Tabular State Forecast
Issued by NWS
Issued by NWS
417
FPUS63 KILX 212106
SFTIL
ILZ001>013-015>021-023>108-221000-
Tabular State Forecast for Illinois
National Weather Service Lincoln IL
405 PM CDT Fri Aug 21 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 22 Aug 23 Aug 24 Aug 25 Aug 26 Aug 27 Aug 28
...Northwest IL...
Moline/Rock Island
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Ptcldy
64/82 59/79 59/78 62/80 66/83 64/82 64/82
60/00 00/00 00/00 10/10 30/30 20/10 10/20
Sterling/Rock Falls
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Ptcldy
62/81 56/77 55/77 59/79 63/82 62/81 62/81
60/00 00/00 00/00 00/10 30/30 20/20 20/10
...North central IL...
DeKalb
Sunny Sunny Sunny Ptcldy Ptcldy Sunny Ptcldy
61/78 56/76 54/76 58/78 63/80 63/80 61/80
60/10 10/00 00/00 00/00 30/30 20/20 20/10
Rockford
Sunny Sunny Sunny Ptcldy Ptcldy Sunny Ptcldy
61/80 55/76 54/77 58/79 63/82 62/81 61/81
60/00 00/00 00/00 00/20 30/30 20/10 10/10
...Northeast IL...
Aurora
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Ptcldy
62/79 58/76 55/76 59/78 63/80 63/80 63/80
60/20 20/00 00/00 00/00 20/20 20/20 20/10
Chicago Downtown
Ptcldy Sunny Sunny Ptcldy Ptcldy Sunny Ptcldy
66/79 63/75 61/73 63/79 67/82 67/80 67/80
60/20 20/00 00/00 00/00 20/20 20/20 20/20
Chicago O`Hare
Sunny Sunny Sunny Ptcldy Ptcldy Sunny Ptcldy
65/80 61/77 59/78 62/80 66/82 66/82 65/81
60/20 20/00 00/00 00/00 20/20 20/20 20/20
Joliet
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Ptcldy
63/79 60/76 57/76 60/78 64/81 65/81 64/81
60/20 20/00 00/00 00/00 20/20 20/20 20/10
Kankakee
Ptcldy Sunny Ptcldy Ptcldy Ptcldy Sunny Ptcldy
63/79 59/76 55/77 58/78 63/82 63/82 63/81
60/20 20/00 00/00 00/00 20/20 20/20 20/10
Waukegan
Ptcldy Sunny Sunny Ptcldy Ptcldy Sunny Ptcldy
63/78 58/75 58/73 61/78 64/81 63/79 63/78
60/30 30/00 00/00 00/10 30/30 20/20 20/10
...West central IL...
Jerseyville
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Ptcldy
67/85 61/82 60/80 64/84 66/86 65/87 66/86
10/00 00/00 00/10 10/10 10/10 10/10 10/10
Macomb
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Ptcldy
64/81 59/78 58/77 62/80 65/82 63/81 63/81
60/10 00/00 00/10 10/10 20/20 20/20 20/10
Quincy
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Ptcldy
67/84 62/81 63/80 66/84 68/86 66/85 67/85
10/00 00/00 00/20 10/10 10/10 10/10 10/20
...Central IL...
Decatur
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Ptcldy
65/82 59/79 57/79 61/81 64/84 64/84 64/84
30/10 00/00 00/00 10/10 20/20 10/20 20/10
LaSalle/Peru
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Ptcldy
63/80 58/77 57/77 60/79 65/82 64/81 64/81
60/10 10/00 00/00 00/00 20/20 20/20 20/10
Peoria
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Sunny
65/82 60/79 59/78 62/80 66/83 65/83 65/82
30/10 00/00 00/00 00/00 20/20 20/20 20/10
Pontiac
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Ptcldy
64/80 58/77 56/78 60/79 64/83 64/82 63/82
60/20 20/00 00/00 00/00 20/20 20/20 20/10
Springfield
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Ptcldy
67/84 61/81 59/81 63/83 66/86 65/86 66/86
20/00 00/00 00/00 10/10 20/20 20/20 20/10
...East central IL...
Champaign/Urbana
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Sunny
65/81 60/78 56/78 60/80 63/83 64/84 64/83
40/10 10/00 00/00 10/10 10/20 20/20 20/10
Charleston/Mattoon
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Sunny
65/83 60/80 57/79 61/82 64/85 64/86 64/85
40/10 00/00 00/00 00/10 10/10 10/20 20/10
...Southwest IL...
Belleville
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Ptcldy
70/87 65/83 63/82 66/86 69/88 68/89 69/89
10/00 00/00 00/10 10/10 10/10 10/10 10/10
Chester
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Sunny
67/86 64/82 61/81 64/84 67/86 66/87 66/87
00/00 00/00 00/10 20/20 20/20 10/10 10/10
...South central IL...
Carbondale
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Sunny
68/88 64/84 63/84 65/86 68/88 67/89 67/89
00/00 00/00 00/10 20/20 20/20 20/10 10/20
Centralia
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Sunny
68/86 63/82 60/81 64/84 66/87 66/87 66/87
10/10 00/00 00/10 10/10 10/10 10/10 10/10
Mount Vernon
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Sunny
67/87 62/84 60/83 63/86 66/88 66/89 66/88
00/00 00/00 00/00 10/10 20/10 10/10 10/10
...Southeast IL...
Lawrenceville
Sunny Sunny Ptcldy Ptcldy Ptcldy Sunny Sunny
66/85 62/83 58/82 62/84 65/87 66/88 66/88
20/10 00/00 00/00 10/10 10/20 20/10 10/10
$$