Northern Utah is bracing for incoming thunderstorms and rising temperatures, according to KMYU weather reports for July 20, 2026. While much of the state faces heat, forecasted afternoon and evening storms are expected to move through northern regions, potentially offering relief from recent high temperatures.
Thunderstorm Forecasts and Heat Trends
The weather forecast for July 20 indicates a temperature of 79 degrees, with a projected high of 96 degrees for Tuesday. KMYU reports that thunderstorms are expected in northern Utah, with additional chances for storms appearing in central Utah during the afternoon and evening hours on Sunday.
This pattern follows a period of significant heat across the state. In previous heat waves documented by KMYU, temperatures reached triple digits as far north as Cache Valley, while St. George saw highs as extreme as 1t4 degrees.
Air Quality and Temperature Records
Air quality remains a concern during these warm periods. KMYU reports that deteriorating air quality has been linked to the combination of heat, sun, and volatile organic compounds (VOCs) which activate 'bad ozone.'
Historical data from the station shows that Salt Lake City has previously experienced record-breaking heat, including a day where high pressure pushed temperatures to 106 degrees. Conversely, the city has also seen unseasonably mild July days, such as a Fourth of July where maximum temperatures only reached 89 degrees.
Persistent Fire Weather Risks
Fire danger continues to be a critical issue across the state, particularly in eastern and southeastern Utah. Approximately three weeks ago, KMYU reported that cooler air was arriving in northern Utah while critical fire weather persisted in the southeast. During that period, winds were expected to diminish in the north while remaining windy in the southern half of the state.
Earlier reports from one month ago highlighted extreme conditions where heat and wind raised fire danger across the entire state throughout a weekend. This included forecasts for dry thunderstorms and high winds that could exacerbate existing risks.
Wildfire Escalation and Seasonal Trends
The scale of wildfire activity in Utah has recently been significant. KMYU reported three weeks ago that the largest wildfire in the United States was burning through Utah canyons and mountainsides, blackening parched landscapes and facing challenges from high winds.
This surge in activity aligns with warnings from the Utah Division of Forestry, Fire and State Lands. Two months ago, officials stated they expected an uptick in statewide wildfires throughout June and July following a dry winter season.
Wind Advisories and Storm Systems
Wind conditions have also played a major role in recent weather volatility. Approximately one month ago, KMYU reported that strong winds and high fire danger were returning to the state as a new weather system approached. During that period, south winds and low humidity created critical conditions.
Additionally, wind advisories were previously in place for large portions of the state, including Tooele and Castle counties, during periods of incoming storm systems.
Ongoing Weather Outlook
As the state moves through July, residents should remain alert to both heat-related health risks and the potential for rapidly changing fire conditions. The interplay of high temperatures, southwesterly winds, and intermittent thunderstorms continues to define the current summer weather pattern in Utah.
