Amherst (OH)
September
Weather in Amherst, Ohio for September 2026
Your guide to Amherst weather in September - trends and predictions
So far, September 2026 in Amherst is slightly warmer than the historical average by 1.8 °F.
The forecast for the next days in Amherst predicts temperatures to be around 18 °F, close to the historical average.
In general, the average temperature in Amherst at the beginning of September is 25.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 18.3 °F by the end of September.
The climate of Amherst in September is notably wet, with an average of 11 rainy days, and a total of 120.2 mm of precipitation.
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Temperatures
Rain 🌧️
More
19
Dry days
11
Rainy days
0
Snow days
24°/14°
Temperatures
19 km/h
Avg max wind
74 %
Avg humidity
Amherst Weather September
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Temperatures trend during September in Amherst
See the weather trend as well as the moving average line
September weather in Amherst day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Heavy rain at times | 28° /16° | 0.4 mm | 6 | |
| Sept. 2 |  Overcast | 27° /15° | 0 mm | 6 | |
| Sept. 3 |  Sunny | 29° /14° | 4.3 mm | 7 | |
| Sept. 4 | Sunny | 25° /14° | 7.4 mm | 5 | |
| Sept. 5 | Sunny | 26° /12° | 28.3 mm | 5 | |
| Sept. 6 |  Moderate or heavy rain shower | 23° /14° | 8.8 mm | 5 | |
| Sept. 7 |  Patchy rain possible | 21° /11° | 1.2 mm | 6 | |
| Sept. 8 | Overcast | 23° /11° | 0 mm | 4 | |
| Sept. 9 |  Partly cloudy | 27° /13° | 3.4 mm | 5 | |
| Sept. 10 | Sunny | 25° /13° | 0.7 mm | 4 | |
| Sept. 11 | Partly cloudy | 25° /14° | 0 mm | 6 | |
| Sept. 12 | Sunny | 26° /13° | 14.4 mm | 4 | |
| Sept. 13 | Overcast | 26° /14° | 1 mm | 5 | |
| Sept. 14 | Sunny | 24° /13° | 0 mm | 7 | |
| Sept. 15 | Sunny | 26° /14° | 0 mm | 5 | |
| Sept. 16 | Sunny | 26° /16° | 10.9 mm | 5 | |
| Sept. 17 | Overcast | 25° /15° | 3.5 mm | 4 | |
| Sept. 18 | Patchy rain possible | 25° /13° | 0.2 mm | 5 | |
| Sept. 19 | Patchy rain possible | 24° /15° | 5.7 mm | 4 | |
| Sept. 20 | Light rain shower | 22° /15° | 13.5 mm | 2.3 | |
| Sept. 21 | Patchy rain possible | 15° /11° | 2.3 mm | 2.8 | |
| Sept. 22 | Patchy rain possible | 17° /11° | 2 mm | 3.8 | |
| Sept. 23 | Light rain shower | 15° /11° | 7.8 mm | 1.5 | |
| Sept. 24 | Patchy rain possible | 16° /11° | 0.2 mm | 5 | |
| Sept. 25 | Overcast | 18° /10° | 0 mm | 4 | |
| Sept. 26 | Sunny | 19° /13° | 0 mm | 5 | |
| Sept. 27 | Sunny | 20° /12° | 0 mm | 5 | |
| Sept. 28 | Sunny | 21° /12° | 2.2 mm | 5 | |
| Sept. 29 | Patchy rain possible | 17° /8° | 4.6 mm | 4 | |
| Sept. 30 | Sunny | 17° /7° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Amherst 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 Amherst forecast closer to your planned date for the most up-to-date weather information.
Change Month
Amherst in September - FAQ
What are the expected maximum and minimum temperatures in Amherst during September?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 14°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Amherst during September?
Significant rainfall exceeding 120.2 mm is expected in Amherst during September, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Amherst during September?
The average wind speed in Amherst during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Amherst
Explore the daily rainfall trends and prepare for Amhersts September weather 💧
Typically, Amherst has 11 rainy days in September with a total of 120.2 mm of rainfall.
UV exposure in Amherst during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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