Tabular State Forecast
Issued by NWS
Issued by NWS
642
FPUS63 KILX 150205
SFTIL
ILZ001>013-015>021-023>108-151000-
Tabular State Forecast for Illinois
National Weather Service Lincoln IL
905 PM CDT Fri Aug 14 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
Aug 15 Aug 16 Aug 17 Aug 18 Aug 19 Aug 20 Aug 21
...Northwest IL...
Moline/Rock Island
Tstrms Ptcldy Sunny Ptcldy Tstrms Ptcldy Ptcldy
72/89 73/85 65/82 64/84 68/81 63/77 61/78
90/90 60/40 30/00 00/20 60/60 20/20 20/20
Sterling/Rock Falls
Tstrms Ptcldy Sunny Ptcldy Shwrs Ptcldy Ptcldy
69/88 72/84 62/81 61/83 66/80 61/77 59/78
80/80 40/30 20/00 00/20 60/60 20/20 20/20
...North central IL...
DeKalb
Tstrms Ptcldy Sunny Ptcldy Shwrs Ptcldy Ptcldy
69/81 71/83 62/80 60/80 65/79 60/75 58/75
90/90 40/30 20/00 00/20 60/60 20/20 20/20
Rockford
Tstrms Ptcldy Sunny Ptcldy Shwrs Ptcldy Ptcldy
68/82 71/83 62/81 60/81 65/79 59/76 58/77
70/70 40/30 20/00 00/20 60/60 20/20 20/20
...Northeast IL...
Aurora
Tstrms Ptcldy Sunny Ptcldy Shwrs Ptcldy Ptcldy
70/81 72/83 65/80 62/81 66/80 62/75 60/76
90/100 40/30 20/00 00/20 50/50 20/20 20/20
Chicago Downtown
Tstrms Ptcldy Ptcldy Ptcldy Shwrs Ptcldy Ptcldy
72/81 73/84 69/79 67/82 69/80 66/74 65/75
70/100 40/30 20/00 00/10 50/50 20/10 20/20
Chicago O`Hare
Tstrms Ptcldy Sunny Ptcldy Shwrs Ptcldy Ptcldy
71/81 73/85 67/81 65/82 68/80 64/75 62/76
70/90 40/30 20/00 00/10 50/50 20/10 10/10
Joliet
Tstrms Mocldy Sunny Ptcldy Shwrs Ptcldy Ptcldy
72/82 72/85 67/81 63/82 67/81 64/77 61/78
100/100 40/30 30/00 00/20 50/50 20/20 20/20
Kankakee
Tstrms Mocldy Ptcldy Ptcldy Tstrms Ptcldy Ptcldy
71/83 72/86 66/81 61/82 66/82 63/77 60/77
100/100 40/30 30/00 00/10 40/50 30/20 20/10
Waukegan
Tstrms Ptcldy Sunny Ptcldy Tstrms Ptcldy Ptcldy
70/77 71/83 64/78 63/81 65/77 61/72 60/73
60/70 40/30 20/00 00/20 60/60 20/10 10/20
...West central IL...
Jerseyville
Ptcldy Ptcldy Ptcldy Sunny Ptcldy Ptcldy Ptcldy
75/96 74/93 69/85 64/88 70/91 67/82 64/82
20/30 10/10 50/50 10/00 10/20 30/30 20/20
Macomb
Tstrms Mocldy Sunny Sunny Ptcldy Ptcldy Ptcldy
72/91 72/85 65/82 63/85 68/83 64/77 61/78
80/70 30/40 40/00 00/00 40/40 20/20 20/20
Quincy
Tstrms Mocldy Sunny Sunny Ptcldy Ptcldy Ptcldy
73/94 75/89 69/85 67/89 72/88 68/80 65/80
60/50 30/20 20/10 00/00 20/20 30/30 20/20
...Central IL...
Decatur
Tstrms Ptcldy Sunny Sunny Ptcldy Ptcldy Ptcldy
73/93 74/90 68/84 63/85 68/87 66/80 63/80
40/50 10/20 20/20 10/00 20/20 20/20 10/20
LaSalle/Peru
Tstrms Ptcldy Sunny Ptcldy Shwrs Ptcldy Ptcldy
72/83 73/85 66/81 63/83 68/82 63/77 61/77
100/100 40/30 30/00 00/20 50/50 20/20 20/20
Peoria
Tstrms Ptcldy Sunny Sunny Ptcldy Ptcldy Ptcldy
73/92 75/87 67/84 65/85 70/85 66/79 63/79
90/90 40/40 40/00 00/00 40/40 20/20 10/10
Pontiac
Tstrms Ptcldy Sunny Sunny Ptcldy Ptcldy Ptcldy
72/84 73/87 66/82 62/84 67/84 63/78 61/78
100/100 40/30 30/00 00/00 40/40 30/30 20/10
Springfield
Tstrms Ptcldy Sunny Sunny Ptcldy Ptcldy Ptcldy
74/94 75/91 69/84 65/86 70/89 67/81 64/81
50/60 20/20 20/10 00/00 10/20 30/30 10/20
...East central IL...
Champaign/Urbana
Tstrms Ptcldy Ptcldy Sunny Ptcldy Ptcldy Ptcldy
71/91 74/89 68/83 63/84 67/86 65/79 62/78
50/60 20/30 30/10 10/00 30/30 30/30 20/20
Charleston/Mattoon
Ptcldy Ptcldy Ptcldy Sunny Ptcldy Ptcldy Ptcldy
72/93 74/91 69/84 63/85 68/88 66/81 62/80
20/30 10/10 30/30 10/00 10/20 30/20 20/20
...Southwest IL...
Belleville
Ptcldy Ptcldy Shwrs Ptcldy Ptcldy Ptcldy Ptcldy
77/98 77/97 73/88 69/90 73/95 71/87 68/85
10/10 00/10 50/50 20/10 10/10 30/30 10/20
Chester
Sunny Sunny Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy
77/99 74/98 71/87 67/89 71/95 69/86 66/83
00/00 00/10 40/40 30/10 00/10 20/30 20/20
...South central IL...
Carbondale
Sunny Sunny Ptcldy Ptcldy Ptcldy Ptcldy Ptcldy
75/99 75/99 73/90 68/91 72/95 71/88 68/85
00/00 00/00 30/30 30/10 10/10 20/30 20/20
Centralia
Sunny Sunny Shwrs Sunny Ptcldy Ptcldy Ptcldy
76/97 75/96 72/87 66/88 71/93 70/86 66/83
10/10 00/10 50/50 20/10 10/10 30/20 20/20
Mount Vernon
Sunny Sunny Shwrs Sunny Ptcldy Ptcldy Ptcldy
75/99 75/98 72/89 66/90 71/95 70/88 66/85
00/00 00/10 50/50 20/10 10/10 30/20 20/20
...Southeast IL...
Lawrenceville
Sunny Sunny Shwrs Sunny Ptcldy Ptcldy Ptcldy
74/95 75/95 72/87 66/87 69/92 69/86 65/83
10/10 00/10 50/50 20/00 00/10 40/20 20/20
$$