Weather in Salem, Oregon for September 2026
Until now, September 2026 in Salem is cooler than usual, with temperatures averaging 21.9 °F, this is 3.8 °F below the typical seasonal average.
The forecast for the next days in Salem predicts temperatures to be around 24 °F, close to the historical average.
In general, the average temperature in Salem at the beginning of September is 26.9 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 23.7 °F by the end of September.
The climate of Salem in September is notably wet, with an average of 12 rainy days, and a total of 54 mm of precipitation.
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Salem Weather September
Temperatures trend during September in Salem
September weather in Salem day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Overcast | 28° /13° | 0.1 mm | 5 | |
| Sept. 2 |  Thundery outbreaks possible | 26° /12° | 25 mm | 5 | |
| Sept. 3 |  Mist | 26° /13° | 26.7 mm | 6 | |
| Sept. 4 | Mist | 27° /11° | 10.4 mm | 6 | |
| Sept. 5 | Mist | 29° /12° | 0.1 mm | 6 | |
| Sept. 6 |  Partly cloudy | 26° /12° | 1.5 mm | 6 | |
| Sept. 7 | Mist | 26° /12° | 0 mm | 6 | |
| Sept. 8 |  Sunny | 26° /11° | 5.2 mm | 6 | |
| Sept. 9 | Mist | 26° /12° | 1.1 mm | 6 | |
| Sept. 10 | Partly cloudy | 26° /12° | 0 mm | 6 | |
| Sept. 11 | Overcast | 21° /11° | 4.4 mm | 4 | |
| Sept. 12 | Mist | 23° /11° | 1.2 mm | 5 | |
| Sept. 13 | Mist | 23° /9° | 0.2 mm | 5 | |
| Sept. 14 |  Cloudy | 24° /10° | 0 mm | 6 | |
| Sept. 15 | Mist | 25° /9° | 0.1 mm | 5 | |
| Sept. 16 | Sunny | 29° /10° | 0 mm | 7 | |
| Sept. 17 | Overcast | 23° /11° | 4.9 mm | 5 | |
| Sept. 18 | Sunny | 25° /11° | 0 mm | 5 | |
| Sept. 19 | Partly cloudy | 25° /11° | 0 mm | 5 | |
| Sept. 20 | Sunny | 27° /11° | 0 mm | 4.9 | |
| Sept. 21 | Sunny | 23° /11° | 0 mm | 5.1 | |
| Sept. 22 | Sunny | 23° /8° | 0 mm | 6 | |
| Sept. 23 | Sunny | 28° /11° | 0 mm | 7 | |
| Sept. 24 | Sunny | 31° /14° | 0 mm | 8 | |
| Sept. 25 | Overcast | 30° /15° | 0 mm | 7 | |
| Sept. 26 | Overcast | 18° /11° | 1 mm | 4 | |
| Sept. 27 | Sunny | 18° /8° | 0 mm | 5 | |
| Sept. 28 | Sunny | 23° /6° | 0 mm | 6 | |
| Sept. 29 | Sunny | 24° /7° | 0 mm | 6 | |
| Sept. 30 | Overcast | 22° /8° | 0 mm | 6 | |
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Salem in September - FAQ
What are the expected maximum and minimum temperatures in Salem during September?
How much rainfall should be expected in Salem during September?
What are the typical wind conditions in Salem during September?
September rainfall patterns in Salem
UV exposure in Salem during September
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Where is Salem?Get accurate weather forecasts for Salem, located at latitude 44.943 and longitude -123.035. Stay updated with localized weather information tailored for Salem.