Tabular State Forecast
Issued by NWS
Issued by NWS
989
FPUS63 KILX 171605
SFTIL
ILZ001>013-015>021-023>108-172200-
Tabular State Forecast for Illinois
National Weather Service Lincoln IL
1105 AM CDT Thu Sep 17 2026
ROWS INCLUDE...
Daily predominant daytime weather 6AM-6PM
Forecast temperatures...early morning low/daytime high
Probability of precipitation nighttime 6PM-6AM/daytime 6AM-6PM
- indicates temperatures below zero
MM indicates missing data
FCST FCST FCST FCST FCST FCST FCST
Today Fri Sat Sun Mon Tue Wed
Sep 17 Sep 18 Sep 19 Sep 20 Sep 21 Sep 22 Sep 23
...Northwest IL...
Moline/Rock Island
Shwrs Shwrs Tstrms Tstrms Shwrs Ptcldy Ptcldy
/80 65/77 68/83 66/71 59/65 55/65 52/69
/50 10/60 50/70 80/80 60/70 50/30 10/00
Sterling/Rock Falls
Tstrms Mocldy Tstrms Tstrms Shwrs Ptcldy Ptcldy
/80 62/75 64/81 63/70 57/66 53/65 51/69
/80 10/30 70/80 80/80 60/60 50/30 10/00
...North central IL...
DeKalb
Tstrms Mocldy Tstrms Shwrs Shwrs Ptcldy Ptcldy
/76 61/72 62/77 63/69 57/64 53/63 51/68
/100 20/20 60/90 90/80 50/60 40/30 10/10
Rockford
Tstrms Mocldy Tstrms Shwrs Shwrs Ptcldy Ptcldy
/74 60/72 62/77 62/68 56/64 52/64 50/68
/100 20/20 90/100 80/80 60/60 40/20 10/10
...Northeast IL...
Aurora
Tstrms Ptcldy Tstrms Shwrs Shwrs Ptcldy Ptcldy
/78 64/73 63/78 65/70 58/64 54/64 53/68
/100 20/10 60/90 90/80 60/60 50/20 20/10
Chicago Downtown
Tstrms Ptcldy Tstrms Shwrs Shwrs Ptcldy Ptcldy
/74 66/70 62/74 65/69 59/65 57/64 57/67
/100 20/10 50/100 90/90 60/60 50/20 20/10
Chicago O`Hare
Tstrms Ptcldy Tstrms Shwrs Shwrs Ptcldy Ptcldy
/75 65/71 63/76 64/68 59/64 56/63 56/67
/100 20/10 70/100 90/80 60/60 50/20 10/10
Joliet
Tstrms Ptcldy Tstrms Shwrs Shwrs Ptcldy Ptcldy
/80 66/75 64/80 67/72 59/66 56/66 55/70
/100 20/10 60/90 90/80 60/60 50/30 30/00
Kankakee
Tstrms Ptcldy Tstrms Shwrs Shwrs Ptcldy Ptcldy
/83 65/77 63/83 66/76 59/68 55/67 54/70
/80 20/10 40/70 90/70 60/60 50/20 20/10
Waukegan
Tstrms Ptcldy Tstrms Shwrs Shwrs Ptcldy Ptcldy
/71 62/69 61/72 61/68 55/64 54/64 54/66
/90 20/10 90/100 80/70 50/60 50/20 10/10
...West central IL...
Jerseyville
Sunny Sunny Ptcldy Ptcldy Tstrms Ptcldy Ptcldy
/96 71/93 72/95 71/90 66/80 59/74 55/76
/30 30/20 20/00 10/30 50/60 30/20 00/00
Macomb
Ptcldy Ptcldy Ptcldy Tstrms Shwrs Ptcldy Ptcldy
/86 68/83 69/87 67/78 61/68 56/66 52/70
/30 20/40 30/30 70/70 60/60 30/30 00/00
Quincy
Sunny Ptcldy Ptcldy Tstrms Shwrs Mocldy Ptcldy
/90 72/89 73/91 71/81 65/71 59/68 56/72
/10 10/30 30/10 50/60 70/70 30/20 00/10
...Central IL...
Decatur
Sunny Ptcldy Ptcldy Ptcldy Tstrms Ptcldy Ptcldy
/95 69/88 69/92 70/86 63/76 58/71 55/74
/10 20/30 20/20 30/30 50/60 30/20 10/10
LaSalle/Peru
Tstrms Ptcldy Tstrms Shwrs Shwrs Ptcldy Ptcldy
/83 65/77 66/83 67/73 59/67 55/66 53/70
/60 20/30 50/70 90/80 60/60 60/30 20/00
Peoria
Ptcldy Ptcldy Ptcldy Tstrms Tstrms Ptcldy Ptcldy
/87 68/82 69/88 69/78 62/70 58/68 55/71
/30 20/40 40/40 70/60 60/60 50/30 10/00
Pontiac
Tstrms Ptcldy Tstrms Tstrms Tstrms Ptcldy Ptcldy
/85 66/79 66/86 67/77 59/69 55/68 53/71
/50 30/20 30/60 80/70 60/60 50/20 20/00
Springfield
Sunny Ptcldy Ptcldy Tstrms Shwrs Ptcldy Ptcldy
/96 70/90 71/94 71/87 65/77 59/72 56/75
/10 20/30 20/10 30/50 60/60 40/20 00/00
...East central IL...
Champaign/Urbana
Ptcldy Ptcldy Ptcldy Mocldy Tstrms Ptcldy Ptcldy
/93 68/84 67/89 69/84 63/74 57/70 55/72
/20 40/20 30/30 40/40 50/60 40/20 10/10
Charleston/Mattoon
Sunny Ptcldy Ptcldy Ptcldy Tstrms Ptcldy Ptcldy
/96 70/89 69/92 71/89 65/80 59/73 56/75
/20 20/20 10/10 20/20 40/50 40/20 10/10
...Southwest IL...
Belleville
Sunny Sunny Ptcldy Ptcldy Tstrms Ptcldy Ptcldy
/98 73/96 74/97 73/94 70/85 63/77 59/79
/30 20/20 10/00 10/20 30/50 50/20 00/00
Chester
Sunny Sunny Sunny Ptcldy Ptcldy Ptcldy Ptcldy
/98 72/97 71/97 72/95 69/88 63/79 58/79
/10 10/10 20/00 00/10 20/40 40/10 00/00
...South central IL...
Carbondale
Sunny Sunny Sunny Ptcldy Ptcldy Ptcldy Ptcldy
/99 74/98 73/98 73/96 71/90 65/80 60/80
/00 00/20 20/00 00/10 10/30 30/10 10/10
Centralia
Sunny Sunny Sunny Ptcldy Ptcldy Ptcldy Ptcldy
/98 73/95 72/96 72/94 69/87 62/78 57/79
/20 20/20 20/00 10/20 10/30 30/20 10/10
Mount Vernon
Sunny Sunny Sunny Ptcldy Ptcldy Ptcldy Ptcldy
/99 72/97 71/98 71/96 68/89 62/80 57/80
/20 10/20 20/00 10/10 10/30 30/20 10/00
...Southeast IL...
Lawrenceville
Sunny Sunny Sunny Ptcldy Ptcldy Ptcldy Ptcldy
/99 72/94 70/96 72/95 69/87 63/78 59/78
/20 10/20 20/10 10/20 20/30 40/30 10/10
$$