Josephine County (Grants Pass)
September
Weather in Josephine County, Oregon for September 2025
Your guide to Josephine County weather in September - trends and predictions
Until now, September 2025 in Josephine County is slightly cooler than the historical average by -1.8 °F.
The forecast for the next days in Josephine County predicts a temperature of 23.8 °F, which is cooler than the historical average.
In general, the average temperature in Josephine County at the beginning of September is 32.9 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.4 °F by the end of September.
With an average of 3 rainy days, Josephine County experiences minimal rainfall in September.
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Temperatures
Rain 🌧️
More
27
Dry days
3
Rainy days
0
Snow days
28°/11°
Temperatures
11 km/h
Avg max wind
56 %
Avg humidity
Josephine County Weather September
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Temperatures trend during September in Josephine County
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September weather in Josephine County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Cloudy | 32° /13° | 0 mm | 7 | |
| Sept. 2 |  Sunny | 32° /12° | 0 mm | 8 | |
| Sept. 3 |  Partly cloudy | 33° /12° | 0 mm | 9 | |
| Sept. 4 | Sunny | 35° /16° | 0 mm | 8 | |
| Sept. 5 | Sunny | 35° /17° | 0 mm | 8 | |
| Sept. 6 | Cloudy | 34° /17° | 0 mm | 8 | |
| Sept. 7 |  Overcast | 29° /14° | 0 mm | 6 | |
| Sept. 8 | Sunny | 27° /14° | 4.3 mm | 7 | |
| Sept. 9 | Sunny | 27° /12° | 0 mm | 7 | |
| Sept. 10 | Sunny | 24° /12° | 0 mm | 6 | |
| Sept. 11 |  Moderate rain at times | 18° /9° | 1.6 mm | 4 | |
| Sept. 12 | Overcast | 24° /8° | 0 mm | 6 | |
| Sept. 13 | Overcast | 28° /10° | 0 mm | 7 | |
| Sept. 14 | Partly cloudy | 24° /9° | 2.7 mm | 6 | |
| Sept. 15 | Overcast | 23° /9° | 0 mm | 6 | |
| Sept. 16 | Overcast | 28° /10° | 0 mm | 7 | |
| Sept. 17 | Sunny | 31° /10° | 0 mm | 1.5 | |
| Sept. 18 | Overcast | 19° /11° | 0 mm | 1.4 | |
| Sept. 19 | Sunny | 30° /8° | 0 mm | 1.4 | |
| Sept. 20 | Sunny | 31° /8° | 0 mm | 1.4 | |
| Sept. 21 | Sunny | 29° /7° | 0 mm | 0 | |
| Sept. 22 | Sunny | 31° /10° | 0 mm | 5 | |
| Sept. 23 |  Patchy rain possible | 19° /8° | 0.4 mm | 3 | |
| Sept. 24 | Patchy rain possible | 21° /5° | 3.3 mm | 3 | |
| Sept. 25 | Patchy rain possible | 12° /4° | 4.5 mm | 2 | |
| Sept. 26 |  Moderate rain | 13° /5° | 6.6 mm | 2 | |
| Sept. 27 | Patchy rain possible | 18° /4° | 0.5 mm | 3 | |
| Sept. 28 | Sunny | 24° /3° | 0 mm | 4 | |
| Sept. 29 | Sunny | 27° /5° | 0 mm | 4 | |
| Sept. 30 | Sunny | 28° /6° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Josephine 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 Josephine County forecast closer to your planned date for the most up-to-date weather information.
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Josephine County in September - FAQ
What are the expected maximum and minimum temperatures in Josephine County during September?
Enjoy moderate daytime temperatures of up to 28° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Josephine County during September?
Expect minimal rainfall in Josephine County during September, with a total of 11.8 mm over approximately 3 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Josephine County during September?
The average wind speed in Josephine County during September is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Josephine County
Explore the daily rainfall trends and prepare for Josephine Countys September weather 💧
UV exposure in Josephine County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Josephine County?Get accurate weather forecasts for Josephine County, located at latitude 42.439 and longitude -123.331. Stay updated with localized weather information tailored for Josephine County.
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