785
FOUS53 KLSX 101826
AFMLSX
AREA FORECAST MATRICES
NATIONAL WEATHER SERVICE SAINT LOUIS MO
126 PM CDT MON AUG 10 2026
ILZ100-101-MOZ061-063-064-102100-
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 MON AUG 10 2026
DATE MON 08/10/26 TUE 08/11/26 WED 08/12/26
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 78 97 77 93
TEMP 94 91 84 81 80 78 88 94 96 94 85 82 79 77 87 92 92 90
DEWPT 74 75 73 71 70 70 74 75 75 76 73 71 70 70 74 75 75 76
RH 53 60 70 72 72 76 63 54 51 56 67 69 74 79 65 58 58 64
WIND DIR SW S S S S S SW SW SW SW SW S SW SW SW W W SW
WIND SPD 8 5 6 6 6 6 9 8 8 4 4 5 5 5 6 6 6 4
CLOUDS SC SC SC SC SC FW FW SC FW SC SC SC SC FW SC SC SC SC
POP 12HR 10 5 10 20 20
QPF 12HR 0 0 0 0.00-0.26 0.00-0.50
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S S
TSTMS S S S S
HEAT INDEX 105103 90 85 82 97107108107 91 86 80 95103104101
MAX HEAT 105 109 101 90 111 113 105 91 109 110
EXTREME HEAT W W W W W W W W W W W W W W W W W W
DATE THU 08/13/26 FRI 08/14/26 SAT 08/15/26 SUN 08/16/26
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 93 74 92 74 95 76 94
TEMP 81 76 91 88 78 75 89 89 79 75 93 92 80 76 92 88
DEWPT 72 71 76 76 73 71 75 75 72 69 73 75 71 69 73 74
PWIND DIR S SW SE E SE SW SW W
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC SC SC SC B1 SC SC SC SC FW FW FW SC SC
POP 12HR 20 20 30 10 5 5 10 10
RAIN SHWRS S S S S C
TSTMS S S S S S
MOZ049-050-102100-
OSAGE MO-CALLAWAY MO-
INCLUDING THE CITY OF FULTON
126 PM CDT MON AUG 10 2026
DATE MON 08/10/26 TUE 08/11/26 WED 08/12/26
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 77 95 76 94
TEMP 94 90 83 81 79 77 85 93 94 91 83 81 78 77 85 92 93 90
DEWPT 72 74 71 70 69 69 72 74 73 75 71 70 69 70 73 73 73 75
RH 49 60 67 69 72 76 65 54 51 60 67 69 74 79 67 54 52 62
WIND DIR SW S S SW SW SW SW SW SW SW SW SW SW S SW SW SW S
WIND SPD 9 4 5 6 6 8 9 9 8 3 4 5 5 5 8 8 6 3
WIND GUST 19 16 17 18 19 21 20 19 16 16 19
CLOUDS SC SC FW FW FW FW FW FW FW SC SC SC FW CL SC SC SC SC
POP 12HR 10 0 0 5 20
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S
TSTMS S S
HEAT INDEX 103100 87 84 80 91102103102 88 84 92102102100
MAX HEAT 102 107 99 87 107 109 102 87 107 109
EXTREME HEAT W W W W W W W W W W W W W W W W W W
DATE THU 08/13/26 FRI 08/14/26 SAT 08/15/26 SUN 08/16/26
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 94 74 93 74 95 75 92
TEMP 80 76 91 88 78 74 90 89 79 75 92 90 79 75 90 87
DEWPT 70 70 73 75 72 70 72 74 70 68 71 73 69 68 71 72
PWIND DIR S SW SE SE SE SW SW W
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC FW FW FW SC FW
POP 12HR 5 5 20 5 10 5 10 10
RAIN SHWRS C S S S
TSTMS S S S S
MOZ042-102100-
AUDRAIN MO-
INCLUDING THE CITY OF MEXICO
126 PM CDT MON AUG 10 2026
DATE MON 08/10/26 TUE 08/11/26 WED 08/12/26
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 77 92 76 90
TEMP 91 88 81 80 78 77 84 90 92 90 82 80 78 76 84 88 89 87
DEWPT 75 77 72 69 68 68 72 75 74 76 72 69 68 69 73 74 74 76
RH 60 70 74 69 71 74 67 62 56 64 72 69 71 79 70 63 61 70
WIND DIR SW S S SW SW SW SW SW SW SW SW SW S S SW SW SW S
WIND SPD 11 5 8 8 9 10 12 11 11 4 6 6 8 8 10 10 9 4
WIND GUST 20 21 24 21 18 18 20
CLOUDS SC SC FW FW FW FW FW FW SC SC SC SC FW FW SC SC SC FW
POP 12HR 10 5 5 10 30
QPF 12HR 0 0 0 0 0.00-0.20
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S
TSTMS S S
HEAT INDEX 102100 86 82 90100102102 87 83 90 97 99 98
MAX HEAT 95 102 98 84 103 106 99 84 101 103
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE THU 08/13/26 FRI 08/14/26 SAT 08/15/26 SUN 08/16/26
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 71 89 73 91 73 88
TEMP 79 74 87 84 74 72 86 86 77 73 88 88 77 74 85 83
DEWPT 71 70 74 75 72 70 73 74 71 68 72 74 70 68 72 73
PWIND DIR S S E SE SE SW SW W
WIND CHAR LT LT GN GN GN GN LT LT
AVG CLOUDS SC SC SC SC SC B1 B1 SC SC SC SC FW FW SC SC SC
POP 12HR 20 20 40 10 20 10 20 20
RAIN SHWRS S S S C C S S S S
TSTMS S S S C C S S S S
MOZ041-047-048-102100-
BOONE MO-MONITEAU MO-COLE MO-
INCLUDING THE CITIES OF COLUMBIA AND JEFFERSON CITY
126 PM CDT MON AUG 10 2026
DATE MON 08/10/26 TUE 08/11/26 WED 08/12/26
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 78 96 78 95
TEMP 95 91 84 82 80 78 86 93 94 92 84 82 80 78 86 93 94 91
DEWPT 73 75 71 70 69 69 72 74 74 75 72 70 69 70 73 74 74 75
RH 49 60 65 67 69 74 63 54 53 58 67 67 69 76 65 54 53 60
WIND DIR SW S S S SW SW SW SW SW SW S SW SW S SW SW SW S
WIND SPD 9 4 5 5 6 6 9 9 8 3 4 4 5 5 6 6 6 3
WIND GUST 20 16 17 20 21 24 21 19 14 16 17 17 19 17
CLOUDS SC SC FW FW FW FW FW FW FW SC SC SC FW FW SC SC FW FW
POP 12HR 10 0 0 5 5
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S
TSTMS S S
HEAT INDEX 104101 89 85 83 92103105104 90 85 81 93103104102
MAX HEAT 102 107 101 88 107 110 102 87 110 110
EXTREME HEAT W W W W W W W W W W W W W W W W W W
DATE THU 08/13/26 FRI 08/14/26 SAT 08/15/26 SUN 08/16/26
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 75 94 76 95 76 93
TEMP 81 77 91 88 78 75 90 90 79 76 92 90 80 76 89 87
DEWPT 70 70 73 74 71 70 73 73 70 68 72 73 69 68 72 73
PWIND DIR S S SE SE SE SW SW W
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW SC SC SC SC SC SC SC SC FW SC FW FW FW SC FW
POP 12HR 5 5 20 5 10 10 10 10
RAIN SHWRS C S S S S
TSTMS S S S S S
ILZ095>097-MOZ018-019-026-027-034>036-102100-
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 PM CDT MON AUG 10 2026
DATE MON 08/10/26 TUE 08/11/26 WED 08/12/26
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 77 93 76 90
TEMP 91 88 82 80 78 77 85 90 92 91 83 80 78 76 84 88 89 88
DEWPT 75 77 74 71 69 69 73 75 76 77 74 72 70 70 74 75 75 76
RH 60 70 77 74 74 76 67 62 60 64 74 77 76 82 72 66 64 68
WIND DIR SW S S SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW
WIND SPD 9 4 5 5 6 8 10 10 9 4 4 3 4 4 6 6 6 4
WIND GUST 21 14 17 17 21 23 25 23 20 14 16 18 18 19 18
CLOUDS SC SC FW FW FW SC SC SC SC SC SC SC FW FW SC SC SC SC
POP 12HR 10 10 10 20 40
QPF 12HR 0 0 0 0.00-0.38 0.00-0.88
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS IS IS C C
TSTMS IS IS C C
HEAT INDEX 101100 88 82 92101104105 89 82 90 98100 99
MAX HEAT 98 106 103 90 107 112 106 91 105 107
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE THU 08/13/26 FRI 08/14/26 SAT 08/15/26 SUN 08/16/26
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 88 70 87 72 91 73 87
TEMP 77 73 85 82 73 71 84 85 75 73 88 88 76 74 85 83
DEWPT 73 71 75 75 72 70 74 75 71 69 74 75 72 70 74 74
PWIND DIR SE E E E SE SW SW NW
WIND CHAR LT LT LT LT GN LT LT LT
AVG CLOUDS SC SC B1 B1 B1 B1 B2 SC SC SC SC SC SC SC SC SC
POP 12HR 30 50 60 20 20 10 20 20
RAIN SHWRS C C S C L S S S S S S S S
TSTMS C C S C C S S S S S S S
ILZ069-074-102100-
CLINTON IL-WASHINGTON IL-
126 PM CDT MON AUG 10 2026
DATE MON 08/10/26 TUE 08/11/26 WED 08/12/26
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 77 97 76 94
TEMP 94 90 83 82 80 77 87 94 95 92 84 81 78 77 87 92 92 88
DEWPT 76 76 74 72 71 71 75 77 76 77 73 72 71 71 75 77 77 77
RH 56 64 74 72 74 82 68 58 54 62 70 74 79 82 68 62 62 70
WIND DIR SW S S S SW S SW SW SW SW S S W SW SW SW SW S
WIND SPD 8 5 8 9 6 5 8 8 6 4 6 5 5 3 5 5 5 3
WIND GUST 17 16
CLOUDS SC SC SC SC SC SC SC FW FW SC SC SC SC SC SC SC SC SC
POP 12HR 10 5 10 20 30
QPF 12HR 0 0 0 0.00-0.11 0.00-0.07
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S C C S
TSTMS S S C C S
HEAT INDEX 106102 90 86 81 97108110105 90 85 96106107101
MAX HEAT 105 109 101 93 110 113 105 93 111 112
EXTREME HEAT W W W W W W W W W W W W W W W W W W
DATE THU 08/13/26 FRI 08/14/26 SAT 08/15/26 SUN 08/16/26
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 74 92 74 95 75 94
TEMP 80 75 90 87 78 74 89 88 78 74 92 90 79 76 92 88
DEWPT 73 72 77 77 74 72 76 76 72 70 75 75 71 70 74 75
PWIND DIR S SW SE E SE S S W
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC SC B1 SC B1 SC SC FW SC FW FW FW SC FW
POP 12HR 20 20 30 10 10 5 5 10
RAIN SHWRS S S S S S C
TSTMS S S S S S S
ILZ070-102100-
MARION IL-
INCLUDING THE CITIES OF CENTRALIA AND SALEM
126 PM CDT MON AUG 10 2026
DATE MON 08/10/26 TUE 08/11/26 WED 08/12/26
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 77 95 76 92
TEMP 92 88 82 81 79 77 86 92 94 90 83 81 78 76 85 91 91 86
DEWPT 75 75 72 71 70 70 74 75 75 75 72 71 70 71 74 75 76 75
RH 58 66 72 72 74 79 68 58 54 62 70 72 76 85 70 60 62 70
WIND DIR SW SW S S SW S SW SW SW SW S SW SW SW SW SW SW S
WIND SPD 8 5 8 8 6 5 8 8 8 4 6 5 5 4 5 6 5 3
WIND GUST 18 17 16
CLOUDS SC SC SC SC B1 SC SC SC FW SC SC SC SC SC SC SC SC SC
POP 12HR 10 10 10 20 50
QPF 12HR 0 0 0 0.00-0.13 0.05-0.11
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS IS S S C C S
TSTMS IS S S C C S
HEAT INDEX 104 98 87 85 81 94104106100 88 85 92102102 95
MAX HEAT 105 106 96 87 107 109 97 85 106 107
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE THU 08/13/26 FRI 08/14/26 SAT 08/15/26 SUN 08/16/26
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 91 73 90 73 93 75 92
TEMP 79 75 89 85 77 74 88 86 77 73 90 88 79 75 90 86
DEWPT 72 72 75 75 72 71 74 74 71 70 74 74 70 69 73 73
PWIND DIR S SW SE E SE S S W
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC B1 B1 SC B1 SC SC FW SC FW FW FW SC SC
POP 12HR 20 20 40 20 10 5 5 10
RAIN SHWRS S S S C C S S
TSTMS S S S C S S S
MOZ074-084-085-099-102100-
SAINT FRANCOIS MO-IRON MO-MADISON MO-REYNOLDS MO-
INCLUDING THE CITY OF FARMINGTON
126 PM CDT MON AUG 10 2026
DATE MON 08/10/26 TUE 08/11/26 WED 08/12/26
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 75 95 75 95
TEMP 93 89 80 78 76 75 85 93 94 91 82 79 77 75 85 93 93 88
DEWPT 72 73 72 70 69 69 72 72 71 72 71 70 69 69 72 72 72 73
RH 51 59 77 76 79 82 65 51 47 54 69 74 76 82 65 51 51 61
WIND DIR S S S S SW SW SW SW SW SW SW SW SW SW SW SW SW S
WIND SPD 5 3 3 4 4 3 4 5 5 2 3 3 3 3 4 4 4 2
WIND GUST 16 13 17 18 18 18 17 16 16 13 14 16 17 16 17 14 14 12
CLOUDS FW FW FW FW FW FW FW FW FW FW SC SC SC FW SC FW FW SC
POP 12HR 0 0 0 10 20
QPF 12HR 0 0 0 0 0.00-0.47
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S S
TSTMS S S S S
HEAT INDEX 101 97 82 91101102 99 85 80 91102102 96
MAX HEAT 103 106 96 83 107 110 100 85 109 109
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE THU 08/13/26 FRI 08/14/26 SAT 08/15/26 SUN 08/16/26
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 74 95 73 96 75 96
TEMP 79 75 92 90 79 75 93 90 78 74 94 91 79 75 94 90
DEWPT 71 69 72 74 70 69 71 72 69 66 69 70 67 66 68 69
PWIND DIR SW SW S SW S SW SW W
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC SC SC FW SC FW FW FW FW FW FW FW FW FW
POP 12HR 5 5 5 5 0 5 5 10
MOZ051-060-102100-
MONTGOMERY MO-WARREN MO-
126 PM CDT MON AUG 10 2026
DATE MON 08/10/26 TUE 08/11/26 WED 08/12/26
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 76 94 75 92
TEMP 93 90 81 80 78 76 85 92 94 92 82 80 77 75 84 91 91 89
DEWPT 74 76 73 70 69 69 74 75 75 77 73 70 69 70 74 75 75 77
RH 54 64 77 72 74 79 70 58 54 62 74 72 76 84 72 60 60 68
WIND DIR SW S S SW SW SW SW SW SW SW SW SW S SW SW W SW S
WIND SPD 6 2 4 5 5 6 8 8 6 2 3 4 4 4 6 5 4 2
WIND GUST 19 14 16 18 19 20 19 18 16 16 17 17 14
CLOUDS SC B1 FW FW FW FW FW FW FW SC SC SC FW FW SC SC SC SC
POP 12HR 10 5 5 10 30
QPF 12HR 0 0 0 0 0.00-0.44
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C
TSTMS C C
HEAT INDEX 103101 86 81 92104105106 88 84 91102103102
MAX HEAT 100 107 101 86 110 113 105 86 107 109
EXTREME HEAT W W W W W W W W W W W W W W W W W W
DATE THU 08/13/26 FRI 08/14/26 SAT 08/15/26 SUN 08/16/26
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 71 92 72 94 73 92
TEMP 79 74 90 87 76 73 89 88 78 73 91 90 78 74 89 86
DEWPT 72 71 75 77 73 71 75 76 72 68 74 75 70 69 73 74
PWIND DIR S SW E SE SE SW SW W
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC SC SC SC B1 SC SC SC SC FW FW FW SC SC
POP 12HR 10 20 30 5 10 10 10 10
RAIN SHWRS S S S C C S S
TSTMS S S S C S S S
MOZ052-102100-
LINCOLN MO-
126 PM CDT MON AUG 10 2026
DATE MON 08/10/26 TUE 08/11/26 WED 08/12/26
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 77 95 77 92
TEMP 93 90 83 80 79 77 87 93 94 93 84 81 79 77 85 91 91 90
DEWPT 74 76 73 70 69 69 74 76 75 77 73 71 70 70 75 76 75 77
RH 54 64 72 72 72 76 65 58 54 60 70 72 74 79 72 62 60 66
WIND DIR SW S S SW SW S SW SW SW SW SW SW SW SW SW W SW SW
WIND SPD 6 2 4 4 5 5 6 8 6 3 3 4 4 4 5 5 4 2
WIND GUST 17 14 17 18 19 18 17 14 14 16
CLOUDS SC B1 SC FW SC FW SC FW FW B1 SC SC FW FW SC SC SC SC
POP 12HR 10 10 10 20 30
QPF 12HR 0 0 0 0.00-0.06 0.00-0.32
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C S S
TSTMS C C S S
HEAT INDEX 103103 88 84 95106107107 90 85 94103103103
MAX HEAT 98 107 102 86 109 110 105 90 106 106
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE THU 08/13/26 FRI 08/14/26 SAT 08/15/26 SUN 08/16/26
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 92 72 90 73 94 75 91
TEMP 80 75 89 86 76 73 88 88 78 74 91 91 79 75 89 87
DEWPT 72 71 76 76 73 71 75 76 72 69 74 76 71 69 74 74
PWIND DIR S SW E E SE SW SW W
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC SC SC B1 B1 SC SC SC SC FW FW SC SC SC
POP 12HR 20 20 40 10 10 10 20 20
RAIN SHWRS S S S C C S S S
TSTMS S S S C S S S S
ILZ058-059-098-099-102100-
GREENE IL-MACOUPIN IL-CALHOUN IL-JERSEY IL-
126 PM CDT MON AUG 10 2026
DATE MON 08/10/26 TUE 08/11/26 WED 08/12/26
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 76 94 74 91
TEMP 92 88 81 79 77 76 86 92 93 91 82 80 77 75 84 90 90 88
DEWPT 74 76 73 71 70 70 73 75 76 76 73 72 70 70 74 75 75 75
RH 56 68 77 77 79 82 65 58 58 62 74 77 79 84 72 62 62 66
WIND DIR SW S S S S S SW SW SW SW SW S SW SW SW W SW SW
WIND SPD 8 4 5 5 6 6 9 9 9 4 3 4 4 4 6 6 6 3
CLOUDS B1 B1 SC FW SC FW SC FW SC SC SC SC SC FW SC SC SC SC
POP 12HR 10 10 10 20 30
QPF 12HR 0 0 0 0.00-0.53 0.00-0.06
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS IS C C S S S
TSTMS IS C C S S S
HEAT INDEX 102 99 86 93103105103 88 81 91100101 98
MAX HEAT 98 106 101 86 109 111 105 87 105 106
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE THU 08/13/26 FRI 08/14/26 SAT 08/15/26 SUN 08/16/26
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 90 70 88 71 92 73 90
TEMP 78 73 87 84 74 72 86 86 76 72 89 89 77 74 88 85
DEWPT 73 72 75 75 72 70 74 74 71 69 74 75 71 70 73 73
PWIND DIR SE SE E E SE S SW NW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC B1 SC B1 B1 SC SC SC SC FW FW SC SC SC
POP 12HR 20 30 50 20 20 10 20 20
RAIN SHWRS S S C S C C S S S S S
TSTMS S S C S C C S S S S S
ILZ060-064-065-102100-
MONTGOMERY IL-BOND IL-FAYETTE IL-
INCLUDING THE CITIES OF LITCHFIELD AND VANDALIA
126 PM CDT MON AUG 10 2026
DATE MON 08/10/26 TUE 08/11/26 WED 08/12/26
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 76 93 74 91
TEMP 91 87 81 79 78 76 85 91 93 90 82 79 76 74 84 89 89 86
DEWPT 75 77 73 71 70 70 74 76 76 77 73 71 70 70 74 76 77 76
RH 60 72 77 77 76 82 70 62 58 66 74 77 82 87 72 66 68 72
WIND DIR SW S S S S S SW SW SW SW S SW SW SW SW SW SW S
WIND SPD 8 4 6 6 6 6 9 9 8 4 4 4 4 3 5 6 5 3
WIND GUST 17
CLOUDS B1 SC SC SC B1 FW SC SC FW SC SC SC SC FW SC SC SC SC
POP 12HR 10 10 10 30 40
QPF 12HR 0 0 0 0.00-0.49 0.00-0.11
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS IS C C C C S
TSTMS IS C C C C S
HEAT INDEX 102 98 86 81 93104106103 87 80 91101102 96
MAX HEAT 102 106 101 93 109 112 103 93 106 106
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE THU 08/13/26 FRI 08/14/26 SAT 08/15/26 SUN 08/16/26
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 89 71 88 71 91 73 90
TEMP 77 73 87 84 75 72 85 85 75 72 89 87 77 74 88 85
DEWPT 72 71 76 76 72 70 75 75 71 69 75 76 71 69 74 74
PWIND DIR S S E E SE S S W
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC B1 B1 B1 B1 B1 SC SC FW FW FW FW SC SC
POP 12HR 20 30 60 30 20 5 10 20
RAIN SHWRS S S C S C L C S S S
TSTMS S S C S C C S S S S
ILZ079-102100-
RANDOLPH IL-
INCLUDING THE CITIES OF CHESTER AND SPARTA
126 PM CDT MON AUG 10 2026
DATE MON 08/10/26 TUE 08/11/26 WED 08/12/26
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 76 98 76 95
TEMP 95 91 83 80 78 76 87 95 96 93 84 81 78 76 87 94 94 90
DEWPT 74 76 74 72 70 70 75 75 75 76 73 72 71 71 75 76 76 77
RH 51 62 74 77 76 82 68 53 51 58 70 74 79 85 68 56 56 66
WIND DIR S S S S S S SW SW SW SW S SW SW SW SW SW SW S
WIND SPD 6 5 8 8 6 5 6 6 6 4 8 6 5 4 5 5 5 3
CLOUDS SC FW FW FW SC FW FW FW FW FW SC FW SC SC SC SC SC SC
POP 12HR 5 0 5 10 20
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S
TSTMS S S
HEAT INDEX 106103 89 84 96107109106 91 86 97107108103
MAX HEAT 107 109 99 85 110 113 105 88 110 112
EXTREME HEAT W W W W W W W W W W W W W W W W W W
DATE THU 08/13/26 FRI 08/14/26 SAT 08/15/26 SUN 08/16/26
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 74 94 73 97 75 97
TEMP 80 75 92 90 80 75 91 90 79 74 94 92 80 76 94 90
DEWPT 73 71 76 77 73 71 75 76 72 69 73 74 70 68 72 74
PWIND DIR S SW S SE SE SW S W
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC SC SC SC B1 SC SC FW SC FW FW FW FW FW
POP 12HR 10 20 20 10 5 0 5 10
RAIN SHWRS S S S
TSTMS S S S
MOZ075-102100-
SAINTE GENEVIEVE MO-
126 PM CDT MON AUG 10 2026
DATE MON 08/10/26 TUE 08/11/26 WED 08/12/26
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 76 97 76 95
TEMP 95 91 82 80 78 76 86 95 96 93 84 81 79 76 86 94 94 89
DEWPT 73 74 72 70 69 69 73 73 72 74 72 70 69 69 73 74 74 75
RH 49 58 72 72 74 79 65 49 46 54 67 69 72 79 65 53 53 64
WIND DIR S S S S SW SW SW SW SW SW S SW SW SW SW SW SW S
WIND SPD 6 4 8 9 8 8 8 6 6 4 6 8 8 6 6 5 5 4
WIND GUST 18
CLOUDS FW FW SC FW SC FW FW FW FW FW SC FW FW SC SC SC SC SC
POP 12HR 0 0 0 10 20
QPF 12HR 0 0 0 0 0.00-0.20
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S S
TSTMS S S S S
HEAT INDEX 104101 88 83 93104106103 90 85 93105104100
MAX HEAT 107 107 99 85 110 111 103 88 110 110
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE THU 08/13/26 FRI 08/14/26 SAT 08/15/26 SUN 08/16/26
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 75 95 74 97 76 97
TEMP 80 76 92 90 80 76 92 90 80 75 95 93 81 77 94 91
DEWPT 71 70 74 75 71 69 73 74 70 67 70 72 68 67 70 71
PWIND DIR SW SW S S S SW SW W
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC SC SC SC SC SC FW SC FW FW FW FW FW FW
POP 12HR 5 10 10 5 0 5 5 10
RAIN SHWRS S S S
TSTMS S S S
MOZ059-062-102100-
GASCONADE MO-FRANKLIN MO-
INCLUDING THE CITIES OF WASHINGTON, UNION, AND SULLIVAN
126 PM CDT MON AUG 10 2026
DATE MON 08/10/26 TUE 08/11/26 WED 08/12/26
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 77 97 76 94
TEMP 95 91 82 81 79 77 87 94 96 93 83 81 78 76 86 93 93 90
DEWPT 72 74 71 69 68 69 73 74 72 75 71 70 69 69 73 74 73 75
RH 48 58 69 67 69 76 63 53 46 56 67 69 74 79 65 54 52 62
WIND DIR SW S S SW SW SW SW SW SW SW SW SW S S SW W SW S
WIND SPD 6 3 4 5 5 5 6 6 5 2 3 4 4 4 5 5 4 2
WIND GUST 14 17 18 18 18 14 16 16 17
CLOUDS FW SC SC FW FW FW FW FW FW SC SC SC FW FW SC SC SC SC
POP 12HR 5 0 5 10 20
QPF 12HR 0 0 0 0 0.00-0.49
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S S
TSTMS S S S S
HEAT INDEX 104101 87 84 94104105105 88 84 94104103102
MAX HEAT 102 107 99 86 110 113 105 85 107 107
EXTREME HEAT W W W W W W W W W W W W W W W W W W
DATE THU 08/13/26 FRI 08/14/26 SAT 08/15/26 SUN 08/16/26
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 74 94 74 96 75 95
TEMP 80 76 92 89 79 75 91 90 79 74 94 92 79 75 92 89
DEWPT 71 70 74 75 72 70 73 75 70 67 71 73 69 68 71 72
PWIND DIR SW SW S SE SE SW SW W
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW SC SC SC SC SC SC SC SC FW FW FW FW FW SC SC
POP 12HR 10 10 20 5 5 5 10 10
RAIN SHWRS S S
TSTMS S S
MOZ072-073-102100-
CRAWFORD MO-WASHINGTON MO-
126 PM CDT MON AUG 10 2026
DATE MON 08/10/26 TUE 08/11/26 WED 08/12/26
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 77 96 77 95
TEMP 94 90 82 80 78 77 87 94 95 92 83 80 78 77 87 94 93 88
DEWPT 72 72 70 68 68 68 72 72 71 72 70 69 68 69 73 72 72 73
RH 49 56 67 67 71 74 61 49 46 52 65 69 71 76 63 49 51 61
WIND DIR SW S S S SW SW SW SW SW SW SW SW S S SW SW SW S
WIND SPD 6 3 4 5 5 5 6 6 5 3 3 4 4 4 6 5 5 3
WIND GUST 13 16 19 19 18 18 16 14 16 17 16 18
CLOUDS FW FW SC FW FW FW FW FW FW FW SC SC FW FW SC FW FW SC
POP 12HR 0 0 0 10 20
QPF 12HR 0 0 0 0 0.00-0.32
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C S S
TSTMS C C S S
HEAT INDEX 102 97 86 82 94102103 99 87 82 94102101 96
MAX HEAT 103 106 96 85 107 109 99 84 107 106
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE THU 08/13/26 FRI 08/14/26 SAT 08/15/26 SUN 08/16/26
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 75 95 75 96 76 95
TEMP 80 76 93 89 79 75 92 89 79 75 94 91 80 76 93 89
DEWPT 69 69 72 74 70 68 72 72 68 66 69 70 67 66 69 70
PWIND DIR SW SW S S S SW SW W
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC SC SC SC SC SC SC FW FW FW FW FW SC SC
POP 12HR 5 10 10 5 0 5 5 5
RAIN SHWRS S
TSTMS S
ILZ102-MOZ065-102100-
MONROE IL-JEFFERSON MO-
126 PM CDT MON AUG 10 2026
DATE MON 08/10/26 TUE 08/11/26 WED 08/12/26
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 77 97 77 95
TEMP 95 91 83 80 79 77 88 95 97 94 84 81 79 77 87 94 93 90
DEWPT 73 75 72 70 69 69 74 75 73 75 72 70 69 70 75 75 75 76
RH 49 60 70 72 72 76 63 53 46 54 67 69 72 79 68 54 56 64
WIND DIR SW S S S S S SW SW SW SW SW SW SW SW SW W SW S
WIND SPD 5 4 5 6 5 5 5 5 5 3 4 4 5 4 5 5 4 3
WIND GUST 18 18 16 16 14 14 16 14
CLOUDS SC SC SC SC SC FW SC FW FW FW SC FW FW SC SC SC SC SC
POP 12HR 5 0 5 10 20
QPF 12HR 0 0 0 0 0.00-0.25
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S S
TSTMS S S S S
HEAT INDEX 105102 88 83 97107108105 89 85 97106105101
MAX HEAT 106 109 100 86 111 113 105 86 110 110
EXTREME HEAT W W W W W W W W W W W W W W W W W W
DATE THU 08/13/26 FRI 08/14/26 SAT 08/15/26 SUN 08/16/26
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 74 94 74 97 75 96
TEMP 80 76 92 89 79 75 91 90 79 74 95 92 80 76 94 90
DEWPT 71 70 75 76 72 70 75 75 70 67 72 73 69 67 72 73
PWIND DIR SW SW S SE SE SW SW W
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC SC SC SC B1 SC SC FW SC FW FW FW SC SC
POP 12HR 10 20 20 5 5 5 5 10
RAIN SHWRS S S S
TSTMS S S S
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page