FPUS63 KILX 181605 SFTIL ILZ001>013-015>021-023>108-182200- Tabular State Forecast for Illinois National Weather Service Lincoln IL 1105 AM CDT Sat Jul 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 Sun Mon Tue Wed Thu Fri Jul 18 Jul 19 Jul 20 Jul 21 Jul 22 Jul 23 Jul 24 ...Northwest IL... Moline/Rock Island Sunny Smoke Ptcldy Sunny Sunny Sunny Ptcldy /90 67/86 67/91 74/87 64/82 60/83 63/84 /20 10/00 00/30 70/70 00/00 00/10 20/20 Sterling/Rock Falls Sunny Smoke Ptcldy Sunny Sunny Sunny Ptcldy /90 65/86 64/90 71/86 62/81 58/82 61/84 /20 00/00 00/40 80/70 00/00 00/00 20/20 ...North central IL... DeKalb Tstrms Smoke Ptcldy Sunny Sunny Sunny Ptcldy /88 64/81 62/86 70/85 60/78 56/80 60/82 /50 10/00 00/30 70/70 10/00 00/00 10/20 Rockford Ptcldy Smoke Ptcldy Sunny Sunny Sunny Ptcldy /90 64/84 63/88 70/85 60/79 57/82 61/83 /20 00/00 00/40 70/50 10/00 00/00 20/20 ...Northeast IL... Aurora Tstrms Smoke Ptcldy Sunny Sunny Sunny Ptcldy /89 66/83 62/86 70/86 62/79 58/81 61/83 /60 20/00 00/10 70/70 10/00 00/00 10/20 Chicago Downtown Tstrms Smoke Ptcldy Shwrs Sunny Sunny Ptcldy /90 69/77 68/90 73/89 66/78 65/83 67/85 /60 20/00 00/10 70/70 20/10 00/00 10/20 Chicago O'Hare Tstrms Smoke Ptcldy Shwrs Sunny Sunny Ptcldy /89 68/81 65/88 72/87 64/78 61/83 65/84 /60 10/00 00/20 70/70 20/00 00/00 10/20 Joliet Tstrms Smoke Ptcldy Shwrs Sunny Sunny Ptcldy /91 67/83 63/87 71/87 64/80 59/82 62/83 /70 30/00 00/10 70/70 10/10 00/00 10/20 Kankakee Tstrms Smoke Ptcldy Shwrs Sunny Sunny Ptcldy /91 66/82 61/87 71/87 63/79 57/81 60/83 /70 70/00 00/00 70/70 10/00 00/00 10/20 Waukegan Ptcldy Smoke Ptcldy Shwrs Sunny Sunny Ptcldy /87 66/76 64/89 70/87 61/77 60/82 64/84 /20 00/00 00/30 70/60 20/00 00/00 10/20 ...West central IL... Jerseyville Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy /92 72/88 69/92 75/93 67/84 62/83 63/85 /10 20/30 20/10 10/10 10/00 00/00 10/20 Macomb Sunny Sunny Sunny Sunny Sunny Sunny Ptcldy /91 69/86 67/91 75/88 65/82 61/82 63/84 /20 30/00 00/10 50/50 00/00 00/10 20/20 Quincy Sunny Sunny Ptcldy Sunny Sunny Sunny Ptcldy /93 73/89 71/93 78/91 69/85 64/84 66/86 /10 30/10 10/10 30/30 00/00 00/10 20/20 ...Central IL... Decatur Sunny Smoke Sunny Shwrs Sunny Sunny Ptcldy /91 69/85 64/88 73/89 65/80 59/80 61/82 /10 40/00 00/00 50/50 10/00 00/00 10/10 LaSalle/Peru Tstrms Smoke Ptcldy Sunny Sunny Sunny Ptcldy /91 67/84 64/88 73/86 64/79 59/81 62/83 /60 30/00 00/10 70/70 00/00 00/00 20/20 Peoria Sunny Smoke Ptcldy Sunny Sunny Sunny Ptcldy /93 69/87 66/91 75/90 66/82 60/83 63/84 /40 40/00 00/10 60/60 00/00 00/00 10/20 Pontiac Tstrms Smoke Ptcldy Shwrs Sunny Sunny Ptcldy /91 67/83 63/88 73/87 63/80 57/81 61/83 /50 60/00 00/10 70/70 10/00 00/00 10/10 Springfield Sunny Smoke Sunny Sunny Sunny Sunny Ptcldy /92 71/87 67/90 75/91 67/83 61/82 63/84 /10 50/10 00/00 40/40 10/00 00/00 10/20 ...East central IL... Champaign/Urbana Sunny Smoke Ptcldy Shwrs Sunny Sunny Ptcldy /91 68/85 64/88 72/89 65/80 58/80 61/82 /20 50/00 00/00 50/50 10/00 00/00 10/10 Charleston/Mattoon Sunny Smoke Sunny Sunny Sunny Sunny Ptcldy /90 70/86 65/89 73/91 66/81 59/81 61/82 /20 50/10 00/00 40/40 20/00 00/00 10/10 ...Southwest IL... Belleville Sunny Tstrms Sunny Sunny Sunny Sunny Ptcldy /94 75/90 72/93 77/96 71/86 65/85 66/87 /10 20/50 30/10 10/20 20/00 00/00 10/20 Chester Sunny Tstrms Sunny Sunny Sunny Sunny Ptcldy /92 73/89 70/90 75/95 70/85 63/83 64/85 /20 10/60 40/20 20/10 10/00 00/00 10/20 ...South central IL... Carbondale Sunny Tstrms Ptcldy Sunny Sunny Sunny Ptcldy /93 75/91 72/92 76/97 72/86 64/84 65/86 /10 10/70 50/20 20/20 20/00 00/00 10/10 Centralia Sunny Ptcldy Ptcldy Sunny Sunny Sunny Ptcldy /92 74/88 70/91 75/95 70/84 63/82 64/84 /10 20/30 10/10 10/20 20/00 00/00 10/20 Mount Vernon Sunny Ptcldy Ptcldy Sunny Sunny Sunny Ptcldy /93 74/89 70/91 75/96 70/85 63/83 64/85 /20 20/40 40/10 10/20 20/00 00/00 00/20 ...Southeast IL... Lawrenceville Sunny Sunny Ptcldy Tstrms Sunny Sunny Ptcldy /92 72/87 68/89 73/93 69/82 62/81 63/83 /20 40/10 10/00 20/50 50/00 00/00 00/10 $$