Area Forecast Matrices
Issued by NWS St. Louis, MO
Issued by NWS St. Louis, MO
052 FOUS53 KLSX 131826 AFMLSX Area Forecast Matrices National Weather Service Saint Louis MO 126 PM CDT Thu Aug 13 2026 ILZ100-101-MOZ061-063-064-132100- Madison IL-Saint Clair IL-Saint Charles MO-Saint Louis MO- Saint Louis City MO- Including the cities of Alton, Edwardsville, Belleville, Cahokia, Saint Charles, and Saint Louis 126 PM CDT Thu Aug 13 2026 Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 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 96 76 97 77 98 Temp 93 91 83 81 79 77 86 93 96 93 84 82 79 77 88 95 97 93 Dewpt 77 77 75 73 72 72 75 76 76 77 75 73 71 70 73 73 73 75 RH 60 64 77 77 79 85 70 58 53 60 74 74 77 79 61 49 46 56 Wind dir S SE SE S S SE SE S S SE SE S S SW SW SW SW SW Wind spd 5 5 6 5 4 3 4 4 4 4 4 4 4 3 4 5 4 2 Clouds B1 FW FW FW SC SC SC FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 5 10 20 0 0 QPF 12hr 0 0.00-0.15 0.00-0.16 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Tstms S Heat index 109105 90 86 96106109107 92 87 80 95105108105 Max heat 112 115 105 93 110 115 106 93 109 113 Extreme Heat W W W W W W W W W W W W W W W W W W Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 77 96 72 87 69 89 72 93 Temp 81 77 93 93 79 74 85 83 74 70 86 86 76 74 91 89 Dewpt 70 69 74 75 75 72 74 72 71 69 72 71 69 68 72 72 PWind dir SW W N N NE SE SE S Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC SC SC B1 B1 SC SC SC FW FW FW SC SC SC PoP 12hr 5 10 40 30 10 5 10 10 Rain shwrs S C S S C Tstms S C C $$ MOZ049-050-132100- Osage MO-Callaway MO- Including the city of Fulton 126 PM CDT Thu Aug 13 2026 Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 97 76 98 76 97 Temp 95 91 83 81 78 76 85 93 96 92 83 81 77 76 85 93 96 92 Dewpt 73 74 72 70 70 70 73 73 72 74 72 70 68 67 70 71 70 73 RH 49 58 70 69 76 82 67 52 46 56 70 69 74 74 61 49 43 54 Wind dir S SE S S S S S S S S SE S SW SW SW SW SW SW Wind spd 6 4 5 5 5 4 5 5 5 3 4 4 4 4 6 8 6 2 Wind gust 17 16 17 14 16 14 14 18 19 Clouds SC FW FW FW SC SC SC FW FW FW FW FW FW SC SC SC FW FW PoP 12hr 0 5 10 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs Tstms Heat index 104101 88 85 91101105103 88 84 90100103101 Max heat 106 110 101 88 106 111 102 86 104 108 Extreme Heat W W W W W W W W W W W W W W W W W W Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 95 70 86 68 89 72 92 Temp 80 76 92 90 77 72 83 82 73 69 86 85 76 73 89 87 Dewpt 69 69 72 74 74 72 72 71 70 68 71 71 68 68 71 71 PWind dir SW W N N NE S SE S Wind char LT LT LT LT LT LT LT LT Avg clouds FW SC SC SC SC B1 SC SC SC SC FW FW FW SC SC SC PoP 12hr 10 10 30 20 10 5 10 10 Rain shwrs S C S S S Tstms S C S S S $$ MOZ042-132100- Audrain MO- Including the city of Mexico 126 PM CDT Thu Aug 13 2026 Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 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 93 74 93 74 93 Temp 91 90 81 79 76 75 83 90 92 91 82 79 76 75 83 90 93 90 Dewpt 75 76 74 71 70 70 73 74 74 76 73 71 69 68 71 72 72 74 RH 60 64 79 77 82 84 72 60 56 62 74 77 79 79 67 56 51 60 Wind dir S SE SE S S SE S S S SE SE S S SW SW SW SW SW Wind spd 9 5 6 6 5 4 8 8 5 4 5 5 5 6 9 11 9 3 Wind gust 16 16 19 Clouds SC FW FW FW SC SC FW FW CL FW FW FW SC SC B1 SC SC SC PoP 12hr 0 10 10 5 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S Tstms S S S Heat index 102102 86 80 90 99102103 87 81 88 97101100 Max heat 101 107 99 83 103 107 100 83 100 106 Heat Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 74 90 68 84 66 86 70 89 Temp 79 75 88 87 74 70 82 81 71 67 84 84 75 72 86 85 Dewpt 69 69 73 74 73 70 70 69 68 67 70 70 67 67 71 71 PWind dir SW NW N N NE S SE S Wind char LT LT LT LT LT LT LT GN Avg clouds SC SC B1 SC B1 B1 SC SC SC FW SC FW FW SC B1 SC PoP 12hr 10 20 40 10 5 0 20 10 Rain shwrs S S C S S Tstms S S C S S $$ MOZ041-047-048-132100- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 126 PM CDT Thu Aug 13 2026 Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 98 77 98 77 97 Temp 96 93 84 82 79 77 86 93 97 93 84 81 79 77 85 93 96 93 Dewpt 73 74 72 71 70 70 72 73 72 74 72 70 68 67 70 71 71 73 RH 48 54 67 69 74 79 63 52 45 54 67 69 69 71 61 49 45 52 Wind dir S S S S S S SW SW S S S S SW SW SW SW SW SW Wind spd 8 4 4 5 5 4 5 5 5 3 3 3 4 4 6 8 6 2 Wind gust 16 16 14 16 14 16 18 19 17 Clouds FW FW FW FW FW SC SC FW CL FW FW FW SC SC SC SC FW FW PoP 12hr 0 5 10 5 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs Tstms Heat index 106103 89 86 81 92102106104 90 85 90100104102 Max heat 106 113 103 88 107 111 105 86 104 109 Extreme Heat W W W W W W W W W W W W W W W W W W Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 77 95 72 87 69 90 73 93 Temp 81 77 92 90 77 73 83 82 73 70 86 86 77 75 89 88 Dewpt 69 69 73 74 74 72 72 71 70 69 71 71 68 68 71 72 PWind dir SW W N N NE S SE SW Wind char LT LT LT LT LT LT LT LT Avg clouds FW SC SC SC SC B1 SC SC SC FW SC FW FW SC B1 SC PoP 12hr 10 10 30 20 10 5 10 10 Rain shwrs S C S S S S Tstms S C S S S S $$ ILZ095>097-MOZ018-019-026-027-132100- Adams IL-Brown IL-Pike IL-Knox MO-Lewis MO-Shelby MO-Marion MO- Including the cities of Quincy, Mount Sterling, Pittsfield, and Hannibal 126 PM CDT Thu Aug 13 2026 Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 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 91 73 92 75 92 Temp 89 88 79 77 75 73 82 88 90 89 80 78 76 75 82 89 92 89 Dewpt 78 78 76 74 73 72 76 77 77 79 76 74 73 71 74 75 76 77 RH 70 72 91 90 94 97 82 70 66 73 88 88 90 87 77 64 60 68 Wind dir SE SE E E E E SE SE S SE E SE S S SW SW SW W Wind spd 6 5 6 5 4 4 5 5 5 4 6 5 4 4 6 8 8 3 Wind gust 18 18 17 14 18 17 17 17 19 20 18 Clouds SC SC SC SC SC B1 SC FW FW FW FW SC B1 B1 B1 B1 SC SC PoP 12hr 5 20 10 40 20 QPF 12hr 0 0.00-0.10 0 0.00-0.43 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C C S S Tstms S S S C C S S Heat index 104102 82 88100104104 86 89100104101 Max heat 105 111 103 106 112 105 86 105 109 Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 74 89 68 84 66 87 70 89 Temp 78 74 86 84 74 70 82 81 70 67 84 84 74 72 87 85 Dewpt 72 72 76 75 72 69 70 69 68 67 70 71 68 68 72 72 PWind dir SW NW N N NE S SE S Wind char LT LT LT LT LT LT LT LT Avg clouds SC B1 B1 B1 B1 SC SC SC SC FW SC SC FW SC B1 SC PoP 12hr 30 40 40 10 5 0 30 20 Rain shwrs C S C C C S Tstms S S C C S S $$ MOZ034>036-132100- Monroe MO-Ralls MO-Pike MO- Including the city of Bowling Green 126 PM CDT Thu Aug 13 2026 Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 93 74 94 75 93 Temp 91 90 81 79 76 75 83 90 92 91 82 80 77 76 83 90 93 91 Dewpt 76 77 75 73 71 71 74 75 75 77 75 73 70 69 72 73 73 75 RH 62 66 82 82 85 87 74 62 58 64 79 79 79 79 70 58 52 60 Wind dir S SE SE SE SE E S S S SE SE S S SW SW SW SW SW Wind spd 6 4 5 4 4 3 5 5 4 3 4 4 4 4 8 9 8 2 Wind gust 18 16 14 14 13 16 14 16 17 19 20 18 Clouds SC FW FW SC SC SC SC FW FW FW FW FW SC SC B1 SC SC SC PoP 12hr 0 20 10 20 10 QPF 12hr 0 0 0 0.00-0.17 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C C S S Tstms S S S S C S Heat index 104104 87 80 90100104105 89 83 89 98102101 Max heat 105 112 105 90 106 112 106 91 105 110 Heat Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 90 69 85 66 87 71 90 Temp 80 76 88 87 75 71 83 82 71 67 85 85 75 73 87 87 Dewpt 70 70 74 74 73 70 70 69 68 67 70 70 68 67 71 71 PWind dir SW NW N N NE S SE S Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC B1 B1 B1 B1 SC SC SC FW FW FW FW SC B1 SC PoP 12hr 20 30 40 10 5 0 20 10 Rain shwrs S S C C S S S Tstms S S C C S S S $$ ILZ069-074-132100- Clinton IL-Washington IL- 126 PM CDT Thu Aug 13 2026 Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 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 94 76 96 76 98 Temp 92 89 81 80 78 76 86 93 95 91 82 80 78 76 87 94 97 92 Dewpt 79 79 76 74 73 73 77 77 78 79 76 74 72 71 75 75 75 77 RH 66 73 85 82 85 90 75 60 58 68 82 82 82 85 68 54 50 62 Wind dir S SE SE S S SE SE S S SE SE S S S SW SW SW S Wind spd 3 4 5 5 5 3 3 3 2 2 3 3 3 3 3 3 3 2 Clouds B1 FW FW FW SC SC SC FW FW FW CL CL FW FW FW SC FW FW PoP 12hr 5 5 20 0 0 QPF 12hr 0 0 0.00-0.08 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Tstms S Heat index 110104 87 83 97107111107 89 85 96107110105 Max heat 108 116 103 93 110 116 106 93 109 114 Extreme Heat W W W W W W W W W W W W W W W W W W Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 76 96 72 87 68 88 71 92 Temp 80 76 94 92 79 74 85 83 73 69 85 84 75 72 90 87 Dewpt 70 69 75 77 75 73 75 74 72 69 72 72 70 69 73 73 PWind dir S W N N NE E SE S Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW SC SC B1 SC SC SC FW FW FW FW SC SC PoP 12hr 5 10 40 30 10 5 10 10 Rain shwrs C S S C Tstms C S S C $$ ILZ070-132100- Marion IL- Including the cities of Centralia and Salem 126 PM CDT Thu Aug 13 2026 Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 92 75 94 75 95 Temp 91 87 80 79 77 76 85 92 94 89 81 79 77 75 86 93 95 89 Dewpt 77 77 75 74 72 73 76 76 76 77 75 74 72 71 74 75 74 75 RH 64 72 85 85 85 90 75 60 56 68 82 85 85 87 68 56 51 64 Wind dir S SE SE S S E S S SW SE SE SE S S SW SW SW S Wind spd 3 3 4 4 4 3 3 3 3 2 3 2 3 2 4 4 4 2 Wind gust 14 Clouds B1 SC FW FW SC SC SC FW FW FW CL CL FW FW FW FW FW FW PoP 12hr 10 10 30 0 0 QPF 12hr 0 0 0.00-0.12 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C Tstms C Heat index 105 99 82 94105107102 87 80 94104107100 Max heat 105 110 97 85 107 110 100 84 106 110 Heat Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 76 95 72 86 67 86 69 91 Temp 80 76 92 91 79 73 84 82 73 68 84 83 74 71 88 85 Dewpt 70 69 74 75 73 72 74 71 70 68 71 70 69 68 72 72 PWind dir S W N N NE NE SE S Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW SC SC B1 SC SC SC FW FW FW FW SC B1 PoP 12hr 5 10 40 30 10 5 10 10 Rain shwrs C S C S Tstms C S C $$ MOZ074-084-085-099-132100- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 126 PM CDT Thu Aug 13 2026 Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 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 96 75 97 75 98 Temp 95 90 82 79 77 76 86 95 97 92 83 79 77 75 87 95 98 93 Dewpt 73 73 72 71 70 69 71 71 71 72 70 68 66 66 69 68 68 69 RH 49 58 72 77 79 79 61 46 43 52 65 69 69 74 55 42 38 46 Wind dir S S S S SW S SW S S S S S SW SW SW SW SW SW Wind spd 4 3 3 3 3 2 4 4 3 2 3 2 2 2 3 3 3 2 Wind gust 16 16 17 17 14 16 13 13 14 14 13 14 13 Clouds B1 FW CL CL FW FW SC FW FW FW CL FW FW FW FW FW FW FW PoP 12hr 0 0 5 0 0 QPF 12hr 0.00-0.07 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 105 99 86 81 92103105100 87 81 91100104 99 Max heat 109 112 98 84 110 114 100 84 107 110 Extreme Heat W W W W W W W W W W W W W W W W W W Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 76 98 73 89 69 90 70 93 Temp 80 76 95 93 79 74 87 83 73 69 87 85 74 72 90 88 Dewpt 66 66 69 71 70 71 74 74 71 69 72 72 69 68 70 71 PWind dir SW W NW N N S SE S Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW SC SC B1 SC SC SC SC FW FW FW SC SC PoP 12hr 0 10 30 40 10 10 5 10 Rain shwrs C S S C S Tstms C S S C S $$ MOZ051-060-132100- Montgomery MO-Warren MO- 126 PM CDT Thu Aug 13 2026 Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 95 74 96 74 96 Temp 93 91 82 80 77 75 84 92 95 92 82 80 76 75 84 92 95 92 Dewpt 76 77 74 71 70 71 75 75 75 77 74 72 69 68 72 73 73 76 RH 58 64 77 74 79 87 74 58 53 62 77 77 79 79 67 54 49 60 Wind dir S SE SE S S S S S S SE SE S SW SW SW SW SW SW Wind spd 4 3 4 4 4 3 4 3 3 2 3 3 3 3 4 5 4 1 Wind gust 16 14 13 16 18 16 Clouds SC FW FW FW SC SC FW FW FW FW FW FW FW SC SC SC FW FW PoP 12hr 0 10 20 5 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms Heat index 107104 87 83 91103107106 89 83 90101105104 Max heat 109 114 103 87 109 114 105 85 106 111 Extreme Heat W W W W W W W W W W W W W W W W W W Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 73 94 69 85 66 87 70 91 Temp 79 74 91 90 76 71 83 82 72 67 85 85 75 72 88 87 Dewpt 70 69 75 75 74 71 73 72 70 67 72 72 69 68 72 73 PWind dir SW W N N NE S SE S Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC SC SC B1 SC SC SC SC FW FW FW SC SC SC PoP 12hr 10 10 40 20 10 5 10 10 Rain shwrs S C S S S Tstms S C S $$ MOZ052-132100- Lincoln MO- 126 PM CDT Thu Aug 13 2026 Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 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 94 75 95 76 95 Temp 93 91 82 81 78 76 84 92 95 92 84 81 78 76 85 92 95 92 Dewpt 77 78 75 73 71 72 76 76 76 78 75 73 71 69 73 74 74 76 RH 60 66 79 77 79 87 77 60 54 64 74 77 79 79 67 56 51 60 Wind dir S SE SE S S E S S S SE SE S S SW SW SW SW SW Wind spd 4 3 4 3 3 2 3 4 3 2 3 3 3 3 4 5 4 1 Wind gust 13 14 16 14 Clouds SC SC FW FW SC SC SC FW FW FW FW FW FW SC FW SC FW FW PoP 12hr 0 10 20 5 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Heat index 107106 90 85 94104108108 92 86 93103106105 Max heat 106 112 105 89 109 113 108 90 106 111 Heat Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 75 93 70 86 67 88 71 91 Temp 80 76 91 90 77 72 84 83 72 68 86 86 75 73 89 88 Dewpt 71 70 76 76 74 72 73 71 70 68 71 72 69 68 73 72 PWind dir SW W N N NE S SE S Wind char LT LT LT LT LT LT LT LT Avg clouds FW SC SC SC B1 B1 SC SC FW SC FW FW FW SC SC B1 PoP 12hr 10 20 40 20 5 0 10 10 Rain shwrs S S C S S S Tstms S S C S $$ ILZ058-059-098-099-132100- Greene IL-Macoupin IL-Calhoun IL-Jersey IL- 126 PM CDT Thu Aug 13 2026 Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 92 73 94 74 94 Temp 90 88 80 79 76 74 84 90 92 90 81 79 77 75 85 91 94 90 Dewpt 77 77 76 74 72 72 75 76 77 78 76 74 72 71 73 74 75 75 RH 66 70 88 85 87 93 74 64 62 68 85 85 85 87 67 58 54 62 Wind dir S SE SE SE SE E S S S SE SE SE S S SW SW SW SW Wind spd 5 5 6 5 4 3 4 4 4 3 5 4 4 3 5 5 5 3 Clouds SC SC FW FW SC SC SC FW FW CL FW FW FW SC SC SC SC FW PoP 12hr 5 30 20 5 0 QPF 12hr 0 0.00-0.17 0.00-0.05 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S Tstms S S S Heat index 104101 84 80 92102106104 88 81 92102106101 Max heat 105 112 105 88 107 113 106 89 105 110 Heat Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 92 69 85 65 87 69 91 Temp 79 75 90 89 76 72 83 82 71 67 84 84 74 72 88 86 Dewpt 72 70 75 75 74 71 71 70 69 67 70 70 68 68 71 71 PWind dir S W N N NE S SE S Wind char LT LT LT LT LT LT LT LT Avg clouds FW SC SC SC SC B1 SC SC SC SC FW FW SC SC SC B1 PoP 12hr 10 20 50 20 5 5 10 10 Rain shwrs S S C S S S S Tstms S C S S S $$ ILZ060-064-065-132100- Montgomery IL-Bond IL-Fayette IL- Including the cities of Litchfield and Vandalia 126 PM CDT Thu Aug 13 2026 Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 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 91 73 93 74 94 Temp 90 87 79 78 76 74 84 90 92 89 80 78 76 75 85 91 94 89 Dewpt 78 78 75 74 72 72 76 77 77 78 76 74 72 72 75 76 76 77 RH 68 75 88 88 87 93 77 66 62 70 88 88 87 90 72 62 56 68 Wind dir S SE SE SE SE E SE S S SE SE SE SE S SW SW SW S Wind spd 4 4 5 4 4 3 4 4 3 2 3 4 4 3 4 4 5 2 Clouds B1 SC SC SC SC SC SC FW FW FW CL FW FW FW FW FW FW FW PoP 12hr 20 30 30 0 0 QPF 12hr 0.00-0.09 0.00-0.28 0.00-0.08 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C Tstms S S S C Heat index 104 99 81 92104107103 85 93103107102 Max heat 105 111 103 93 110 113 105 93 107 112 Heat Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 74 93 70 85 66 86 69 90 Temp 79 75 91 89 76 72 84 81 72 67 84 83 73 71 88 85 Dewpt 71 70 75 75 73 71 73 71 70 67 70 71 68 68 72 72 PWind dir S W N N NE S SE S Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC SC SC B1 SC SC FW SC FW FW FW FW SC B1 PoP 12hr 5 10 50 20 5 5 20 20 Rain shwrs S C S S S S Tstms S C S S $$ ILZ079-MOZ075-132100- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 126 PM CDT Thu Aug 13 2026 Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 96 75 98 75 99 Temp 95 90 83 80 78 76 86 95 97 92 84 81 77 76 87 96 99 94 Dewpt 77 77 74 72 71 71 75 75 75 77 74 71 69 68 72 72 72 74 RH 56 66 74 77 79 85 70 53 50 62 72 72 76 76 61 46 42 53 Wind dir S S S S SW S SE S S S S S SW SW SW SW SW S Wind spd 5 5 6 6 6 4 4 3 3 3 5 5 4 3 4 4 3 3 Wind gust 17 17 14 14 Clouds B1 FW CL FW SC FW SC FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 5 0 10 0 0 QPF 12hr 0 0 0.00-0.16 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs Tstms Heat index 110104 89 85 95107110106 90 85 94105108104 Max heat 110 116 103 87 111 115 106 87 109 112 Extreme Heat W W W W W W W W W W W W W W W W W W Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 76 98 72 88 68 90 70 93 Temp 81 76 95 94 79 74 86 84 74 69 87 86 75 72 91 89 Dewpt 68 67 72 74 73 72 75 74 72 69 72 72 70 68 72 72 PWind dir SW W NW N N S SE S Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW SC SC B1 SC SC SC FW FW FW FW SC SC PoP 12hr 5 10 30 30 10 5 5 10 Rain shwrs C S S C Tstms C S C $$ MOZ059-062-072-073-132100- Gasconade MO-Franklin MO-Crawford MO-Washington MO- Including the cities of Washington, Union, and Sullivan 126 PM CDT Thu Aug 13 2026 Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 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 97 76 98 76 98 Temp 96 91 82 81 78 76 87 94 97 92 83 80 78 76 87 95 98 93 Dewpt 74 74 71 70 69 69 73 73 73 74 71 69 66 66 70 70 69 72 RH 49 58 69 69 74 79 63 51 46 56 67 69 67 71 57 45 39 51 Wind dir S S S S SW S S S S S S S SW SW SW SW SW SW Wind spd 5 3 4 4 4 3 4 4 3 2 3 3 3 3 5 4 4 1 Wind gust 16 14 17 17 16 16 14 14 13 17 14 Clouds SC FW FW FW SC FW SC FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 5 5 10 0 0 QPF 12hr 0.00-0.05 0 0.00-0.08 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms Heat index 106101 87 84 94104107103 88 83 93102105101 Max heat 109 114 103 86 110 114 105 85 106 111 Extreme Heat W W W W W W W W W W W W W W W W W W Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 75 97 71 87 68 90 71 94 Temp 80 76 94 92 78 73 85 82 73 69 87 85 75 73 91 88 Dewpt 67 67 72 73 72 72 75 73 71 69 72 72 68 67 71 71 PWind dir SW W N N NE S SE S Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW SC SC B1 SC SC SC FW FW FW SC SC SC PoP 12hr 5 10 30 30 10 5 5 10 Rain shwrs C S S C Tstms C S C $$ ILZ102-MOZ065-132100- Monroe IL-Jefferson MO- 126 PM CDT Thu Aug 13 2026 Date Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 97 76 99 76 99 Temp 96 91 83 81 78 76 87 95 98 93 84 81 78 76 88 96 99 94 Dewpt 77 77 74 72 70 70 75 75 75 76 74 71 68 68 73 72 72 74 RH 55 64 74 74 76 82 68 53 48 58 72 72 71 76 61 46 42 53 Wind dir S SE S S SW S SE S S S S S SW SW SW W SW S Wind spd 4 4 4 4 4 3 3 3 3 3 3 3 3 3 4 4 3 2 Wind gust 14 16 17 13 13 13 Clouds B1 FW FW FW SC SC SC SC FW FW CL CL FW FW FW FW FW FW PoP 12hr 5 5 20 0 0 QPF 12hr 0.00-0.08 0 0.00-0.07 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Heat index 111105 89 84 97108111106 90 85 96106109104 Max heat 113 116 103 86 113 115 105 86 110 113 Extreme Heat W W W W W W W W W W W W W W W W W W Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 76 98 72 88 68 90 71 94 Temp 80 76 95 94 79 73 86 83 73 69 87 86 75 73 92 89 Dewpt 68 67 73 75 73 72 76 73 72 69 73 72 69 68 72 72 PWind dir SW W N N NE SE SE S Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW SC B1 B1 SC SC SC FW FW FW SC SC SC PoP 12hr 5 10 30 30 10 5 10 10 Rain shwrs C S C Tstms C S C $$