KGW is also calling a second Weather Impact Alert for a potential rain/snow mix early Saturday morning, but don't expect ...

Portland, OR experienced its coldest temperatures of winter with a low of 26 degrees. The extended outlook shows a mainly dry and below-normal temperature pattern continuing through the end of the ...

Freeze warnings are issued when "significant, widespread freezing temperatures are expected," according to the NWS. The first ...

PORTLAND, Ore. (KOIN) — Early morning frost and fog will keep the greater Portland, Vancouver area feeling like the middle of January on Tuesday. A chill to the morning air will be met with ...

PORTLAND, Ore. (KOIN) — Another round of morning fog and patchy frost is on tap this Wednesday morning around the Portland metro area. Temperatures will remain near-freezing early Wednesday ...

Those out and about early on Wednesday will be greeted by widespread frost due to below average overnight low temps across western Oregon. The National Weather Service warns of slick areas ...

AUSTIN (KXAN) — The formation of frost is a relatively simple process, relying on a few atmospheric conditions. First, the surface temperature of the ground must be at or below freezing.