Box Elder County (Brigham City)
September
Weather in Box Elder County, Utah for September 2026
Your guide to Box Elder County weather in September - trends and predictions
Until now, September 2026 in Box Elder County is slightly cooler than the historical average by 1.2 °F.
The forecast for the upcoming days in Box Elder County predicts a temperature of 24.1 °F, which is slightly above the historical average.
In general, the average temperature in Box Elder County at the beginning of September is 27.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 23.6 °F by the end of September.
With an average of 2 rainy days, Box Elder County experiences minimal rainfall in September.
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Temperatures
Rain 🌧️
More
28
Dry days
2
Rainy days
0
Snow days
25°/12°
Temperatures
16 km/h
Avg max wind
42 %
Avg humidity
Box Elder County Weather September
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Temperatures trend during September in Box Elder County
See the weather trend as well as the moving average line
September weather in Box Elder County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 28° /13° | 0 mm | 8 | |
| Sept. 2 |  Partly cloudy | 29° /15° | 0 mm | 8 | |
| Sept. 3 | Partly cloudy | 28° /13° | 0 mm | 9 | |
| Sept. 4 |  Cloudy | 29° /15° | 0 mm | 9 | |
| Sept. 5 | Sunny | 28° /15° | 0 mm | 9 | |
| Sept. 6 |  Thundery outbreaks possible | 27° /13° | 2.2 mm | 9 | |
| Sept. 7 | Cloudy | 24° /12° | 0.7 mm | 9 | |
| Sept. 8 | Partly cloudy | 26° /13° | 0 mm | 8 | |
| Sept. 9 |  Overcast | 25° /13° | 0 mm | 8 | |
| Sept. 10 | Cloudy | 26° /12° | 0 mm | 8 | |
| Sept. 11 | Partly cloudy | 26° /14° | 0 mm | 8 | |
| Sept. 12 | Sunny | 26° /11° | 0 mm | 7 | |
| Sept. 13 | Thundery outbreaks possible | 25° /12° | 0 mm | 8 | |
| Sept. 14 | Partly cloudy | 22° /9° | 0 mm | 7 | |
| Sept. 15 | Cloudy | 22° /8° | 0 mm | 6 | |
| Sept. 16 | Sunny | 25° /10° | 0.4 mm | 5 | |
| Sept. 17 | Sunny | 23° /11° | 2 mm | 5 | |
| Sept. 18 | Sunny | 23° /9° | 4.2 mm | 5 | |
| Sept. 19 | Overcast | 21° /9° | 2.5 mm | 5 | |
| Sept. 20 | Partly cloudy | 22° /10° | 0 mm | 7 | |
| Sept. 21 | Thundery outbreaks possible | 23° /10° | 2 mm | 6 | |
| Sept. 22 |  Patchy rain possible | 20° /11° | 4.1 mm | 4 | |
| Sept. 23 | Sunny | 23° /7° | 0 mm | 6 | |
| Sept. 24 | Sunny | 24° /9° | 0 mm | 6 | |
| Sept. 25 | Sunny | 26° /11° | 0 mm | 6 | |
| Sept. 26 | Sunny | 24° /11° | 0 mm | 6 | |
| Sept. 27 | Sunny | 25° /11° | 0 mm | 4 | |
| Sept. 28 | Partly cloudy | 21° /11° | 4.6 mm | 4 | |
| Sept. 29 | Sunny | 22° /10° | 0.2 mm | 5.8 | |
| Sept. 30 | Sunny | 23° /10° | 0 mm | 6.1 | |
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Important Notice
Our weather forecast for Box Elder 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 Box Elder County forecast closer to your planned date for the most up-to-date weather information.
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Box Elder County in September - FAQ
What are the expected maximum and minimum temperatures in Box Elder County during September?
Enjoy moderate daytime temperatures of up to 25° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Box Elder County during September?
Rainfall in Box Elder County during September is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 2 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 Box Elder County during September?
The average wind speed in Box Elder County during September is 16 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Box Elder County
Explore the daily rainfall trends and prepare for Box Elder Countys September weather 💧
Typically, Box Elder County has 2 rainy days in September with a total of 7.2 mm of rainfall.
UV exposure in Box Elder County during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Where is Box Elder County?Get accurate weather forecasts for Box Elder County, located at latitude 41.51 and longitude -112.016. Stay updated with localized weather information tailored for Box Elder County.
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