Tabular State Forecast
Issued by NWS
Issued by NWS
375
FPUS63 KILX 182105
SFTIL
ILZ001>013-015>021-023>108-191000-
Tabular State Forecast for Illinois
National Weather Service Lincoln IL
405 PM CDT Fri Sep 18 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
Sat Sun Mon Tue Wed Thu Fri
Sep 19 Sep 20 Sep 21 Sep 22 Sep 23 Sep 24 Sep 25
...Northwest IL...
Moline/Rock Island
Tstrms Shwrs Shwrs Shwrs Ptcldy Ptcldy Ptcldy
68/83 65/72 57/65 52/64 49/68 52/70 54/71
50/70 80/80 60/60 50/50 10/00 00/10 10/10
Sterling/Rock Falls
Tstrms Shwrs Shwrs Ptcldy Ptcldy Ptcldy Ptcldy
64/81 63/71 55/66 50/64 48/68 50/70 52/72
50/80 80/80 60/50 40/30 10/00 00/00 10/10
...North central IL...
DeKalb
Tstrms Tstrms Shwrs Mocldy Ptcldy Ptcldy Ptcldy
62/77 63/68 55/64 51/63 49/66 50/69 52/70
50/90 80/80 60/50 30/30 10/10 00/00 00/10
Rockford
Tstrms Tstrms Mocldy Mocldy Ptcldy Ptcldy Ptcldy
62/76 62/67 55/64 50/63 48/66 50/68 51/70
70/90 80/70 50/40 40/30 10/10 00/00 10/10
...Northeast IL...
Aurora
Tstrms Tstrms Shwrs Mocldy Ptcldy Ptcldy Ptcldy
63/78 65/69 56/65 52/63 51/66 52/69 53/71
50/80 80/80 70/50 30/20 10/10 00/00 00/00
Chicago Downtown
Tstrms Tstrms Shwrs Mocldy Mocldy Ptcldy Ptcldy
62/76 64/68 57/66 56/64 56/65 57/67 58/69
50/90 80/80 60/50 30/20 20/10 00/10 10/10
Chicago O`Hare
Tstrms Tstrms Shwrs Mocldy Mocldy Ptcldy Ptcldy
62/76 64/68 56/64 54/63 54/65 54/68 55/70
50/90 80/80 60/50 30/20 20/10 00/10 00/10
Joliet
Tstrms Tstrms Shwrs Ptcldy Ptcldy Ptcldy Ptcldy
64/80 67/71 58/66 54/65 54/68 54/70 55/72
40/80 80/80 70/60 30/30 10/10 10/10 00/00
Kankakee
Tstrms Tstrms Shwrs Ptcldy Ptcldy Ptcldy Ptcldy
63/82 68/73 56/67 52/66 52/68 52/70 54/72
30/70 70/70 70/60 40/20 20/10 10/00 00/00
Waukegan
Tstrms Tstrms Mocldy Mocldy Mocldy Ptcldy Ptcldy
60/74 62/67 54/65 52/64 52/65 52/67 53/68
80/100 80/70 40/40 30/20 20/10 00/10 00/00
...West central IL...
Jerseyville
Ptcldy Ptcldy Tstrms Mocldy Ptcldy Ptcldy Ptcldy
71/96 70/90 63/76 57/70 51/73 53/74 55/75
20/10 10/40 70/70 60/20 10/00 00/00 00/10
Macomb
Mocldy Tstrms Shwrs Mocldy Ptcldy Ptcldy Ptcldy
69/88 67/77 59/66 54/64 49/67 52/69 54/71
20/20 60/60 70/70 50/30 10/00 00/00 00/10
Quincy
Ptcldy Shwrs Shwrs Mocldy Ptcldy Ptcldy Ptcldy
73/93 70/81 63/69 57/66 52/69 55/71 58/72
10/10 40/70 70/70 50/20 10/00 00/10 10/10
...Central IL...
Decatur
Ptcldy Shwrs Tstrms Mocldy Ptcldy Ptcldy Ptcldy
70/91 69/86 60/72 55/68 52/71 53/72 54/74
10/20 20/50 70/70 60/40 10/00 00/00 10/10
LaSalle/Peru
Tstrms Tstrms Shwrs Ptcldy Ptcldy Ptcldy Ptcldy
66/83 66/72 58/66 53/65 51/68 52/70 54/72
30/60 80/80 70/60 40/30 10/10 10/00 00/00
Peoria
Mocldy Tstrms Shwrs Ptcldy Ptcldy Ptcldy Ptcldy
70/86 68/77 60/68 55/66 53/69 54/71 56/73
10/20 60/70 70/70 40/30 10/00 00/00 00/00
Pontiac
Tstrms Tstrms Shwrs Mocldy Ptcldy Ptcldy Ptcldy
66/85 68/75 57/67 52/66 51/69 52/71 53/73
20/50 70/70 70/70 40/30 10/10 10/00 00/00
Springfield
Ptcldy Shwrs Tstrms Mocldy Ptcldy Ptcldy Ptcldy
73/93 70/86 62/72 56/69 53/72 54/73 56/75
10/10 30/60 70/70 50/30 00/00 00/00 10/10
...East central IL...
Champaign/Urbana
Ptcldy Shwrs Tstrms Mocldy Ptcldy Ptcldy Ptcldy
68/88 69/83 60/70 54/68 52/70 53/72 54/73
10/30 30/50 60/70 50/30 10/00 00/00 00/00
Charleston/Mattoon
Ptcldy Ptcldy Tstrms Ptcldy Ptcldy Ptcldy Ptcldy
71/92 71/89 62/74 56/70 53/72 53/74 55/75
20/30 20/30 60/60 60/40 10/00 00/00 00/00
...Southwest IL...
Belleville
Ptcldy Ptcldy Tstrms Mocldy Ptcldy Ptcldy Ptcldy
73/98 74/95 68/82 62/72 55/75 56/76 58/77
20/10 00/20 50/70 70/30 10/00 00/00 00/10
Chester
Sunny Sunny Tstrms Ptcldy Ptcldy Sunny Ptcldy
70/97 71/95 67/85 60/75 55/76 54/76 56/77
20/10 00/10 40/50 50/20 10/00 00/00 00/10
...South central IL...
Carbondale
Sunny Sunny Tstrms Ptcldy Ptcldy Ptcldy Ptcldy
72/98 73/97 70/88 63/76 57/76 57/77 58/77
20/00 00/10 20/50 50/20 10/00 00/00 00/10
Centralia
Sunny Ptcldy Tstrms Ptcldy Ptcldy Ptcldy Ptcldy
71/97 72/95 67/83 60/74 55/75 55/76 57/77
20/10 00/20 40/60 60/30 10/00 00/00 00/00
Mount Vernon
Sunny Sunny Tstrms Ptcldy Ptcldy Ptcldy Ptcldy
71/98 72/97 67/86 60/75 55/76 55/77 57/78
20/10 00/20 30/50 50/30 10/00 00/00 00/00
...Southeast IL...
Lawrenceville
Sunny Ptcldy Shwrs Ptcldy Ptcldy Ptcldy Ptcldy
71/95 71/95 67/83 60/75 57/74 56/75 57/76
20/10 10/20 40/50 50/40 10/10 00/00 00/00
$$