Weather in Mesa, Arizona for September 2026
Until now, September 2026 in Mesa has been nearly identical to the historical average, with a temperature of 37.7 °F (showing only a slight deviation of 0.4 °F).
The forecast for the upcoming days in Mesa predicts a temperature of 31.1 °F, which is slightly above the historical average.
In general, the average temperature in Mesa at the beginning of September is 39.3 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 31.3 °F by the end of September.
Mesa experiences moderate rainfall in September, with an average of 6 rainy days and a total precipitation of 15.4 mm.
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Mesa Weather September
Temperatures trend during September in Mesa
September weather in Mesa 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° | 4.1 mm | 9 | |
| Sept. 3 | Sunny | 39° /27° | 0 mm | 9 | |
| Sept. 4 | Sunny | 39° /29° | 0.8 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 | 42° /28° | 0 mm | 10 | |
| Sept. 9 | Sunny | 41° /28° | 0.1 mm | 10 | |
| Sept. 10 | Sunny | 42° /28° | 0.1 mm | 9 | |
| Sept. 11 | Sunny | 39° /29° | 0.9 mm | 9 | |
| Sept. 12 | Thundery outbreaks possible | 37° /27° | 9.9 mm | 9 | |
| Sept. 13 | Sunny | 37° /26° | 1 mm | 8 | |
| Sept. 14 | Sunny | 37° /25° | 0.7 mm | 8 | |
| Sept. 15 | Sunny | 37° /25° | 2.5 mm | 7 | |
| Sept. 16 | Sunny | 37° /24° | 6.9 mm | 7 | |
| Sept. 17 |  Partly cloudy | 35° /24° | 0.9 mm | 7 | |
| Sept. 18 | Sunny | 36° /24° | 0 mm | 8 | |
| Sept. 19 | Sunny | 38° /24° | 0 mm | 9 | |
| Sept. 20 |  Overcast | 36° /24° | 0 mm | 8 | |
| Sept. 21 | Overcast | 35° /23° | 0.9 mm | 7 | |
| Sept. 22 | Partly cloudy | 35° /23° | 1.9 mm | 7 | |
| Sept. 23 | Sunny | 37° /24° | 0 mm | 7 | |
| Sept. 24 | Sunny | 37° /23° | 4.1 mm | 8 | |
| Sept. 25 | Sunny | 31° /23° | 0.1 mm | 7.9 | |
| Sept. 26 | Sunny | 34° /27° | 0 mm | 8 | |
| Sept. 27 | Overcast | 33° /27° | 0 mm | 4 | |
| Sept. 28 |  Light rain shower | 26° /22° | 6.3 mm | 6.6 | |
| Sept. 29 | Sunny | 28° /20° | 4.4 mm | 7 | |
| Sept. 30 | Sunny | 30° /22° | 0 mm | 7 | |
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Mesa in September - FAQ
What are the expected maximum and minimum temperatures in Mesa during September?
How much rainfall should be expected in Mesa during September?
What are the typical wind conditions in Mesa during September?
September rainfall patterns in Mesa
UV exposure in Mesa during September
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Where is Mesa?Get accurate weather forecasts for Mesa, located at latitude 33.422 and longitude -111.823. Stay updated with localized weather information tailored for Mesa.