McDonough (GA)
September
Weather in McDonough, Georgia for September 2026
Your guide to McDonough weather in September - trends and predictions
So far, September 2026 in McDonough shows a warmer trend than usual by 2.9 °F.
The forecast for the next days in McDonough predicts temperatures to be around 27 °F, close to the historical average.
In general, the average temperature in McDonough at the beginning of September is 32.3 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 25.7 °F by the end of September.
McDonough experiences moderate rainfall in September, with an average of 8 rainy days and a total precipitation of 246.7 mm.
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Temperatures
Rain 🌧️
More
22
Dry days
8
Rainy days
0
Snow days
28°/20°
Temperatures
14 km/h
Avg max wind
67 %
Avg humidity
McDonough Weather September
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Temperatures trend during September in McDonough
See the weather trend as well as the moving average line
September weather in McDonough day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Partly cloudy | 30° /20° | 0 mm | 8 | |
| Sept. 2 | Partly cloudy | 32° /19° | 0 mm | 7 | |
| Sept. 3 | Partly cloudy | 33° /19° | 0 mm | 9 | |
| Sept. 4 | Partly cloudy | 34° /20° | 0 mm | 9 | |
| Sept. 5 |  Cloudy | 35° /22° | 0.4 mm | 9 | |
| Sept. 6 |  Overcast | 33° /22° | 0.2 mm | 8 | |
| Sept. 7 | Partly cloudy | 29° /21° | 0 mm | 6 | |
| Sept. 8 | Overcast | 28° /20° | 0.1 mm | 8 | |
| Sept. 9 | Partly cloudy | 29° /18° | 0 mm | 8 | |
| Sept. 10 | Partly cloudy | 31° /18° | 0.4 mm | 8 | |
| Sept. 11 | Overcast | 29° /19° | 4.6 mm | 6 | |
| Sept. 12 |  Moderate or heavy rain shower | 26° /19° | 13.8 mm | 4 | |
| Sept. 13 | Moderate rain at times | 29° /20° | 2.5 mm | 6 | |
| Sept. 14 | Moderate or heavy rain shower | 29° /20° | 5.9 mm | 7 | |
| Sept. 15 |  Patchy rain possible | 29° /21° | 0.6 mm | 7 | |
| Sept. 16 | Partly cloudy | 30° /19° | 0.5 mm | 7 | |
| Sept. 17 |  Sunny | 30° /17° | 2.1 mm | 7 | |
| Sept. 18 | Patchy rain possible | 31° /20° | 0.2 mm | 7 | |
| Sept. 19 | Patchy rain possible | 31° /20° | 2 mm | 5 | |
| Sept. 20 | Partly cloudy | 29° /20° | 2 mm | 7 | |
| Sept. 21 | Sunny | 34° /22° | 1.5 mm | 7.9 | |
| Sept. 22 | Patchy rain possible | 33° /21° | 5 mm | 7.7 | |
| Sept. 23 | Light rain shower | 22° /18° | 5.6 mm | 2.4 | |
| Sept. 24 | Overcast | 22° /15° | 0.2 mm | 5.1 | |
| Sept. 25 | Sunny | 26° /13° | 0 mm | 7 | |
| Sept. 26 | Overcast | 27° /16° | 0 mm | 7 | |
| Sept. 27 | Sunny | 25° /15° | 0 mm | 7 | |
| Sept. 28 | Sunny | 25° /13° | 0 mm | 6 | |
| Sept. 29 | Sunny | 27° /16° | 0 mm | 7 | |
| Sept. 30 | Overcast | 28° /18° | 0 mm | 6 | |
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Important Notice
Our weather forecast for McDonough 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 McDonough forecast closer to your planned date for the most up-to-date weather information.
Change Month
McDonough in September - FAQ
What are the expected maximum and minimum temperatures in McDonough during September?
During September, expect a variety of temperatures with highs around 28° and lows near 20°, suitable for diverse activities and preferences.
How much rainfall should be expected in McDonough during September?
Significant rainfall exceeding 246.7 mm is expected in McDonough during September, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in McDonough during September?
The average wind speed in McDonough during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in McDonough
Explore the daily rainfall trends and prepare for McDonoughs September weather 💧
Typically, McDonough has 8 rainy days in September with a total of 246.7 mm of rainfall.
UV exposure in McDonough during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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