Berks County (Reading)
September
Weather in Berks County, Pennsylvania for September 2026
Your guide to Berks County weather in September - trends and predictions
So far, September 2026 in Berks County is slightly warmer than the historical average by 1.6 °F.
The forecast for the upcoming days in Berks County predicts a temperature of 16.8 °F, which is slightly above the historical average.
In general, the average temperature in Berks County at the beginning of September is 25.7 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 15.6 °F by the end of September.
The climate of Berks County in September is notably wet, with an average of 12 rainy days, and a total of 134.4 mm of precipitation.
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Temperatures
Rain 🌧️
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18
Dry days
12
Rainy days
0
Snow days
23°/14°
Temperatures
13 km/h
Avg max wind
76 %
Avg humidity
Berks County Weather September
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Temperatures trend during September in Berks County
See the weather trend as well as the moving average line
September weather in Berks County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Moderate or heavy rain shower | 28° /17° | 5.3 mm | 5 | |
| Sept. 2 |  Overcast | 24° /16° | 2.2 mm | 4 | |
| Sept. 3 |  Sunny | 26° /14° | 7.2 mm | 4 | |
| Sept. 4 |  Partly cloudy | 27° /14° | 5.7 mm | 7 | |
| Sept. 5 | Sunny | 27° /15° | 7.2 mm | 7 | |
| Sept. 6 | Overcast | 26° /15° | 0 mm | 6 | |
| Sept. 7 | Moderate rain at times | 22° /12° | 3.4 mm | 6 | |
| Sept. 8 | Sunny | 23° /9° | 0 mm | 7 | |
| Sept. 9 | Partly cloudy | 25° /11° | 0.1 mm | 5 | |
| Sept. 10 | Sunny | 26° /14° | 0.3 mm | 5 | |
| Sept. 11 | Partly cloudy | 26° /14° | 0 mm | 6 | |
| Sept. 12 | Sunny | 26° /13° | 0.4 mm | 6 | |
| Sept. 13 | Sunny | 25° /15° | 4.7 mm | 5 | |
| Sept. 14 | Partly cloudy | 27° /14° | 0 mm | 7 | |
| Sept. 15 | Partly cloudy | 25° /13° | 0 mm | 7 | |
| Sept. 16 | Overcast | 25° /12° | 0 mm | 5 | |
| Sept. 17 | Overcast | 23° /15° | 1 mm | 5 | |
| Sept. 18 |  Patchy rain possible | 25° /16° | 0.4 mm | 5 | |
| Sept. 19 | Moderate or heavy rain shower | 24° /13° | 2.7 mm | 5 | |
| Sept. 20 | Overcast | 22° /14° | 7.2 mm | 4 | |
| Sept. 21 | Light rain shower | 18° /13° | 9.1 mm | 1.4 | |
| Sept. 22 | Light rain shower | 13° /9° | 18.8 mm | 0.5 | |
| Sept. 23 | Overcast | 13° /7° | 6.1 mm | 3.9 | |
| Sept. 24 | Patchy rain possible | 13° /10° | 0.6 mm | 4.5 | |
| Sept. 25 | Overcast | 19° /7° | 0.1 mm | 4 | |
| Sept. 26 | Patchy rain possible | 13° /10° | 3 mm | 3 | |
| Sept. 27 | Sunny | 16° /9° | 0.1 mm | 5 | |
| Sept. 28 | Overcast | 14° /9° | 0.7 mm | 3 | |
| Sept. 29 | Patchy rain possible | 14° /12° | 3.8 mm | 3 | |
| Sept. 30 |  Mist | 20° /14° | 1.7 mm | 4 | |
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Important Notice
Our weather forecast for Berks County in September 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 Berks County forecast closer to your planned date for the most up-to-date weather information.
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Berks County in September - FAQ
What are the expected maximum and minimum temperatures in Berks County during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Berks County during September?
Significant rainfall exceeding 134.4 mm is expected in Berks County during September, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Berks County during September?
The average wind speed in Berks County during September is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Berks County
Explore the daily rainfall trends and prepare for Berks Countys September weather 💧
Typically, Berks County has 12 rainy days in September with a total of 134.4 mm of rainfall.
UV exposure in Berks County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Berks County?Get accurate weather forecasts for Berks County, located at latitude 40.336 and longitude -75.927. Stay updated with localized weather information tailored for Berks County.
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