917
FOUS53 KLSX 120131
AFMLSX
AREA FORECAST MATRICES
NATIONAL WEATHER SERVICE SAINT LOUIS MO
831 PM CDT TUE AUG 11 2026
ILZ100-101-MOZ061-063-064-120900-
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
831 PM CDT TUE AUG 11 2026
DATE 08/11/26 WED 08/12/26 THU 08/13/26 FRI
CDT 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 78 97 76 96 75
TEMP 85 81 80 78 88 95 97 92 83 80 78 77 86 93 96 92 83 80 77 76
DEWPT 73 71 70 70 73 74 75 75 73 72 71 71 74 75 75 76 74 73 71 71
RH 67 72 72 76 61 51 50 58 72 77 79 82 68 56 51 60 74 79 82 85
WIND DIR S SW SW S SW SW SW S S S S SE SW SW SW SE SE S E E
WIND SPD 4 5 5 5 8 6 6 4 4 4 4 4 5 5 5 4 5 4 4 3
WIND GUST 14
CLOUDS SC SC FW SC SC SC SC SC SC FW SC SC SC SC SC SC SC SC B1 SC
POP 12HR 10 30 30 10 10
QPF 12HR 0 0.00-0.20 0.00-0.05 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS IS SC IS IS IS IS IS IS S S S S
TSTMS IS SC IS IS IS IS IS IS S S S S
HEAT INDEX 91 85 81 97106109104 89 84 95105108105 90 84
MAX HEAT 103 91 111 114 103 90 110 113 105 88
EXTREME HEAT W W W W W W W W
DATE 08/14 SAT 08/15/26 SUN 08/16/26 MON 08/17/26 TUE 08/18/26
CDT 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 94 75 98 77 97 74 89 70 89
TEMP 92 89 79 76 95 94 82 78 94 92 79 74 86 84 74 70 86 85
DEWPT 75 75 73 70 72 73 70 67 70 72 72 71 72 71 71 69 70 70
PWIND DIR SE SE S S W N N NE S
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC SC SC FW FW FW FW SC SC SC SC SC SC SC SC SC
POP 12HR 5 5 5 5 5 10 20 10 10
RAIN SHWRS S S
TSTMS S
MOZ049-050-120900-
OSAGE MO-CALLAWAY MO-
INCLUDING THE CITY OF FULTON
831 PM CDT TUE AUG 11 2026
DATE 08/11/26 WED 08/12/26 THU 08/13/26 FRI
CDT 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 77 96 76 96 74
TEMP 83 81 79 77 86 93 96 91 83 80 78 76 85 93 96 92 82 80 76 75
DEWPT 72 70 69 69 73 73 73 74 71 70 69 69 72 73 72 74 72 71 70 70
RH 70 69 72 76 65 52 48 58 67 72 74 79 65 52 46 56 72 74 82 84
WIND DIR S S SW SW SW SW SW S S SW SW S SW SW SW S SE S SE SE
WIND SPD 4 5 6 6 8 8 6 4 5 5 5 5 6 6 6 3 4 4 4 4
WIND GUST 17 18 19 18 17 16 17
CLOUDS SC FW FW SC SC SC SC SC FW FW FW FW SC SC SC SC SC SC SC SC
POP 12HR 10 10 20 5 10
QPF 12HR 0 0 0.01 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS IS IS IS IS S S
TSTMS IS IS IS IS S S
HEAT INDEX 89 84 92102106101 88 83 92102105102 87 82
MAX HEAT 100 86 106 111 101 87 106 110 102 86
EXTREME HEAT W W W W W W W W
DATE 08/14 SAT 08/15/26 SUN 08/16/26 MON 08/17/26 TUE 08/18/26
CDT 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 95 75 97 76 95 72 88 69 89
TEMP 92 90 79 75 94 92 80 77 93 89 77 73 85 83 74 70 86 85
DEWPT 72 74 71 67 70 71 68 66 69 71 71 71 71 70 70 69 70 70
PWIND DIR S SE SW SW W N NE E S
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC FW FW FW FW FW FW SC SC SC SC SC SC SC SC SC
POP 12HR 5 5 5 5 5 20 20 10 10
RAIN SHWRS S S S S
TSTMS S S S
MOZ042-120900-
AUDRAIN MO-
INCLUDING THE CITY OF MEXICO
831 PM CDT TUE AUG 11 2026
DATE 08/11/26 WED 08/12/26 THU 08/13/26 FRI
CDT 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 76 92 74 92 73
TEMP 82 80 78 77 83 90 92 89 81 79 76 74 83 89 92 90 80 77 75 73
DEWPT 73 69 68 68 73 74 75 75 72 70 69 69 73 74 74 75 73 71 70 70
RH 74 69 71 74 72 60 58 64 74 74 79 84 72 61 56 62 79 82 84 90
WIND DIR S SW SW SW S SW SW S S SW SW SE SW SW SW SE E E E E
WIND SPD 5 6 9 9 11 10 10 5 6 5 5 5 6 8 6 4 8 5 5 5
WIND GUST 17 19 20 21 18
CLOUDS SC FW FW SC SC SC SC SC FW FW FW SC SC SC SC SC SC SC B1 B1
POP 12HR 20 20 30 10 20
QPF 12HR 0 0 0.01-0.07 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS IS IS IS IS IS IS IS IS S S
TSTMS IS IS IS IS IS IS IS IS S S
HEAT INDEX 87 82 89 99103 99 85 89 98102101 83
MAX HEAT 97 84 101 106 97 83 101 106 98
HEAT Y Y Y Y Y Y Y Y
DATE 08/14 SAT 08/15/26 SUN 08/16/26 MON 08/17/26 TUE 08/18/26
CDT 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 91 74 94 75 91 70 85 67 86
TEMP 88 87 77 75 91 91 80 76 89 87 75 71 82 82 72 68 84 84
DEWPT 73 74 71 67 72 73 67 66 71 73 71 70 71 70 69 68 70 71
PWIND DIR SE SE SW SW W N NE E S
WIND CHAR LT LT GN LT GN LT LT LT LT
AVG CLOUDS B1 SC SC SC SC FW FW FW SC SC SC SC SC SC SC SC B1 SC
POP 12HR 5 5 5 10 10 20 20 10 10
RAIN SHWRS S S
TSTMS S
MOZ041-047-048-120900-
BOONE MO-MONITEAU MO-COLE MO-
INCLUDING THE CITIES OF COLUMBIA AND JEFFERSON CITY
831 PM CDT TUE AUG 11 2026
DATE 08/11/26 WED 08/12/26 THU 08/13/26 FRI
CDT 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 78 97 78 97 76
TEMP 85 82 80 78 86 93 97 92 85 82 80 78 86 94 97 92 84 80 78 76
DEWPT 72 70 69 69 73 73 73 74 71 70 69 69 72 73 73 74 72 71 70 69
RH 65 67 69 74 65 52 46 56 63 67 69 74 63 51 46 56 67 74 76 79
WIND DIR S S SW SW SW SW SW S S S SW S SW SW SW S SE SE SE SE
WIND SPD 5 4 5 6 8 8 6 4 5 4 5 4 5 6 6 3 4 4 4 4
WIND GUST 16 19 19 20 19 18 16 14 14 17 17 14
CLOUDS SC FW FW SC SC SC SC FW FW FW FW FW SC SC SC SC SC SC SC SC
POP 12HR 10 10 20 5 20
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS IS IS IS S S S S
TSTMS IS IS IS S S S S
HEAT INDEX 91 86 82 93102107102 90 86 82 92103107102 89 83
MAX HEAT 105 87 107 111 102 88 107 111 102 86
EXTREME HEAT W W W W W W W W
DATE 08/14 SAT 08/15/26 SUN 08/16/26 MON 08/17/26 TUE 08/18/26
CDT 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 96 76 98 77 95 73 89 71 91
TEMP 93 90 80 77 94 93 82 78 93 90 78 73 85 84 74 72 86 86
DEWPT 73 73 70 67 71 71 67 66 70 72 71 71 72 71 70 69 71 71
PWIND DIR S SE SW SW W N NE E S
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC FW FW SC FW FW FW FW SC SC SC SC SC SC SC B1 SC
POP 12HR 5 5 5 5 5 20 20 10 10
RAIN SHWRS S S S S
TSTMS S S S
ILZ095>097-MOZ018-019-026-027-034>036-120900-
ADAMS IL-BROWN IL-PIKE IL-KNOX MO-LEWIS MO-SHELBY MO-MARION MO-
MONROE MO-RALLS MO-PIKE MO-
INCLUDING THE CITIES OF QUINCY, MOUNT STERLING, PITTSFIELD,
HANNIBAL, AND BOWLING GREEN
831 PM CDT TUE AUG 11 2026
DATE 08/11/26 WED 08/12/26 THU 08/13/26 FRI
CDT 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 76 91 74 91 72
TEMP 82 79 78 76 83 89 91 89 80 77 75 74 81 88 91 87 78 76 74 72
DEWPT 74 71 69 70 73 75 75 76 74 72 71 71 75 76 76 76 74 73 72 71
RH 77 77 74 82 72 64 60 66 82 85 87 90 82 68 62 70 88 90 93 97
WIND DIR S S S S S SW SW S SE S SE SE S S S E E NE NE E
WIND SPD 3 4 5 6 8 8 6 4 4 3 4 4 5 5 5 5 6 5 4 5
WIND GUST 14 17 19 20 21 19 18 14 14 14 16 16 16 19 16 16 16
CLOUDS SC FW FW B1 B1 B2 SC SC SC SC SC SC B1 B1 B1 SC B1 B1 B2 B1
POP 12HR 20 30 40 40 40
QPF 12HR 0.00-0.07 0.00-0.30 0.02-0.63 0.00-0.28 0.00-0.32
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS SC SC IS IS IS IS IS SC C C C C C C C C S
TSTMS IS SC IS IS IS IS IS SC S S S C C C C C S
HEAT INDEX 88 81 89 98102100 83 86 98102 99 80
MAX HEAT 99 91 106 110 103 89 105 110 102 85
HEAT Y Y Y Y Y Y Y Y
DATE 08/14 SAT 08/15/26 SUN 08/16/26 MON 08/17/26 TUE 08/18/26
CDT 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 90 74 94 75 91 70 84 67 86
TEMP 87 85 76 74 91 91 79 76 89 86 74 71 81 81 71 68 83 83
DEWPT 75 76 72 70 73 74 70 68 73 74 72 70 72 71 68 67 71 71
PWIND DIR E SE S SW W N N E S
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B1 SC SC SC SC FW FW FW SC SC SC SC SC SC SC SC B1 SC
POP 12HR 10 20 5 20 10 30 10 10 10
RAIN SHWRS S S S S S S S S
TSTMS S S S S S S
ILZ069-074-120900-
CLINTON IL-WASHINGTON IL-
831 PM CDT TUE AUG 11 2026
DATE 08/11/26 WED 08/12/26 THU 08/13/26 FRI
CDT 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 76 95 76 95 75
TEMP 83 81 78 76 87 93 95 90 82 80 78 76 85 92 94 90 82 80 77 75
DEWPT 75 73 72 71 75 76 77 77 75 73 72 72 76 77 77 78 75 74 72 72
RH 77 77 82 85 68 58 56 66 79 79 82 87 75 62 58 68 79 82 85 90
WIND DIR SW SW SW SW W SW SW S S S S W SW SW SW SE S S SE E
WIND SPD 5 6 5 4 5 5 5 4 5 5 4 3 4 4 4 3 4 4 4 2
WIND GUST 17
CLOUDS FW SC FW FW FW SC SC SC SC FW SC B1 SC SC SC SC SC SC SC B1
POP 12HR 10 30 20 10 10
QPF 12HR 0 0.03-0.15 0.00-0.05 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS IS SC IS IS IS IS IS IS S S S S
TSTMS IS SC IS IS IS IS IS IS S S S S
HEAT INDEX 91 86 97107110103 89 84 94106110105 89 84
MAX HEAT 101 95 111 114 103 94 107 113 103 90
EXTREME HEAT W W W W W W W W
DATE 08/14 SAT 08/15/26 SUN 08/16/26 MON 08/17/26 TUE 08/18/26
CDT 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 94 74 96 76 97 74 89 69 89
TEMP 91 88 77 75 94 91 80 76 94 91 78 74 87 84 73 70 86 84
DEWPT 76 76 73 71 75 75 70 69 72 74 72 72 73 72 71 69 70 70
PWIND DIR SE SE S S W N N NE SE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC FW FW FW FW FW FW SC FW SC SC SC SC SC SC SC
POP 12HR 5 5 5 5 5 10 20 10 10
RAIN SHWRS S S
TSTMS S S
ILZ070-120900-
MARION IL-
INCLUDING THE CITIES OF CENTRALIA AND SALEM
831 PM CDT TUE AUG 11 2026
DATE 08/11/26 WED 08/12/26 THU 08/13/26 FRI
CDT 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 76 93 75 93 74
TEMP 83 80 77 76 86 92 93 87 80 79 77 75 84 90 93 89 81 79 76 74
DEWPT 74 72 71 71 74 75 75 75 74 73 72 72 74 75 76 76 74 73 72 72
RH 74 77 82 85 68 58 56 68 82 82 85 90 72 62 58 66 79 82 87 93
WIND DIR SW SW SW SW W SW SW S S S S W SW SW SW SE S S SE SE
WIND SPD 5 5 5 4 5 5 5 3 4 4 4 3 4 4 4 3 4 3 4 3
WIND GUST 17 16
CLOUDS FW SC FW FW FW SC B1 SC FW FW B1 B2 SC SC B1 B1 SC SC B1 B1
POP 12HR 10 40 30 30 20
QPF 12HR 0 0.04-0.18 0.05 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS IS SC IS SC SC IS IS IS C C S S S S
TSTMS IS SC IS SC SC IS IS IS S S S S S S
HEAT INDEX 89 83 94103106 97 84 91101105 99 86
MAX HEAT 102 86 106 109 96 84 105 109 98
HEAT Y Y Y Y Y Y Y Y
DATE 08/14 SAT 08/15/26 SUN 08/16/26 MON 08/17/26 TUE 08/18/26
CDT 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 92 73 95 75 95 73 88 68 87
TEMP 89 85 76 74 92 90 80 76 93 89 77 74 85 83 72 68 85 83
DEWPT 75 74 72 71 73 73 70 69 71 72 72 71 71 69 70 68 68 68
PWIND DIR E E S S W NW N NE E
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B1 SC SC FW FW FW FW FW FW SC FW SC SC SC SC SC SC SC
POP 12HR 10 5 5 0 5 10 20 10 10
RAIN SHWRS S S
TSTMS S S
MOZ074-084-085-099-120900-
SAINT FRANCOIS MO-IRON MO-MADISON MO-REYNOLDS MO-
INCLUDING THE CITY OF FARMINGTON
831 PM CDT TUE AUG 11 2026
DATE 08/11/26 WED 08/12/26 THU 08/13/26 FRI
CDT 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 75 96 75 96 75
TEMP 81 78 76 75 86 93 95 89 80 78 77 76 86 94 96 91 82 80 77 75
DEWPT 72 70 69 69 72 72 72 73 71 70 69 69 72 72 71 73 71 69 68 68
RH 74 76 79 82 63 51 48 59 74 76 76 79 63 49 45 56 69 69 74 79
WIND DIR S SW SW SW SW SW SW S S SW SW SW SW SW SW S S SW SW SW
WIND SPD 3 3 3 3 4 4 4 2 3 3 3 3 4 4 4 2 3 3 3 2
WIND GUST 16 16 17 16 16 14 16 12 14 14 16 14 16 16 16 14 14 14 12
CLOUDS SC FW FW FW FW SC FW SC FW FW FW SC SC FW FW SC SC FW SC SC
POP 12HR 5 10 10 5 0
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
HEAT INDEX 85 92102104 97 83 92102104 99 87 82
MAX HEAT 97 107 110 97 83 107 110 100 85
HEAT Y Y Y Y Y Y Y Y
DATE 08/14 SAT 08/15/26 SUN 08/16/26 MON 08/17/26 TUE 08/18/26
CDT 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 96 74 97 75 98 74 92 70 90
TEMP 94 91 79 75 95 93 80 76 96 93 78 75 90 85 74 71 88 85
DEWPT 71 72 69 67 67 68 66 65 66 67 67 68 70 72 70 69 70 70
PWIND DIR SW S SW SW W N N NE S
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC SC
POP 12HR 5 0 0 0 5 5 30 10 10
RAIN SHWRS C
TSTMS C
MOZ051-060-120900-
MONTGOMERY MO-WARREN MO-
831 PM CDT TUE AUG 11 2026
DATE 08/11/26 WED 08/12/26 THU 08/13/26 FRI
CDT 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 76 96 74 95 73
TEMP 83 79 77 76 85 92 96 91 81 79 76 74 84 92 95 92 81 79 75 73
DEWPT 73 70 69 69 73 74 74 76 73 71 70 70 74 75 74 77 74 72 71 70
RH 72 74 76 79 67 56 49 62 77 77 82 87 72 58 51 62 79 79 87 90
WIND DIR S S SW SW SW SW SW SE S SW SW SE SW SW SW SE SE S E E
WIND SPD 3 4 5 5 6 5 5 2 3 3 4 3 4 4 4 2 3 3 3 3
WIND GUST 17 18 19 18 17 14 13
CLOUDS SC SC FW SC SC SC SC SC SC FW FW SC SC SC SC SC SC SC SC SC
POP 12HR 20 20 30 5 10
QPF 12HR 0 0 0.03 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS IS IS IS IS IS IS IS IS
TSTMS IS IS IS IS IS IS IS IS
HEAT INDEX 89 80 92103107103 86 92103106105 87
MAX HEAT 100 86 107 113 101 85 109 111 105
EXTREME HEAT W W W W W W W W
DATE 08/14 SAT 08/15/26 SUN 08/16/26 MON 08/17/26 TUE 08/18/26
CDT 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 94 73 96 74 94 71 87 68 88
TEMP 91 89 78 74 94 93 80 76 92 90 76 72 84 82 72 68 85 85
DEWPT 74 75 72 68 72 73 69 67 71 73 72 71 72 71 70 68 71 71
PWIND DIR SE SE SW SW W N N E S
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC FW SC FW FW FW FW SC SC SC SC SC SC SC SC SC
POP 12HR 5 5 0 5 5 20 20 10 10
RAIN SHWRS S S S
TSTMS S S
MOZ052-120900-
LINCOLN MO-
831 PM CDT TUE AUG 11 2026
DATE 08/11/26 WED 08/12/26 THU 08/13/26 FRI
CDT 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 77 95 75 94 74
TEMP 84 80 78 77 86 93 95 91 82 79 77 75 85 92 94 92 82 79 76 74
DEWPT 73 71 69 70 73 74 74 75 74 72 71 71 75 75 75 77 75 73 71 71
RH 70 74 74 79 65 54 51 60 77 79 82 87 72 58 54 62 79 82 85 90
WIND DIR S SW SW S SW SW SW S S S S SE SW SW SW E SE SE E E
WIND SPD 2 3 4 4 6 5 5 2 3 3 3 3 3 4 4 2 4 3 3 2
WIND GUST 13 16 16 18 12
CLOUDS SC SC FW SC SC SC SC SC FW FW SC FW SC SC SC SC SC SC SC B1
POP 12HR 20 30 30 10 10
QPF 12HR 0 0.00-0.07 0.03 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS IS SC IS IS IS IS IS IS S S
TSTMS IS SC IS IS IS IS IS IS S S
HEAT INDEX 90 83 93104106103 88 80 93103107106 89
MAX HEAT 100 87 107 110 102 85 107 112 103 84
HEAT Y Y Y Y Y Y Y Y
DATE 08/14 SAT 08/15/26 SUN 08/16/26 MON 08/17/26 TUE 08/18/26
CDT 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 93 74 97 76 94 72 87 68 88
TEMP 91 88 78 75 94 94 80 77 93 91 77 73 84 83 73 69 85 85
DEWPT 75 75 73 69 72 73 70 67 71 72 73 71 72 70 70 68 70 70
PWIND DIR SE SE SW SW W N N E S
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B1 SC SC SC SC FW FW FW SC SC SC SC SC SC SC SC SC SC
POP 12HR 5 5 5 5 5 20 20 10 10
RAIN SHWRS S S
TSTMS S
ILZ058-059-098-099-120900-
GREENE IL-MACOUPIN IL-CALHOUN IL-JERSEY IL-
831 PM CDT TUE AUG 11 2026
DATE 08/11/26 WED 08/12/26 THU 08/13/26 FRI
CDT 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 75 93 73 92 72
TEMP 82 78 76 75 85 91 93 89 79 76 74 73 83 89 92 89 80 77 74 73
DEWPT 73 71 70 70 73 74 75 75 74 73 72 71 74 75 75 76 74 73 71 71
RH 74 79 82 84 67 58 56 64 85 90 93 93 74 64 58 66 82 87 90 93
WIND DIR SW S SW S SW SW W S SE SE S SE SW SW S E SE E NE NE
WIND SPD 3 4 5 5 8 6 6 4 3 4 3 3 4 5 5 5 5 5 4 4
CLOUDS SC SC FW SC SC B1 SC SC SC FW SC SC SC B1 B1 SC SC B1 B1 B1
POP 12HR 20 30 40 20 20
QPF 12HR 0 0.00-0.17 0.02-0.26 0 0.00-0.06
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS IS SC IS SC IS IS IS SC C C S S S S S S
TSTMS IS SC IS SC IS IS IS SC S S S S S S S S
HEAT INDEX 87 92101104 99 80 89100104100 82
MAX HEAT 100 87 107 109 101 85 106 109 103 85
HEAT Y Y Y Y Y Y Y Y
DATE 08/14 SAT 08/15/26 SUN 08/16/26 MON 08/17/26 TUE 08/18/26
CDT 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 91 72 95 74 94 70 86 66 87
TEMP 88 85 76 73 92 91 79 76 91 89 76 72 83 82 71 67 84 84
DEWPT 74 74 72 70 72 73 71 68 71 72 73 71 70 69 69 67 68 68
PWIND DIR E SE S S W N N E S
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B1 SC SC SC SC FW FW FW SC SC SC SC SC SC SC SC SC SC
POP 12HR 10 5 5 10 5 20 20 10 10
RAIN SHWRS S S
TSTMS S
ILZ060-064-065-120900-
MONTGOMERY IL-BOND IL-FAYETTE IL-
INCLUDING THE CITIES OF LITCHFIELD AND VANDALIA
831 PM CDT TUE AUG 11 2026
DATE 08/11/26 WED 08/12/26 THU 08/13/26 FRI
CDT 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 74 93 73 91 72
TEMP 81 78 76 74 85 91 92 88 79 76 75 73 82 88 91 88 79 77 74 73
DEWPT 74 71 70 70 74 76 76 76 74 73 72 71 75 76 77 77 75 73 72 71
RH 79 79 82 87 70 62 60 68 85 90 90 93 79 68 64 70 88 87 93 93
WIND DIR SW SW S SW SW SW SW S SE S S SW SW SW SW SE SE SE E NE
WIND SPD 4 5 5 4 6 5 5 3 3 3 3 3 4 4 5 3 4 4 4 3
CLOUDS FW SC FW FW SC SC B1 SC FW FW B1 B1 SC B1 B1 SC SC SC B1 B1
POP 12HR 20 40 40 30 30
QPF 12HR 0 0.01-0.17 0.04-0.26 0.00-0.05 0.00-0.06
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS IS SC IS SC SC IS IS SC C C S S C C C C
TSTMS IS SC IS SC SC IS IS SC S S S S C C C S
HEAT INDEX 87 93103105 99 81 89100104100 82
MAX HEAT 101 94 107 110 103 94 106 109 102 90
HEAT Y Y Y Y Y Y Y Y
DATE 08/14 SAT 08/15/26 SUN 08/16/26 MON 08/17/26 TUE 08/18/26
CDT 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 90 72 93 74 93 71 86 66 86
TEMP 88 84 75 73 91 89 78 75 91 88 76 72 84 82 71 67 84 83
DEWPT 75 75 72 70 75 75 71 69 72 74 72 71 71 70 69 67 69 69
PWIND DIR E E S S W N N NE SE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B1 SC SC SC SC FW FW FW FW SC SC SC SC SC SC SC SC SC
POP 12HR 10 5 5 5 5 10 20 10 10
RAIN SHWRS S S
TSTMS S S
ILZ079-120900-
RANDOLPH IL-
INCLUDING THE CITIES OF CHESTER AND SPARTA
831 PM CDT TUE AUG 11 2026
DATE 08/11/26 WED 08/12/26 THU 08/13/26 FRI
CDT 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 76 97 75 96 75
TEMP 83 80 78 76 88 95 97 92 83 80 78 75 86 93 96 92 84 81 77 75
DEWPT 74 72 71 70 75 76 76 77 74 72 71 71 75 76 76 77 74 72 70 70
RH 74 77 79 82 66 54 51 62 74 77 79 87 70 58 53 62 72 74 79 84
WIND DIR S S SW SW W SW S S S S S SW SW SW SW S S S SW SE
WIND SPD 5 6 5 4 5 5 5 4 6 5 5 4 4 4 4 3 5 5 4 3
CLOUDS FW SC FW FW FW SC SC SC SC FW FW SC SC SC SC SC SC SC SC SC
POP 12HR 10 30 10 10 5
QPF 12HR 0 0.04-0.22 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS SC IS IS
TSTMS SC IS IS
HEAT INDEX 90 83 98108111105 89 82 95106110106 91 86
MAX HEAT 99 85 111 114 102 86 109 113 103 86
EXTREME HEAT W W W W W W W W
DATE 08/14 SAT 08/15/26 SUN 08/16/26 MON 08/17/26 TUE 08/18/26
CDT 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 95 74 98 75 98 73 90 69 89
TEMP 93 90 79 75 95 94 81 77 96 93 79 74 88 85 74 70 86 85
DEWPT 75 76 72 69 72 73 69 67 70 72 71 70 73 73 71 69 71 71
PWIND DIR S SE S S W N N NE N
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC FW FW FW FW FW FW FW FW SC SC SC SC SC SC SC SC
POP 12HR 5 0 0 0 5 5 20 10 10
RAIN SHWRS S
TSTMS S
MOZ075-120900-
SAINTE GENEVIEVE MO-
831 PM CDT TUE AUG 11 2026
DATE 08/11/26 WED 08/12/26 THU 08/13/26 FRI
CDT 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 77 97 76 97 76
TEMP 83 80 78 77 86 95 97 91 82 80 78 76 86 94 97 92 84 81 78 76
DEWPT 73 71 69 69 73 74 74 75 73 71 70 69 73 73 73 75 73 71 69 68
RH 72 74 74 76 65 51 48 60 74 74 76 79 65 51 46 58 70 72 74 76
WIND DIR S SW SW SW W SW SW SE S SW SW SW SW SW SW SW S S SW SW
WIND SPD 5 8 8 5 6 5 5 4 6 6 6 5 5 5 5 3 6 6 5 4
WIND GUST 16 16
CLOUDS SC SC FW FW FW SC FW SC SC FW CL SC SC SC SC SC SC SC SC SC
POP 12HR 10 20 10 10 5
QPF 12HR 0 0.01-0.14 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS IS
TSTMS IS
HEAT INDEX 89 82 93105108101 87 82 93104107103 90 85
MAX HEAT 98 87 111 113 102 86 110 113 105 86
HEAT Y Y Y Y Y Y Y Y
DATE 08/14 SAT 08/15/26 SUN 08/16/26 MON 08/17/26 TUE 08/18/26
CDT 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 96 75 98 76 99 74 91 70 90
TEMP 93 91 80 75 96 94 81 78 96 93 79 75 88 85 75 70 87 86
DEWPT 73 74 70 67 69 71 67 65 67 70 69 69 72 72 71 68 70 71
PWIND DIR SW S SW SW W N N NE N
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC FW FW FW FW FW FW FW FW SC SC SC SC SC SC SC SC
POP 12HR 5 0 0 0 5 5 20 20 10
RAIN SHWRS S S
TSTMS S
MOZ059-062-120900-
GASCONADE MO-FRANKLIN MO-
INCLUDING THE CITIES OF WASHINGTON, UNION, AND SULLIVAN
831 PM CDT TUE AUG 11 2026
DATE 08/11/26 WED 08/12/26 THU 08/13/26 FRI
CDT 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 76 97 76 97 74
TEMP 83 80 78 77 87 94 97 92 82 80 77 76 87 94 97 93 83 80 76 75
DEWPT 72 69 68 69 73 74 73 74 72 70 69 69 73 74 73 75 72 71 69 69
RH 70 69 71 76 63 53 46 56 72 72 76 79 63 53 46 56 70 74 79 82
WIND DIR SW SW SW SW SW SW SW E S SW SW SW SW SW SW S S S S SE
WIND SPD 3 3 4 5 6 5 4 2 3 4 4 4 4 4 4 2 3 3 3 2
WIND GUST 13 16 17 18 14 13 14 16 14 17 14 14 13 13
CLOUDS SC SC FW FW SC SC SC SC FW FW FW SC SC SC SC SC SC SC SC SC
POP 12HR 10 20 20 5 10
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS IS IS IS IS
TSTMS IS IS IS IS
HEAT INDEX 88 82 94104108103 87 81 94104107104 88 83
MAX HEAT 99 85 110 113 101 85 109 111 103 84
EXTREME HEAT W W W W W W W W
DATE 08/14 SAT 08/15/26 SUN 08/16/26 MON 08/17/26 TUE 08/18/26
CDT 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 96 74 98 75 97 72 89 69 90
TEMP 93 91 79 75 95 94 80 76 94 91 78 73 86 84 74 70 86 85
DEWPT 73 74 70 67 70 72 67 66 69 72 70 70 73 71 70 69 71 71
PWIND DIR S SE SW SW W N N E S
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC FW FW FW FW FW FW FW SC SC SC SC SC SC SC SC
POP 12HR 5 0 0 5 5 20 20 10 10
RAIN SHWRS S S
TSTMS S
MOZ072-073-120900-
CRAWFORD MO-WASHINGTON MO-
831 PM CDT TUE AUG 11 2026
DATE 08/11/26 WED 08/12/26 THU 08/13/26 FRI
CDT 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 77 96 77 96 76
TEMP 82 79 78 77 88 94 96 90 82 80 78 77 87 94 96 91 83 80 78 76
DEWPT 71 68 68 68 73 73 72 73 71 69 68 68 72 72 71 73 71 69 67 67
RH 69 69 71 74 61 51 46 58 69 69 71 74 61 49 45 56 67 69 69 74
WIND DIR S SW SW SW SW SW SW S S SW SW SW SW SW SW SW S S SW SW
WIND SPD 3 3 4 4 6 5 5 3 3 4 4 4 5 5 5 2 3 3 3 3
WIND GUST 14 16 17 17 18 16 13 13 14 17 16 17 16 13 16 14 13
CLOUDS SC SC FW FW SC SC SC SC SC FW CL FW SC SC FW SC SC SC SC SC
POP 12HR 5 10 10 5 5
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
HEAT INDEX 86 81 95103105 98 86 81 95103105100 87 83
MAX HEAT 94 84 106 110 99 84 107 111 101 83
HEAT Y Y Y Y Y Y Y Y
DATE 08/14 SAT 08/15/26 SUN 08/16/26 MON 08/17/26 TUE 08/18/26
CDT 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 96 74 98 76 97 73 91 70 90
TEMP 94 90 79 75 95 93 80 77 95 91 78 74 88 84 74 70 88 85
DEWPT 72 72 69 66 68 69 65 64 67 68 68 69 71 71 70 68 70 70
PWIND DIR S S SW S W N N E S
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC FW FW FW FW FW FW FW SC SC SC SC SC SC SC SC
POP 12HR 5 5 0 0 5 10 20 10 10
RAIN SHWRS S
TSTMS S
ILZ102-MOZ065-120900-
MONROE IL-JEFFERSON MO-
831 PM CDT TUE AUG 11 2026
DATE 08/11/26 WED 08/12/26 THU 08/13/26 FRI
CDT 3HRLY 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07
UTC 3HRLY 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
MIN/MAX 77 98 76 97 75
TEMP 84 80 79 77 89 95 98 92 83 80 78 76 87 94 97 92 83 80 77 75
DEWPT 72 70 69 69 74 75 74 75 73 71 70 70 75 75 75 76 73 71 69 69
RH 67 72 72 76 61 53 47 58 72 74 76 82 68 54 50 60 72 74 76 82
WIND DIR S SW SW SW SW SW SW SE S SW SW SW SW SW SW S S S SW SE
WIND SPD 3 4 5 4 5 4 4 3 4 4 4 4 4 4 4 3 4 4 4 3
WIND GUST 14 14 16 14 14 16
CLOUDS FW SC FW FW SC SC SC SC SC SC FW SC SC SC SC SC SC SC SC SC
POP 12HR 10 20 20 10 10
QPF 12HR 0 0.00-0.16 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS IS IS IS IS S S
TSTMS IS IS IS IS S S
HEAT INDEX 89 83 80 98107110103 88 82 97107110105 89 83
MAX HEAT 98 86 113 114 102 85 110 114 103 85
EXTREME HEAT W W W W W W W W
DATE 08/14 SAT 08/15/26 SUN 08/16/26 MON 08/17/26 TUE 08/18/26
CDT 6HRLY 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
UTC 6HRLY 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
MAX/MIN 96 74 99 76 98 74 90 70 90
TEMP 93 90 79 75 96 94 81 77 96 93 78 74 88 85 74 70 87 85
DEWPT 75 75 71 68 71 72 67 66 70 71 70 70 74 72 71 68 72 71
PWIND DIR S SE SW SW W N N E S
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC SC FW FW FW FW FW FW SC SC SC SC SC SC SC SC
POP 12HR 5 0 0 0 5 10 20 10 10
RAIN SHWRS S S
TSTMS S
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