Kootenai County (Coeur d'Alene)
September
Weather in Kootenai County, Idaho for September 2027
Your guide to Kootenai County weather in September - trends and predictions
In general, the average temperature in Kootenai County at the beginning of September is 28.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 20 °C by the end of September.
Kootenai County experiences moderate rainfall in September, with an average of 7 rainy days and a total precipitation of 94.1 mm.
Is September a good time to visit Kootenai County? check out the best time to travel to Kootenai County page.
✨ Is September a good time to visit Kootenai County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
23
Dry days
7
Rainy days
0
Snow days
23°/12°
Temperatures
11 km/h
Avg max wind
51 %
Avg humidity
Kootenai County Weather September
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Temperatures trend during September in Kootenai County
See the weather trend as well as the moving average line
September weather in Kootenai County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Partly cloudy | 33° /16° | 0 mm | 6 | |
| Sept. 2 |  Moderate rain | 29° /15° | 12.9 mm | 6 | |
| Sept. 3 | Moderate rain | 26° /16° | 14.3 mm | 5 | |
| Sept. 4 | Moderate rain | 26° /15° | 20.8 mm | 5 | |
| Sept. 5 |  Sunny | 28° /12° | 0 mm | 6.2 | |
| Sept. 6 | Sunny | 30° /12° | 0.5 mm | 6 | |
| Sept. 7 | Moderate rain | 26° /15° | 15.5 mm | 5 | |
| Sept. 8 |  Light rain | 28° /12° | 3.5 mm | 5.9 | |
| Sept. 9 | Partly cloudy | 26° /14° | 0.9 mm | 5.8 | |
| Sept. 10 |  Patchy rain possible | 26° /13° | 1.4 mm | 5 | |
| Sept. 11 | Light rain | 20° /12° | 4 mm | 4 | |
| Sept. 12 | Patchy rain possible | 21° /11° | 1.7 mm | 3 | |
| Sept. 13 | Light rain | 21° /11° | 3 mm | 4 | |
| Sept. 14 | Light rain | 18° /9° | 3.7 mm | 4 | |
| Sept. 15 |  Overcast | 19° /9° | 0.9 mm | 4 | |
| Sept. 16 | Sunny | 24° /9° | 0 mm | 5.2 | |
| Sept. 17 | Light rain | 22° /13° | 2.6 mm | 5 | |
| Sept. 18 | Overcast | 24° /12° | 0 mm | 5 | |
| Sept. 19 |  Cloudy | 25° /13° | 0 mm | 4.9 | |
| Sept. 20 | Sunny | 23° /12° | 0 mm | 4.8 | |
| Sept. 21 | Overcast | 22° /10° | 0.5 mm | 4.8 | |
| Sept. 22 | Overcast | 20° /11° | 0.7 mm | 4 | |
| Sept. 23 | Sunny | 23° /10° | 0 mm | 4.6 | |
| Sept. 24 | Sunny | 26° /12° | 0 mm | 4.5 | |
| Sept. 25 | Light rain | 23° /12° | 2.6 mm | 4.4 | |
| Sept. 26 | Cloudy | 17° /7° | 0 mm | 4 | |
| Sept. 27 | Overcast | 19° /8° | 0 mm | 4 | |
| Sept. 28 | Cloudy | 22° /10° | 0 mm | 4.1 | |
| Sept. 29 | Patchy rain possible | 17° /10° | 0.3 mm | 3 | |
| Sept. 30 | Light rain | 16° /8° | 4.2 mm | 3 | |
| Next | |||||
Important Notice
Our weather forecast for Kootenai 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 Kootenai County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Kootenai County in September - FAQ
What are the expected maximum and minimum temperatures in Kootenai County during September?
Enjoy moderate daytime temperatures of up to 23° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Kootenai County during September?
Moderate rainfall is anticipated in Kootenai County during September, with a total of 94.1 mm spread over approximately 7 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Kootenai County during September?
The average wind speed in Kootenai County during September is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Kootenai County
Explore the daily rainfall trends and prepare for Kootenai Countys September weather 💧
Typically, Kootenai County has 7 rainy days in September with a total of 94.1 mm of rainfall.
UV exposure in Kootenai County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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