Point Forecast Matrices
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
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476 FOUS53 KLOT 221515 PFMLOT Point Forecast Matrices National Weather Service Chicago/Romeoville IL 1015 AM CDT Sat Aug 22 2026 ILZ104-222100- Chicago O`Hare International Airport-Cook IL 41.99N 87.91W Elev. 667 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 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 60 76 58 78 Temp 79 79 75 68 64 62 61 71 75 76 72 67 63 60 59 71 76 78 73 Dewpt 60 60 59 59 58 57 55 54 52 53 54 55 56 55 55 58 58 58 57 RH 52 52 58 73 81 84 81 55 45 45 53 65 78 84 87 63 54 50 57 Wind dir NW NW NW NW N NW NW NW NW NW N N NW NW NW N NW N NE Wind spd 12 13 10 6 6 6 6 10 12 11 8 3 3 3 3 3 4 4 3 Clouds SC SC SC FW FW FW CL FW FW SC SC FW FW FW FW SC SC SC SC PoP 12hr 20 10 0 0 0 QPF 12hr 0.01 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Heat index 80 Max heat 80 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 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 61 80 65 83 65 81 65 82 Temp 65 61 77 76 68 66 81 79 69 66 79 77 68 66 79 77 Dewpt 58 58 61 62 62 63 67 66 65 64 66 65 65 64 66 64 PWind dir SE S S SW W NW N NE Wind char LT LT LT GN LT LT LT LT Avg clouds SC FW SC SC SC B1 SC SC SC FW FW SC FW FW SC SC PoP 12hr 0 5 20 30 30 10 5 5 Rain shwrs S C C Tstms C S $$ ILZ003-222100- Greater Rockford Airport-Winnebago IL 42.20N 89.11W Elev. 745 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 54 76 51 76 Temp 78 79 73 65 60 56 56 70 75 76 71 63 59 54 53 69 75 76 72 Dewpt 62 59 59 56 54 52 51 55 54 54 55 54 53 52 52 56 55 55 57 RH 58 50 62 73 81 86 83 59 48 46 57 72 80 93 96 63 50 48 59 Wind dir NW NW NW NW N N NW N NW NW NW NW NW NW N NE NW NW N Wind spd 13 14 9 5 5 4 5 8 11 10 5 2 2 2 2 2 3 4 2 Clouds FW FW FW FW CL CL CL CL FW SC SC FW FW FW FW SC SC SC SC PoP 12hr 5 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 80 Max heat 80 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 56 78 62 82 61 80 60 81 Temp 59 57 77 74 64 63 79 77 65 62 78 77 63 61 79 77 Dewpt 56 57 60 62 62 63 66 65 64 62 63 64 62 61 64 65 PWind dir E S S SW W NW N E Wind char LT LT LT GN LT LT LT LT Avg clouds FW SC SC SC SC B1 SC SC FW FW FW SC FW FW FW SC PoP 12hr 0 5 20 30 10 10 5 10 Rain shwrs S C Tstms S C $$ ILZ104-222100- Chicago Midway Airport-Cook IL 41.78N 87.76W Elev. 612 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 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 62 76 60 77 Temp 78 79 75 69 66 64 63 71 76 76 72 67 64 62 61 71 75 77 73 Dewpt 60 60 59 59 59 58 56 53 52 52 53 55 55 55 55 57 56 56 56 RH 54 52 58 70 78 81 78 53 43 43 51 65 73 78 81 61 52 48 55 Wind dir NW NW NW NW NW NW NW NW NW NW N N W W W NW N NE E Wind spd 12 13 10 6 6 6 8 9 12 11 8 4 3 3 3 3 4 5 4 Clouds SC SC SC FW FW FW FW FW FW SC SC FW FW FW FW SC SC SC SC PoP 12hr 20 10 0 0 0 QPF 12hr 0.01 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 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 61 79 65 82 67 81 66 81 Temp 65 62 79 76 68 66 80 78 70 67 79 77 69 66 78 77 Dewpt 57 57 60 60 61 62 66 66 65 65 65 64 64 64 65 64 PWind dir SE S S SW W NW N NE Wind char LT LT LT GN LT LT LT LT Avg clouds SC FW SC SC B1 B1 B1 SC SC FW FW SC SC FW SC SC PoP 12hr 0 5 20 30 40 10 5 5 Rain shwrs S C C Tstms C S $$ ILZ021-222100- Morris-Grundy IL 41.43N 88.42W Elev. 569 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 58 76 56 78 Temp 78 79 74 67 62 59 59 71 76 76 71 66 61 57 57 70 76 78 74 Dewpt 64 64 62 60 57 55 55 58 57 57 58 57 57 55 55 60 60 59 60 RH 62 60 66 78 84 87 87 63 52 52 63 73 87 93 93 71 58 52 62 Wind dir NW NW NW NW NW NW NW N NW NW NW NW NW W NW NW NW NW N Wind spd 11 13 9 5 5 5 5 8 11 10 5 2 2 2 2 2 3 4 2 Clouds FW SC FW FW CL CL CL CL FW SC SC FW FW FW SC SC SC SC SC PoP 12hr 10 5 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 81 Max heat 81 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 58 79 63 82 64 81 63 82 Temp 63 59 78 75 66 65 80 78 68 65 80 78 66 65 80 78 Dewpt 59 58 64 65 63 63 70 68 66 64 68 67 65 63 68 67 PWind dir E S S SW W NW N E Wind char LT LT LT LT LT LT LT LT Avg clouds SC FW SC SC SC SC B1 SC SC FW FW FW FW FW SC SC PoP 12hr 0 5 20 30 30 5 5 10 Rain shwrs S C C Tstms C S $$ ILZ006-222100- Waukegan-Lake IL 42.42N 87.87W Elev. 745 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 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 78 58 74 55 74 Temp 77 78 72 66 62 60 60 69 73 74 70 63 60 57 56 69 74 74 70 Dewpt 60 61 60 60 58 55 54 55 53 54 55 56 55 54 55 58 56 57 58 RH 56 56 66 81 87 84 81 61 49 50 59 78 84 90 96 68 53 55 66 Wind dir NW NW NW NW NW NW NW NW NW NW N N NW NW NW N N E E Wind spd 12 13 10 8 8 9 9 11 12 11 8 4 4 4 4 5 5 5 4 Clouds SC SC SC FW FW FW CL FW SC SC SC FW FW FW FW SC SC SC SC PoP 12hr 20 20 0 0 0 QPF 12hr 0.02 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Tstms S S Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 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 58 78 62 81 62 78 62 77 Temp 63 59 75 74 65 64 79 76 66 63 76 74 64 64 75 73 Dewpt 57 58 60 62 62 63 66 67 65 63 65 65 64 64 65 65 PWind dir S S SW SW W N NE NE Wind char LT LT LT GN LT LT LT GN Avg clouds SC FW SC SC SC B1 SC SC SC FW FW SC FW SC SC SC PoP 12hr 0 5 20 40 20 10 5 5 Rain shwrs S C S Tstms S C S $$ ILZ021-222100- Pontiac-Livingston IL 40.92N 88.63W Elev. 648 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 58 77 56 78 Temp 78 79 75 67 62 59 59 71 76 77 72 65 61 58 57 71 77 78 74 Dewpt 65 66 64 60 57 55 55 59 57 57 59 58 56 55 56 62 61 61 62 RH 64 64 69 78 84 87 87 66 52 50 64 78 84 90 96 73 58 56 66 Wind dir NW NW NW NW NW NW NW NW NW NW NW NW W W SW W NW N NE Wind spd 11 12 8 5 4 4 4 6 10 10 5 2 1 2 1 2 2 3 2 Clouds FW FW FW FW FW CL CL CL FW SC FW FW FW FW SC SC SC SC SC PoP 12hr 10 5 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 59 80 63 83 64 83 63 83 Temp 63 59 80 77 65 65 80 78 67 65 80 77 66 65 80 78 Dewpt 58 58 65 66 63 63 71 70 65 65 70 69 64 64 69 69 PWind dir E SE S SW W NW N NE Wind char LT LT LT LT LT LT LT LT Avg clouds SC FW SC SC SC B1 B1 SC SC SC FW FW FW FW FW SC PoP 12hr 0 5 10 20 30 10 5 5 Rain shwrs S C Tstms S S $$ INZ002-222100- Valparaiso-Porter IN 41.45N 87.00W Elev. 770 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 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 75 61 73 53 74 Temp 75 75 71 66 63 61 63 71 73 73 67 60 57 55 55 67 73 74 68 Dewpt 62 62 62 61 60 59 60 58 56 56 56 57 56 55 55 59 58 58 59 RH 64 64 73 84 90 93 90 63 55 55 68 90 96100100 75 59 57 73 Wind dir NW NW NW NW NW NW NW NW NW N N N W SW SW W NW N N Wind spd 12 12 8 5 5 5 8 12 13 11 6 3 2 2 2 5 5 6 4 Clouds FW SC SC SC FW FW FW FW FW SC SC FW FW FW FW FW SC SC SC PoP 12hr 20 20 10 0 0 QPF 12hr 0.02 0.01 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Tstms S S Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 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 54 77 58 80 62 79 61 79 Temp 58 56 77 74 63 61 77 75 65 64 77 73 64 63 77 74 Dewpt 56 56 60 62 60 61 66 67 65 64 67 66 64 63 66 66 PWind dir E S S SW SW NW N NE Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC SC SC SC B1 SC SC SC SC FW FW FW SC SC PoP 12hr 0 5 10 30 40 10 5 5 Rain shwrs C C Tstms C S $$ ILZ005-222100- Woodstock-McHenry IL 42.31N 88.44W Elev. 950 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 55 74 52 76 Temp 77 78 72 65 60 57 57 69 73 74 69 62 58 54 54 69 74 76 71 Dewpt 63 61 60 57 55 53 52 56 54 55 56 55 54 52 53 60 59 59 60 RH 62 56 66 75 84 86 83 63 51 51 63 78 86 93 96 73 59 56 68 Wind dir NW NW NW NW N NW NW NW NW NW NW NW NW NW N NE NW NW N Wind spd 13 13 9 5 5 5 5 9 11 11 5 3 2 2 2 3 3 4 2 Clouds FW FW FW FW FW CL CL FW FW SC SC FW FW FW FW SC SC SC SC PoP 12hr 10 10 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 56 78 62 81 62 80 61 80 Temp 60 58 76 74 65 64 79 76 66 62 77 76 64 62 78 76 Dewpt 57 56 64 65 62 62 69 68 64 62 67 67 63 62 67 67 PWind dir E S SW SW W NW N E Wind char LT LT LT LT LT LT LT LT Avg clouds SC FW SC SC SC B1 SC SC SC FW FW SC FW FW FW SC PoP 12hr 0 5 20 40 20 10 5 10 Rain shwrs S C S Tstms S C S $$ ILZ008-222100- Oregon-Ogle IL 42.01N 89.33W Elev. 697 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 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 55 76 52 77 Temp 78 79 73 65 60 57 57 70 75 76 71 64 59 55 53 69 75 77 72 Dewpt 63 61 60 57 53 52 51 56 55 56 57 56 54 53 53 59 58 59 61 RH 60 54 64 75 78 83 80 61 50 50 61 75 83 93100 70 55 54 68 Wind dir NW NW NW NW N N N N NW NW NW NW NW NW N NE NW NW N Wind spd 13 13 9 5 5 4 4 6 10 10 5 3 2 2 2 1 3 3 2 Clouds FW FW FW FW CL CL CL CL SC SC SC FW FW FW SC SC SC SC SC PoP 12hr 5 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 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 78 61 81 61 80 60 81 Temp 59 57 77 75 65 63 79 77 66 62 78 77 65 61 78 77 Dewpt 57 57 63 66 63 63 69 69 64 62 66 67 63 61 66 68 PWind dir E S S W W NW NW E Wind char LT LT LT GN LT LT LT LT Avg clouds FW SC SC SC SC SC SC SC FW FW FW SC FW FW FW SC PoP 12hr 0 5 20 30 10 5 5 10 Rain shwrs S C Tstms S C $$ ILZ011-222100- Sycamore-DeKalb IL 41.98N 88.69W Elev. 863 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 55 75 53 77 Temp 77 78 73 65 60 57 57 70 74 75 70 64 60 56 54 70 75 77 72 Dewpt 63 61 60 58 55 53 52 56 55 55 56 56 54 53 53 59 58 58 59 RH 62 56 64 78 84 86 83 61 51 50 61 75 81 90 96 68 55 52 64 Wind dir NW NW NW NW NW NW NW NW NW NW NW N NW NW N N NW NW NE Wind spd 13 14 9 5 5 5 5 8 11 10 6 2 2 2 2 2 3 4 2 Clouds FW FW FW FW CL CL CL CL FW SC SC FW FW FW FW SC SC SC SC PoP 12hr 10 5 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 56 78 62 81 62 80 61 81 Temp 60 58 78 75 65 64 79 77 66 63 78 76 65 62 78 77 Dewpt 57 57 63 64 62 63 69 68 64 63 66 66 63 62 66 67 PWind dir SE S S SW W NW N E Wind char LT LT LT GN LT LT LT LT Avg clouds SC SC SC SC SC B1 SC SC SC FW FW FW FW FW FW SC PoP 12hr 0 5 20 30 20 10 5 10 Rain shwrs S C S Tstms S C S $$ ILZ010-222100- Dixon-Lee IL 41.85N 89.45W Elev. 697 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 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 56 76 53 77 Temp 78 79 74 65 60 57 57 71 75 76 71 64 60 56 54 70 75 77 73 Dewpt 64 61 61 58 54 52 51 56 55 56 58 57 55 54 54 58 58 58 60 RH 62 54 64 78 81 83 80 59 50 50 63 78 84 93100 66 55 52 64 Wind dir NW NW NW NW N N N N NW NW NW NW N NW NE NE NW NW N Wind spd 13 13 9 5 5 5 4 5 10 9 5 2 2 1 2 2 2 3 2 Clouds FW FW FW CL CL CL CL CL SC SC FW FW FW FW SC SC SC SC SC PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 80 Max heat 81 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 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 57 79 62 82 62 81 61 81 Temp 60 57 78 75 66 64 80 78 66 62 79 78 65 62 79 78 Dewpt 58 57 63 66 64 63 69 68 65 62 66 66 64 62 66 68 PWind dir E S S SW W NW N E Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC SC SC SC SC SC FW FW FW FW FW FW FW SC PoP 12hr 0 5 20 30 10 5 5 10 Rain shwrs S C Tstms S C $$ ILZ012-222100- Geneva-Kane IL 41.88N 88.31W Elev. 727 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 57 76 55 76 Temp 78 79 73 66 61 59 59 71 75 75 71 64 61 57 56 70 75 76 72 Dewpt 63 62 61 59 57 55 54 56 55 55 56 57 56 55 54 59 59 59 59 RH 60 56 66 78 87 87 83 59 50 50 59 78 84 93 93 68 58 56 64 Wind dir NW NW NW NW NW NW NW NW NW NW NW NW NW NW N N NW NW N Wind spd 12 14 10 6 5 5 6 9 11 11 6 3 2 2 2 3 4 5 3 Clouds FW SC FW FW FW CL CL CL FW SC SC FW FW FW FW SC SC SC SC PoP 12hr 10 10 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 58 78 63 81 64 80 62 81 Temp 62 59 77 74 66 64 79 77 67 64 79 77 66 63 79 77 Dewpt 59 58 63 64 63 63 69 68 65 64 67 66 64 63 67 66 PWind dir E S S SW W NW N NE Wind char LT LT LT GN LT LT LT LT Avg clouds SC SC SC SC SC B1 SC SC SC FW FW FW FW FW SC SC PoP 12hr 0 5 20 40 20 5 5 10 Rain shwrs S C S Tstms C S $$ ILZ020-222100- Yorkville-Kendall IL 41.64N 88.45W Elev. 618 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 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 57 76 54 76 Temp 78 79 74 67 62 59 59 70 75 75 71 64 60 57 56 69 75 76 72 Dewpt 64 63 62 59 56 55 54 57 56 56 57 56 55 54 54 59 59 59 60 RH 62 58 66 75 81 87 83 63 52 52 61 75 84 90 93 70 58 56 66 Wind dir NW NW NW NW NW NW NW N NW NW NW NW NW NW N N NW NW N Wind spd 11 13 9 5 5 5 5 8 11 11 5 2 2 2 2 2 3 4 2 Clouds FW FW FW FW CL CL CL CL FW SC SC FW FW FW FW SC SC SC SC PoP 12hr 10 5 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 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 57 78 62 81 63 80 62 81 Temp 61 58 77 75 65 64 79 77 67 64 79 77 66 63 78 77 Dewpt 58 57 64 64 63 63 69 68 65 64 68 67 64 62 67 67 PWind dir E S S SW W NW N E Wind char LT LT LT GN LT LT LT LT Avg clouds SC FW SC SC SC B1 SC SC SC FW FW FW FW FW FW SC PoP 12hr 0 5 20 30 20 5 5 10 Rain shwrs S C S Tstms C S $$ ILZ013-222100- Wheaton-DuPage IL 41.86N 88.11W Elev. 752 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 60 76 57 77 Temp 77 79 74 68 64 61 61 71 75 76 72 66 63 59 58 70 75 77 73 Dewpt 61 61 60 59 58 57 55 54 53 54 55 57 56 55 55 59 59 59 59 RH 58 54 62 73 81 87 81 55 46 46 55 73 78 87 90 68 58 54 62 Wind dir NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW N Wind spd 12 13 10 6 5 5 6 9 12 11 6 3 3 3 3 3 4 4 3 Clouds SC SC SC FW FW FW CL FW SC SC SC FW FW FW FW SC SC SC SC PoP 12hr 20 10 0 0 0 QPF 12hr 0.01 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 59 79 64 81 65 81 64 81 Temp 63 60 78 75 66 65 79 78 68 65 78 77 67 65 79 77 Dewpt 59 58 63 64 62 63 69 68 65 64 67 66 64 64 67 66 PWind dir SE S S SW W NW N NE Wind char LT LT LT GN LT LT LT LT Avg clouds SC FW SC SC SC B1 B1 SC SC FW FW SC FW FW SC SC PoP 12hr 0 5 20 30 30 5 5 10 Rain shwrs S C C Tstms C S $$ ILZ019-222100- Ottawa-LaSalle IL 41.35N 88.84W Elev. 494 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 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 58 77 56 77 Temp 78 79 74 67 62 59 59 71 76 76 72 66 61 58 57 70 76 77 73 Dewpt 64 64 62 60 57 54 54 58 56 57 58 57 56 54 54 58 58 58 59 RH 62 60 66 78 84 83 83 63 50 52 61 73 84 86 90 66 54 52 62 Wind dir NW NW NW NW NW NW NW NW NW NW NW NW NW W N N NW NW N Wind spd 12 13 9 5 5 5 5 6 10 10 5 2 2 2 1 2 3 3 2 Clouds FW FW FW FW CL CL CL CL FW SC FW FW FW FW SC SC SC SC SC PoP 12hr 10 5 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 81 Max heat 81 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 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 59 79 64 83 65 82 64 82 Temp 62 60 78 75 67 65 80 78 68 65 79 78 67 64 80 78 Dewpt 59 57 63 64 63 62 69 67 65 63 66 66 64 63 66 67 PWind dir E SE S SW W NW N E Wind char LT LT LT LT LT LT LT LT Avg clouds SC FW SC SC SC SC SC SC SC FW FW FW FW FW FW SC PoP 12hr 0 5 20 30 20 5 5 10 Rain shwrs S C S Tstms C S $$ ILZ106-222100- Joliet-Will IL 41.53N 88.12W Elev. 655 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 59 76 56 77 Temp 78 78 74 67 63 60 60 71 75 75 71 65 62 58 57 70 75 77 73 Dewpt 63 64 62 60 58 57 56 57 55 56 57 58 58 56 56 60 60 60 60 RH 60 62 66 78 84 90 87 61 50 52 61 78 87 93 96 71 60 56 64 Wind dir NW NW NW NW NW NW NW N NW NW NW NW W W NW W NW NW N Wind spd 12 13 9 5 5 5 6 9 11 11 6 2 2 2 2 3 4 4 3 Clouds SC SC FW FW FW FW CL FW FW SC SC FW FW FW FW SC SC SC SC PoP 12hr 20 5 0 0 0 QPF 12hr 0.01 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 58 78 63 81 64 81 63 81 Temp 62 59 78 75 66 65 80 78 68 65 79 77 67 64 79 77 Dewpt 59 58 64 65 63 63 70 69 66 65 68 67 65 64 68 67 PWind dir E S S SW W NW N E Wind char LT LT LT LT LT LT LT LT Avg clouds SC FW SC SC SC SC SC SC SC FW FW FW FW FW FW SC PoP 12hr 0 5 20 30 30 10 5 10 Rain shwrs S C C Tstms C S $$ ILZ023-222100- Kankakee-Kankakee IL 41.12N 87.86W Elev. 630 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 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 78 58 76 54 76 Temp 77 78 74 67 63 60 60 71 75 75 70 64 60 56 56 69 75 76 72 Dewpt 63 64 64 61 58 57 56 59 56 57 58 59 57 55 55 61 60 60 61 RH 62 62 71 81 84 90 87 66 52 54 66 84 90 96 96 76 60 58 68 Wind dir NW NW NW NW NW NW NW NW NW NW NW NW W W W W NW NW N Wind spd 10 12 8 5 5 4 5 8 10 10 5 1 1 2 1 2 3 4 2 Clouds FW SC FW FW FW FW FW CL FW SC SC FW FW FW SC FW SC SC SC PoP 12hr 20 10 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 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 79 61 82 63 82 62 82 Temp 60 58 79 74 64 63 79 77 67 64 79 76 66 64 79 76 Dewpt 58 56 63 64 62 62 69 69 66 64 68 68 65 64 68 67 PWind dir E SE S SW W NW N NE Wind char LT LT LT LT LT LT LT LT Avg clouds SC FW SC SC SC SC B1 SC SC SC FW FW FW FW SC SC PoP 12hr 0 5 10 30 40 10 5 10 Rain shwrs C C Tstms C S $$ ILZ033-222100- Watseka-Iroquois IL 40.78N 87.73W Elev. 636 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 58 76 54 76 Temp 77 78 74 67 62 59 59 71 75 75 70 63 59 56 55 69 75 76 72 Dewpt 63 64 64 61 58 56 56 60 56 57 58 57 55 54 54 60 59 58 60 RH 62 62 71 81 87 90 90 68 52 54 66 81 87 93 96 73 58 54 66 Wind dir NW NW NW NW NW NW NW NW NW NW NW N W SW SW W NW N N Wind spd 10 11 8 5 4 4 5 6 10 10 5 2 1 2 2 2 3 3 2 Clouds FW FW FW FW FW FW FW CL FW SC FW FW FW FW SC FW SC SC SC PoP 12hr 10 5 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 56 78 60 81 62 82 61 82 Temp 60 57 78 74 63 62 79 76 66 63 79 76 64 64 80 76 Dewpt 56 56 63 64 60 61 68 68 65 63 68 67 64 63 67 67 PWind dir E SE S SW W NW N NE Wind char LT LT LT LT LT LT LT LT Avg clouds SC FW FW SC SC B1 B1 SC SC SC FW FW FW FW FW SC PoP 12hr 0 5 10 20 30 20 5 10 Rain shwrs S C S Tstms S S S $$ ILZ039-222100- Paxton-Ford IL 40.45N 88.10W Elev. 776 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 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 78 58 77 56 78 Temp 77 78 74 67 63 60 60 72 76 77 71 64 61 57 57 71 76 78 73 Dewpt 64 65 65 62 58 56 56 61 57 57 58 56 55 54 55 60 58 59 59 RH 64 64 74 84 84 87 87 68 52 50 63 75 81 90 93 68 54 52 62 Wind dir NW NW NW NW NW NW NW NW NW NW NW N NW SW SW SW W W NE Wind spd 11 12 9 6 5 5 5 8 10 11 6 2 2 2 2 3 3 4 2 Clouds FW FW FW FW CL FW CL CL FW SC FW FW FW FW FW FW SC B1 SC PoP 12hr 10 5 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 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 58 79 61 82 63 82 62 83 Temp 62 58 79 76 64 63 80 77 66 65 80 77 65 64 80 78 Dewpt 57 57 63 64 61 61 69 68 65 64 68 67 64 63 67 67 PWind dir E SE S SW W NW N NE Wind char LT LT LT LT LT LT LT LT Avg clouds SC FW FW SC SC SC B1 SC SC SC FW FW FW FW FW SC PoP 12hr 0 5 10 20 20 10 5 10 Rain shwrs S S Tstms S S $$ INZ001-222100- Crown Point-Lake IN 41.42N 87.34W Elev. 697 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 77 60 74 54 76 Temp 77 77 73 66 63 61 61 71 74 74 69 62 59 56 55 68 74 75 69 Dewpt 62 63 63 61 59 58 58 57 55 57 57 57 56 55 55 60 59 60 60 RH 60 62 71 84 87 90 90 61 51 55 66 84 90 96100 76 59 60 73 Wind dir N NW NW NW NW NW NW NW NW N N NE SW SW SW W NW N NE Wind spd 11 12 8 5 4 5 6 10 11 10 5 3 2 3 2 4 4 5 3 Clouds SC SC SC FW FW FW FW FW FW SC SC FW FW FW FW FW SC SC SC PoP 12hr 20 10 5 0 0 QPF 12hr 0.03 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 55 77 60 81 62 80 62 80 Temp 59 57 77 74 64 62 78 76 66 64 78 75 65 64 78 74 Dewpt 57 56 62 63 61 61 68 68 66 64 68 67 64 64 67 66 PWind dir E S S SW SW NW N NE Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC SC SC SC B1 SC SC SC FW SC FW FW FW SC PoP 12hr 0 5 10 30 40 10 5 5 Rain shwrs C C Tstms C S $$ INZ010-222100- Kentland-Newton IN 40.77N 87.45W Elev. 673 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 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 78 58 75 53 76 Temp 77 78 73 66 61 59 59 71 75 75 69 62 58 55 54 68 74 76 71 Dewpt 63 63 63 61 58 56 56 60 56 56 56 56 55 53 54 59 57 57 58 RH 62 60 71 84 90 90 90 68 52 52 63 81 90 93100 73 55 52 63 Wind dir NW NW NW NW NW W NW NW NW NW NW N SW SW SW W NW NW N Wind spd 11 11 8 5 3 4 4 8 10 10 5 2 2 2 2 3 4 4 2 Clouds FW SC FW FW FW FW FW CL FW SC FW FW FW FW SC SC SC SC SC PoP 12hr 20 10 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 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 78 59 81 62 81 61 82 Temp 58 56 78 74 63 62 79 76 66 64 80 76 64 63 79 76 Dewpt 56 55 61 62 60 60 67 67 65 63 67 65 63 63 66 65 PWind dir E SE S SW SW NW N NE Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC FW SC SC SC B1 SC SC SC FW FW FW FW FW SC PoP 12hr 0 5 10 20 30 20 5 10 Rain shwrs S C S Tstms S S S $$ INZ011-222100- Rennsselaer-Jasper IN 40.94N 87.15W Elev. 661 ft 1015 AM CDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 77 58 75 52 76 Temp 77 77 72 66 62 59 60 71 75 74 68 62 57 54 54 68 74 76 71 Dewpt 62 63 63 61 59 57 57 60 56 56 57 56 55 53 54 59 58 57 58 RH 60 62 73 84 90 93 90 68 52 53 68 81 93 96100 73 57 52 63 Wind dir NW NW NW NW NW W NW NW NW NW N N SW SW SW W W NW N Wind spd 11 12 8 4 3 4 5 9 11 11 5 2 2 2 2 4 5 5 2 Clouds FW SC SC FW FW FW FW FW FW SC SC FW FW FW FW SC SC SC SC PoP 12hr 20 10 0 0 0 QPF 12hr 0.01 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 54 77 59 80 62 80 60 81 Temp 57 55 77 73 63 61 79 76 66 63 79 75 63 63 79 76 Dewpt 56 55 61 62 59 60 67 67 65 63 67 66 63 63 67 66 PWind dir E SE S SW SW NW N NE Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC SC SC B1 B1 SC SC SC FW SC FW FW FW SC PoP 12hr 0 5 10 30 30 20 5 10 Rain shwrs C C S S Tstms S S S $$ INZ019-222100- Fowler-Benton IN 40.62N 87.32W Elev. 812 ft 1115 AM EDT Sat Aug 22 2026 Date Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 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 77 58 75 54 75 Temp 76 77 72 66 62 59 60 70 74 74 68 62 59 56 56 68 74 75 71 Dewpt 63 64 64 62 58 57 57 61 56 56 57 56 55 54 55 60 59 59 59 RH 64 64 76 87 87 93 90 73 53 53 68 81 87 93 96 76 59 58 66 Wind dir NW NW NW NW NW NW NW NW NW NW NW N SW SW SW W W NW N Wind spd 11 11 8 5 5 5 5 8 10 10 5 2 1 2 2 3 4 4 2 Clouds FW FW FW FW FW FW FW CL FW SC SC FW FW SC FW SC SC SC SC PoP 12hr 10 10 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 Fri 08/28/26 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 56 77 60 80 63 80 62 81 Temp 60 57 77 73 63 62 78 75 66 64 79 75 65 63 78 76 Dewpt 56 56 62 62 59 61 67 67 65 64 68 66 64 63 67 66 PWind dir E SE S SW SW NW N NE Wind char LT LT LT LT LT LT LT LT Avg clouds SC FW FW SC SC SC SC B1 SC SC FW SC FW FW FW SC PoP 12hr 0 5 5 20 20 20 5 10 Rain shwrs S S S S Tstms S S S $$