Sheridan County (Sheridan)
September
Weather in Sheridan County, Wyoming for September 2026
Your guide to Sheridan County weather in September - trends and predictions
Until now, September 2026 in Sheridan County has been nearly identical to the historical average, with a temperature of 26 °F (showing only a slight deviation of 0 °F).
The forecast for the next days in Sheridan County predicts temperatures to be around 23 °F, close to the historical average.
In general, the average temperature in Sheridan County at the beginning of September is 28.7 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 23.6 °F by the end of September.
With an average of 4 rainy days, Sheridan County experiences minimal rainfall in September.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
26
Dry days
4
Rainy days
0
Snow days
25°/12°
Temperatures
19 km/h
Avg max wind
39 %
Avg humidity
Sheridan County Weather September
Move between months or click on a day
Temperatures trend during September in Sheridan County
See the weather trend as well as the moving average line
September weather in Sheridan County day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 30° /12° | 0.1 mm | 5 | |
| Sept. 2 | Sunny | 33° /16° | 0 mm | 8 | |
| Sept. 3 |  Heavy rain at times | 28° /14° | 4.1 mm | 6 | |
| Sept. 4 |  Patchy light rain with thunder | 27° /12° | 0.2 mm | 6 | |
| Sept. 5 | Sunny | 25° /9° | 0 mm | 6 | |
| Sept. 6 | Sunny | 28° /10° | 0 mm | 7 | |
| Sept. 7 | Sunny | 30° /14° | 0 mm | 7 | |
| Sept. 8 | Sunny | 29° /13° | 0 mm | 7 | |
| Sept. 9 |  Overcast | 28° /14° | 0 mm | 7 | |
| Sept. 10 | Sunny | 31° /13° | 0 mm | 8 | |
| Sept. 11 |  Partly cloudy | 28° /14° | 0.4 mm | 6 | |
| Sept. 12 |  Patchy rain possible | 25° /10° | 0.1 mm | 5 | |
| Sept. 13 | Sunny | 22° /8° | 19.7 mm | 4 | |
| Sept. 14 |  Cloudy | 24° /10° | 0.1 mm | 6 | |
| Sept. 15 | Overcast | 25° /10° | 0 mm | 6 | |
| Sept. 16 | Patchy rain possible | 23° /10° | 0 mm | 5 | |
| Sept. 17 | Overcast | 22° /11° | 2.4 mm | 4 | |
| Sept. 18 | Overcast | 24° /9° | 1.3 mm | 5 | |
| Sept. 19 | Sunny | 21° /10° | 0.6 mm | 4 | |
| Sept. 20 | Sunny | 22° /10° | 3.9 mm | 5 | |
| Sept. 21 | Partly cloudy | 21° /9° | 0 mm | 5 | |
| Sept. 22 | Sunny | 22° /7° | 12.3 mm | 5 | |
| Sept. 23 | Sunny | 24° /14° | 0.2 mm | 5 | |
| Sept. 24 | Sunny | 27° /15° | 0 mm | 5.5 | |
| Sept. 25 | Sunny | 29° /15° | 0 mm | 5.3 | |
| Sept. 26 | Partly cloudy | 24° /12° | 0 mm | 5.1 | |
| Sept. 27 | Overcast | 29° /10° | 0.1 mm | 6 | |
| Sept. 28 | Overcast | 18° /9° | 5.9 mm | 4 | |
| Sept. 29 | Sunny | 15° /7° | 0 mm | 5 | |
| Sept. 30 | Sunny | 23° /9° | 0 mm | 6 | |
| Next | |||||
Important Notice
Our weather forecast for Sheridan 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 Sheridan County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Sheridan County in September - FAQ
What are the expected maximum and minimum temperatures in Sheridan County during September?
Enjoy moderate daytime temperatures of up to 25° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Sheridan County during September?
Moderate rainfall is anticipated in Sheridan County during September, with a total of 58 mm spread over approximately 4 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Sheridan County during September?
The average wind speed in Sheridan County during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Sheridan County
Explore the daily rainfall trends and prepare for Sheridan Countys September weather 💧
Typically, Sheridan County has 4 rainy days in September with a total of 58 mm of rainfall.
UV exposure in Sheridan County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Top locations in Sheridan County
Select a location for an accurate weather forecast
More Locations Quick links
More Sheridan County weather pages
You are here
Where is Sheridan County?Get accurate weather forecasts for Sheridan County, located at latitude 44.797 and longitude -106.956. Stay updated with localized weather information tailored for Sheridan County.
Found a mistake?
We appreciate your attention to details. Tell us here.