Tabular State Forecast
Issued by NWS
Issued by NWS
292
FPUS63 KILX 170905
SFTIL
ILZ001>013-015>021-023>108-172200-
Tabular State Forecast for Illinois
National Weather Service Lincoln IL
405 AM CDT Mon Aug 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
Today Tue Wed Thu Fri Sat Sun
Aug 17 Aug 18 Aug 19 Aug 20 Aug 21 Aug 22 Aug 23
...Northwest IL...
Moline/Rock Island
Sunny Tstrms Ptcldy Ptcldy Sunny Ptcldy Sunny
/80 63/81 65/79 62/78 61/79 64/79 62/76
/00 00/60 60/40 10/10 10/10 20/20 20/10
Sterling/Rock Falls
Sunny Tstrms Ptcldy Ptcldy Sunny Ptcldy Sunny
/80 60/80 63/78 59/78 58/78 61/78 59/75
/00 00/60 70/30 10/00 10/20 30/20 20/10
...North central IL...
DeKalb
Sunny Tstrms Ptcldy Sunny Sunny Ptcldy Sunny
/78 62/78 63/77 59/76 57/77 61/77 58/74
/00 00/60 70/40 10/00 10/20 30/30 20/10
Rockford
Sunny Tstrms Ptcldy Sunny Sunny Ptcldy Sunny
/80 62/79 62/77 58/77 58/78 61/77 58/75
/00 00/60 60/20 10/10 20/20 30/30 20/10
...Northeast IL...
Aurora
Ptcldy Tstrms Ptcldy Sunny Sunny Ptcldy Sunny
/78 62/79 65/77 61/77 59/77 61/77 60/75
/10 10/50 70/60 10/00 10/10 20/30 30/10
Chicago Downtown
Ptcldy Ptcldy Ptcldy Sunny Sunny Ptcldy Sunny
/74 65/81 68/75 66/74 65/79 66/78 65/75
/20 10/40 70/50 10/00 10/10 20/30 30/10
Chicago O`Hare
Ptcldy Tstrms Ptcldy Sunny Sunny Ptcldy Sunny
/78 64/81 66/77 64/77 62/80 64/79 63/76
/20 10/50 70/50 10/00 10/10 30/30 30/10
Joliet
Ptcldy Ptcldy Shwrs Ptcldy Sunny Ptcldy Sunny
/78 63/79 66/78 62/77 60/78 63/78 61/76
/20 10/40 70/60 10/00 10/10 20/30 30/10
Kankakee
Ptcldy Ptcldy Shwrs Ptcldy Sunny Ptcldy Sunny
/78 62/79 66/77 60/76 58/78 61/78 60/76
/20 10/20 70/70 20/10 10/10 20/30 30/10
Waukegan
Ptcldy Tstrms Ptcldy Sunny Sunny Ptcldy Sunny
/75 64/80 64/73 62/74 61/78 62/77 60/73
/20 00/50 60/20 10/00 00/20 30/30 30/10
...West central IL...
Jerseyville
Sunny Sunny Tstrms Tstrms Sunny Sunny Sunny
/83 62/86 68/83 65/81 62/82 62/84 62/81
/00 00/00 70/70 50/50 20/10 10/10 10/10
Macomb
Sunny Ptcldy Shwrs Ptcldy Sunny Ptcldy Sunny
/79 61/82 66/78 62/78 60/79 62/79 61/77
/00 00/20 60/60 10/10 10/10 20/20 20/10
Quincy
Sunny Sunny Tstrms Ptcldy Sunny Sunny Sunny
/81 65/85 69/81 66/80 64/82 66/83 64/80
/00 00/10 80/80 20/20 10/10 20/20 10/10
...Central IL...
Decatur
Sunny Sunny Tstrms Ptcldy Sunny Sunny Sunny
/81 62/83 67/81 63/79 60/80 61/81 61/79
/00 00/00 60/60 30/20 10/10 10/20 20/10
LaSalle/Peru
Sunny Tstrms Ptcldy Ptcldy Sunny Ptcldy Sunny
/79 63/79 66/77 61/76 59/78 63/78 61/75
/00 00/50 70/60 10/10 10/10 20/20 20/10
Peoria
Sunny Ptcldy Shwrs Ptcldy Sunny Ptcldy Sunny
/80 63/83 68/79 64/79 62/80 64/80 63/78
/00 00/20 60/50 20/10 10/10 20/20 20/10
Pontiac
Sunny Ptcldy Shwrs Ptcldy Sunny Ptcldy Sunny
/79 63/80 67/78 61/77 59/79 62/78 60/76
/00 00/20 70/70 20/10 10/10 20/20 20/10
Springfield
Sunny Sunny Shwrs Ptcldy Sunny Sunny Sunny
/82 63/84 68/82 65/81 62/82 63/83 63/80
/00 00/00 70/70 20/20 20/10 10/10 10/10
...East central IL...
Champaign/Urbana
Ptcldy Sunny Shwrs Ptcldy Sunny Sunny Sunny
/80 61/82 66/80 62/78 60/79 61/80 61/78
/10 00/00 50/60 30/10 10/10 10/20 20/10
Charleston/Mattoon
Ptcldy Sunny Shwrs Shwrs Sunny Sunny Sunny
/81 61/83 66/82 64/80 61/81 61/82 61/80
/10 00/00 50/60 50/50 20/10 10/20 20/00
...Southwest IL...
Belleville
Ptcldy Sunny Tstrms Tstrms Sunny Sunny Sunny
/84 66/88 71/87 69/82 66/84 65/86 65/84
/10 00/00 60/60 60/60 40/10 10/10 10/10
Chester
Ptcldy Sunny Tstrms Tstrms Ptcldy Sunny Sunny
/85 64/87 69/88 67/82 64/82 63/85 64/83
/10 00/00 60/70 70/70 30/10 10/10 10/10
...South central IL...
Carbondale
Ptcldy Sunny Shwrs Tstrms Ptcldy Sunny Sunny
/87 65/89 69/91 69/85 66/85 64/87 65/86
/00 00/00 30/70 70/70 30/10 10/10 10/10
Centralia
Ptcldy Sunny Tstrms Tstrms Sunny Sunny Sunny
/84 64/86 69/86 67/82 64/83 63/84 64/83
/10 00/00 50/70 60/60 50/10 10/10 10/10
Mount Vernon
Ptcldy Sunny Shwrs Tstrms Sunny Sunny Sunny
/85 63/87 68/88 67/83 63/84 62/86 63/84
/10 00/00 40/70 70/70 40/10 10/10 10/10
...Southeast IL...
Lawrenceville
Ptcldy Sunny Shwrs Tstrms Sunny Sunny Sunny
/85 64/85 67/85 67/82 63/83 62/84 63/83
/20 00/00 30/60 60/60 40/10 10/20 20/00
$$