Weather in Gilbert, Arizona for September 2026
Until now, September 2026 in Gilbert has been nearly identical to the historical average, with a temperature of 37.6 °F (showing only a slight deviation of 0.5 °F).
The forecast for the upcoming days in Gilbert predicts a temperature of 33.9 °F, which is slightly above the historical average.
In general, the average temperature in Gilbert at the beginning of September is 39.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 33.7 °F by the end of September.
With an average of 5 rainy days, Gilbert experiences minimal rainfall in September.
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Gilbert Weather September
Temperatures trend during September in Gilbert
September weather in Gilbert day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Thundery outbreaks possible | 39° /27° | 3.2 mm | 9 | |
| Sept. 2 |  Sunny | 39° /27° | 2.9 mm | 9 | |
| Sept. 3 | Sunny | 39° /27° | 0.3 mm | 9 | |
| Sept. 4 | Sunny | 40° /28° | 0.7 mm | 9 | |
| Sept. 5 | Sunny | 38° /27° | 0 mm | 8 | |
| Sept. 6 | Sunny | 40° /27° | 0 mm | 9 | |
| Sept. 7 | Sunny | 41° /28° | 0 mm | 10 | |
| Sept. 8 | Sunny | 41° /27° | 0 mm | 10 | |
| Sept. 9 | Sunny | 41° /28° | 0 mm | 10 | |
| Sept. 10 | Sunny | 42° /28° | 0.1 mm | 10 | |
| Sept. 11 | Sunny | 40° /28° | 0.9 mm | 9 | |
| Sept. 12 | Thundery outbreaks possible | 37° /27° | 9.9 mm | 9 | |
| Sept. 13 | Sunny | 37° /25° | 1 mm | 9 | |
| Sept. 14 | Sunny | 38° /25° | 0.5 mm | 8 | |
| Sept. 15 | Sunny | 37° /24° | 5.2 mm | 7 | |
| Sept. 16 | Sunny | 37° /23° | 6.7 mm | 7 | |
| Sept. 17 |  Partly cloudy | 35° /24° | 0.7 mm | 7 | |
| Sept. 18 | Sunny | 36° /24° | 0 mm | 8 | |
| Sept. 19 | Sunny | 37° /23° | 0 mm | 9 | |
| Sept. 20 |  Overcast | 36° /24° | 0 mm | 8 | |
| Sept. 21 | Overcast | 34° /23° | 0.3 mm | 7 | |
| Sept. 22 | Partly cloudy | 35° /23° | 2.6 mm | 7 | |
| Sept. 23 | Sunny | 37° /23° | 0 mm | 7 | |
| Sept. 24 | Sunny | 37° /23° | 2.5 mm | 8 | |
| Sept. 25 | Sunny | 34° /25° | 0 mm | 7.9 | |
| Sept. 26 | Sunny | 36° /29° | 0 mm | 8 | |
| Sept. 27 | Overcast | 33° /25° | 2.9 mm | 4.6 | |
| Sept. 28 |  Patchy rain possible | 31° /23° | 5.4 mm | 6.5 | |
| Sept. 29 | Sunny | 32° /22° | 0.3 mm | 8 | |
| Sept. 30 | Sunny | 33° /26° | 0 mm | 8 | |
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Gilbert in September - FAQ
What are the expected maximum and minimum temperatures in Gilbert during September?
How much rainfall should be expected in Gilbert during September?
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September rainfall patterns in Gilbert
UV exposure in Gilbert during September
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Where is Gilbert?Get accurate weather forecasts for Gilbert, located at latitude 33.353 and longitude -111.789. Stay updated with localized weather information tailored for Gilbert.