Tabular State Forecast
Issued by NWS
Issued by NWS
255
FPUS63 KILX 180905
SFTIL
ILZ001>013-015>021-023>108-182200-
Tabular State Forecast for Illinois
National Weather Service Lincoln IL
405 AM 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
Today 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
Fair Tstrms Tstrms Shwrs Mocldy Ptcldy Ptcldy
/76 66/81 64/70 55/64 52/63 49/66 50/69
/30 70/90 90/90 60/70 50/30 10/00 00/00
Sterling/Rock Falls
Fair Tstrms Shwrs Shwrs Mocldy Ptcldy Ptcldy
/74 62/78 61/69 52/64 49/64 47/66 48/69
/20 80/90 90/90 50/60 50/30 10/00 00/00
...North central IL...
DeKalb
Mocldy Tstrms Shwrs Shwrs Mocldy Ptcldy Ptcldy
/72 60/74 61/67 52/62 50/62 48/65 48/68
/10 80/100 90/90 50/60 50/40 10/00 00/00
Rockford
Mocldy Tstrms Shwrs Shwrs Mocldy Ptcldy Ptcldy
/72 60/74 60/67 52/62 49/62 47/65 47/68
/20 90/100 80/80 50/50 40/30 10/00 00/00
...Northeast IL...
Aurora
Ptcldy Tstrms Shwrs Shwrs Mocldy Ptcldy Ptcldy
/72 60/75 62/68 53/63 51/63 50/65 50/68
/10 70/100 90/90 60/60 50/30 20/10 00/00
Chicago Downtown
Ptcldy Tstrms Shwrs Shwrs Mocldy Ptcldy Ptcldy
/70 60/73 62/68 56/64 55/63 55/64 55/66
/00 60/100 90/90 50/60 50/40 30/10 10/10
Chicago O`Hare
Ptcldy Tstrms Shwrs Shwrs Mocldy Ptcldy Ptcldy
/71 60/74 61/67 54/63 53/62 53/64 52/67
/00 70/100 90/90 50/60 50/30 20/10 00/10
Joliet
Mocldy Tstrms Shwrs Shwrs Ptcldy Ptcldy Ptcldy
/75 62/77 65/71 56/65 53/64 52/67 52/70
/10 60/100 90/90 60/60 50/30 20/10 00/00
Kankakee
Mocldy Tstrms Shwrs Shwrs Ptcldy Ptcldy Ptcldy
/77 61/79 64/74 55/66 51/65 50/68 50/71
/10 50/100 80/80 70/70 60/30 20/00 00/10
Waukegan
Ptcldy Tstrms Shwrs Shwrs Mocldy Ptcldy Ptcldy
/69 58/71 58/67 52/64 51/63 51/64 51/66
/10 80/100 80/80 50/50 40/30 20/10 10/00
...West central IL...
Jerseyville
Ptcldy Ptcldy Ptcldy Tstrms Ptcldy Ptcldy Ptcldy
/92 70/93 70/89 63/77 56/71 51/73 51/75
/20 20/10 10/30 60/70 70/20 00/00 00/00
Macomb
Fair Shwrs Shwrs Shwrs Mocldy Ptcldy Ptcldy
/81 68/85 66/77 58/66 54/63 49/67 50/70
/20 30/50 70/80 70/70 60/40 00/00 00/10
Quincy
Ptcldy Mocldy Shwrs Shwrs Mocldy Ptcldy Ptcldy
/88 72/90 70/81 62/69 57/65 52/69 53/71
/10 10/10 60/60 70/70 50/30 00/00 00/10
...Central IL...
Decatur
Ptcldy Ptcldy Shwrs Tstrms Ptcldy Ptcldy Ptcldy
/86 67/89 68/85 60/73 55/68 51/70 51/73
/20 10/30 40/50 60/70 70/30 10/00 00/00
LaSalle/Peru
Fair Shwrs Shwrs Shwrs Ptcldy Ptcldy Ptcldy
/76 64/80 65/72 56/65 53/64 50/67 50/70
/20 60/90 90/90 60/70 60/30 10/00 00/00
Peoria
Mocldy Tstrms Shwrs Tstrms Ptcldy Ptcldy Ptcldy
/80 68/85 68/77 59/68 56/66 52/68 53/71
/20 40/70 70/80 80/70 60/30 10/10 00/00
Pontiac
Mocldy Tstrms Shwrs Shwrs Ptcldy Ptcldy Ptcldy
/78 64/83 66/76 55/67 52/65 50/68 50/71
/20 40/80 80/80 70/70 60/30 10/00 00/00
Springfield
Ptcldy Ptcldy Shwrs Tstrms Ptcldy Ptcldy Ptcldy
/88 69/91 70/86 62/74 56/69 52/72 53/75
/20 10/20 40/60 70/70 60/30 10/00 00/00
...East central IL...
Champaign/Urbana
Mocldy Mocldy Shwrs Tstrms Ptcldy Ptcldy Ptcldy
/82 65/86 67/82 59/71 54/67 52/69 51/71
/20 10/40 50/50 60/70 70/40 10/00 00/00
Charleston/Mattoon
Ptcldy Ptcldy Ptcldy Tstrms Ptcldy Ptcldy Ptcldy
/87 67/91 70/88 62/76 56/70 52/71 52/73
/20 10/30 30/30 60/70 70/30 00/00 00/00
...Southwest IL...
Belleville
Sunny Ptcldy Ptcldy Tstrms Ptcldy Ptcldy Ptcldy
/96 72/96 73/94 68/83 61/73 56/75 55/77
/20 20/00 00/20 50/70 70/30 00/00 00/00
Chester
Sunny Sunny Ptcldy Tstrms Ptcldy Ptcldy Ptcldy
/96 70/96 71/95 67/86 60/75 54/76 53/77
/20 20/00 00/10 30/60 60/20 00/00 00/00
...South central IL...
Carbondale
Sunny Sunny Ptcldy Tstrms Ptcldy Ptcldy Ptcldy
/98 72/97 73/96 70/89 63/76 57/75 56/77
/20 30/00 00/10 10/50 50/20 00/00 00/00
Centralia
Sunny Sunny Ptcldy Tstrms Ptcldy Ptcldy Ptcldy
/95 70/95 72/94 67/85 60/75 55/75 54/77
/20 20/00 10/10 40/60 60/30 00/00 00/00
Mount Vernon
Sunny Ptcldy Ptcldy Tstrms Ptcldy Ptcldy Ptcldy
/97 70/97 71/96 68/87 61/76 55/76 54/78
/10 20/10 10/10 30/60 60/20 00/00 00/00
...Southeast IL...
Lawrenceville
Sunny Ptcldy Ptcldy Tstrms Ptcldy Ptcldy Ptcldy
/93 69/95 71/94 67/85 61/75 56/75 55/76
/20 20/20 20/10 30/60 60/30 10/00 00/00
$$