Our week of frigid temperatures and frozen rain has begun, St. Louis.

Arctic winds are pushing south, bringing sleet and snow into the St. Louis area Thursday just as morning rush hour started.

Here's what the weather experts are saying.

1. Storm Alert STL

Around noon, wintry precipitation will start falling in the I-44 corridor and south, making the evening rush hour particularly hellish. Another round of snow will fall early tomorrow morning.

2. U.S. National Weather Service

Temperatures will be well below normal this week. St. Louis will be lucky to see anything above freezing.

3. Fox2Now

Our lowest temperature tonight should be around 20 degrees, far from the record of 8 degrees set in 1886.

4. KSDK-TV (Channel 5)

Most of St. Louis city is looking at two inches of wintry mix, but the I-44 corridor and south could see double that, especially this afternoon.

5. KMOV-TV (Channel 4)

Several schools are calling off classes or closing early before the storm really starts to rev up.

Follow Lindsay Toler on Twitter at @StLouisLindsay. E-mail the author at Lindsay.Toler@RiverfrontTimes.com.