Valley fog expected tonight in Treasure Valley as melting snow adds moisture. Temperature inversion strengthening with patchy ...

Treasure Valley inversion remains locked in place through Thursday with valley temps near 31 degrees. Brief relief possible ...

While inversions are common in the Treasure Valley, this one has lasted an unusually long time. What’s going on? When will it end?

As the cool air sinks, the warm air rises over the top and traps the cold air below. If you travel from downtown Boise to the ...

Oregon’s temperature inversion continues as stagnant air, fog, and chilly temperatures remain across much of the Pacific ...

There can be long stretches throughout the year, especially during the winter, when it doesn't seem like the clouds want to break up. The lack of sunshine can come from what meteorologists call a ...

The bottom line? High pressure ridge continues to build with declining air quality in northern valleys but rebounding temperatures in central and southern Utah.

Drive up to Bogus Basin right now and look out over the Treasure Valley; you’ll see a haze hanging over Boise and its surrounding cities. But for those below the haze … the view is not so interesting.

Have you ever walked outside in Pueblo on a cold morning and seen the haze in the sky? Or watched our morning forecasts and seen Woodland Park is warmer than Pueblo? It’s very common at this time of ...

The weekend is ending with slightly warmer temperatures as the inversion continues through Monday. FOX 13 Meteorologist Nate ...