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United States weather

Weather in Utah County, Utah for September 2026

Your guide to Utah County weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Utah County at the beginning of September is 31 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 26 °C by the end of September.

    • Rain 🌧️

  • Precipitation in Utah County during September is a rare event, with an average of fewer than 2 rainy days.

    • More

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Average dry days
29
Dry days
Average rainy days
1
Rainy days
Average snowy days
0
Snow days
Average temperatures
27°/9°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
44 %
Avg humidity

Utah County Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Sunny
33°
2
Sunny
34°
3
Sunny
32°
4
Overcast
32°
5
Partly cloudy
30°
6
Cloudy
28°
7
Sunny
28°
8
Sunny
28°
9
Cloudy
27°
10
Sunny
30°
11
Partly cloudy
27°
12
Overcast
25°
13
Sunny
23°
14
Sunny
28°
15
Partly cloudy
25°
16
Sunny
26°
17
Sunny
23°
18
Sunny
25°
19
Overcast
27°
20
Partly cloudy
25°
21
Overcast
25°
22
Patchy rain possible
20°
23
Sunny
23°
24
Sunny
26°
25
Sunny
29°
26
Thundery outbreaks possible
27°
27
Sunny
28°
28
Sunny
24°
29
Sunny
25°
30
Thundery outbreaks possible
23°

Temperatures trend during September in Utah County

See the weather trend as well as the moving average line

September weather in Utah County day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
Sept. 1 Sunny
Sunny
 33° /10° 0 mm 9
Sept. 2 Sunny
Sunny
 34° /10° 0 mm 9
Sept. 3 Sunny
Sunny
 32° /11° 0 mm 9
Sept. 4 Overcast
Overcast
 32° /11° 0 mm 9
Sept. 5 Partly cloudy
Partly cloudy
 30° /14° 0 mm 9
Sept. 6 Cloudy
Cloudy
 28° /12° 0 mm 9
Sept. 7 Sunny
Sunny
 28° /15° 0 mm 8
Sept. 8 Sunny
Sunny
 28° /10° 0 mm 8
Sept. 9 Cloudy
Cloudy
 27° /14° 0 mm 9
Sept. 10 Sunny
Sunny
 30° /12° 0 mm 8
Sept. 11 Partly cloudy
Partly cloudy
 27° /12° 0 mm 8
Sept. 12 Overcast
Overcast
 25° /7° 0 mm 8
Sept. 13 Sunny
Sunny
 23° /5° 0 mm 8
Sept. 14 Sunny
Sunny
 28° /7° 0 mm 8
Sept. 15 Partly cloudy
Partly cloudy
 25° /9° 0 mm 8
Sept. 16 Sunny
Sunny
 26° /8° 0 mm 7
Sept. 17 Sunny
Sunny
 23° /4° 0 mm 7
Sept. 18 Sunny
Sunny
 25° /4° 0 mm 7
Sept. 19 Overcast
Overcast
 27° /8° 0 mm 7
Sept. 20 Partly cloudy
Partly cloudy
 25° /10° 0 mm 7
Sept. 21 Overcast
Overcast
 25° /15° 0 mm 6
Sept. 22 Patchy rain possible
Patchy rain possible
 20° /9° 0.4 mm 6
Sept. 23 Sunny
Sunny
 23° /2° 0 mm 6
Sept. 24 Sunny
Sunny
 26° /4° 0 mm 6
Sept. 25 Sunny
Sunny
 29° /6° 0 mm 6
Sept. 26 Thundery outbreaks possible
Thundery outbreaks possible
 27° /11° 0 mm 6
Sept. 27 Sunny
Sunny
 28° /8° 0 mm 6
Sept. 28 Sunny
Sunny
 24° /9° 0 mm 6
Sept. 29 Sunny
Sunny
 25° /12° 0 mm 6
Sept. 30 Thundery outbreaks possible
Thundery outbreaks possible
 23° /13° 0 mm 6
Next
Important Notice
Our weather forecast for Utah 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 Utah County forecast closer to your planned date for the most up-to-date weather information.
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Utah County in September - FAQ

What are the expected maximum and minimum temperatures in Utah County during September?
Enjoy moderate daytime temperatures of up to 27° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Utah County during September?
Rainfall in Utah County during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 1 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.

What are the typical wind conditions in Utah County during September?
The average wind speed in Utah County during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

UV exposure in Utah County during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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American Fork
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Location coordinates Where is Utah County?

Get accurate weather forecasts for Utah County, located at latitude 40.377 and longitude -111.796. Stay updated with localized weather information tailored for Utah County.

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