Chicago Snow: A Guide to Where and When the Snow Falls

CHICAGO, IL — You may want to start your weekend early if possible so as to avoid the winter weather expected to hit the Chicago area during this evening’s commute. Snow should develop across the area this afternoon and become moderate to heavy at times across far northeast Illinois later this afternoon and into the early evening hours.

By 3 p.m., there is an 80 to 100 percent chance of snow falling for most of the Chicago area, according to the National Weather Service.

Snowfall rates up to one inch per hour are expected at the height of the storm this afternoon and evening with towns closer to the Wisconsin-Illinois border expected to be the hardest hit.

“Snow-covered roads and reduced visibilities will result in treacherous conditions and longer commute times,” according to weather officials. A winter weather advisory has been issued for all of northern Illinois, which took effect starting at noon today and will continue through 6 a.m. on Sunday.

Snowfall amounts between 3 to 5 inches are possible this afternoon and evening. Snow will continue on Saturday with the Chicago area expected to see total snowfall amounts of 3 to 8 inches during the course of the storm.

• Chicago Weather: Winter Storm to Hit Evening Commute; 8 Inches of Snow Possible

Here is an hour-by-hour look at how much snow is expected to fall -- and when it will start -- for different portions of the Chicago area on Friday.

Chicago, IL

Timing

• 1 p.m.: 30 to 50 percent chance of snow
• 2 p.m.: 60 to 70 percent chance of snow
• 3 p.m. Friday through 2 a.m. Saturday: 80 to 100 percent chance of snow

Forecast Snowfall Amounts

• Between 1 to 6 p.m.: 1 inch of snowfall
• Between 6 p.m. and 12 a.m.: 1.7 inches of snowfall

Grayslake

Timing

• 1 p.m.: 30 to 50 percent chance of snow
• 2 p.m.: 60 to 70 percent chance of snow
• 3 p.m. Friday through 5 a.m. Saturday: 80 to 100 percent chance of snow

Snowfall Amounts

• Between 1 to 6 p.m.: 1.2 inches of snow
• Between 6 p.m. and 12 a.m.: 2.4 inches of snow

Antioch

Timing

• 1 p.m.: 30 to 50 percent chance of snow
• 2 p.m.: 60 to 70 percent chance of snow
• 3 p.m. Friday through 5 a.m. Saturday: 80 to 100 percent chance of snow

Snowfall Amounts

• Between 1 and 6 p.m.: 1.2 inches
• Between 6 p.m. and 12 a.m.: 2.6 inches of snow

Schaumburg

Timing

• 1 p.m.: 30 to 50 percent chance of snow
• 2 p.m.: 60 to 70 percent chance of snow
• 3 p.m. Friday through 2 a.m. Saturday: 80 to 100 percent chance of snow

Snowfall Amounts

• Between 1 and 6 p.m.: 1.1 inches
• Between 6 p.m. and 12 a.m.: 1.8 inches

Crystal Lake

Timing

• 1 p.m.: 30 to 50 percent chance of snow
• 2 p.m.: 60 to 70 percent chance of snow
• 3 p.m. Friday through 2 a.m. Saturday: 80 to 100 percent chance of snow

Snowfall Amounts

• Between 1 and 6 p.m.: 1.1 inches
• Between 6 p.m. and 12 a.m.: 2 inches

Naperville

Timing

• 1 p.m.: 30 to 50 percent chance of snow
• 2 p.m.: 60 to 70 percent chance of snow
• 3 p.m. Friday through 2 a.m. Saturday: 80 to 100 percent chance of snow

Snowfall Amounts

• Between 1 and 6 p.m.: 1 inch
• Between 6 p.m. and 12 a.m.: 1.4 inches

Orland Park

Timing

• 1 p.m.: 30 to 50 percent chance of snow
• 2 p.m.: 60 to 70 percent chance of snow
• 3 p.m. Friday through 2 a.m. Saturday: 80 to 100 percent chance of snow

Snowfall Amounts

• Between 1 and 6 p.m.: 1 inch
• Between 6 p.m. and 12 a.m.: 1.3 inches

Joliet

Timing

• 1 p.m.: 30 to 50 percent chance of snow
• 2 p.m.: 60 to 70 percent chance of snow
• 3 p.m. Friday through 11 p.m.: 80 to 100 percent chance of snow

Snowfall Amounts

• Between 1 p.m. on Friday and 12 a.m. on Saturday: 1 inch of snow