Salt Lake County (Salt Lake City)
September
Weather in Salt Lake County, Utah for September 2026
Your guide to Salt Lake County weather in September - trends and predictions
Until now, September 2026 in Salt Lake County has been nearly identical to the historical average, with a temperature of 28.3 °F (showing only a slight deviation of 0.4 °F).
The forecast for the coming days of September 2026 predicts a temperature of 25.7 °F , which is warmer than usual.
In general, the average temperature in Salt Lake County at the beginning of September is 30.9 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 25.9 °F by the end of September.
With an average of 4 rainy days, Salt Lake County experiences minimal rainfall in September.
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Temperatures
Rain 🌧️
More
26
Dry days
4
Rainy days
0
Snow days
27°/12°
Temperatures
18 km/h
Avg max wind
36 %
Avg humidity
Salt Lake County Weather September
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Temperatures trend during September in Salt Lake County
See the weather trend as well as the moving average line
September weather in Salt Lake County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 33° /14° | 4.1 mm | 8 | |
| Sept. 2 | Sunny | 32° /16° | 1.2 mm | 8 | |
| Sept. 3 | Sunny | 31° /15° | 1.8 mm | 8 | |
| Sept. 4 | Sunny | 29° /15° | 0.6 mm | 7 | |
| Sept. 5 | Sunny | 30° /14° | 0 mm | 8 | |
| Sept. 6 | Sunny | 31° /15° | 0.6 mm | 8 | |
| Sept. 7 | Sunny | 30° /15° | 0 mm | 8 | |
| Sept. 8 | Sunny | 31° /14° | 0 mm | 8 | |
| Sept. 9 | Sunny | 30° /14° | 0.1 mm | 8 | |
| Sept. 10 | Sunny | 31° /14° | 0.3 mm | 7 | |
| Sept. 11 |  Partly cloudy | 31° /15° | 0.7 mm | 6 | |
| Sept. 12 |  Overcast | 26° /12° | 0.6 mm | 6 | |
| Sept. 13 |  Cloudy | 26° /13° | 0 mm | 6 | |
| Sept. 14 | Sunny | 26° /11° | 0 mm | 7 | |
| Sept. 15 | Sunny | 26° /12° | 0.2 mm | 6 | |
| Sept. 16 | Sunny | 27° /13° | 0.7 mm | 6 | |
| Sept. 17 | Sunny | 25° /12° | 0.3 mm | 5 | |
| Sept. 18 |  Patchy rain possible | 25° /11° | 1.3 mm | 5 | |
| Sept. 19 |  Thundery outbreaks possible | 25° /10° | 0.9 mm | 6 | |
| Sept. 20 | Patchy rain possible | 25° /11° | 0.1 mm | 7 | |
| Sept. 21 | Overcast | 24° /11° | 0.3 mm | 5 | |
| Sept. 22 |  Patchy light rain with thunder | 22° /11° | 2.5 mm | 4 | |
| Sept. 23 | Sunny | 22° /8° | 0 mm | 6 | |
| Sept. 24 | Sunny | 26° /8° | 0 mm | 7 | |
| Sept. 25 | Sunny | 30° /10° | 0 mm | 7 | |
| Sept. 26 | Sunny | 29° /14° | 0 mm | 7 | |
| Sept. 27 | Sunny | 28° /12° | 0 mm | 6 | |
| Sept. 28 | Partly cloudy | 25° /12° | 5.8 mm | 6 | |
| Sept. 29 | Sunny | 21° /14° | 0 mm | 5.9 | |
| Sept. 30 | Sunny | 22° /12° | 0 mm | 6.3 | |
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Important Notice
Our weather forecast for Salt Lake 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 Salt Lake County forecast closer to your planned date for the most up-to-date weather information.
Change Month
Salt Lake County in September - FAQ
What are the expected maximum and minimum temperatures in Salt Lake County during September?
Enjoy moderate daytime temperatures of up to 27° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Salt Lake County during September?
Expect minimal rainfall in Salt Lake County during September, with a total of 15.5 mm over approximately 4 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Salt Lake County during September?
The average wind speed in Salt Lake County during September is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Salt Lake County
Explore the daily rainfall trends and prepare for Salt Lake Countys September weather 💧
Typically, Salt Lake County has 4 rainy days in September with a total of 15.5 mm of rainfall.
UV exposure in Salt Lake County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Salt Lake County?Get accurate weather forecasts for Salt Lake County, located at latitude 40.761 and longitude -111.891. Stay updated with localized weather information tailored for Salt Lake County.
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