Extreme Cold - Polk County Iowa

Polk County COVID-19 testing site closing temporarily due to

Iowa winter weather: Des Moines staring down a week of sub-zero

Iowans 'take temperature' of candidates as 'extremely cold' caucus

Another day of frigid wind chills and brutal cold across much of the

Arctic blast threatens to impact turnout at Iowa caucuses

Arctic cold temps linger through Monday, along with very cold wind

Snow totals in central Iowa from Thursday's winter storm

Will Frigid Temperatures Freeze Iowa Caucus Turnout?

Here's How Much Snow Polk County, Iowa Received in January

Update: Extreme cold warning lifted in the southeast

Why Your Furnace Can't Keep Up in Extreme Cold Weather

Canada experiences extreme cold weather - Xinhua

Brutal' Arctic blast expected to bring frigid temperatures to North America, US weather

Nearly 100 million in the U.S. face extreme cold this week : NPR