Willard Bay State Park Weather Forecast
- 56
- 81
Increasing Clouds
- 58
- 81
Mostly Cloudy
- 57
- 80
Slight Chance Thunderstorms
- 56
- 80
Slight Chance Thunderstorms
- 55
- 80
Sunny
- 58
- 85
Mostly Sunny
Today 18 Sep Eastern Box Elder County
Sunny. Highs around 80.
Tonight 18 Sep Eastern Box Elder County
Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid 50s.
Willard Bay State Park Temperature Statistics
September Temperature
BRIGHAM CITY AIRPORT (6.2 miles)
Lowest 14 September, 2025
48.2 °FAverage September
71.7 °FHighest 2 September, 2025
93.2 °F
Climate (2020–Present)
BRIGHAM CITY AIRPORT (6.2 miles)
Average Low 2020–2025
40.6 °FAverage 2020–2025
52.2 °FAverage High 2020–2025
63.6 °F