Weather in Wenatchee, Washington for September 2026
Until now, September 2026 in Wenatchee is cooler than usual, with temperatures averaging 23.7 °F, this is 3.8 °F below the typical seasonal average.
The forecast for the next days in Wenatchee predicts temperatures to be around 17 °F, close to the historical average.
In general, the average temperature in Wenatchee at the beginning of September is 31 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 13.9 °F by the end of September.
Precipitation in Wenatchee during September is a rare event, with an average of fewer than 2 rainy days.
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Wenatchee Weather September
Temperatures trend during September in Wenatchee
September weather in Wenatchee day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Overcast | 34° /14° | 0 mm | 6 | |
| Sept. 2 |  Partly cloudy | 32° /13° | 2.4 mm | 6 | |
| Sept. 3 |  Sunny | 30° /13° | 1.2 mm | 7 | |
| Sept. 4 | Sunny | 31° /13° | 0.2 mm | 7 | |
| Sept. 5 | Sunny | 30° /13° | 0 mm | 7 | |
| Sept. 6 | Overcast | 31° /14° | 0 mm | 6 | |
| Sept. 7 |  Cloudy | 29° /14° | 0 mm | 5 | |
| Sept. 8 | Partly cloudy | 30° /12° | 0 mm | 7 | |
| Sept. 9 | Partly cloudy | 27° /11° | 0 mm | 5 | |
| Sept. 10 | Partly cloudy | 29° /10° | 0 mm | 5 | |
| Sept. 11 |  Patchy rain possible | 25° /10° | 0 mm | 5 | |
| Sept. 12 | Partly cloudy | 25° /9° | 0.7 mm | 4 | |
| Sept. 13 | Sunny | 23° /8° | 8.8 mm | 5 | |
| Sept. 14 | Partly cloudy | 21° /7° | 0 mm | 5 | |
| Sept. 15 | Sunny | 21° /6° | 0.3 mm | 5 | |
| Sept. 16 | Sunny | 25° /7° | 0 mm | 6 | |
| Sept. 17 | Sunny | 27° /10° | 0 mm | 6 | |
| Sept. 18 | Sunny | 26° /9° | 0 mm | 6 | |
| Sept. 19 | Sunny | 27° /10° | 0 mm | 6 | |
| Sept. 20 | Sunny | 25° /10° | 0 mm | 6 | |
| Sept. 21 | Sunny | 26° /14° | 0 mm | 4.7 | |
| Sept. 22 | Sunny | 21° /12° | 0 mm | 4.4 | |
| Sept. 23 | Overcast | 19° /11° | 0 mm | 3.8 | |
| Sept. 24 | Overcast | 17° /10° | 1.3 mm | 3.2 | |
| Sept. 25 | Sunny | 12° /8° | 6.6 mm | 3.8 | |
| Sept. 26 | Sunny | 14° /4° | 0 mm | 4 | |
| Sept. 27 | Overcast | 12° /9° | 0.2 mm | 4 | |
| Sept. 28 | Overcast | 14° /7° | 0 mm | 4 | |
| Sept. 29 | Patchy rain possible | 14° /7° | 0.1 mm | 3 | |
| Sept. 30 | Sunny | 14° /5° | 0 mm | 4 | |
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Wenatchee in September - FAQ
What are the expected maximum and minimum temperatures in Wenatchee during September?
How much rainfall should be expected in Wenatchee during September?
What are the typical wind conditions in Wenatchee during September?
September rainfall patterns in Wenatchee
UV exposure in Wenatchee during September
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Where is Wenatchee?Get accurate weather forecasts for Wenatchee, located at latitude 47.423 and longitude -120.31. Stay updated with localized weather information tailored for Wenatchee.