | |
| Aug. 23 | Sunny | 25° /11° | 0 mm | 7 | |
| Aug. 24 | Sunny | 26° /13° | 0 mm | 7 | |
| Aug. 25 | Sunny | 28° /15° | 0 mm | 7 | |
| Aug. 26 | Sunny | 30° /17° | 0 mm | 8 | |
| Aug. 27 | Partly cloudy | 29° /16° | 0 mm | 7 | |
| Aug. 28 | Patchy rain possible | 33° /19° | 1.2 mm | 7 | |
| Aug. 29 | Overcast | 24° /17° | 6.2 mm | 5 | |
| Aug. 30 | Patchy rain possible | 23° /15° | 0.6 mm | 5 | |
| Aug. 31 |  Light drizzle | 26° /17° | 0.4 mm | 6 | |
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Important Notice
Our weather forecast for Allentown 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 Allentown forecast closer to your planned date for the most up-to-date weather information.
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Allentown in August - FAQ
What are the expected maximum and minimum temperatures in Allentown during August?
During August, expect a variety of temperatures with highs around 26° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Allentown during August?
Significant rainfall exceeding 174 mm is expected in Allentown during August, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Allentown during August?
The average wind speed in Allentown during August is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Allentown
Explore the daily rainfall trends and prepare for Allentowns August weather 💧
UV exposure in Allentown during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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