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United States weather

Weather in Salt Lake County, Utah for September 2025

Your guide to Salt Lake County weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Salt Lake County has been nearly identical to the historical average, with a temperature of 29.8 °F (showing only a slight deviation of 0.5 °F).

  • The forecast for the next days in Salt Lake County predicts a temperature of 24.1 °F, which is cooler than the historical average.

  • In general, the average temperature in Salt Lake County at the beginning of September is 30.1 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 22.7 °F by the end of September.

    • Rain 🌧️

  • Salt Lake County experiences moderate rainfall in September, with an average of 6 rainy days and a total precipitation of 21.9 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
24
Dry days
Average rainy days
6
Rainy days
Average snowy days
0
Snow days
Average temperatures
27°/12°
Temperatures
Average wind speed
19 km/h
Avg max wind
Average humidity
36 %
Avg humidity

Salt Lake County Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
33°
2
Cloudy
32°
3
Partly cloudy
30°
4
Patchy light rain with thunder
27°
5
Sunny
28°
6
Sunny
30°
7
Sunny
31°
8
Sunny
31°
9
Sunny
31°
10
Sunny
31°
11
Partly cloudy
30°
12
Overcast
24°
13
Cloudy
24°
14
Sunny
28°
15
Sunny
25°
16
Sunny
23°
17
Sunny
24°
18
Sunny
27°
19
Partly cloudy
29°
20
Patchy rain possible
28°
21
Sunny
28°
22
Sunny
28°
23
Moderate rain
20°
24
Patchy rain possible
25°
25
Sunny
26°
26
Sunny
27°
27
Patchy rain possible
15°
28
Patchy rain possible
12°
29
Sunny
30°
30
Overcast
24°

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

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
Sept. 1 Sunny
Sunny
 33° /15° 5.4 mm 8
Sept. 2 Cloudy
Cloudy
 32° /15° 1.7 mm 7
Sept. 3 Partly cloudy
Partly cloudy
 30° /16° 2.4 mm 7
Sept. 4 Patchy light rain with thunder
Patchy light rain with thunder
 27° /14° 0.7 mm 6
Sept. 5 Sunny
Sunny
 28° /12° 0 mm 7
Sept. 6 Sunny
Sunny
 30° /14° 0 mm 8
Sept. 7 Sunny
Sunny
 31° /15° 0 mm 8
Sept. 8 Sunny
Sunny
 31° /15° 0 mm 8
Sept. 9 Sunny
Sunny
 31° /16° 0.1 mm 7
Sept. 10 Sunny
Sunny
 31° /15° 0.4 mm 7
Sept. 11 Partly cloudy
Partly cloudy
 30° /14° 0.8 mm 7
Sept. 12 Overcast
Overcast
 24° /11° 0.8 mm 6
Sept. 13 Cloudy
Cloudy
 24° /10° 0 mm 5
Sept. 14 Sunny
Sunny
 28° /11° 0 mm 7
Sept. 15 Sunny
Sunny
 25° /11° 0 mm 1.6
Sept. 16 Sunny
Sunny
 23° /5° 0 mm 1.6
Sept. 17 Sunny
Sunny
 24° /5° 0 mm 1.7
Sept. 18 Sunny
Sunny
 27° /11° 0 mm 1.7
Sept. 19 Partly cloudy
Partly cloudy
 29° /13° 0 mm 0
Sept. 20 Patchy rain possible
Patchy rain possible
 28° /15° 0.2 mm 5
Sept. 21 Sunny
Sunny
 28° /17° 0 mm 6
Sept. 22 Sunny
Sunny
 28° /14° 0 mm 6
Sept. 23 Moderate rain
Moderate rain
 20° /14° 12.5 mm 4
Sept. 24 Patchy rain possible
Patchy rain possible
 25° /13° 2.2 mm 4
Sept. 25 Sunny
Sunny
 26° /14° 0 mm 5
Sept. 26 Sunny
Sunny
 27° /14° 0 mm 6
Sept. 27 Patchy rain possible
Patchy rain possible
 15° /9° 2.4 mm 3
Sept. 28 Patchy rain possible
Patchy rain possible
 12° /6° 3.4 mm 2
Sept. 29 Sunny
Sunny
 30° /12° 0 mm 8
Sept. 30 Overcast
Overcast
 24° /12° 0 mm 6
Next
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.
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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?
In September, Salt Lake County can expect light to moderate rainfall, totaling 21.9 mm across approximately 6 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Salt Lake County during September?
The average wind speed in Salt Lake County during September is 19 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 💧

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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Salt Lake CityWest Jordan
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Location coordinates 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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