Utah experienced overcast skies and moderate air quality across several counties on Monday, Nov. 9, 2026, as temperatures reached a high of 58 degrees Fahrenheit. While portions of the state maintained good air quality, several northern and central counties faced moderate pollution levels according to recent environmental and weather data.
Weather Conditions and Forecast
Weather conditions for Monday, Nov. 9, 2026, included overcast skies with a high temperature of 58 degrees Fahrenheit and a low of 38 degrees Fahrenheit. The forecast for the remainder of the week indicates a trend toward partly cloudy skies by mid-week, with temperatures remaining relatively consistent through the weekend.
Regional Air Quality Variations
Air quality levels varied across the state on Monday, Nov. 9, 2026. According to the Utah Department of Environmental Quality, Salt Lake, Davis, and Utah counties all reported moderate air quality. In these areas, the action forecast remains unrestricted.
In Weber and Box Elder counties, the air quality was reported as moderate for Tuesday, Nov. 10, 2026, following a good rating on Monday, Nov. 9, 2026. Similarly, Cache County was reported to have good air quality on Monday, Nov. 9, 2026, but was forecasted to reach moderate levels by Tuesday, Nov. 10, 2026.
Areas Maintaining Good Air Quality
Several counties reported good air quality for Monday, Nov. 9, 2026, including Tooele, Wasatch, Washington, Iron, Carbon, Grand, Duchesne, and Uintah. In Tooele and Wasatch counties, air quality was forecasted to remain good through the immediate period.
Data from the Copernicus Atmosphere Monitoring Service, used by Open-Meteo, indicated that air quality for Utah on Monday, Nov. 9, 2026, was rated as good with a maximum value of 45.
Seasonal Pollution Patterns
The Utah Department of Environmental Quality noted that during the winter months, particulate matter, specifically PM 2.5, pollution levels tend to build up until a storm or weather system moves the air out of the valley. This seasonal behavior differs from summer months, when ozone pollution levels are generally low during the morning, evening, and night.
Public Health Guidance
The Department of Environmental Quality's health forecast is designed to help individuals with various health conditions determine how the highest pollution level of the day may affect them. The agency encourages the public to use the health forecast to plan physical activities to help minimize potential health effects caused by pollution.
Weekly Outlook
Looking ahead to the remainder of the week, weather forecasts suggest a gradual shift in sky conditions. Following the overcast conditions of Monday, Nov. 9, 2026, and Tuesday, Nov. 10, 2026, skies are expected to become partly cloudy on Wednesday, Nov. 11, 2026, and Thursday, Nov. 12, 2026.
Temperature Forecast Trends
Temperature forecasts for the week ahead indicate a high of 57 degrees Fahrenheit on Tuesday, Nov. 10, 2026, and a high of 54 degrees Fahrenheit on Wednesday, Nov. 11, 2026. By Thursday, Nov. 12, 2026, the high is expected to reach 51 degrees Fahrenheit.
