Tabular State Forecast
Issued by NWS
Issued by NWS
021
FPUS63 KILX 180205
SFTIL
ILZ001>013-015>021-023>108-181000-
Tabular State Forecast for Illinois
National Weather Service Lincoln IL
905 PM 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
Fri Sat Sun Mon Tue Wed Thu
Sep 18 Sep 19 Sep 20 Sep 21 Sep 22 Sep 23 Sep 24
...Northwest IL...
Moline/Rock Island
Shwrs Tstrms Tstrms Shwrs Ptcldy Ptcldy Ptcldy
65/77 68/83 66/71 59/65 55/64 52/69 55/71
10/50 50/70 80/80 60/70 50/30 10/00 10/10
Sterling/Rock Falls
Ptcldy Tstrms Tstrms Shwrs Ptcldy Ptcldy Ptcldy
62/75 64/81 63/70 57/65 53/65 50/69 53/71
20/30 70/80 80/80 60/60 50/30 10/00 00/10
...North central IL...
DeKalb
Mocldy Tstrms Shwrs Shwrs Ptcldy Ptcldy Ptcldy
61/72 62/74 63/69 57/63 53/63 51/67 53/70
20/20 60/90 90/80 50/60 50/30 20/10 00/10
Rockford
Mocldy Tstrms Shwrs Shwrs Ptcldy Ptcldy Ptcldy
60/72 62/74 62/68 56/63 52/63 50/67 52/69
20/20 90/100 80/80 50/60 50/30 10/10 00/10
...Northeast IL...
Aurora
Ptcldy Tstrms Shwrs Shwrs Ptcldy Ptcldy Ptcldy
64/73 63/74 65/70 58/64 54/64 53/68 54/70
20/10 60/90 90/80 60/60 50/30 20/10 00/10
Chicago Downtown
Ptcldy Tstrms Shwrs Shwrs Ptcldy Ptcldy Ptcldy
66/70 62/72 65/69 59/65 57/64 57/66 59/68
20/10 50/100 90/90 60/60 50/30 20/10 00/10
Chicago O`Hare
Ptcldy Tstrms Shwrs Shwrs Ptcldy Ptcldy Ptcldy
65/71 63/73 64/68 59/64 56/63 56/67 57/70
20/10 70/100 90/80 60/60 50/30 20/10 00/10
Joliet
Ptcldy Tstrms Shwrs Shwrs Ptcldy Ptcldy Ptcldy
66/75 64/77 67/72 59/66 56/66 55/70 56/71
20/10 60/90 90/80 60/60 50/30 30/10 00/10
Kankakee
Ptcldy Tstrms Shwrs Shwrs Ptcldy Ptcldy Ptcldy
65/77 63/80 66/76 59/67 55/67 54/71 55/72
30/10 40/70 90/70 60/60 50/30 30/10 00/10
Waukegan
Ptcldy Tstrms Shwrs Shwrs Ptcldy Ptcldy Ptcldy
62/69 61/69 61/67 55/64 53/63 53/66 55/68
20/20 90/100 80/70 50/60 50/30 20/10 00/10
...West central IL...
Jerseyville
Sunny Ptcldy Ptcldy Tstrms Ptcldy Ptcldy Ptcldy
71/93 72/95 71/90 66/80 59/74 55/76 57/79
30/10 10/00 10/30 50/60 30/20 20/00 10/10
Macomb
Ptcldy Ptcldy Tstrms Shwrs Ptcldy Ptcldy Ptcldy
68/83 69/87 67/78 61/67 56/64 51/69 54/71
20/40 30/20 70/70 60/60 40/30 00/00 10/10
Quincy
Ptcldy Ptcldy Tstrms Shwrs Mocldy Ptcldy Ptcldy
72/89 73/91 71/81 65/71 59/66 55/71 59/74
10/30 10/10 50/60 60/60 30/20 00/10 10/10
...Central IL...
Decatur
Ptcldy Ptcldy Ptcldy Tstrms Ptcldy Ptcldy Ptcldy
70/88 69/92 70/86 63/76 58/70 54/74 56/77
10/30 20/20 30/30 50/60 30/20 10/10 00/10
LaSalle/Peru
Ptcldy Tstrms Shwrs Shwrs Ptcldy Ptcldy Ptcldy
65/77 66/82 67/73 59/66 55/65 53/70 54/71
20/30 50/70 90/80 60/60 50/30 20/00 00/10
Peoria
Ptcldy Ptcldy Tstrms Tstrms Ptcldy Ptcldy Ptcldy
68/82 69/88 69/78 62/69 58/67 55/71 57/73
20/40 40/40 70/60 60/60 50/30 10/00 10/10
Pontiac
Mocldy Tstrms Tstrms Tstrms Ptcldy Ptcldy Ptcldy
66/79 66/84 67/77 59/68 55/67 53/71 54/73
30/20 30/60 80/70 60/60 50/30 20/00 00/10
Springfield
Ptcldy Ptcldy Tstrms Shwrs Ptcldy Ptcldy Ptcldy
71/90 71/94 71/87 65/76 59/71 55/75 57/78
10/30 20/20 30/50 60/60 40/20 00/00 00/10
...East central IL...
Champaign/Urbana
Ptcldy Ptcldy Mocldy Tstrms Ptcldy Ptcldy Ptcldy
69/84 67/89 69/84 63/74 57/70 54/72 55/76
20/20 30/30 40/40 50/60 40/30 10/10 00/10
Charleston/Mattoon
Ptcldy Ptcldy Ptcldy Tstrms Ptcldy Ptcldy Ptcldy
71/89 69/92 71/89 65/80 59/73 55/75 56/78
10/20 20/10 20/20 40/60 40/30 10/10 00/10
...Southwest IL...
Belleville
Sunny Sunny Ptcldy Tstrms Ptcldy Ptcldy Ptcldy
73/96 74/97 73/94 70/85 63/77 59/79 60/82
20/10 10/00 10/20 30/50 50/20 00/00 10/10
Chester
Sunny Sunny Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy
72/97 71/97 72/95 69/88 63/79 58/79 58/82
10/10 10/00 00/10 30/40 40/10 00/00 00/10
...South central IL...
Carbondale
Sunny Sunny Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy
74/98 73/98 73/96 71/90 65/80 60/80 61/81
00/20 20/00 00/10 10/30 30/10 10/10 00/00
Centralia
Sunny Sunny Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy
73/95 72/96 72/94 69/87 62/78 57/79 58/81
20/20 10/00 10/20 20/40 40/30 10/00 00/10
Mount Vernon
Sunny Sunny Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy
72/97 71/98 71/96 68/89 62/80 57/80 58/82
20/20 20/00 10/10 10/30 30/30 10/00 00/10
...Southeast IL...
Lawrenceville
Sunny Sunny Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy
73/94 70/96 72/95 68/87 63/78 59/78 59/80
20/20 20/10 10/20 20/30 40/40 10/10 00/10
$$