Erie County (Erie)
September
Weather in Erie County, Pennsylvania for September 2026
Your guide to Erie County weather in September - trends and predictions
Beach Hazards Statement - See hour by hour.
So far, September 2026 in Erie County is slightly warmer than the historical average by 0.8 °F.
The forecast for the next days in Erie County predicts temperatures to be around 18 °F, close to the historical average.
In general, the average temperature in Erie County at the beginning of September is 23.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 17.9 °F by the end of September.
Erie County experiences moderate rainfall in September, with an average of 10 rainy days and a total precipitation of 73.3 mm.
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Temperatures
Rain 🌧️
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20
Dry days
10
Rainy days
0
Snow days
21°/16°
Temperatures
21 km/h
Avg max wind
79 %
Avg humidity
Erie County Weather September
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Temperatures trend during September in Erie County
See the weather trend as well as the moving average line
September weather in Erie County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 25° /19° | 1.2 mm | 7 | |
| Sept. 2 |  Partly cloudy | 25° /19° | 42.8 mm | 5 | |
| Sept. 3 | Partly cloudy | 26° /19° | 13.5 mm | 4 | |
| Sept. 4 |  Heavy rain at times | 22° /18° | 4.3 mm | 4 | |
| Sept. 5 |  Overcast | 25° /15° | 0 mm | 7 | |
| Sept. 6 |  Moderate or heavy rain shower | 22° /17° | 5.6 mm | 6 | |
| Sept. 7 |  Light rain shower | 20° /15° | 3 mm | 6 | |
| Sept. 8 |  Cloudy | 20° /16° | 0 mm | 4 | |
| Sept. 9 | Patchy rain possible | 23° /16° | 7.2 mm | 4 | |
| Sept. 10 | Sunny | 22° /16° | 0.4 mm | 5 | |
| Sept. 11 | Sunny | 23° /16° | 0 mm | 6 | |
| Sept. 12 | Sunny | 23° /16° | 11.5 mm | 4 | |
| Sept. 13 | Sunny | 23° /16° | 0.5 mm | 5 | |
| Sept. 14 | Sunny | 21° /16° | 0 mm | 6 | |
| Sept. 15 | Sunny | 24° /16° | 0 mm | 4 | |
| Sept. 16 | Sunny | 23° /17° | 2.4 mm | 4 | |
| Sept. 17 | Overcast | 22° /17° | 2.2 mm | 4 | |
| Sept. 18 | Sunny | 21° /16° | 0.2 mm | 5 | |
| Sept. 19 | Cloudy | 21° /16° | 0.4 mm | 4 | |
| Sept. 20 | Overcast | 22° /14° | 0.6 mm | 4 | |
| Sept. 21 | Overcast | 19° /15° | 0 mm | 5.4 | |
| Sept. 22 | Patchy rain possible | 16° /14° | 3.3 mm | 2.5 | |
| Sept. 23 | Light rain shower | 14° /12° | 22.4 mm | 4 | |
| Sept. 24 | Overcast | 18° /13° | 5.5 mm | 5 | |
| Sept. 25 | Sunny | 19° /15° | 0 mm | 5 | |
| Sept. 26 | Sunny | 19° /16° | 0 mm | 5 | |
| Sept. 27 | Sunny | 18° /14° | 0 mm | 5 | |
| Sept. 28 | Sunny | 17° /11° | 0 mm | 5 | |
| Sept. 29 | Overcast | 17° /15° | 0.6 mm | 4 | |
| Sept. 30 | Patchy rain possible | 17° /16° | 2.5 mm | 5 | |
| Next | |||||
Important Notice
Our weather forecast for Erie 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 Erie County forecast closer to your planned date for the most up-to-date weather information.
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Erie County in September - FAQ
What are the expected maximum and minimum temperatures in Erie County during September?
During September, expect a variety of temperatures with highs around 21° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Erie County during September?
Moderate rainfall is anticipated in Erie County during September, with a total of 73.3 mm spread over approximately 10 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Erie County during September?
The average wind speed in Erie County during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Erie County
Explore the daily rainfall trends and prepare for Erie Countys September weather 💧
Typically, Erie County has 10 rainy days in September with a total of 73.3 mm of rainfall.
UV exposure in Erie County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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