Deschutes County (Bend)
September
Weather in Deschutes County, Oregon for September 2026
Your guide to Deschutes County weather in September - trends and predictions
Until now, September 2026 in Deschutes County is cooler than usual, with temperatures averaging 20.6 °F, this is 3.2 °F below the typical seasonal average.
The forecast for the next days in Deschutes County predicts temperatures to be around 22 °F, close to the historical average.
In general, the average temperature in Deschutes County at the beginning of September is 26.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.6 °F by the end of September.
With an average of 5 rainy days, Deschutes County experiences minimal rainfall in September.
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Temperatures
Rain 🌧️
More
25
Dry days
5
Rainy days
0
Snow days
24°/12°
Temperatures
18 km/h
Avg max wind
47 %
Avg humidity
Deschutes County Weather September
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Temperatures trend during September in Deschutes County
See the weather trend as well as the moving average line
September weather in Deschutes County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Cloudy | 31° /14° | 0.1 mm | 6 | |
| Sept. 2 |  Moderate or heavy rain shower | 26° /12° | 13.6 mm | 6 | |
| Sept. 3 |  Overcast | 25° /11° | 3.1 mm | 6 | |
| Sept. 4 | Overcast | 26° /12° | 0.3 mm | 6 | |
| Sept. 5 |  Sunny | 27° /12° | 0.4 mm | 6 | |
| Sept. 6 |  Partly cloudy | 25° /12° | 45.3 mm | 5 | |
| Sept. 7 | Overcast | 25° /12° | 0 mm | 6 | |
| Sept. 8 | Overcast | 26° /10° | 10.5 mm | 6 | |
| Sept. 9 | Partly cloudy | 25° /10° | 0 mm | 6 | |
| Sept. 10 | Sunny | 25° /11° | 3 mm | 6 | |
| Sept. 11 | Moderate or heavy rain shower | 19° /9° | 6.9 mm | 5 | |
| Sept. 12 | Sunny | 21° /7° | 1.4 mm | 5 | |
| Sept. 13 | Sunny | 20° /8° | 0 mm | 6 | |
| Sept. 14 | Partly cloudy | 19° /7° | 0 mm | 5 | |
| Sept. 15 |  Patchy rain possible | 19° /6° | 0.4 mm | 4 | |
| Sept. 16 | Overcast | 21° /9° | 0.8 mm | 4 | |
| Sept. 17 | Overcast | 22° /11° | 0 mm | 6 | |
| Sept. 18 | Sunny | 23° /9° | 0 mm | 5.6 | |
| Sept. 19 | Sunny | 25° /10° | 0 mm | 5.5 | |
| Sept. 20 | Sunny | 26° /12° | 0 mm | 6 | |
| Sept. 21 | Sunny | 23° /10° | 0 mm | 6 | |
| Sept. 22 | Sunny | 19° /6° | 0 mm | 5 | |
| Sept. 23 | Sunny | 26° /11° | 0 mm | 7 | |
| Sept. 24 | Sunny | 29° /12° | 0 mm | 7 | |
| Sept. 25 | Overcast | 29° /15° | 0 mm | 6 | |
| Sept. 26 | Overcast | 21° /11° | 0 mm | 5 | |
| Sept. 27 | Overcast | 17° /7° | 0 mm | 5 | |
| Sept. 28 | Overcast | 14° /5° | 0 mm | 4 | |
| Sept. 29 | Overcast | 15° /4° | 0 mm | 4 | |
| Sept. 30 | Sunny | 19° /5° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Deschutes County 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 Deschutes County forecast closer to your planned date for the most up-to-date weather information.
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Deschutes County in September - FAQ
What are the expected maximum and minimum temperatures in Deschutes County during September?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Deschutes County during September?
In September, Deschutes County can expect light to moderate rainfall, totaling 35.6 mm across approximately 5 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Deschutes County during September?
The average wind speed in Deschutes County during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Deschutes County
Explore the daily rainfall trends and prepare for Deschutes Countys September weather 💧
Typically, Deschutes County has 5 rainy days in September with a total of 35.6 mm of rainfall.
UV exposure in Deschutes County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Deschutes County?Get accurate weather forecasts for Deschutes County, located at latitude 44.058 and longitude -121.315. Stay updated with localized weather information tailored for Deschutes County.
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