Tabular State Forecast
Issued by NWS
Issued by NWS
249
FPUS63 KILX 190205
SFTIL
ILZ001>013-015>021-023>108-191000-
Tabular State Forecast for Illinois
National Weather Service Lincoln IL
905 PM CDT Tue Aug 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
Wed Thu Fri Sat Sun Mon Tue
Aug 19 Aug 20 Aug 21 Aug 22 Aug 23 Aug 24 Aug 25
...Northwest IL...
Moline/Rock Island
Ptcldy Sunny Ptcldy Sunny Ptcldy Ptcldy Ptcldy
66/81 61/81 63/82 64/80 61/77 61/79 63/81
40/10 20/00 20/30 30/20 20/10 20/20 10/10
Sterling/Rock Falls
Ptcldy Ptcldy Tstrms Sunny Ptcldy Ptcldy Ptcldy
64/80 58/80 60/80 62/79 57/76 58/77 61/81
50/10 10/00 10/50 50/20 20/10 10/20 20/10
...North central IL...
DeKalb
Ptcldy Sunny Ptcldy Sunny Ptcldy Ptcldy Ptcldy
63/79 57/79 59/78 62/77 57/75 57/76 60/79
80/10 10/00 10/30 30/20 20/00 10/20 20/10
Rockford
Ptcldy Sunny Shwrs Sunny Ptcldy Ptcldy Ptcldy
63/79 56/80 60/79 61/78 57/76 57/77 60/80
70/10 10/00 10/50 50/10 10/00 10/20 20/10
...Northeast IL...
Aurora
Ptcldy Sunny Ptcldy Sunny Sunny Ptcldy Ptcldy
64/79 59/79 60/78 62/77 59/75 58/76 61/79
80/20 20/00 00/30 30/20 20/00 10/20 20/10
Chicago Downtown
Ptcldy Sunny Ptcldy Ptcldy Sunny Ptcldy Ptcldy
67/76 65/78 65/80 67/78 64/75 63/76 65/79
80/20 20/00 00/30 40/20 20/00 10/20 20/10
Chicago O`Hare
Ptcldy Sunny Ptcldy Sunny Sunny Ptcldy Ptcldy
66/79 62/80 63/80 65/78 62/76 61/77 63/80
80/20 20/00 00/30 30/20 20/00 10/20 20/10
Joliet
Ptcldy Sunny Ptcldy Sunny Sunny Ptcldy Ptcldy
66/80 61/80 61/79 64/78 60/76 59/76 62/80
80/20 20/00 00/30 30/20 20/10 10/20 20/10
Kankakee
Mocldy Sunny Ptcldy Sunny Sunny Ptcldy Ptcldy
66/79 59/79 59/79 62/78 59/76 57/76 60/80
60/20 20/00 00/20 30/20 20/10 10/10 20/10
Waukegan
Ptcldy Sunny Ptcldy Sunny Sunny Ptcldy Ptcldy
63/76 60/78 62/79 62/77 59/74 59/75 61/78
80/20 20/00 10/30 30/20 20/00 10/20 20/20
...West central IL...
Jerseyville
Tstrms Ptcldy Sunny Sunny Sunny Ptcldy Ptcldy
67/78 64/82 62/85 64/84 61/81 62/84 65/86
70/70 20/10 10/00 20/20 20/10 20/20 20/20
Macomb
Ptcldy Sunny Sunny Sunny Ptcldy Ptcldy Ptcldy
66/79 61/80 61/81 63/80 60/77 60/79 63/81
40/30 20/00 00/20 20/20 20/10 20/20 10/10
Quincy
Mocldy Sunny Sunny Sunny Ptcldy Ptcldy Ptcldy
69/80 65/82 65/85 67/83 64/80 65/83 67/85
40/40 30/00 00/00 20/20 20/10 30/30 10/10
...Central IL...
Decatur
Mocldy Ptcldy Sunny Sunny Sunny Ptcldy Ptcldy
66/79 62/80 60/82 63/81 60/78 60/80 63/83
20/40 40/00 00/00 20/20 20/10 20/20 20/20
LaSalle/Peru
Ptcldy Sunny Ptcldy Sunny Sunny Ptcldy Ptcldy
67/80 60/80 61/80 64/79 60/76 60/77 62/81
50/10 10/00 10/30 30/20 20/10 10/10 10/10
Peoria
Ptcldy Sunny Sunny Sunny Sunny Ptcldy Ptcldy
68/80 63/81 63/82 65/81 61/78 62/79 64/82
20/30 30/00 00/10 20/20 20/10 20/20 10/10
Pontiac
Mocldy Sunny Sunny Sunny Sunny Ptcldy Ptcldy
67/79 60/80 60/80 64/79 59/77 59/78 62/81
30/30 20/00 00/20 30/20 20/00 10/20 10/10
Springfield
Mocldy Ptcldy Sunny Sunny Sunny Ptcldy Ptcldy
68/81 64/82 62/84 65/83 61/80 62/82 65/84
30/30 30/00 00/00 20/20 20/10 20/20 20/20
...East central IL...
Champaign/Urbana
Tstrms Ptcldy Sunny Sunny Sunny Ptcldy Ptcldy
66/79 62/80 60/81 63/80 60/78 59/79 62/82
10/50 50/00 00/10 20/20 20/00 10/10 10/10
Charleston/Mattoon
Mocldy Ptcldy Sunny Sunny Sunny Ptcldy Ptcldy
66/79 63/81 60/82 63/82 59/79 59/81 63/83
20/40 30/10 00/10 20/20 20/00 10/10 20/20
...Southwest IL...
Belleville
Tstrms Ptcldy Sunny Sunny Ptcldy Ptcldy Ptcldy
71/80 68/84 65/86 67/87 65/83 65/86 68/88
60/80 20/10 10/00 20/20 20/10 30/30 30/30
Chester
Tstrms Mocldy Sunny Sunny Sunny Ptcldy Sunny
68/83 66/82 64/85 65/86 64/82 63/85 66/87
30/80 30/20 10/00 10/20 20/10 30/30 20/20
...South central IL...
Carbondale
Shwrs Tstrms Sunny Sunny Sunny Ptcldy Ptcldy
68/86 67/84 65/86 65/87 64/85 64/86 68/89
10/70 70/50 10/10 10/20 10/10 20/20 20/20
Centralia
Tstrms Ptcldy Sunny Sunny Sunny Ptcldy Ptcldy
68/81 66/83 63/85 65/85 63/82 62/84 66/87
20/80 30/20 20/00 10/20 20/00 20/20 20/20
Mount Vernon
Tstrms Ptcldy Sunny Sunny Sunny Ptcldy Ptcldy
68/83 66/84 63/86 64/86 63/84 62/85 66/88
20/80 60/40 10/00 10/20 20/00 20/20 20/20
...Southeast IL...
Lawrenceville
Tstrms Ptcldy Sunny Sunny Sunny Ptcldy Sunny
66/81 66/83 63/85 64/85 62/82 61/83 65/86
10/60 50/30 10/00 10/20 20/00 10/20 20/20
$$