Spokane County (Spokane)
September
Weather in Spokane County, Washington for September 2027
Your guide to Spokane County weather in September - trends and predictions
In general, the average temperature in Spokane County at the beginning of September is 28.2 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20.3 °C by the end of September.
With an average of 4 rainy days, Spokane County experiences minimal rainfall in September.
Is September a good time to visit Spokane County? check out the best time to travel to Spokane County page.
✨ Is September a good time to visit Spokane County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
26
Dry days
4
Rainy days
0
Snow days
24°/12°
Temperatures
14 km/h
Avg max wind
45 %
Avg humidity
Spokane County Weather September
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Temperatures trend during September in Spokane County
See the weather trend as well as the moving average line
September weather in Spokane County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Overcast | 32° /16° | 0.1 mm | 6 | |
| Sept. 2 |  Light rain | 30° /17° | 8.9 mm | 6 | |
| Sept. 3 | Light rain | 27° /17° | 6.8 mm | 6 | |
| Sept. 4 | Light rain | 26° /16° | 6.7 mm | 6 | |
| Sept. 5 |  Sunny | 27° /13° | 0 mm | 6.2 | |
| Sept. 6 |  Cloudy | 29° /13° | 0 mm | 6 | |
| Sept. 7 |  Moderate rain | 27° /15° | 11.2 mm | 5 | |
| Sept. 8 |  Patchy rain possible | 28° /15° | 1.8 mm | 5.9 | |
| Sept. 9 | Patchy rain possible | 27° /15° | 1.9 mm | 5.9 | |
| Sept. 10 | Sunny | 28° /15° | 0.2 mm | 5 | |
| Sept. 11 | Light rain | 22° /14° | 6 mm | 5 | |
| Sept. 12 | Overcast | 24° /13° | 0.1 mm | 4 | |
| Sept. 13 | Light rain | 23° /12° | 4.3 mm | 5 | |
| Sept. 14 | Patchy rain possible | 21° /11° | 1.2 mm | 5 | |
| Sept. 15 | Sunny | 22° /10° | 0 mm | 5 | |
| Sept. 16 | Sunny | 27° /11° | 0 mm | 5.2 | |
| Sept. 17 | Light rain | 24° /14° | 3.4 mm | 5.1 | |
| Sept. 18 | Cloudy | 25° /13° | 0 mm | 5 | |
| Sept. 19 | Overcast | 25° /11° | 0 mm | 4.9 | |
| Sept. 20 | Sunny | 23° /11° | 0.2 mm | 4.8 | |
| Sept. 21 | Overcast | 21° /11° | 0.3 mm | 4 | |
| Sept. 22 | Overcast | 22° /11° | 0 mm | 4.7 | |
| Sept. 23 | Overcast | 23° /10° | 0 mm | 4.6 | |
| Sept. 24 | Overcast | 25° /11° | 0 mm | 4.5 | |
| Sept. 25 | Patchy rain possible | 25° /13° | 1 mm | 4.4 | |
| Sept. 26 |  Patchy light rain with thunder | 18° /8° | 1.2 mm | 4.3 | |
| Sept. 27 | Patchy rain possible | 19° /8° | 1.7 mm | 4 | |
| Sept. 28 | Light rain shower | 21° /9° | 1.3 mm | 4.1 | |
| Sept. 29 | Overcast | 17° /10° | 0.2 mm | 3 | |
| Sept. 30 | Overcast | 17° /8° | 0.3 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Spokane 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 Spokane County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Spokane County in September - FAQ
What are the expected maximum and minimum temperatures in Spokane 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 Spokane County during September?
Moderate rainfall is anticipated in Spokane County during September, with a total of 58.7 mm spread over approximately 4 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Spokane County during September?
The average wind speed in Spokane County during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Spokane County
Explore the daily rainfall trends and prepare for Spokane Countys September weather 💧
Typically, Spokane County has 4 rainy days in September with a total of 58.7 mm of rainfall.
UV exposure in Spokane County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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