284
FOUS53 KLSX 161656
AFMLSX
AREA FORECAST MATRICES
NATIONAL WEATHER SERVICE SAINT LOUIS MO
1156 AM CDT SUN AUG 16 2026
ILZ100-101-MOZ061-063-064-162100-
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
1156 AM CDT SUN AUG 16 2026
DATE SUN 08/16/26 MON 08/17/26 TUE 08/18/26
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 71 85 66 89
TEMP 89 91 88 80 77 73 71 77 82 84 81 73 71 68 67 79 86 89 85
DEWPT 77 78 77 77 76 73 71 72 71 70 69 69 68 67 66 70 70 70 71
RH 68 66 70 91 97100100 85 69 63 67 87 90 97 97 74 59 54 63
WIND DIR W W N N NW N N N N N N N NE N N S SW S SE
WIND SPD 4 5 4 3 4 4 4 4 5 6 3 1 0 0 0 2 2 2 3
CLOUDS B1 SC SC B1 OV B2 B1 SC SC SC SC SC FW FW FW FW SC SC SC
POP 12HR 30 70 5 0 0
QPF 12HR 0.01 0.32-0.89 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C L C C
TSTMS C L C C
HEAT INDEX 101107101 85 87 89 84 80 91 95 91
MAX HEAT 109 116 103 90 93 85 95 100
EXTREME HEAT W W W
DATE WED 08/19/26 THU 08/20/26 FRI 08/21/26 SAT 08/22/26
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 71 87 68 82 65 84 66 85
TEMP 75 72 85 82 72 69 80 78 69 65 81 80 70 66 83 80
DEWPT 70 70 74 73 71 67 69 68 66 64 69 69 66 65 69 69
PWIND DIR SE NE NE E NE N N N
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC B1 B1 B1 SC B1 B1 B1 B1 SC SC SC SC SC SC FW
POP 12HR 50 40 50 30 30 10 5 5
RAIN SHWRS C C S C C C S C
TSTMS C S S C C S S
MOZ049-050-162100-
OSAGE MO-CALLAWAY MO-
INCLUDING THE CITY OF FULTON
1156 AM CDT SUN AUG 16 2026
DATE SUN 08/16/26 MON 08/17/26 TUE 08/18/26
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 68 83 64 90
TEMP 88 90 86 78 74 71 69 74 80 82 80 72 69 67 66 78 86 89 85
DEWPT 76 77 77 76 74 71 69 70 69 69 69 68 66 66 65 70 70 71 72
RH 68 66 75 94100100100 87 69 65 69 87 90 97 97 76 59 56 65
WIND DIR W NW N N N N N N N N N NE E SE SE S SW SW E
WIND SPD 4 5 4 4 3 3 3 4 4 4 2 1 1 1 2 3 3 2 2
CLOUDS SC SC B1 B2 B2 B1 SC SC FW SC SC FW FW FW FW FW SC FW FW
POP 12HR 40 60 5 0 0
QPF 12HR 0.01-0.14 0.05-1.02 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L C S S S
TSTMS L C S S S
HEAT INDEX 100103 96 82 86 82 91 95 91
MAX HEAT 105 109 97 88 90 83 95 99
EXTREME HEAT W W W
DATE WED 08/19/26 THU 08/20/26 FRI 08/21/26 SAT 08/22/26
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 70 87 67 82 64 84 65 85
TEMP 74 71 84 81 71 68 79 78 68 65 81 80 69 66 82 80
DEWPT 70 70 73 72 70 67 69 68 66 65 68 69 66 65 69 69
PWIND DIR E NE NE E E N N N
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW SC B1 SC B1 SC B1 B1 SC FW SC FW FW FW SC FW
POP 12HR 40 20 50 30 10 10 5 5
RAIN SHWRS S C S S C C S
TSTMS S C S S C C
MOZ042-162100-
AUDRAIN MO-
INCLUDING THE CITY OF MEXICO
1156 AM CDT SUN AUG 16 2026
DATE SUN 08/16/26 MON 08/17/26 TUE 08/18/26
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 86 66 81 62 85
TEMP 85 85 83 75 72 68 66 73 78 80 79 70 67 65 65 77 82 85 83
DEWPT 76 77 76 75 72 68 66 68 68 67 68 66 65 64 64 69 70 71 72
RH 75 77 80100100100100 84 71 65 69 87 93 97 97 76 67 63 70
WIND DIR W NW N N N N N N N N N NE SE S S S SW SW SE
WIND SPD 4 5 5 6 3 3 3 4 4 4 1 0 0 0 2 4 4 3 2
CLOUDS SC B1 B1 OV B2 B1 SC SC FW SC FW SC FW FW SC FW SC SC FW
POP 12HR 40 70 0 0 5
QPF 12HR 0.01-0.13 0.06-0.43 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L C S S
TSTMS L C S S
HEAT INDEX 94 96 91 83 87 90 89
MAX HEAT 96 100 89 85 89 93
HEAT Y Y Y
DATE WED 08/19/26 THU 08/20/26 FRI 08/21/26 SAT 08/22/26
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 69 82 64 79 62 81 64 81
TEMP 73 69 80 79 68 65 76 77 66 63 79 79 68 64 79 79
DEWPT 69 69 73 71 68 65 68 68 64 63 68 70 65 64 69 70
PWIND DIR E NE NE E E N N N
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC B1 B1 B1 B1 SC B1 SC SC FW SC SC FW FW SC FW
POP 12HR 60 30 40 20 20 10 5 5
RAIN SHWRS S L C C S S
TSTMS S C S C S
MOZ041-047-048-162100-
BOONE MO-MONITEAU MO-COLE MO-
INCLUDING THE CITIES OF COLUMBIA AND JEFFERSON CITY
1156 AM CDT SUN AUG 16 2026
DATE SUN 08/16/26 MON 08/17/26 TUE 08/18/26
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 69 84 66 91
TEMP 88 90 86 78 75 71 69 75 80 83 81 73 70 68 67 79 86 90 86
DEWPT 76 77 77 76 74 71 69 69 68 69 69 68 67 66 66 70 71 71 72
RH 68 66 75 94 97100100 82 67 63 67 84 90 93 97 74 61 54 63
WIND DIR W NW N N N N N N N N N NE E SE SE S SW S E
WIND SPD 3 4 5 4 3 3 3 3 3 4 2 1 0 1 1 3 3 2 2
WIND GUST 14
CLOUDS FW SC B1 B2 B2 B1 SC FW FW SC SC FW FW FW SC FW SC FW FW
POP 12HR 40 60 0 0 0
QPF 12HR 0.01-0.32 0.02-0.53 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L C S
TSTMS L C S
HEAT INDEX 100103 96 82 86 83 92 97 93
MAX HEAT 106 110 97 88 91 85 96 101
EXTREME HEAT W W W
DATE WED 08/19/26 THU 08/20/26 FRI 08/21/26 SAT 08/22/26
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 72 88 68 83 66 86 67 86
TEMP 75 72 84 82 71 68 79 79 69 66 82 81 70 67 83 81
DEWPT 71 70 73 72 70 68 69 69 66 65 69 70 66 66 69 70
PWIND DIR E NE NE E NE N N N
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW B1 B1 SC B1 SC B1 B1 SC FW SC FW FW FW SC FW
POP 12HR 40 20 40 30 10 5 5 5
RAIN SHWRS S C S S C C
TSTMS S C S S C C
ILZ095>097-MOZ018-019-026-027-034-162100-
ADAMS IL-BROWN IL-PIKE IL-KNOX MO-LEWIS MO-SHELBY MO-MARION MO-
MONROE MO-
INCLUDING THE CITIES OF QUINCY, MOUNT STERLING, PITTSFIELD,
AND HANNIBAL
1156 AM CDT SUN AUG 16 2026
DATE SUN 08/16/26 MON 08/17/26 TUE 08/18/26
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 86 66 82 64 86
TEMP 84 85 82 74 71 68 66 74 78 80 79 71 68 66 65 77 83 85 83
DEWPT 76 77 76 73 70 67 65 68 67 68 69 67 65 64 64 69 70 71 73
RH 77 77 82 97 97 97 97 82 69 67 72 87 90 93 97 76 65 63 72
WIND DIR NW NW N N N N N N N N N NE S S S SW SW SW SE
WIND SPD 4 5 5 5 3 3 3 4 4 4 1 0 0 1 2 4 4 3 1
WIND GUST 16 16
CLOUDS B1 B1 B2 B2 B1 SC FW FW FW FW FW SC FW FW FW SC SC SC SC
POP 12HR 80 50 0 0 5
QPF 12HR 0.00-0.16 0.00-0.34 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S C C C
TSTMS S S C C C
HEAT INDEX 93 95 89 82 81 87 91 89
MAX HEAT 100 103 92 85 88 91 95
DATE WED 08/19/26 THU 08/20/26 FRI 08/21/26 SAT 08/22/26
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 69 81 64 79 62 81 64 82
TEMP 72 69 78 78 68 65 77 77 66 63 79 79 68 65 80 79
DEWPT 70 69 72 71 67 64 67 68 64 63 68 70 66 64 69 70
PWIND DIR NE NE NE E NE N N N
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC B1 B2 B1 B1 SC B1 SC SC SC SC SC FW SC SC SC
POP 12HR 70 30 10 10 20 10 10 5
RAIN SHWRS C L C S S S S
TSTMS C S S S S
MOZ035-036-162100-
RALLS MO-PIKE MO-
INCLUDING THE CITY OF BOWLING GREEN
1156 AM CDT SUN AUG 16 2026
DATE SUN 08/16/26 MON 08/17/26 TUE 08/18/26
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 87 67 82 64 86
TEMP 86 86 84 76 73 69 67 75 79 81 80 72 69 66 65 78 84 86 84
DEWPT 76 77 76 75 72 69 67 68 68 67 68 67 65 64 64 69 70 70 72
RH 72 75 77 97 97100100 79 69 63 67 84 87 93 97 74 63 59 67
WIND DIR W W N N N N N N N N N N N S S S SW SW S
WIND SPD 4 4 4 4 3 3 3 3 4 3 1 0 0 0 1 3 3 2 1
WIND GUST 14
CLOUDS B1 SC B1 OV B2 SC FW FW FW FW FW SC FW FW FW FW SC SC SC
POP 12HR 50 60 0 0 5
QPF 12HR 0.01-0.13 0.12-0.32 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S L C S S
TSTMS S S L C S S
HEAT INDEX 96 97 93 81 84 83 88 92 90
MAX HEAT 100 106 97 86 88 83 91 95
HEAT Y Y Y
DATE WED 08/19/26 THU 08/20/26 FRI 08/21/26 SAT 08/22/26
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 70 83 65 80 63 82 65 83
TEMP 74 70 81 79 69 66 78 77 67 64 80 80 68 65 81 80
DEWPT 69 69 72 71 68 65 67 67 64 63 68 69 65 64 69 69
PWIND DIR E NE NE E E N N N
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC B1 B2 B1 B1 SC B1 SC SC SC SC SC SC SC SC FW
POP 12HR 70 30 30 10 20 10 10 5
RAIN SHWRS S L C S S S S
TSTMS S S C S S S
ILZ069-070-074-162100-
CLINTON IL-MARION IL-WASHINGTON IL-
INCLUDING THE CITIES OF CENTRALIA AND SALEM
1156 AM CDT SUN AUG 16 2026
DATE SUN 08/16/26 MON 08/17/26 TUE 08/18/26
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 71 85 65 88
TEMP 90 91 88 79 77 74 72 77 82 84 81 73 70 68 66 79 85 88 84
DEWPT 77 79 78 77 76 74 72 73 72 71 70 70 69 67 66 70 69 69 70
RH 66 68 72 94 97100100 87 72 65 69 90 97 97100 74 59 54 63
WIND DIR W W NW N N NW NW N N N N N NE N N N SW SW SE
WIND SPD 4 4 2 1 1 3 3 3 5 6 3 1 0 0 0 0 0 0 0
CLOUDS B2 SC SC B1 B2 B2 B1 B1 SC SC SC SC FW FW FW FW FW FW SC
POP 12HR 20 60 10 0 0
QPF 12HR 0 0.13-0.84 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C L C C
TSTMS C L C C
HEAT INDEX 103107101 81 87 89 84 89 92 88
MAX HEAT 108 114 102 88 90 93 86 92 97
EXTREME HEAT W W W
DATE WED 08/19/26 THU 08/20/26 FRI 08/21/26 SAT 08/22/26
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 70 88 68 82 64 83 64 85
TEMP 73 71 85 82 72 68 80 78 68 64 81 79 68 65 82 80
DEWPT 69 70 74 72 71 67 69 67 66 64 68 68 66 65 68 68
PWIND DIR S SW NE NE NE N N N
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC B1 B1 SC SC B1 B1 B1 SC SC SC SC FW SC FW
POP 12HR 40 50 50 30 20 10 5 5
RAIN SHWRS C C S C C C S S S S
TSTMS S S S C C S S S S
MOZ074-084-085-099-162100-
SAINT FRANCOIS MO-IRON MO-MADISON MO-REYNOLDS MO-
INCLUDING THE CITY OF FARMINGTON
1156 AM CDT SUN AUG 16 2026
DATE SUN 08/16/26 MON 08/17/26 TUE 08/18/26
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 71 86 65 91
TEMP 94 95 88 80 76 74 72 78 83 86 81 73 70 68 67 79 88 91 85
DEWPT 74 74 76 75 75 74 72 74 75 74 72 71 69 68 67 70 71 72 73
RH 53 51 68 85 97100100 88 77 68 74 93 97100100 74 57 54 67
WIND DIR W SW SW NE N N N N N N N N N NE NE S SW S SE
WIND SPD 3 3 1 1 1 2 3 3 3 3 2 1 0 0 0 0 1 1 1
WIND GUST 13 13 12 14
CLOUDS FW SC SC B1 B1 B1 B1 SC SC FW FW FW FW FW FW FW FW FW SC
POP 12HR 10 40 10 0 5
QPF 12HR 0.00-0.21 0.00-0.25 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C C C S
TSTMS S C C C S
HEAT INDEX 105107 99 83 91 94 84 80 94 98 92
MAX HEAT 110 114 100 100 103 86 100 105
EXTREME HEAT W W W
DATE WED 08/19/26 THU 08/20/26 FRI 08/21/26 SAT 08/22/26
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 70 92 68 84 65 85 64 86
TEMP 74 71 89 84 72 69 81 79 69 65 83 80 69 65 84 80
DEWPT 70 69 73 73 71 69 72 71 67 65 69 70 66 65 68 69
PWIND DIR S S NE NE NE NE N N
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW SC SC SC SC B1 B1 B1 SC SC SC FW SC FW FW FW
POP 12HR 20 20 50 40 30 20 10 5
RAIN SHWRS S S S S C C C C C S S S
TSTMS S S S S C C C C C S S S
MOZ051-060-162100-
MONTGOMERY MO-WARREN MO-
1156 AM CDT SUN AUG 16 2026
DATE SUN 08/16/26 MON 08/17/26 TUE 08/18/26
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 90 67 83 63 88
TEMP 86 89 85 77 74 70 68 74 80 82 79 71 68 66 64 77 85 88 84
DEWPT 77 79 77 76 74 70 68 70 70 70 70 68 66 65 64 70 71 72 73
RH 75 73 77 97100100100 87 72 67 74 90 93 97100 79 63 59 70
WIND DIR W W N N N N N N N N N NE E SE S S SW SW SE
WIND SPD 3 3 3 3 3 3 3 3 3 3 1 0 0 0 0 2 1 1 1
WIND GUST 13
CLOUDS SC SC B1 B2 B2 B1 B1 FW SC SC SC SC FW FW FW FW SC SC SC
POP 12HR 40 70 5 0 0
QPF 12HR 0.02 0.21-0.67 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L L C S
TSTMS L L C S
HEAT INDEX 98104 96 82 86 80 90 94 90
MAX HEAT 102 112 95 88 91 94 98
EXTREME HEAT W W W
DATE WED 08/19/26 THU 08/20/26 FRI 08/21/26 SAT 08/22/26
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 69 85 65 81 62 83 63 84
TEMP 73 69 82 80 70 66 78 76 67 63 80 78 68 64 81 78
DEWPT 70 69 74 72 69 66 70 68 65 63 69 70 66 64 70 69
PWIND DIR SE NE NE E E N N N
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC B1 B1 B1 SC B1 B1 SC FW SC SC SC SC SC FW
POP 12HR 50 30 40 30 20 10 5 5
RAIN SHWRS C C S C C S S
TSTMS C S S C S S
MOZ052-162100-
LINCOLN MO-
1156 AM CDT SUN AUG 16 2026
DATE SUN 08/16/26 MON 08/17/26 TUE 08/18/26
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 89 68 84 64 88
TEMP 86 89 87 78 75 71 69 75 81 83 80 72 69 66 65 78 85 88 85
DEWPT 77 78 77 76 74 71 69 70 69 69 69 68 67 66 65 70 71 71 72
RH 75 70 72 94 97100100 84 67 63 69 87 93100100 76 63 57 65
WIND DIR W W N N N N N N N N N NE N N S S SW SW SE
WIND SPD 3 4 3 3 3 3 3 3 3 3 1 0 0 0 0 2 2 1 1
WIND GUST 13
CLOUDS B1 SC SC B2 OV B1 SC FW FW SC FW SC FW FW FW FW SC SC SC
POP 12HR 40 70 0 0 0
QPF 12HR 0.02 0.15-0.68 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C L C
TSTMS C L C
HEAT INDEX 97103 98 85 86 83 90 94 91
MAX HEAT 100 109 100 88 90 83 92 96
HEAT Y Y Y
DATE WED 08/19/26 THU 08/20/26 FRI 08/21/26 SAT 08/22/26
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 70 85 66 81 63 83 65 84
TEMP 74 70 83 80 70 67 79 77 67 64 81 79 68 65 82 80
DEWPT 70 70 74 72 69 66 69 68 65 64 69 69 66 64 69 69
PWIND DIR SE NE NE E E N N N
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC B1 B1 B1 B1 SC B1 SC SC SC SC SC SC SC SC FW
POP 12HR 60 30 40 20 20 10 5 5
RAIN SHWRS L C S C S S
TSTMS C S S C S
ILZ058-059-098-099-162100-
GREENE IL-MACOUPIN IL-CALHOUN IL-JERSEY IL-
1156 AM CDT SUN AUG 16 2026
DATE SUN 08/16/26 MON 08/17/26 TUE 08/18/26
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 89 67 83 62 87
TEMP 86 87 86 77 74 71 68 75 81 82 80 71 68 65 64 78 84 87 84
DEWPT 76 77 76 75 73 70 68 69 68 68 68 67 66 65 64 68 68 69 70
RH 72 72 72 94 97 97100 82 65 63 67 87 93100100 71 59 55 63
WIND DIR W W N N NW N N N N N N NE NE N S S SW SW SE
WIND SPD 5 5 4 4 4 4 4 4 5 5 2 0 0 0 0 3 3 3 2
CLOUDS B1 SC SC B1 OV B2 SC SC SC FW FW SC FW FW FW FW FW SC SC
POP 12HR 30 70 0 0 0
QPF 12HR 0.01 0.16-0.84 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C L C S S
TSTMS S C L C S S
HEAT INDEX 96 99 96 83 84 81 88 91 88
MAX HEAT 100 108 99 87 90 83 92 96
HEAT Y Y Y
DATE WED 08/19/26 THU 08/20/26 FRI 08/21/26 SAT 08/22/26
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 69 84 64 81 61 82 63 84
TEMP 73 70 82 80 69 66 79 77 66 62 80 79 68 64 82 79
DEWPT 69 69 72 70 68 65 66 66 64 62 66 67 65 64 67 67
PWIND DIR SE NE NE E E NE N N
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC B1 B2 B1 SC SC B1 SC SC SC SC SC SC SC SC FW
POP 12HR 60 40 30 20 20 10 5 5
RAIN SHWRS S L C S C C S S S S
TSTMS S S S S C C S S S
ILZ060-064-065-162100-
MONTGOMERY IL-BOND IL-FAYETTE IL-
INCLUDING THE CITIES OF LITCHFIELD AND VANDALIA
1156 AM CDT SUN AUG 16 2026
DATE SUN 08/16/26 MON 08/17/26 TUE 08/18/26
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 89 69 83 62 86
TEMP 87 88 86 78 75 72 70 76 81 82 79 71 68 66 64 78 84 86 83
DEWPT 77 77 77 76 74 72 70 70 70 69 68 68 67 65 64 69 68 69 70
RH 72 70 75 94 97100100 82 69 65 69 90 97 97100 74 59 57 65
WIND DIR W W NW NW N NW N N N N N N NE N N SW SW SW S
WIND SPD 5 5 3 2 3 3 3 4 5 6 3 1 0 0 0 1 2 2 1
CLOUDS B2 SC SC B1 B2 B2 SC SC SC SC SC SC FW FW FW FW FW FW FW
POP 12HR 20 70 5 0 0
QPF 12HR 0.01 0.25-0.78 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C L C C S
TSTMS C L C C S
HEAT INDEX 98101 97 84 86 80 87 90 87
MAX HEAT 103 109 100 88 87 90 84 90 93
HEAT Y Y Y
DATE WED 08/19/26 THU 08/20/26 FRI 08/21/26 SAT 08/22/26
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 69 84 65 80 62 82 63 83
TEMP 73 70 82 80 70 66 78 77 66 63 79 78 68 64 82 79
DEWPT 68 69 73 71 69 65 66 66 64 62 66 67 65 64 67 68
PWIND DIR S NW NE E NE N N NW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC B1 B1 B1 SC SC B1 B1 SC SC SC SC SC SC SC FW
POP 12HR 50 50 40 20 20 10 10 5
RAIN SHWRS S C C S C C S S S
TSTMS S S S S C C S S
ILZ079-MOZ075-162100-
RANDOLPH IL-SAINTE GENEVIEVE MO-
INCLUDING THE CITIES OF CHESTER AND SPARTA
1156 AM CDT SUN AUG 16 2026
DATE SUN 08/16/26 MON 08/17/26 TUE 08/18/26
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 70 85 65 89
TEMP 93 94 89 80 77 75 72 77 82 85 81 74 71 68 67 78 86 89 84
DEWPT 77 78 79 78 76 74 72 74 75 74 72 70 69 67 67 70 71 72 73
RH 60 60 73 94 97 97100 90 79 70 74 87 93 97100 76 61 57 70
WIND DIR W W S N N NW NW N N N N N N N E S S S SE
WIND SPD 4 4 2 2 2 4 4 4 5 6 3 2 1 0 0 1 1 1 2
CLOUDS B1 SC SC B1 B2 B2 B1 B1 SC SC FW FW SC FW FW FW FW FW FW
POP 12HR 20 50 10 0 0
QPF 12HR 0 0.02-0.37 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C C C
TSTMS S C C C
HEAT INDEX 106112105 87 89 92 85 92 97 90
MAX HEAT 110 117 103 92 95 84 96 101
EXTREME HEAT W W W
DATE WED 08/19/26 THU 08/20/26 FRI 08/21/26 SAT 08/22/26
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 70 90 68 82 64 83 64 85
TEMP 74 71 87 83 72 69 80 78 69 65 81 79 69 65 83 79
DEWPT 70 70 76 74 72 69 72 70 67 65 70 70 67 65 70 70
PWIND DIR SE S NE NE NE N NW N
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW SC SC SC SC B1 B1 B1 B1 SC SC SC FW SC SC FW
POP 12HR 30 30 50 40 30 10 5 5
RAIN SHWRS C C S C C C S S C S
TSTMS C S S C C C S S
MOZ059-062-072-073-162100-
GASCONADE MO-FRANKLIN MO-CRAWFORD MO-WASHINGTON MO-
INCLUDING THE CITIES OF WASHINGTON, UNION, AND SULLIVAN
1156 AM CDT SUN AUG 16 2026
DATE SUN 08/16/26 MON 08/17/26 TUE 08/18/26
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 69 85 64 91
TEMP 91 93 88 79 75 72 70 76 82 84 79 72 69 67 66 80 88 90 85
DEWPT 76 77 77 77 75 72 70 73 72 72 70 69 68 66 66 70 71 72 72
RH 62 60 70 94100100100 90 72 67 74 90 97 97100 72 57 56 65
WIND DIR W W N N N NW N N N N N NE E SE SE S SW SW SE
WIND SPD 4 4 2 1 2 2 2 3 3 3 2 0 0 0 0 2 1 1 1
WIND GUST 12
CLOUDS SC FW B1 B2 OV B2 B1 SC SC FW SC SC FW FW FW FW SC SC FW
POP 12HR 30 60 10 0 0
QPF 12HR 0.00-0.20 0.03-1.04 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C C C
TSTMS C C C C
HEAT INDEX 104108 99 87 89 81 82 93 97 91
MAX HEAT 109 115 100 93 95 96 101
EXTREME HEAT W W W
DATE WED 08/19/26 THU 08/20/26 FRI 08/21/26 SAT 08/22/26
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 70 90 67 82 64 85 64 85
TEMP 74 71 87 82 72 68 80 77 68 65 82 79 69 65 83 79
DEWPT 70 69 74 72 71 68 71 69 66 65 69 69 66 64 69 69
PWIND DIR SE NE NE E E N N NW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW SC B1 SC SC B1 B1 B1 SC SC SC SC SC SC FW FW
POP 12HR 30 20 50 40 20 10 5 5
RAIN SHWRS C S S C C C S S S
TSTMS S S S C C C S S
ILZ102-MOZ065-162100-
MONROE IL-JEFFERSON MO-
1156 AM CDT SUN AUG 16 2026
DATE SUN 08/16/26 MON 08/17/26 TUE 08/18/26
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 70 85 65 90
TEMP 91 94 89 80 77 74 71 78 82 84 81 73 70 68 66 79 87 90 85
DEWPT 77 79 78 77 76 74 71 74 74 73 71 69 68 67 66 71 72 73 73
RH 64 62 70 91 97100100 88 77 70 72 87 93 97100 77 61 58 67
WIND DIR W W SW N NW NW NW N NW NW N NE NE NE S S S S SE
WIND SPD 4 4 3 2 2 3 3 3 4 4 3 1 0 0 0 1 1 1 2
CLOUDS B1 SC SC B1 B2 B2 B2 B1 SC FW SC SC FW FW FW FW SC SC SC
POP 12HR 30 60 5 0 0
QPF 12HR 0 0.14-0.62 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C C C
TSTMS C C C C
HEAT INDEX 105112103 85 88 91 84 81 94 98 91
MAX HEAT 109 118 100 92 95 83 97 102
EXTREME HEAT W W W
DATE WED 08/19/26 THU 08/20/26 FRI 08/21/26 SAT 08/22/26
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 70 89 68 82 64 84 64 85
TEMP 74 71 86 83 72 68 80 77 68 65 81 79 69 65 83 79
DEWPT 70 70 76 74 71 68 72 70 66 65 71 70 66 65 71 70
PWIND DIR SE NE NE NE E N NW NW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC B1 SC B1 B1 B1 B1 B1 SC SC SC SC SC FW FW
POP 12HR 40 30 50 40 30 10 5 5
RAIN SHWRS C C S C C C S S C
TSTMS C S S C C C S S
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page