Sheridan (WY)
September
Weather in Sheridan, Wyoming for September 2025
Your guide to Sheridan weather in September - trends and predictions
In general, the average temperature in Sheridan at the beginning of September is 29.3 °F. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 27.1 °F by the end of September.
Precipitation in Sheridan during September is a rare event, with an average of fewer than 2 rainy days.
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Temperatures
Rain 🌧️
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29
Dry days
1
Rainy days
0
Snow days
27°/13°
Temperatures
20 km/h
Avg max wind
32 %
Avg humidity
Sheridan Weather September
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Temperatures trend during September in Sheridan
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September weather in Sheridan day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 33° /15° | 0 mm | 8 | |
| Sept. 2 | Sunny | 34° /20° | 0 mm | 8 | |
| Sept. 3 |  Heavy rain at times | 30° /17° | 12.2 mm | 7 | |
| Sept. 4 |  Patchy light rain with thunder | 23° /16° | 0.6 mm | 5 | |
| Sept. 5 | Sunny | 26° /13° | 0 mm | 7 | |
| Sept. 6 | Sunny | 29° /14° | 0 mm | 7 | |
| Sept. 7 | Sunny | 30° /16° | 0 mm | 8 | |
| Sept. 8 | Sunny | 33° /18° | 0 mm | 8 | |
| Sept. 9 |  Partly cloudy | 31° /19° | 0 mm | 8 | |
| Sept. 10 | Sunny | 30° /17° | 0 mm | 8 | |
| Sept. 11 | Partly cloudy | 29° /17° | 0.1 mm | 7 | |
| Sept. 12 |  Patchy rain possible | 26° /12° | 0 mm | 6 | |
| Sept. 13 | Sunny | 20° /8° | 0 mm | 6 | |
| Sept. 14 |  Cloudy | 26° /10° | 0 mm | 6 | |
| Sept. 15 | Partly cloudy | 29° /14° | 0 mm | 7 | |
| Sept. 16 | Patchy rain possible | 28° /15° | 0.1 mm | 6 | |
| Sept. 17 |  Overcast | 27° /12° | 0 mm | 6 | |
| Sept. 18 | Overcast | 22° /9° | 0 mm | 5 | |
| Sept. 19 | Sunny | 22° /9° | 0 mm | 6 | |
| Sept. 20 | Sunny | 26° /9° | 0 mm | 7 | |
| Sept. 21 | Partly cloudy | 16° /5° | 0 mm | 5 | |
| Sept. 22 | Sunny | 22° /5° | 0 mm | 6 | |
| Sept. 23 | Overcast | 19° /10° | 0 mm | 4 | |
| Sept. 24 | Sunny | 25° /10° | 0 mm | 6 | |
| Sept. 25 | Sunny | 33° /13° | 0 mm | 8 | |
| Sept. 26 | Sunny | 27° /14° | 0 mm | 7 | |
| Sept. 27 | Sunny | 29° /12° | 0 mm | 7 | |
| Sept. 28 | Sunny | 30° /15° | 0 mm | 8 | |
| Sept. 29 | Sunny | 33° /14° | 0 mm | 8 | |
| Sept. 30 | Sunny | 13° /3° | 0 mm | 4 | |
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Important Notice
Our weather forecast for Sheridan 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 forecast closer to your planned date for the most up-to-date weather information.
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Sheridan in September - FAQ
What are the expected maximum and minimum temperatures in Sheridan during September?
Enjoy moderate daytime temperatures of up to 27° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Sheridan during September?
Expect minimal rainfall in Sheridan during September, with a total of 13 mm over approximately 1 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Sheridan during September?
The average wind speed in Sheridan during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Sheridan
Explore the daily rainfall trends and prepare for Sheridans September weather 💧
UV exposure in Sheridan during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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