Point Forecast Matrices
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
171 FOUS53 KLOT 221515 PFMLOT Point Forecast Matrices National Weather Service Chicago/Romeoville IL 1015 AM CDT Fri Aug 22 2025 ILZ104-222100- Chicago O`Hare International Airport-Cook IL 41.99N 87.91W Elev. 667 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 66 83 58 74 Temp 79 81 77 72 69 67 67 76 81 80 73 68 64 60 59 68 72 72 68 Dewpt 62 61 63 63 63 63 63 67 65 61 58 56 55 53 53 54 52 52 52 RH 56 51 62 73 81 87 87 74 58 52 59 65 73 78 80 61 49 49 57 Wind dir SW S E S SW SW W W W W NW NW NW W W W W W NW Wind spd 4 5 6 3 4 5 6 8 10 11 10 9 6 6 6 10 13 13 11 Clouds SC SC B1 B1 B1 B1 B1 SC SC SC FW FW FW CL CL FW SC SC SC PoP 12hr 0 10 20 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S Tstms S S Heat index 81 82 83 81 Max heat 81 82 83 83 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 55 70 54 72 54 76 57 79 Temp 60 56 68 65 58 55 69 67 58 56 73 70 61 59 76 72 Dewpt 50 49 47 48 49 48 46 46 48 48 48 49 51 51 53 54 PWind dir NW NW NW N NW W SW SW Wind char GN GN LT GN LT LT LT LT Avg clouds FW FW FW SC FW FW FW SC FW FW FW FW FW SC SC SC PoP 12hr 5 5 5 5 0 5 5 5 $$ ILZ003-222100- Greater Rockford Airport-Winnebago IL 42.20N 89.11W Elev. 745 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 65 80 52 72 Temp 78 80 76 69 66 66 66 74 78 76 69 61 57 54 54 65 69 70 65 Dewpt 64 63 64 63 62 63 63 66 63 59 56 55 53 51 51 54 53 52 51 RH 62 56 66 81 87 90 90 76 60 56 63 81 86 90 90 68 57 53 60 Wind dir SW W SW SW SW SW W W W NW NW NW W W W W W W NW Wind spd 4 5 5 3 4 5 5 8 11 12 10 6 5 5 5 10 13 14 10 Clouds SC B1 B1 B1 B1 B2 B1 SC FW FW FW CL CL CL CL CL SC FW FW PoP 12hr 0 20 10 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Heat index 82 Max heat 82 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 49 69 47 71 47 74 52 77 Temp 54 50 66 63 52 49 68 64 51 49 71 68 55 54 73 70 Dewpt 49 46 48 49 48 46 49 49 47 45 51 53 50 49 56 57 PWind dir NW NW NW NW NW W SW SW Wind char LT GN LT LT LT LT LT LT Avg clouds FW CL FW SC FW FW FW FW FW FW FW FW FW SC SC SC PoP 12hr 0 0 0 0 0 0 5 5 $$ ILZ104-222100- Chicago Midway Airport-Cook IL 41.78N 87.76W Elev. 612 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 67 83 59 74 Temp 79 81 76 71 69 67 67 76 81 81 74 70 65 62 60 69 73 73 69 Dewpt 63 63 64 64 63 63 63 67 65 62 59 57 56 54 54 54 53 52 52 RH 58 54 66 79 81 87 87 74 58 53 59 63 73 75 81 59 49 48 55 Wind dir SE E E S SW SW SW W W W NW NW NW W W W W W NW Wind spd 4 5 5 3 4 4 6 9 10 12 13 11 10 9 9 11 13 14 13 Clouds SC SC SC SC B1 B1 B1 SC SC SC FW FW CL CL FW CL SC SC SC PoP 12hr 0 10 20 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S Tstms S S Heat index 82 83 82 Max heat 82 83 83 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 56 70 55 72 55 75 58 78 Temp 61 57 69 66 59 57 69 66 59 57 73 70 62 59 75 72 Dewpt 51 50 47 49 50 49 47 47 49 49 48 49 51 51 53 54 PWind dir NW NW NW N NW W SW SW Wind char GN GN GN GN LT LT LT GN Avg clouds FW FW FW SC FW FW FW SC SC FW FW FW FW SC SC SC PoP 12hr 10 5 5 5 0 5 0 5 $$ ILZ021-222100- Morris-Grundy IL 41.43N 88.42W Elev. 569 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 64 83 54 73 Temp 79 81 76 69 66 65 65 75 81 81 73 65 60 56 55 67 72 72 68 Dewpt 63 63 64 63 62 62 63 69 69 66 61 58 55 53 53 57 56 55 54 RH 58 54 66 81 87 90 93 82 67 60 66 78 84 90 93 70 57 55 61 Wind dir SW SW W W SW SW W W W W NW NW NW W W NW NW NW NW Wind spd 2 3 2 1 2 3 4 6 9 11 9 6 5 5 5 9 12 13 9 Clouds SC SC SC SC B1 B1 B1 B1 B1 SC FW FW CL CL CL CL SC FW FW PoP 12hr 0 5 20 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S Tstms S S Heat index 82 84 83 Max heat 82 84 84 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 51 70 50 72 49 75 53 79 Temp 57 52 68 65 54 51 70 66 53 51 73 69 56 54 75 71 Dewpt 51 49 51 51 50 48 50 50 48 47 52 54 50 50 57 57 PWind dir NW NW NW NW NW W SW SW Wind char LT GN LT LT LT LT LT LT Avg clouds FW FW FW SC FW FW FW FW FW FW FW FW FW SC SC SC PoP 12hr 0 0 0 0 5 0 0 5 $$ ILZ006-222100- Waukegan-Lake IL 42.42N 87.87W Elev. 745 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 66 80 57 72 Temp 79 79 75 69 68 67 67 75 79 77 71 65 61 58 57 67 71 70 66 Dewpt 62 63 64 64 63 63 63 68 66 62 59 57 55 54 54 56 55 55 54 RH 56 58 69 84 84 87 87 79 64 60 66 75 81 86 90 68 57 59 65 Wind dir S SE E SW SW SW W W W W NW NW W W W W W W NW Wind spd 6 6 6 3 5 6 8 9 10 12 10 9 8 8 9 10 13 13 11 Clouds SC SC B1 B1 B1 B1 B1 SC FW FW FW FW CL FW CL FW FW SC SC PoP 12hr 0 20 20 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 53 69 53 70 53 74 57 77 Temp 58 54 67 64 57 54 68 65 57 55 71 68 60 59 74 71 Dewpt 51 50 51 52 51 49 49 50 50 50 51 54 53 52 58 58 PWind dir NW NW NW NW NW W SW SW Wind char GN GN LT GN LT LT LT GN Avg clouds FW FW FW SC FW FW FW FW FW FW CL FW FW SC SC SC PoP 12hr 10 5 5 5 5 0 5 5 $$ ILZ021-222100- Pontiac-Livingston IL 40.92N 88.63W Elev. 648 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 63 83 54 74 Temp 79 82 78 69 66 64 64 74 80 81 74 64 59 56 54 67 72 73 68 Dewpt 63 63 64 64 62 62 63 69 70 67 63 59 56 53 53 57 57 56 55 RH 58 53 62 84 87 93 97 84 72 63 69 84 90 90 96 70 59 55 63 Wind dir S N NW E SW SW SW W W W NW NW NW NW NW NW NW NW NW Wind spd 1 2 2 1 1 2 3 6 9 10 9 6 5 5 5 9 12 13 10 Clouds SC SC SC SC B1 B1 B1 B1 B1 SC FW FW FW CL FW CL FW FW CL PoP 12hr 0 5 20 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S Tstms S S Heat index 83 83 83 Max heat 83 83 84 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 50 71 49 72 49 75 53 78 Temp 55 51 68 65 53 50 70 66 53 50 72 69 55 54 75 72 Dewpt 51 49 52 51 49 48 51 51 48 46 52 53 49 49 57 58 PWind dir NW NW NW NW NW W SW SW Wind char LT GN LT LT LT LT LT LT Avg clouds FW CL FW FW FW FW FW FW FW FW FW FW FW SC SC SC PoP 12hr 0 0 0 0 5 0 5 5 $$ INZ002-222100- Valparaiso-Porter IN 41.45N 87.00W Elev. 770 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 63 81 57 72 Temp 78 80 74 67 65 63 64 74 77 79 73 67 63 60 58 67 70 71 67 Dewpt 62 63 63 62 62 60 61 67 68 66 63 60 58 55 55 56 54 53 53 RH 58 56 69 84 90 90 90 79 74 64 71 78 84 84 90 68 57 53 61 Wind dir W NW N SE SW SW SW W W W NW NW NW NW W NW NW NW NW Wind spd 3 4 3 1 2 3 4 8 9 9 5 5 5 5 5 10 11 11 8 Clouds SC SC SC SC SC B1 B1 SC B1 SC SC FW FW FW CL FW SC SC FW PoP 12hr 0 0 30 0 0 QPF 12hr 0 0 0.01 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C S Tstms S S Heat index 81 81 Max heat 81 81 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 53 68 52 68 50 73 52 77 Temp 58 56 67 64 55 54 66 62 53 53 70 66 55 54 73 70 Dewpt 51 51 49 49 49 50 50 48 48 48 50 51 49 49 53 55 PWind dir NW NW NW NW NW NW S SW Wind char LT GN LT GN LT LT LT LT Avg clouds FW FW FW SC FW FW FW FW FW FW FW FW FW FW FW SC PoP 12hr 20 10 20 5 0 5 0 5 Rain shwrs S S S S $$ ILZ005-222100- Woodstock-McHenry IL 42.31N 88.44W Elev. 950 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 64 79 53 71 Temp 76 78 74 68 65 65 65 73 77 75 69 61 58 54 54 65 69 69 65 Dewpt 63 63 64 63 62 62 63 68 65 62 59 56 53 52 51 56 55 54 53 RH 64 60 71 84 90 90 93 84 67 64 70 84 83 93 90 73 61 59 65 Wind dir SW SW SW SW SW SW W W W W NW NW W W W W W W NW Wind spd 4 4 4 2 4 5 6 8 10 12 9 6 5 5 5 10 13 13 10 Clouds SC B1 B1 B1 B1 B2 B1 SC SC FW FW FW CL CL FW CL SC FW SC PoP 12hr 0 20 10 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 49 68 48 70 48 73 53 76 Temp 55 50 65 62 53 49 67 63 52 49 70 66 55 54 73 69 Dewpt 49 47 50 51 48 47 50 50 48 46 52 54 50 50 58 58 PWind dir NW NW NW NW NW W SW SW Wind char LT GN LT LT LT LT LT LT Avg clouds FW CL FW SC FW FW FW SC FW FW FW FW FW FW SC SC PoP 12hr 5 5 0 0 5 5 5 5 $$ ILZ008-222100- Oregon-Ogle IL 42.01N 89.33W Elev. 697 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 65 80 52 72 Temp 77 80 77 68 66 65 65 74 78 77 70 61 57 54 53 65 70 70 66 Dewpt 64 63 64 63 62 62 63 67 64 61 58 55 53 51 51 55 54 54 52 RH 64 56 64 84 87 90 93 79 62 58 66 81 86 90 93 70 57 57 61 Wind dir SW W SW SW SW SW W W W NW NW NW W W W W W NW NW Wind spd 3 4 4 2 3 3 4 6 10 11 9 5 4 4 5 9 12 12 9 Clouds SC B1 B1 B1 B1 B2 B1 SC FW FW FW CL CL CL CL CL SC FW FW PoP 12hr 0 20 10 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Heat index 82 Max heat 82 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 49 69 47 71 47 74 52 77 Temp 54 50 66 63 52 49 68 64 51 48 71 68 55 53 73 70 Dewpt 49 47 50 50 48 46 50 50 47 45 52 54 49 49 57 58 PWind dir NW NW NW NW NW W SW SW Wind char LT GN LT LT LT LT LT LT Avg clouds FW CL FW FW FW FW FW FW FW FW FW FW FW SC SC SC PoP 12hr 0 0 0 0 0 0 5 5 $$ ILZ011-222100- Sycamore-DeKalb IL 41.98N 88.69W Elev. 863 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 65 81 52 72 Temp 77 79 75 68 66 65 65 74 78 77 69 61 57 54 53 65 69 70 65 Dewpt 64 64 64 63 62 62 63 68 66 61 58 56 53 51 51 55 54 53 52 RH 64 60 69 84 87 90 93 82 67 58 68 84 86 90 93 70 59 55 63 Wind dir SW SW SW SW SW SW W W W NW NW NW NW W W W W W NW Wind spd 3 3 4 2 4 4 6 8 10 12 9 5 5 5 5 10 13 13 10 Clouds SC B1 B1 B1 B1 B2 B1 SC SC FW FW CL CL CL CL CL SC FW FW PoP 12hr 0 20 10 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Heat index 80 Max heat 81 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 49 69 48 70 48 74 52 77 Temp 54 50 66 63 52 49 67 64 51 49 71 67 55 54 73 69 Dewpt 49 47 49 49 48 47 50 49 47 46 51 53 50 50 56 57 PWind dir NW NW NW NW NW W SW SW Wind char LT GN LT LT LT LT LT LT Avg clouds FW CL FW SC FW FW FW FW FW FW FW FW FW SC SC SC PoP 12hr 0 0 0 0 0 5 5 5 $$ ILZ010-222100- Dixon-Lee IL 41.85N 89.45W Elev. 697 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 64 81 52 73 Temp 77 81 77 68 66 65 65 74 79 78 70 61 57 54 54 65 70 71 66 Dewpt 64 64 65 64 62 62 63 69 65 62 59 56 54 52 52 56 55 55 54 RH 64 56 67 87 87 90 93 84 62 58 68 84 90 93 93 73 59 57 65 Wind dir SW W W SW SW SW W W NW NW NW NW NW W W NW NW NW NW Wind spd 3 4 3 2 3 4 4 5 8 10 8 5 4 4 4 8 10 11 8 Clouds SC B1 B1 B1 B1 B2 B1 SC FW FW FW CL CL CL CL CL FW SC FW PoP 12hr 0 20 10 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Heat index 82 Max heat 82 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 49 70 48 72 47 75 52 78 Temp 54 50 67 64 52 49 69 65 51 49 72 68 55 54 74 71 Dewpt 50 47 51 51 49 47 51 51 48 46 52 55 50 50 57 59 PWind dir NW NW NW NW NW W S SW Wind char LT LT LT LT LT LT LT LT Avg clouds FW CL FW FW FW FW FW FW FW FW FW FW FW SC SC SC PoP 12hr 0 0 0 0 0 0 5 5 $$ ILZ012-222100- Geneva-Kane IL 41.88N 88.31W Elev. 727 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 64 82 54 73 Temp 79 80 76 69 66 65 65 75 80 79 71 64 59 55 55 66 71 71 66 Dewpt 62 62 64 63 62 62 63 68 66 63 59 57 54 52 52 55 54 54 52 RH 56 54 66 81 87 90 93 79 62 58 66 78 83 90 90 68 55 55 61 Wind dir SW SW W SW SW SW W W W W NW NW NW W W W W W NW Wind spd 4 4 4 2 3 4 5 8 10 12 10 6 5 5 6 10 13 13 10 Clouds SC B1 B1 B1 B1 B1 B1 SC SC FW FW FW CL CL CL CL SC SC FW PoP 12hr 0 10 20 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S Tstms S S Heat index 82 82 Max heat 82 82 82 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 51 70 50 72 49 75 53 78 Temp 56 52 68 64 54 51 69 65 53 51 72 68 57 55 74 70 Dewpt 50 48 49 49 49 48 49 48 47 47 50 52 50 50 55 56 PWind dir NW NW NW NW NW W SW SW Wind char LT GN LT LT LT LT LT LT Avg clouds FW FW FW SC FW FW FW FW FW FW FW FW FW SC SC SC PoP 12hr 5 5 0 0 5 5 5 5 $$ ILZ020-222100- Yorkville-Kendall IL 41.64N 88.45W Elev. 618 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 64 82 54 73 Temp 78 81 76 69 66 65 65 75 80 80 72 64 59 55 54 67 71 72 67 Dewpt 63 63 64 63 62 62 62 68 68 64 60 57 55 53 52 56 55 54 53 RH 60 54 66 81 87 90 90 79 67 58 66 78 87 93 93 68 57 53 61 Wind dir SW SW W W SW SW W W W W NW NW NW W W NW W W NW Wind spd 3 3 3 1 3 4 5 6 9 11 10 6 5 5 5 10 12 13 10 Clouds SC SC SC B1 B1 B1 B1 B1 SC SC FW FW CL FW CL CL FW FW FW PoP 12hr 0 10 20 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S Tstms S S Heat index 82 82 81 Max heat 82 82 83 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 51 70 50 71 49 75 53 78 Temp 56 51 68 64 53 51 69 65 53 50 72 68 56 54 75 70 Dewpt 50 48 50 50 49 48 50 50 48 47 51 53 50 50 56 57 PWind dir NW NW NW NW NW W SW SW Wind char LT GN LT LT LT LT LT LT Avg clouds FW FW FW SC FW FW FW FW FW FW FW FW FW SC SC SC PoP 12hr 0 0 0 0 5 5 0 5 $$ ILZ013-222100- Wheaton-DuPage IL 41.86N 88.11W Elev. 752 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 66 83 56 73 Temp 79 80 76 70 68 66 66 75 81 80 73 67 62 59 57 67 72 72 67 Dewpt 62 62 63 63 63 62 63 67 66 62 59 57 55 53 53 54 53 53 52 RH 56 54 64 78 84 87 90 76 60 54 62 70 78 80 86 63 51 51 59 Wind dir SW SW SW SW SW SW W W W W NW NW NW W W W W W NW Wind spd 4 4 4 2 3 5 5 8 10 12 10 8 6 5 6 10 13 13 11 Clouds SC B1 B1 B1 B1 B1 B1 SC SC SC FW FW FW CL FW CL SC SC SC PoP 12hr 0 10 20 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S Tstms S S Heat index 81 82 81 Max heat 81 83 83 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 53 70 52 72 52 75 55 78 Temp 58 54 68 65 56 53 69 66 56 53 73 69 59 57 75 71 Dewpt 50 49 48 48 49 48 47 47 48 47 49 50 50 50 54 54 PWind dir NW NW NW NW NW W SW SW Wind char GN GN LT LT LT LT LT LT Avg clouds FW FW FW SC FW FW FW SC FW FW FW FW FW SC SC SC PoP 12hr 5 5 5 5 5 5 5 5 $$ ILZ019-222100- Ottawa-LaSalle IL 41.35N 88.84W Elev. 494 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 65 82 54 73 Temp 79 82 78 70 67 65 66 75 80 80 73 64 59 56 54 67 70 71 67 Dewpt 63 63 65 64 62 62 63 67 67 64 60 58 55 52 51 55 54 54 53 RH 58 53 64 81 84 90 90 76 65 58 64 81 87 86 90 65 57 55 61 Wind dir SW SW W W SW SW SW W W NW NW NW NW W W NW NW NW NW Wind spd 2 2 2 1 2 3 4 6 9 11 9 6 5 5 5 9 12 13 9 Clouds SC SC SC B1 B1 B1 B1 B1 SC SC FW CL CL CL CL CL FW FW FW PoP 12hr 0 5 20 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S Tstms S S Heat index 83 82 81 Max heat 83 82 82 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 50 69 49 71 49 74 53 78 Temp 56 51 67 65 53 50 68 66 53 50 71 68 56 54 74 71 Dewpt 50 47 49 50 49 47 49 50 48 45 50 53 49 49 55 57 PWind dir NW NW NW NW NW W SW SW Wind char LT GN LT LT LT LT LT LT Avg clouds FW CL FW FW FW FW FW FW FW FW FW FW FW SC SC SC PoP 12hr 0 0 0 0 5 0 5 5 $$ ILZ106-222100- Joliet-Will IL 41.53N 88.12W Elev. 655 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 65 83 55 73 Temp 79 81 76 69 66 65 65 74 80 80 73 66 61 57 55 67 72 72 67 Dewpt 63 63 64 64 63 62 63 69 69 65 61 58 56 54 53 57 55 55 54 RH 58 54 66 84 90 90 93 84 69 60 66 75 84 90 93 70 55 55 63 Wind dir SW W SW S SW SW SW W W W NW NW NW W W W W W NW Wind spd 3 3 3 1 3 4 5 6 9 11 9 6 5 5 5 9 12 13 10 Clouds SC SC SC SC B1 B1 B2 B1 SC SC FW FW FW CL CL CL FW FW FW PoP 12hr 0 5 20 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S Tstms S S Heat index 81 82 83 82 Max heat 81 82 83 84 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 52 70 50 72 50 75 53 78 Temp 57 53 68 65 55 52 70 65 54 52 73 68 57 55 75 71 Dewpt 52 50 50 50 50 49 50 50 49 48 51 53 51 51 56 57 PWind dir NW NW NW NW NW W SW SW Wind char LT GN LT LT LT LT LT LT Avg clouds FW FW FW SC FW FW FW SC FW FW FW FW FW SC SC SC PoP 12hr 0 5 0 0 0 5 0 5 $$ ILZ023-222100- Kankakee-Kankakee IL 41.12N 87.86W Elev. 630 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 64 82 53 73 Temp 78 81 78 68 66 64 65 74 79 80 73 65 60 55 54 66 71 72 67 Dewpt 62 62 63 63 62 61 62 67 68 66 63 59 56 54 53 56 55 55 53 RH 58 53 60 84 87 90 90 79 69 62 71 81 87 96 96 70 57 55 61 Wind dir E N NW SE SW SW W W W W NW NW NW NW W NW NW NW NW Wind spd 2 2 2 1 2 3 4 5 6 9 6 5 4 4 4 6 10 11 9 Clouds SC SC SC SC SC B1 B1 B1 B1 SC FW FW FW CL CL CL FW FW FW PoP 12hr 0 0 20 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S Tstms S S Heat index 82 83 Max heat 82 83 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 50 70 49 71 48 74 51 78 Temp 55 51 68 64 53 50 69 65 52 50 72 68 54 53 74 71 Dewpt 51 49 50 49 49 48 49 49 47 47 50 51 49 49 55 56 PWind dir NW NW NW NW NW NW SW SW Wind char LT GN LT LT LT LT LT LT Avg clouds FW FW FW FW FW FW FW FW SC FW FW FW FW SC SC SC PoP 12hr 0 0 0 0 5 5 0 5 $$ ILZ033-222100- Watseka-Iroquois IL 40.78N 87.73W Elev. 636 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 62 83 53 74 Temp 78 81 77 68 65 63 64 74 79 81 75 66 60 56 55 67 72 73 68 Dewpt 61 62 63 62 61 60 61 66 68 66 64 60 56 54 52 56 54 54 52 RH 56 53 62 81 87 90 90 76 69 60 69 81 87 93 90 68 53 51 57 Wind dir E NE N SE SW SW SW W W W NW NW NW NW NW NW NW NW NW Wind spd 3 3 2 1 2 2 3 4 5 6 5 4 4 4 4 6 9 10 6 Clouds SC SC SC SC SC SC SC B1 B2 SC FW FW CL FW FW CL FW FW FW PoP 12hr 0 0 20 0 0 QPF 12hr 0 0 0.02 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Tstms S S Heat index 82 83 Max heat 82 83 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 50 71 48 72 47 75 51 79 Temp 55 51 69 65 53 50 69 65 52 50 72 69 54 54 74 72 Dewpt 50 49 49 47 48 47 48 46 46 46 48 50 48 47 53 54 PWind dir NW NW NW NW N W SW SW Wind char LT LT LT LT LT LT LT LT Avg clouds FW CL FW FW FW FW FW FW FW FW FW FW FW SC SC SC PoP 12hr 0 0 0 0 5 5 0 5 $$ ILZ039-222100- Paxton-Ford IL 40.45N 88.10W Elev. 776 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 63 84 54 76 Temp 78 81 78 68 65 64 64 75 80 82 76 66 61 57 55 68 73 74 68 Dewpt 62 62 63 62 61 60 61 66 68 67 64 60 57 54 53 56 54 54 52 RH 58 53 60 81 87 87 90 74 67 61 66 81 87 90 93 65 51 50 57 Wind dir E NE N SE SW W W W W W NW NW NW NW NW NW NW NW NW Wind spd 3 3 3 1 1 2 3 5 8 9 8 5 5 5 5 9 10 12 9 Clouds SC SC SC SC SC SC SC B1 B1 B1 SC FW FW CL CL CL FW FW FW PoP 12hr 0 0 20 0 0 QPF 12hr 0 0 0.01 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Tstms S S Heat index 82 83 84 Max heat 82 83 85 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 51 72 49 74 49 77 52 80 Temp 56 52 70 66 53 50 71 66 53 50 73 69 56 54 75 72 Dewpt 51 49 49 48 48 48 48 47 47 46 48 50 49 48 53 54 PWind dir NW NW NW NW N NW SW SW Wind char LT GN LT LT LT LT LT LT Avg clouds FW FW FW FW FW FW FW FW SC FW FW FW SC SC SC SC PoP 12hr 0 0 0 0 5 5 5 5 $$ INZ001-222100- Crown Point-Lake IN 41.42N 87.34W Elev. 697 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 64 82 55 73 Temp 79 80 75 67 65 64 65 74 78 80 74 67 62 58 57 67 71 71 67 Dewpt 63 63 64 63 61 61 62 67 69 66 62 59 57 54 53 56 55 54 53 RH 58 56 69 87 87 90 90 79 74 62 66 75 84 86 86 68 57 55 61 Wind dir W N E SW SW SW SW W W W W NW NW W W W W W W Wind spd 2 4 2 1 3 3 4 6 8 9 6 5 5 5 5 8 10 11 9 Clouds SC SC SC SC SC B1 B1 SC B1 SC FW FW CL FW CL CL FW FW FW PoP 12hr 0 0 20 0 0 QPF 12hr 0 0 0.01 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S Tstms S S Heat index 81 82 Max heat 81 82 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 52 69 51 69 50 73 52 77 Temp 58 54 68 64 55 53 68 63 54 53 71 67 56 54 74 70 Dewpt 51 50 49 49 49 49 49 48 48 48 50 51 49 49 54 55 PWind dir W NW NW N NW NW SW SW Wind char LT GN LT LT LT LT LT LT Avg clouds FW FW FW FW FW FW FW FW FW FW FW FW FW SC FW SC PoP 12hr 10 5 10 5 0 5 0 5 $$ INZ010-222100- Kentland-Newton IN 40.77N 87.45W Elev. 673 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 62 82 54 73 Temp 77 80 77 67 64 62 63 74 78 80 74 65 60 56 54 67 71 72 67 Dewpt 61 62 63 62 60 60 61 66 68 67 64 60 56 54 52 56 55 54 53 RH 58 54 62 84 87 93 93 76 71 65 71 84 87 93 93 68 57 53 61 Wind dir E NE N N SW W SW W W W W NW NW NW W NW NW NW NW Wind spd 3 3 2 0 2 3 3 4 6 8 5 4 3 3 4 6 10 10 6 Clouds SC SC SC SC SC SC SC B1 B2 B1 SC FW CL FW FW CL FW FW FW PoP 12hr 0 0 20 5 0 QPF 12hr 0 0 0.02 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Tstms S S Heat index 81 82 Max heat 82 82 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 50 70 48 71 47 74 50 78 Temp 54 51 68 64 52 50 69 64 52 50 71 68 53 53 74 71 Dewpt 50 49 49 48 48 47 48 47 46 46 49 50 48 47 53 55 PWind dir NW NW NW NW N W SW SW Wind char LT LT LT LT LT LT LT LT Avg clouds FW CL FW FW FW FW FW FW FW FW FW FW FW SC SC SC PoP 12hr 0 0 0 0 5 5 5 5 $$ INZ011-222100- Rennsselaer-Jasper IN 40.94N 87.15W Elev. 661 ft 1015 AM CDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 62 81 54 73 Temp 78 81 76 67 64 63 63 74 78 80 74 66 60 56 55 66 71 72 66 Dewpt 61 61 62 62 61 60 61 67 69 67 65 60 56 54 53 57 55 55 53 RH 56 51 62 84 90 90 93 79 74 65 74 81 87 93 93 73 57 55 63 Wind dir E N NW N SW W SW W W W W NW NW NW W NW W NW NW Wind spd 2 3 2 0 2 3 3 5 6 8 5 4 3 4 4 6 10 10 8 Clouds SC SC SC SC SC SC SC B1 B2 B1 SC FW CL FW CL CL FW FW FW PoP 12hr 0 0 20 5 0 QPF 12hr 0 0 0.02 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Tstms S S Heat index 82 82 Max heat 82 82 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 50 69 48 70 47 74 50 77 Temp 55 51 67 64 52 50 68 63 52 50 71 67 53 52 74 71 Dewpt 50 49 50 49 48 47 49 47 46 46 49 50 48 47 53 55 PWind dir W NW NW NW N NW SW SW Wind char LT GN LT LT LT LT LT LT Avg clouds FW CL FW FW FW FW FW FW FW FW FW FW FW SC SC SC PoP 12hr 5 5 5 0 5 5 5 5 $$ INZ019-222100- Fowler-Benton IN 40.62N 87.32W Elev. 812 ft 1115 AM EDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 62 81 54 73 Temp 77 80 76 67 64 63 63 74 77 79 74 66 61 57 55 67 71 72 67 Dewpt 61 62 63 62 60 60 60 66 68 67 65 61 57 55 53 57 55 54 53 RH 58 54 64 84 87 90 90 76 74 67 74 84 87 93 93 70 57 53 61 Wind dir E NE N N W W W W W W W NW NW NW NW NW NW NW NW Wind spd 3 3 2 0 1 3 3 4 5 6 5 4 4 4 4 6 9 10 6 Clouds SC SC SC SC SC SC SC B1 B2 B1 SC FW CL FW CL CL FW FW FW PoP 12hr 0 0 20 5 0 QPF 12hr 0 0 0.01 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Tstms S S Heat index 81 81 Max heat 81 81 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 51 70 49 71 48 74 51 77 Temp 55 52 68 64 52 50 68 64 52 50 71 67 54 53 74 70 Dewpt 51 49 49 49 48 48 48 48 46 46 49 51 48 48 53 55 PWind dir NW NW NW NW N W SW SW Wind char LT LT LT LT LT LT LT LT Avg clouds FW CL FW FW FW FW FW FW FW FW FW FW FW SC SC SC PoP 12hr 0 0 0 0 5 5 5 5 $$