Natrona County (Casper)
September
Weather in Natrona County, Wyoming for September 2027
Your guide to Natrona County weather in September - trends and predictions
In general, the average temperature in Natrona County at the beginning of September is 26 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 24.3 °C by the end of September.
With an average of 3 rainy days, Natrona County experiences minimal rainfall in September.
Is September a good time to visit Natrona County? check out the best time to travel to Natrona County page.
✨ Is September a good time to visit Natrona County? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
27
Dry days
3
Rainy days
0
Snow days
24°/10°
Temperatures
26 km/h
Avg max wind
42 %
Avg humidity
Natrona County Weather September
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Temperatures trend during September in Natrona County
See the weather trend as well as the moving average line
September weather in Natrona County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 26° /12° | 0.4 mm | 7 | |
| Sept. 2 | Sunny | 27° /13° | 0 mm | 7.6 | |
| Sept. 3 | Sunny | 26° /13° | 0 mm | 7.5 | |
| Sept. 4 | Sunny | 28° /13° | 0 mm | 7.4 | |
| Sept. 5 |  Overcast | 24° /13° | 0 mm | 6 | |
| Sept. 6 | Sunny | 26° /11° | 0 mm | 7 | |
| Sept. 7 |  Thundery outbreaks possible | 26° /12° | 0 mm | 5 | |
| Sept. 8 |  Partly cloudy | 26° /12° | 0 mm | 7.1 | |
| Sept. 9 |  Cloudy | 28° /10° | 0 mm | 7 | |
| Sept. 10 | Sunny | 29° /12° | 0 mm | 6.9 | |
| Sept. 11 |  Patchy rain possible | 28° /12° | 0.1 mm | 6 | |
| Sept. 12 | Overcast | 26° /10° | 0 mm | 5 | |
| Sept. 13 | Overcast | 25° /10° | 0.5 mm | 5 | |
| Sept. 14 | Overcast | 24° /9° | 0.2 mm | 6 | |
| Sept. 15 | Partly cloudy | 25° /8° | 0 mm | 6 | |
| Sept. 16 | Patchy rain possible | 24° /11° | 0.6 mm | 4 | |
| Sept. 17 |  Moderate rain | 17° /11° | 18 mm | 3 | |
| Sept. 18 |  Light rain | 21° /10° | 5 mm | 6 | |
| Sept. 19 | Patchy rain possible | 23° /8° | 1.6 mm | 5 | |
| Sept. 20 | Patchy rain possible | 22° /8° | 1.5 mm | 5 | |
| Sept. 21 | Overcast | 19° /8° | 0 mm | 5 | |
| Sept. 22 | Sunny | 21° /7° | 0.4 mm | 5 | |
| Sept. 23 | Cloudy | 20° /8° | 0 mm | 3 | |
| Sept. 24 | Sunny | 22° /8° | 0 mm | 5 | |
| Sept. 25 | Sunny | 25° /9° | 0.2 mm | 5.5 | |
| Sept. 26 | Sunny | 27° /12° | 0 mm | 5.4 | |
| Sept. 27 | Sunny | 25° /9° | 0.1 mm | 5 | |
| Sept. 28 | Partly cloudy | 24° /11° | 0.2 mm | 5 | |
| Sept. 29 | Sunny | 25° /10° | 0 mm | 5.1 | |
| Sept. 30 | Sunny | 21° /7° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Natrona 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 Natrona County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Natrona County in September - FAQ
What are the expected maximum and minimum temperatures in Natrona County during September?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Natrona County during September?
In September, Natrona County can expect light to moderate rainfall, totaling 28.8 mm across approximately 3 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Natrona County during September?
The average wind speed in Natrona County during September is 26 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Natrona County
Explore the daily rainfall trends and prepare for Natrona Countys September weather 💧
Typically, Natrona County has 3 rainy days in September with a total of 28.8 mm of rainfall.
UV exposure in Natrona County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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