792
FOUS53 KLSX 120626
AFMLSX
AREA FORECAST MATRICES
NATIONAL WEATHER SERVICE SAINT LOUIS MO
126 AM CDT WED AUG 12 2026
ILZ100-101-MOZ061-063-064-130900-
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 AM CDT WED AUG 12 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 95 76 94 77
TEMP 79 78 86 91 94 91 83 80 78 77 83 90 94 87 84 82 79 77
DEWPT 71 71 75 76 77 77 74 73 72 71 75 74 74 74 74 73 72 71
RH 77 79 70 62 58 64 74 79 82 82 77 60 53 65 72 74 79 82
WIND DIR SW SW W SW SW SE SE SE S S S SW S S S S SW W
WIND SPD 5 4 6 5 5 4 5 4 4 4 5 5 6 5 5 5 4 3
CLOUDS SC SC SC SC SC SC SC SC B1 B1 SC SC SC SC SC FW SC SC
POP 12HR 0 20 40 20 5
QPF 12HR 0 0.00-0.14 0.00-0.66 0.00-0.06 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S S S C S
TSTMS S S S S S C S
HEAT INDEX 80 95104108104 89 84 91100105 96 92 87 80
MAX HEAT 88 90 109 113 103 91 103 111 102 90
EXTREME HEAT 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 97 77 99 77 97 74 88 69 87
TEMP 94 93 82 77 96 94 82 78 95 92 79 74 86 83 73 70 84 84
DEWPT 73 76 73 70 74 74 70 68 73 74 73 71 74 72 70 68 71 71
PWIND DIR SW SE SW S W N N NE SE
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 B1 SC SC SC SC SC
POP 12HR 5 0 0 0 5 20 30 10 10
RAIN SHWRS S C S
TSTMS S S S
MOZ049-050-130900-
OSAGE MO-CALLAWAY MO-
INCLUDING THE CITY OF FULTON
126 AM CDT WED AUG 12 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 76 97 76
TEMP 78 77 84 90 94 90 83 80 78 76 84 92 97 91 84 81 78 76
DEWPT 69 70 73 74 75 75 72 71 70 70 72 72 71 72 72 71 70 69
RH 74 79 70 60 54 62 70 74 76 82 67 52 43 54 67 72 76 79
WIND DIR SW S SW SW SW S SE SE SE S SW SW S S S S S S
WIND SPD 5 5 8 6 6 4 4 4 5 5 6 6 6 4 5 5 5 4
WIND GUST 17 17 17 14 17 17 16 16
CLOUDS SC SC SC SC FW SC SC SC SC SC B1 SC FW FW FW FW SC SC
POP 12HR 5 20 20 10 10
QPF 12HR 0.00-0.05 0.00-0.24 0.06-0.63 0.00-0.25 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S
TSTMS S S
HEAT INDEX 91100105101 88 83 89100106 99 89 84
MAX HEAT 86 85 105 111 102 87 105 109 99 88
EXTREME HEAT 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 97 76 98 75 95 72 86 68 87
TEMP 94 92 81 76 95 93 80 77 93 90 77 72 83 81 72 69 83 83
DEWPT 70 73 70 67 71 73 69 68 71 73 72 71 73 71 70 68 71 71
PWIND DIR S S SW SW W NE N E 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 B1 SC SC FW SC SC
POP 12HR 0 5 0 0 5 30 20 10 10
RAIN SHWRS C S S S
TSTMS S S S
MOZ042-130900-
AUDRAIN MO-
INCLUDING THE CITY OF MEXICO
126 AM CDT WED AUG 12 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 95 74
TEMP 78 76 82 87 90 89 81 79 76 75 82 90 95 89 82 79 76 74
DEWPT 69 69 73 76 76 77 73 71 70 70 72 73 72 74 73 71 70 70
RH 74 79 74 70 64 68 77 77 82 84 72 58 48 61 74 77 82 87
WIND DIR SW SW SW SW SW SW SE SE SE S SW SW S SE SE SE S SE
WIND SPD 8 8 9 9 9 4 5 5 5 5 8 9 8 4 6 5 5 4
WIND GUST 19 18 19
CLOUDS SC SC SC SC SC SC SC SC SC B1 B1 SC FW FW FW SC SC SC
POP 12HR 5 30 30 20 20
QPF 12HR 0 0.02-0.32 0.04-0.62 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S S S S
TSTMS S S S S S S
HEAT INDEX 87 98103101 85 86 98105 98 87
MAX HEAT 86 85 100 107 100 101 107 95
HEAT 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 75 94 75 91 70 84 66 84
TEMP 90 90 80 76 91 91 79 76 89 87 75 71 81 80 70 67 81 82
DEWPT 72 74 71 68 73 74 68 68 73 74 72 71 72 71 68 67 71 71
PWIND DIR S SE SW SW W N N E S
WIND CHAR LT LT GN LT GN LT LT LT LT
AVG CLOUDS SC FW FW FW FW FW CL FW FW SC SC SC B1 SC SC SC SC SC
POP 12HR 0 5 5 5 10 30 20 10 10
RAIN SHWRS C S S
TSTMS S S S
MOZ041-047-048-130900-
BOONE MO-MONITEAU MO-COLE MO-
INCLUDING THE CITIES OF COLUMBIA AND JEFFERSON CITY
126 AM CDT WED AUG 12 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 96 78 98 78
TEMP 79 78 84 91 94 91 84 81 79 78 86 93 98 93 85 82 80 78
DEWPT 70 70 73 75 75 75 72 71 70 70 72 72 71 72 72 71 69 69
RH 74 76 70 60 54 60 67 72 74 76 63 51 42 51 65 69 69 74
WIND DIR SW S SW SW SW S SE SE S S S SW SW S S S S S
WIND SPD 5 5 6 6 6 4 4 4 4 4 6 8 8 3 4 4 4 4
WIND GUST 18 18 18 17 17 14 17 16 14
CLOUDS SC SC SC SC SC SC FW SC SC SC B1 SC FW FW FW FW SC SC
POP 12HR 5 20 10 10 10
QPF 12HR 0.02 0.00-0.26 0.00-0.63 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S
TSTMS S S
HEAT INDEX 91101106102 90 85 81 92101107100 91 86 81
MAX HEAT 88 86 105 113 103 87 104 109 99 88
EXTREME HEAT 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 98 78 99 77 96 73 87 69 89
TEMP 94 93 82 78 95 93 81 78 93 90 78 73 83 82 73 70 84 85
DEWPT 69 72 70 67 71 72 69 68 72 73 72 72 73 71 70 69 71 71
PWIND DIR S S SW SW W NE N E S
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC FW FW FW FW FW FW FW FW FW SC SC B1 SC SC FW SC SC
POP 12HR 5 5 0 5 5 30 20 10 10
RAIN SHWRS C S S S S
TSTMS C S S
ILZ095>097-MOZ018-019-026-027-034>036-130900-
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
126 AM CDT WED AUG 12 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 73
TEMP 77 76 82 86 90 88 80 77 75 74 80 87 91 87 80 77 75 73
DEWPT 70 70 74 76 77 77 75 73 72 72 73 74 74 74 75 73 72 72
RH 79 82 77 72 66 70 85 87 90 93 79 65 58 65 85 87 90 97
WIND DIR SW SW SW SW SW SE SE SE SE SE S SW SW E E E E E
WIND SPD 5 5 8 6 6 3 4 4 4 4 5 6 6 4 6 4 4 4
WIND GUST 19 18 19 18 17 14 14 17 17 17 18 16 14 14
CLOUDS SC SC SC B1 SC SC SC SC SC B1 B1 B1 SC FW SC B1 B1 B1
POP 12HR 5 40 40 20 50
QPF 12HR 0.00-0.05 0.03-0.16 0.00-0.85 0.00-0.06 0.00-0.15
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C S S C S S C C C C
TSTMS S C S S C S S C C C C
HEAT INDEX 87 96103101 83 82 95100 95 83
MAX HEAT 88 90 103 110 103 90 101 106 99 88
HEAT 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 76 95 75 91 69 83 66 85
TEMP 89 89 79 76 92 91 79 76 89 86 74 70 81 80 70 68 82 82
DEWPT 74 76 73 70 75 75 70 69 74 75 72 70 72 71 68 67 71 71
PWIND DIR SE SE SW SW NW N NE E S
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B1 SC SC SC FW FW FW FW SC SC SC SC SC SC SC SC SC SC
POP 12HR 5 10 10 10 10 20 20 10 10
RAIN SHWRS S S S S
TSTMS S S S
ILZ069-074-130900-
CLINTON IL-WASHINGTON IL-
126 AM CDT WED AUG 12 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 93 77
TEMP 77 76 85 90 93 89 81 79 78 76 83 90 93 87 83 81 79 77
DEWPT 72 72 76 78 78 78 75 74 72 72 75 75 74 75 75 74 72 72
RH 85 87 75 68 62 70 82 85 82 87 77 62 54 68 77 79 79 85
WIND DIR SW SW SW SW SW E SE S S S SW SW S S S S SW SW
WIND SPD 5 3 4 4 4 3 5 4 4 3 4 5 5 4 6 5 4 2
CLOUDS SC FW SC SC SC B1 SC SC B1 B1 SC SC SC SC SC FW SC SC
POP 12HR 5 30 30 20 10
QPF 12HR 0 0.00-0.22 0.00-0.15 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S C S S C S
TSTMS S S C S S C S
HEAT INDEX 95105110103 87 80 91100103 95 90 87
MAX HEAT 91 92 108 114 103 92 105 106 100 92
EXTREME HEAT 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 97 76 98 76 97 73 89 68 87
TEMP 94 91 81 76 95 92 81 77 95 91 78 74 86 83 73 69 84 83
DEWPT 75 77 73 71 76 76 71 69 74 75 73 71 74 73 71 69 71 71
PWIND DIR SW SE SW S W N N NE SE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC FW FW FW FW FW FW CL FW FW FW SC B1 SC SC SC SC SC
POP 12HR 0 0 0 0 0 20 20 10 10
RAIN SHWRS S C S
TSTMS S S
ILZ070-130900-
MARION IL-
INCLUDING THE CITIES OF CENTRALIA AND SALEM
126 AM CDT WED AUG 12 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 92 77
TEMP 77 76 84 90 92 87 80 78 77 75 83 89 92 85 82 80 78 77
DEWPT 72 72 75 76 76 76 74 73 72 72 75 75 74 76 74 73 72 72
RH 85 87 74 64 60 70 82 85 85 90 77 64 56 75 77 79 82 85
WIND DIR SW SW SW SW W E SE S S S SW SW SW S S S SW SW
WIND SPD 5 4 5 5 4 3 4 3 3 3 4 4 5 3 5 4 4 3
WIND GUST 14
CLOUDS SC FW SC B1 SC B2 SC SC B1 B1 B1 SC B1 SC SC SC SC SC
POP 12HR 5 40 30 30 10
QPF 12HR 0 0.04-0.37 0.09-0.22 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C C S S C C S S
TSTMS S C C S S C C S S
HEAT INDEX 92102105 97 82 91100102 94 87 85
MAX HEAT 86 84 105 109 96 103 105 94 85
HEAT 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 95 76 96 76 96 73 87 68 86
TEMP 92 89 80 76 94 91 81 77 93 89 77 73 85 82 72 69 84 82
DEWPT 74 76 73 71 75 74 70 69 73 73 72 70 72 70 69 68 69 69
PWIND DIR NW SE SW S W N N NE E
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC FW FW FW FW FW CL FW FW FW SC B1 SC SC FW SC SC
POP 12HR 0 0 0 0 5 20 30 10 10
RAIN SHWRS S C S
TSTMS S S
MOZ074-084-085-099-130900-
SAINT FRANCOIS MO-IRON MO-MADISON MO-REYNOLDS MO-
INCLUDING THE CITY OF FARMINGTON
126 AM CDT WED AUG 12 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 95 75 97 76
TEMP 76 76 85 92 94 89 81 78 77 76 86 95 97 90 83 80 78 76
DEWPT 70 70 73 73 73 74 72 71 70 70 73 72 71 70 71 70 68 68
RH 82 82 67 54 51 61 74 79 79 82 65 48 43 52 67 72 71 76
WIND DIR SW SW SW SW SW S SE S S S SW SW S S S S SW SW
WIND SPD 3 3 3 4 4 2 3 3 3 3 4 5 5 2 3 3 3 2
WIND GUST 17 16 14 14 14 14 16 14 16 16 17 12 16 17 17 13
CLOUDS FW SC FW FW SC SC B1 FW B1 SC SC SC SC SC FW FW FW FW
POP 12HR 0 10 5 10 0
QPF 12HR 0 0.00-0.05 0.00-0.08 0.00-0.07 0
SNOW 12HR 00-00 00-00 00-00
HEAT INDEX 92102104 98 84 93104105 96 88 83
MAX HEAT 84 107 111 99 84 110 110 98 85
HEAT 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 98 75 98 76 99 74 91 69 89
TEMP 95 91 80 75 96 93 80 77 96 93 79 75 89 85 73 70 86 84
DEWPT 70 72 69 67 69 70 67 67 68 69 68 69 72 72 70 69 71 72
PWIND DIR SW S SW SW W NW N NE SE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW CL CL FW FW FW CL FW SC SC SC SC FW SC SC
POP 12HR 5 0 0 0 5 10 30 10 20
RAIN SHWRS S C S S
TSTMS S C S S
MOZ051-060-130900-
MONTGOMERY MO-WARREN MO-
126 AM CDT WED AUG 12 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 94 74 96 74
TEMP 77 76 83 89 93 90 81 79 76 75 81 90 96 89 83 80 77 75
DEWPT 70 70 75 76 76 77 74 72 71 70 72 73 73 74 73 72 71 70
RH 79 82 77 66 58 66 79 79 85 84 74 58 48 61 72 77 82 84
WIND DIR SW SW W SW SW S SE SE S S S SW S S S S SW S
WIND SPD 4 4 5 4 4 2 3 3 3 3 4 5 4 2 4 3 3 2
WIND GUST 16 17 16 14 16 16 14 13
CLOUDS SC SC SC SC SC SC SC SC B1 SC SC SC FW SC FW FW SC SC
POP 12HR 5 20 30 10 10
QPF 12HR 0 0.00-0.27 0.00-0.67 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S S S S
TSTMS S S S S S S
HEAT INDEX 90101106104 87 80 85 99106 98 89 83
MAX HEAT 85 85 107 113 103 85 102 110 98 85
EXTREME HEAT 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 97 74 95 70 86 66 86
TEMP 92 91 80 75 94 93 80 76 92 90 76 72 83 82 71 68 83 83
DEWPT 72 75 72 68 73 76 70 68 74 75 73 71 74 72 70 68 72 72
PWIND DIR S S SW SW W N N E S
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC FW FW FW FW FW FW FW FW FW SC SC B1 SC SC SC SC SC
POP 12HR 0 5 0 0 5 20 30 10 10
RAIN SHWRS S C S S
TSTMS S S S
MOZ052-130900-
LINCOLN MO-
126 AM CDT WED AUG 12 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 94 75 95 75
TEMP 78 77 84 90 93 91 82 80 77 76 82 90 95 89 83 81 77 75
DEWPT 70 70 75 76 76 77 75 73 72 71 73 73 74 75 75 73 72 71
RH 76 79 74 64 58 64 79 79 85 85 74 58 51 64 77 77 85 87
WIND DIR SW SW W SW SW S SE SE S S S SW S S SE S SW S
WIND SPD 4 4 5 5 4 2 3 3 3 2 4 4 4 2 3 3 3 2
WIND GUST 16 16 16 13
CLOUDS SC SC B1 SC SC SC SC B1 B1 SC SC SC FW FW FW SC SC SC
POP 12HR 0 20 30 20 20
QPF 12HR 0 0.03-0.12 0.00-0.34 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S C S S S
TSTMS S S S C S S S
HEAT INDEX 93102106105 89 82 87 99105 98 91 85
MAX HEAT 87 87 105 110 103 87 102 109 102 86
HEAT 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 76 97 76 95 71 86 67 86
TEMP 92 92 81 76 95 94 81 77 92 90 77 72 84 83 72 69 84 84
DEWPT 73 76 73 69 74 75 71 68 74 75 73 72 73 71 70 68 71 71
PWIND DIR S SE 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 CL FW FW SC SC SC SC SC SC SC SC SC
POP 12HR 0 5 0 5 5 20 30 10 5
RAIN SHWRS S C S
TSTMS S S S
ILZ058-059-098-099-130900-
GREENE IL-MACOUPIN IL-CALHOUN IL-JERSEY IL-
126 AM CDT WED AUG 12 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 92 73 90 73
TEMP 77 76 84 88 91 88 80 78 75 74 80 88 90 84 81 79 76 74
DEWPT 70 70 74 75 76 76 74 73 72 72 74 74 74 75 74 73 72 72
RH 79 82 72 66 62 68 82 85 90 93 82 63 60 74 79 82 87 93
WIND DIR SW SW SW SW SW E SE SE SE SE S SW S S SE SE SE SE
WIND SPD 5 4 6 6 5 4 4 4 4 4 5 5 6 4 5 4 4 3
CLOUDS SC SC SC SC SC SC SC SC B1 B1 B1 SC SC SC SC SC B1 B1
POP 12HR 0 30 40 20 20
QPF 12HR 0 0.03-0.29 0.00-0.15 0 0.01
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S S C S C C
TSTMS S S S S C S C C
HEAT INDEX 91 98103100 82 82 96100 92 86 80
MAX HEAT 87 87 103 110 103 86 101 107 99 87
HEAT 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 94 75 97 75 94 70 85 65 86
TEMP 91 90 79 75 94 92 80 76 91 89 75 72 83 81 70 67 83 83
DEWPT 74 76 73 70 74 75 71 69 73 74 73 70 71 70 69 67 69 69
PWIND DIR SE SE SW S W N N NE SE
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 5 5 5 5 20 20 10 10
RAIN SHWRS S S S
TSTMS S S
ILZ060-064-065-130900-
MONTGOMERY IL-BOND IL-FAYETTE IL-
INCLUDING THE CITIES OF LITCHFIELD AND VANDALIA
126 AM CDT WED AUG 12 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 92 73 89 74
TEMP 76 75 83 89 90 87 79 77 75 74 81 87 89 83 81 78 76 74
DEWPT 71 70 75 76 77 77 74 73 72 72 74 74 74 76 75 73 72 72
RH 85 84 77 66 66 72 85 87 90 93 79 65 61 80 82 85 87 93
WIND DIR SW SW SW SW SE E SE S SE SE S S S S SE S SE NW
WIND SPD 5 4 5 5 5 3 4 3 3 3 4 5 5 4 5 4 4 2
CLOUDS SC FW SC SC SC B1 SC SC B1 B1 B1 SC SC SC SC SC SC SC
POP 12HR 5 30 30 30 20
QPF 12HR 0 0.08-0.41 0.01-0.22 0.00-0.09 0.01
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C C S S C C S S S C C
TSTMS S C C S S C C S S S C C
HEAT INDEX 91100104 98 80 84 95 97 91 86
MAX HEAT 91 92 106 110 102 92 99 102 99 92
HEAT 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 75 95 75 94 71 85 66 85
TEMP 90 89 78 75 92 90 80 76 92 88 76 72 83 81 71 67 83 82
DEWPT 75 76 73 71 76 76 71 69 74 75 73 70 72 70 69 67 69 70
PWIND DIR E 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 FW FW SC SC SC SC SC FW SC
POP 12HR 5 0 5 5 5 30 20 10 10
RAIN SHWRS C S S
TSTMS S S
ILZ079-130900-
RANDOLPH IL-
INCLUDING THE CITIES OF CHESTER AND SPARTA
126 AM CDT WED AUG 12 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 75 95 77
TEMP 77 76 86 91 94 90 82 80 77 76 84 90 95 88 84 82 79 77
DEWPT 72 71 76 77 78 78 75 73 72 71 74 74 72 74 75 73 71 70
RH 85 85 72 64 60 68 79 79 85 85 72 60 48 63 74 74 77 79
WIND DIR SW SW SW SW SW S SE SE S S SW S S S S S SW SW
WIND SPD 5 4 4 4 4 4 6 5 5 4 4 5 5 4 8 6 5 3
CLOUDS SC SC SC SC SC B1 B1 SC B1 B1 B1 SC SC FW SC FW FW SC
POP 12HR 0 10 20 10 5
QPF 12HR 0 0.00-0.07 0.01-0.46 0.00-0.24 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S
TSTMS S S
HEAT INDEX 97105110104 89 83 91100104 97 93 87
MAX HEAT 86 84 110 114 103 87 105 107 100 87
EXTREME HEAT 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 98 76 100 76 99 73 89 68 88
TEMP 95 93 81 76 97 94 81 77 96 93 79 74 86 84 74 70 85 84
DEWPT 72 76 72 69 73 74 69 68 72 74 71 71 75 74 71 69 72 72
PWIND DIR SW S SW S W N N NE E
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 0 0 0 0 5 10 20 10 10
RAIN SHWRS S S
TSTMS S S
MOZ075-130900-
SAINTE GENEVIEVE MO-
126 AM CDT WED AUG 12 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 77
TEMP 78 77 86 92 95 90 82 80 78 77 85 93 94 88 85 82 79 77
DEWPT 71 70 75 75 75 76 73 71 70 70 73 73 72 73 73 71 69 69
RH 79 79 70 58 53 64 74 74 76 79 67 52 49 61 67 69 72 76
WIND DIR SW SW SW SW SW S SE S S S SW SW S S S S SW SW
WIND SPD 6 5 5 4 5 4 6 5 6 5 5 6 6 4 8 8 6 4
WIND GUST 17 16 17
CLOUDS SC SC SC FW SC SC B1 SC B1 B1 SC SC SC SC FW FW FW SC
POP 12HR 0 10 20 10 5
QPF 12HR 0 0.01-0.08 0.00-0.42 0.00-0.19 0
SNOW 12HR 00-00 00-00 00-00
HEAT INDEX 94104107102 88 83 92102103 95 92 87 81
MAX HEAT 84 85 110 113 103 87 106 106 99 88
HEAT 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 98 76 100 77 99 74 90 69 88
TEMP 95 92 81 77 97 94 82 78 96 93 79 75 87 84 74 70 85 84
DEWPT 71 74 70 67 71 72 68 67 70 72 70 70 74 73 70 69 72 72
PWIND DIR SW S SW SW W NW N NE NE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC FW FW FW CL CL CL FW FW FW FW SC SC SC SC SC SC SC
POP 12HR 5 0 0 0 5 10 20 10 10
RAIN SHWRS S S S
TSTMS S S S
MOZ059-062-130900-
GASCONADE MO-FRANKLIN MO-
INCLUDING THE CITIES OF WASHINGTON, UNION, AND SULLIVAN
126 AM CDT WED AUG 12 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 75 97 76
TEMP 78 77 86 91 95 91 82 80 78 76 83 92 97 91 84 82 78 76
DEWPT 69 70 74 75 75 76 73 71 70 70 72 73 72 73 72 70 69 69
RH 74 79 68 60 53 62 74 74 76 82 70 54 45 56 67 67 74 79
WIND DIR SW SW SW SW SW S SE S S SW SW SW SW S S S SW SW
WIND SPD 4 4 5 4 4 2 3 3 4 3 4 4 4 2 3 4 4 3
WIND GUST 16 16 16 14 14 14 16 14 16 14 16 16 13
CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC SC SC FW FW SC FW
POP 12HR 0 10 20 10 5
QPF 12HR 0 0.00-0.07 0.00-0.60 0.00-0.30 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S
TSTMS S
HEAT INDEX 94103107104 88 83 89101106 99 90 86
MAX HEAT 85 85 109 113 103 85 105 111 98 86
EXTREME HEAT 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 98 75 99 75 97 72 87 68 88
TEMP 95 93 81 76 96 94 80 77 95 91 78 73 84 82 73 69 84 84
DEWPT 71 74 70 67 71 74 69 67 72 74 72 71 74 73 70 68 72 72
PWIND DIR SW S SW SW W N N E SE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW FW FW FW FW FW FW FW SC B1 SC SC FW SC SC
POP 12HR 0 0 0 0 0 20 20 20 10
RAIN SHWRS S S S S
TSTMS S S S S
MOZ072-073-130900-
CRAWFORD MO-WASHINGTON MO-
126 AM CDT WED AUG 12 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 97 77
TEMP 78 77 87 92 95 90 82 80 78 76 86 94 97 90 84 82 79 77
DEWPT 69 69 74 74 73 74 71 70 68 69 72 72 71 70 71 69 67 68
RH 74 76 65 56 49 60 69 72 71 79 63 49 43 52 65 65 67 74
WIND DIR SW SW SW SW SW S SE S S S SW SW SW S S S SW SW
WIND SPD 4 4 5 4 5 3 3 3 4 4 5 5 5 3 4 4 4 3
WIND GUST 16 16 16 13 14 17 16 17 16 16 14 17 17 16
CLOUDS FW SC FW SC SC B1 B1 SC SC SC SC B1 SC SC FW FW FW FW
POP 12HR 0 10 10 10 0
QPF 12HR 0 0.00-0.14 0.00-0.13 0.00-0.52 0
SNOW 12HR 00-00 00-00 00-00
HEAT INDEX 94102105 99 86 82 92102105 96 89 85 80
MAX HEAT 85 84 107 111 101 85 106 107 96 85
HEAT 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 98 76 99 76 98 74 89 69 88
TEMP 95 92 81 76 96 93 80 77 96 92 79 74 87 83 73 70 86 83
DEWPT 70 72 68 66 69 70 66 66 69 71 69 69 74 73 70 68 72 72
PWIND DIR SW S SW SW W NW N NE S
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW CL CL FW FW FW FW FW SC B1 SC SC FW SC SC
POP 12HR 0 0 0 0 5 10 20 10 10
RAIN SHWRS S S S
TSTMS S S S
ILZ102-MOZ065-130900-
MONROE IL-JEFFERSON MO-
126 AM CDT WED AUG 12 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 77
TEMP 78 77 87 92 95 91 82 80 78 76 83 91 97 89 84 81 79 77
DEWPT 70 70 76 77 76 77 73 72 70 70 74 73 72 73 73 71 70 70
RH 76 79 70 62 54 64 74 77 76 82 74 56 45 59 70 72 74 79
WIND DIR SW SW W SW SW S SE S S S SW SW S S S S SW W
WIND SPD 5 4 4 4 4 3 4 4 4 3 4 4 4 3 5 5 4 3
WIND GUST 16 14 14 13 16 16
CLOUDS FW SC SC SC SC SC SC SC B1 B1 SC SC SC SC SC FW SC SC
POP 12HR 0 10 20 10 5
QPF 12HR 0 0.00-0.06 0.00-1.04 0.00-0.16 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S
TSTMS S
HEAT INDEX 97106110104 88 82 90100106 97 91 86
MAX HEAT 85 85 112 115 103 85 105 109 99 86
EXTREME HEAT 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 99 76 100 76 99 73 89 68 88
TEMP 96 93 81 76 97 94 81 78 96 93 78 74 86 83 73 70 85 84
DEWPT 71 75 71 68 73 74 68 67 72 74 71 71 75 73 70 68 73 72
PWIND DIR SW S SW SW W N N NE SE
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 B1 SC SC SC SC SC
POP 12HR 0 0 0 0 0 10 20 10 10
RAIN SHWRS S S S
TSTMS S S S
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page