Washoe County (Reno)
September
Weather in Washoe County for September 2025
Your guide to Washoe County weather in September - trends and predictions
In general, the average temperature in Washoe County at the beginning of September is 27.1 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 25.4 °F by the end of September.
Washoe County sees moderate rainfall in September, averaging 6 rainy days.
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24
Dry days
6
Rainy days
0
Snow days
25°/9°
Temperatures
21 km/h
Avg max wind
39 %
Avg humidity
Washoe County in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  26° | 2  26° | 3  23° | 4  27° | 5  30° | 6  29° | 7 29° |
| 8 29° | 9 29° | 10 29° | 11 27° | 12 25° | 13 27° | 14 28° |
| 15 26° | 16 23° | 17 22° | 18 23° | 19 24° | 20 26° | 21 21° |
| 22 23° | 23 25° | 24 26° | 25 26° | 26 26° | 27 27° | 28 27° |
| 29 26° | 30 20° |
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Temperatures trend during September in Washoe County
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 | Overcast | 26° /13° | 0 mm | 7 | |
| Sept. 2 | Cloudy | 26° /13° | 0 mm | 6 | |
| Sept. 3 | Patchy light rain with thunder | 23° /10° | 3.5 mm | 6 | |
| Sept. 4 | Partly cloudy | 27° /10° | 0 mm | 7 | |
| Sept. 5 | Patchy rain possible | 30° /12° | 0.3 mm | 7 | |
| Sept. 6 | Sunny | 29° /14° | 0.9 mm | 7 | |
| Sept. 7 | Sunny | 29° /14° | 0 mm | 7 | |
| Sept. 8 | Partly cloudy | 29° /12° | 0 mm | 8 | |
| Sept. 9 | Sunny | 29° /10° | 0 mm | 8 | |
| Sept. 10 | Sunny | 29° /11° | 0 mm | 7 | |
| Sept. 11 | Sunny | 27° /11° | 0 mm | 6 | |
| Sept. 12 | Partly cloudy | 25° /9° | 0 mm | 7 | |
| Sept. 13 | Partly cloudy | 27° /10° | 0 mm | 7 | |
| Sept. 14 | Sunny | 28° /11° | 0 mm | 7 | |
| Sept. 15 | Sunny | 26° /10° | 0.1 mm | 7 | |
| Sept. 16 | Sunny | 23° /9° | 1.2 mm | 6 | |
| Sept. 17 | Partly cloudy | 22° /8° | 0.1 mm | 6 | |
| Sept. 18 | Patchy rain possible | 23° /8° | 1.2 mm | 5 | |
| Sept. 19 | Partly cloudy | 24° /8° | 0 mm | 6 | |
| Sept. 20 | Sunny | 26° /8° | 0.6 mm | 7 | |
| Sept. 21 | Patchy light rain with thunder | 21° /6° | 1.4 mm | 6 | |
| Sept. 22 | Partly cloudy | 23° /6° | 0 mm | 7 | |
| Sept. 23 | Sunny | 25° /9° | 0 mm | 7 | |
| Sept. 24 | Overcast | 26° /8° | 0 mm | 6 | |
| Sept. 25 | Cloudy | 26° /10° | 0 mm | 6 | |
| Sept. 26 | Sunny | 26° /7° | 0 mm | 7 | |
| Sept. 27 | Partly cloudy | 27° /8° | 0 mm | 7 | |
| Sept. 28 | Sunny | 27° /9° | 0 mm | 7 | |
| Sept. 29 | Overcast | 26° /9° | 0 mm | 6 | |
| Sept. 30 | Patchy light rain with thunder | 20° /7° | 6.6 mm | 5 | |
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Important Notice
Our weather forecast for Washoe 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 Washoe County forecast closer to your planned date for the most up-to-date weather information.
Washoe County in September - FAQ
What are the expected maximum and minimum temperatures in Washoe County during September?
Enjoy moderate daytime temperatures of up to 25° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Washoe County during September?
In September, Washoe County can expect light to moderate rainfall, totaling 27.1 mm across approximately 6 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Washoe County during September?
The average wind speed in Washoe County during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Washoe County
Explore the daily rainfall trends and prepare for Washoe Countys September weather 💧
UV exposure in Washoe County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Washoe County?Get accurate weather forecasts for Washoe County, located at latitude 39.53 and longitude -119.814. Stay updated with localized weather information tailored for Washoe County.
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