This is an archived article that was published on sltrib.com in 2014, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.

Utah's late-summer heat wave will be begin to break when the state passes the midweek mark as cooler temperatures return, along with thunderstorms and isolated rain showers.

But first, northern Utah — and Salt Lake City, specifically — were forecast to flirt with record daytime highs on Tuesday. The state's capital was to hover around 92 degrees, according to the National Weather Service, just 4 degrees off the 1990 record for the date.

Tuesday's clear, sunny skies were to give way on Wednesday to cloudier horizons and the mercury was to retreat into the mid- to -upper 80s, with evening storms predicted. By Thursday, thunderstorms and showers were to increase as highs dropped into the upper- 70s to low-80s.

Southern Utah was forecast to follow a similar pattern, Tuesday's heat bringing highs in the upper-90s under clear, sunny skies before thunderstorms move into the region on Wednesday, dropping temperatures several degrees. By Thursday, daytime highs will dip further into the mid- to upper-80s with the prospects for precipitation increasing to 70 percent.

The Utah Division of Air Quality forecast of "green," or healthy conditions for the entire state into through the midweek.

The Intermountain Allergy & Asthma website rated sagebrush as "very high," ragweed "high" and mold and chenopods at "moderate" levels on its pollen index Tuesday, all other allergens were "low."

To find more detailed forecast information, visit the Tribune's weather page at http://www.sltrib.com/weather.

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