166
FOUS53 KLSX 180246
AFMLSX
AREA FORECAST MATRICES
NATIONAL WEATHER SERVICE SAINT LOUIS MO
946 PM CDT THU SEP 17 2026
ILZ100-101-MOZ061-063-064-180900-
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
946 PM CDT THU SEP 17 2026
DATE 09/17/26 FRI 09/18/26 SAT 09/19/26 SUN
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 73 96 73 96 73
TEMP 82 78 75 74 83 93 95 89 80 77 75 73 85 94 96 90 81 78 75 73
DEWPT 73 73 72 72 74 74 72 73 73 72 70 68 69 68 66 67 67 65 64 64
RH 74 85 90 93 74 54 48 59 79 85 84 84 59 43 38 47 63 64 69 73
WIND DIR SW W N NE E NE NE E SE SE SE S SW W SW S S SW SW W
WIND SPD 2 2 2 3 3 3 3 4 5 5 4 4 6 6 5 2 2 3 3 3
WIND GUST 12 16 18
CLOUDS FW FW FW FW FW FW FW SC SC FW FW FW SC B2 B1 B1 SC SC SC SC
POP 12HR 10 10 5 0 10
QPF 12HR 0 0.00-0.13 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S
TSTMS
HEAT INDEX 86 89103104 96 83 89 98100 93 83
MAX HEAT 98 84 107 109 97 86 102 104 93 82
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE 09/20 MON 09/21/26 TUE 09/22/26 WED 09/23/26 THU 09/24/26
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 69 83 62 76 58 78 59 81
TEMP 90 86 73 69 81 77 66 62 74 72 62 58 75 73 63 60 78 76
DEWPT 67 68 69 67 69 68 64 61 63 61 59 57 61 60 60 59 62 62
PWIND DIR NW NE NE N N NE NE NE NE
WIND CHAR LT LT LT LT GN LT LT LT LT
AVG CLOUDS SC SC B1 B1 B2 B2 B1 SC B1 B1 B1 SC SC SC SC SC SC SC
POP 12HR 20 40 50 30 10 5 5 5 10
RAIN SHWRS S S S C C C C S
TSTMS S S C S C S
MOZ049-180900-
OSAGE MO-
946 PM CDT THU SEP 17 2026
DATE 09/17/26 FRI 09/18/26 SAT 09/19/26 SUN
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 72 96 72 96 72
TEMP 79 77 75 73 82 94 94 86 79 77 74 73 85 93 96 89 80 77 74 72
DEWPT 73 72 71 71 72 72 71 72 71 69 66 64 66 66 66 65 65 63 62 62
RH 82 85 87 93 72 49 47 63 77 76 76 73 53 41 38 45 60 62 66 71
WIND DIR S SE SE SE S SW SW E S S S SW SW SW SW S S SW W W
WIND SPD 3 2 2 2 3 4 3 3 4 4 5 5 6 6 5 2 2 3 4 3
CLOUDS CL CL CL CL CL CL B1 SC CL FW SC B1 B1 B1 SC SC FW FW B1 B1
POP 12HR 5 20 10 0 10
QPF 12HR 0 0.00-0.09 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S
TSTMS S
HEAT INDEX 80 87102102 92 81 87 97100 92 82
MAX HEAT 86 105 107 91 99 102 90
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE 09/20 MON 09/21/26 TUE 09/22/26 WED 09/23/26 THU 09/24/26
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 68 81 61 74 57 77 59 80
TEMP 89 83 71 68 78 75 65 62 72 70 61 57 74 72 63 59 77 74
DEWPT 67 68 69 67 70 68 64 61 64 61 59 56 62 61 60 58 64 63
PWIND DIR W NE NE N NE NE NE NE NE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC B1 B1 B2 B2 B1 B1 B2 B1 SC SC SC SC SC SC SC SC
POP 12HR 20 60 60 20 20 5 5 10 10
RAIN SHWRS S S C L C L S S S S
TSTMS S C S C
MOZ042-180900-
AUDRAIN MO-
INCLUDING THE CITY OF MEXICO
946 PM CDT THU SEP 17 2026
DATE 09/17/26 FRI 09/18/26 SAT 09/19/26 SUN
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 71 91 71 92 69
TEMP 76 76 74 72 79 89 91 85 78 75 73 72 83 90 92 86 78 74 71 69
DEWPT 72 73 73 71 74 74 72 74 72 70 68 66 68 67 67 68 67 66 65 64
RH 87 90 97 97 85 61 54 70 82 84 84 81 61 47 44 55 69 76 81 84
WIND DIR N NE NE E SE SE S SE SE S S SW SW SW SW SW S W NW NW
WIND SPD 2 4 4 4 4 4 4 3 5 6 8 6 8 10 9 3 2 3 3 2
WIND GUST 14 16 18
CLOUDS CL FW FW SC SC FW SC FW FW FW SC B2 B2 B1 SC SC SC SC B1 B2
POP 12HR 10 10 5 5 20
QPF 12HR 0 0 0 0 0.01
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S C
TSTMS S S S
HEAT INDEX 80 98 99 92 86 94 96 89
MAX HEAT 101 102 91 95 97 89
DATE 09/20 MON 09/21/26 TUE 09/22/26 WED 09/23/26 THU 09/24/26
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 85 64 74 57 69 53 72 56 76
TEMP 83 77 68 65 72 69 62 59 67 65 57 54 70 68 59 57 74 71
DEWPT 69 70 68 65 68 67 62 58 61 61 57 53 60 62 58 56 63 64
PWIND DIR NW NE N NE NE NE NE NE NE
WIND CHAR LT LT LT LT GN LT LT LT LT
AVG CLOUDS B1 B1 B1 B2 OV B2 B2 B2 B2 B1 B1 SC B1 SC SC SC B1 SC
POP 12HR 40 60 60 20 10 5 5 5 10
RAIN SHWRS C C C L L C S S S S
TSTMS S C C S C
MOZ050-180900-
CALLAWAY MO-
INCLUDING THE CITY OF FULTON
946 PM CDT THU SEP 17 2026
DATE 09/17/26 FRI 09/18/26 SAT 09/19/26 SUN
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 72 94 71 94 70
TEMP 79 76 74 72 80 91 93 86 79 76 73 72 83 92 94 87 79 75 72 70
DEWPT 73 72 72 71 74 73 72 73 72 70 68 65 67 67 66 66 66 65 64 64
RH 82 87 93 97 82 56 51 65 79 82 84 79 59 44 40 50 64 71 76 81
WIND DIR E NE E E SE S S SE S S S SW SW SW SW S S SW W NW
WIND SPD 2 3 3 3 3 4 4 3 4 5 5 5 6 8 6 2 2 3 3 2
WIND GUST 14
CLOUDS CL CL FW FW SC CL SC FW CL FW B1 B2 B1 B2 SC SC FW SC B1 B1
POP 12HR 5 20 5 0 10
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S C
TSTMS S S
HEAT INDEX 84100101 92 86 95 97 90
MAX HEAT 88 105 107 91 100 103 90
HEAT Y Y Y Y Y Y Y Y
DATE 09/20 MON 09/21/26 TUE 09/22/26 WED 09/23/26 THU 09/24/26
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 88 66 77 60 72 55 75 57 78
TEMP 86 80 69 67 75 72 63 60 69 68 59 56 72 70 61 58 75 72
DEWPT 68 69 69 66 70 67 63 59 63 60 58 55 61 61 59 57 64 63
PWIND DIR NW NE N NE NE NE NE NE NE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B1 B1 B1 B2 B2 B2 B2 B1 B2 B1 SC SC SC SC SC SC B1 SC
POP 12HR 30 70 60 20 20 5 5 10 20
RAIN SHWRS C C L L L C S S S S
TSTMS S C C S C
MOZ047-048-180900-
MONITEAU MO-COLE MO-
INCLUDING THE CITY OF JEFFERSON CITY
946 PM CDT THU SEP 17 2026
DATE 09/17/26 FRI 09/18/26 SAT 09/19/26 SUN
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 73 98 74 98 72
TEMP 80 77 75 73 82 94 96 90 80 78 76 74 85 94 97 91 80 77 74 72
DEWPT 72 72 72 71 73 72 71 71 71 69 67 64 66 67 66 66 66 64 64 64
RH 77 85 90 93 74 49 45 54 74 74 74 71 53 41 36 44 62 64 71 76
WIND DIR S NE E E SE S S SE SE S S SW SW SW SW SW S SW W NW
WIND SPD 3 2 2 3 3 5 4 4 5 4 5 5 6 9 5 2 1 2 2 2
WIND GUST 16
CLOUDS FW CL CL FW CL CL SC FW CL SC B1 B1 B1 B1 FW FW FW SC B1 B1
POP 12HR 5 20 5 0 10
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S C
TSTMS S
HEAT INDEX 83 88102104 96 83 87 98101 94 82
MAX HEAT 90 105 107 95 100 104 92
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE 09/20 MON 09/21/26 TUE 09/22/26 WED 09/23/26 THU 09/24/26
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 68 81 62 75 57 78 60 81
TEMP 88 82 70 68 77 75 65 62 72 70 61 58 74 73 63 61 78 75
DEWPT 68 69 69 68 70 68 65 61 64 62 60 57 62 62 61 59 64 64
PWIND DIR NW NE N N NE NE NE E NE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B1 SC B1 B2 B2 B2 B1 B1 B2 B1 SC SC SC SC SC SC SC SC
POP 12HR 30 70 60 20 20 5 5 10 20
RAIN SHWRS C C L L L C S S S S S
TSTMS S C C S C
MOZ041-180900-
BOONE MO-
INCLUDING THE CITY OF COLUMBIA
946 PM CDT THU SEP 17 2026
DATE 09/17/26 FRI 09/18/26 SAT 09/19/26 SUN
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 73 94 73 94 71
TEMP 80 77 75 73 81 92 93 87 80 77 75 73 84 91 94 88 80 76 73 71
DEWPT 73 73 73 72 74 73 72 73 72 70 68 65 67 68 67 68 67 65 65 65
RH 79 87 94 97 79 54 51 63 77 79 79 76 57 47 41 52 65 69 76 81
WIND DIR E NE NE E SE S S SE SE S S S SW SW SW SW SW W W N
WIND SPD 2 4 4 4 4 5 4 3 6 5 6 5 6 9 8 3 3 3 3 2
WIND GUST 14 16
CLOUDS CL CL FW FW SC CL SC FW CL SC B1 B2 OV B1 SC SC FW SC B1 B1
POP 12HR 5 10 5 5 20
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S C
TSTMS S
HEAT INDEX 83 86101101 95 83 87 95 98 92 82
MAX HEAT 92 105 107 94 100 103 91
HEAT Y Y Y Y Y Y Y Y
DATE 09/20 MON 09/21/26 TUE 09/22/26 WED 09/23/26 THU 09/24/26
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 87 66 77 60 71 56 74 58 78
TEMP 85 79 69 67 74 71 63 61 69 67 60 56 72 70 62 59 75 73
DEWPT 69 70 69 67 69 67 63 59 63 61 58 55 61 62 60 58 64 64
PWIND DIR NW NE N NE NE NE NE E NE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B1 B1 B1 B2 B2 B2 B2 B1 B2 B1 B1 SC B1 SC SC SC B1 SC
POP 12HR 30 70 60 20 20 5 5 10 20
RAIN SHWRS C C L L L C S S S S S
TSTMS S C C S C
ILZ095>097-MOZ018-019-026-027-034>036-180900-
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
946 PM CDT THU SEP 17 2026
DATE 09/17/26 FRI 09/18/26 SAT 09/19/26 SUN
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 71 90 72 91 70
TEMP 78 75 73 72 77 86 89 84 77 76 74 72 82 89 91 85 77 74 72 70
DEWPT 74 74 72 71 74 75 75 75 74 72 70 68 71 70 70 71 70 69 68 67
RH 88 97 97 97 90 70 64 74 90 87 87 87 69 54 50 63 79 84 87 90
WIND DIR N NE NE NE E E SE E SE SE S S SW SW SW S SW W NW NW
WIND SPD 4 5 5 5 6 6 5 5 8 8 8 6 8 9 6 2 2 2 2 2
WIND GUST 16 18 17 18 17 20 19 17
CLOUDS FW SC B1 B2 B2 SC FW FW SC FW B1 B2 OV B2 B1 SC SC B1 B1 B2
POP 12HR 10 30 5 10 50
QPF 12HR 0.00-0.12 0.00-0.14 0 0 0.00-0.20
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C S S S C C C C C
TSTMS C S S S C S S S
OBVIS PF
HEAT INDEX 80 96100 92 86 95 97 91
MAX HEAT 90 103 106 94 84 102 102 91
DATE 09/20 MON 09/21/26 TUE 09/22/26 WED 09/23/26 THU 09/24/26
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 82 64 71 58 67 54 71 57 75
TEMP 80 75 67 65 70 68 62 59 65 63 57 55 69 67 60 58 72 70
DEWPT 71 71 67 65 67 66 61 57 60 60 56 53 60 62 58 57 63 64
PWIND DIR N NE NE NE NE NE NE NE NE
WIND CHAR LT LT LT LT GN LT LT LT LT
AVG CLOUDS B2 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 SC B1 B1 SC SC B1 B1
POP 12HR 60 60 60 20 20 0 5 5 10
RAIN SHWRS C L L L L C S S S S
TSTMS C C C S S S
ILZ069-070-074-180900-
CLINTON IL-MARION IL-WASHINGTON IL-
INCLUDING THE CITIES OF CENTRALIA AND SALEM
946 PM CDT THU SEP 17 2026
DATE 09/17/26 FRI 09/18/26 SAT 09/19/26 SUN
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 73 95 72 96 72
TEMP 80 77 75 73 83 93 95 88 78 75 73 72 85 93 96 90 79 77 74 72
DEWPT 72 71 71 72 74 73 72 73 73 73 72 70 70 67 65 67 66 64 63 63
RH 77 82 87 97 74 52 48 61 85 94 97 93 61 43 36 47 64 64 69 73
WIND DIR SW SW W N NE N N NE E E SE S SW W W SW S S SW W
WIND SPD 2 2 2 2 3 3 3 3 6 5 5 5 6 6 5 1 2 3 3 2
WIND GUST 14 17
CLOUDS CL FW FW CL FW CL FW FW SC SC CL FW CL FW SC B1 SC SC SC SC
POP 12HR 5 10 10 5 5
QPF 12HR 0 0 0.00-0.13 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S
TSTMS
HEAT INDEX 83 89102103 95 89 98 99 93 80
MAX HEAT 89 106 107 95 100 102 92 83
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE 09/20 MON 09/21/26 TUE 09/22/26 WED 09/23/26 THU 09/24/26
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 68 86 62 78 57 79 58 81
TEMP 91 86 73 69 84 79 67 62 75 73 62 58 76 74 63 59 79 76
DEWPT 66 68 68 67 68 68 65 62 62 61 59 58 60 61 60 59 61 62
PWIND DIR NW NE NE NE NE NE NE NE NE
WIND CHAR LT LT LT LT GN LT LT LT LT
AVG CLOUDS SC SC SC B1 B2 B1 B1 SC B1 SC B1 SC SC SC SC SC SC SC
POP 12HR 20 20 40 30 10 5 5 5 5
RAIN SHWRS S S S S C C S
TSTMS S S C C
MOZ074-084-085-099-180900-
SAINT FRANCOIS MO-IRON MO-MADISON MO-REYNOLDS MO-
INCLUDING THE CITY OF FARMINGTON
946 PM CDT THU SEP 17 2026
DATE 09/17/26 FRI 09/18/26 SAT 09/19/26 SUN
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 73 96 71 96 70
TEMP 80 77 75 73 85 95 95 85 78 75 73 71 85 94 96 88 79 75 72 70
DEWPT 71 70 69 68 70 69 69 70 69 67 65 63 66 64 63 62 62 61 60 59
RH 74 79 82 84 61 43 43 61 74 76 76 76 53 37 34 42 56 62 66 68
WIND DIR NW SW SW W W W SW S SE S S SW SW W SW S SW SW SW W
WIND SPD 2 2 2 2 4 4 3 3 3 3 3 3 5 5 3 2 2 2 2 1
WIND GUST 13 12 12 13 12
CLOUDS FW FW CL CL CL FW SC B1 SC FW CL CL CL FW SC SC FW FW FW SC
POP 12HR 5 20 10 0 0
QPF 12HR 0 0.00-0.10 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S
TSTMS S
HEAT INDEX 82 89101101 90 87 96 98 89
MAX HEAT 89 106 109 92 101 102 90
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE 09/20 MON 09/21/26 TUE 09/22/26 WED 09/23/26 THU 09/24/26
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 68 88 62 79 57 79 58 81
TEMP 93 87 73 69 85 79 68 63 76 73 63 58 77 74 63 58 79 75
DEWPT 63 64 66 65 69 70 66 62 66 64 60 57 62 62 60 58 63 63
PWIND DIR W NE N N N N NE NE NE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC SC B1 B1 B1 SC B1 SC SC SC SC FW SC SC SC SC
POP 12HR 10 10 60 10 10 5 5 5 10
RAIN SHWRS S C L S
TSTMS S C S
MOZ060-180900-
WARREN MO-
946 PM CDT THU SEP 17 2026
DATE 09/17/26 FRI 09/18/26 SAT 09/19/26 SUN
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 72 94 71 95 70
TEMP 80 77 74 73 81 92 94 88 79 76 74 72 83 92 95 89 79 76 72 70
DEWPT 74 72 72 72 74 75 73 74 73 71 70 66 69 68 67 67 67 65 64 64
RH 82 85 93 97 79 58 51 63 82 85 87 81 63 46 40 48 67 69 76 81
WIND DIR SW NW NE NE E SE S SE SE SE S S W W SW S S SW W W
WIND SPD 2 2 2 2 3 2 2 3 4 4 4 4 6 6 3 0 0 1 2 1
CLOUDS CL FW FW SC SC FW FW SC CL CL FW FW B2 OV B1 SC SC SC SC B1
POP 12HR 10 10 10 0 10
QPF 12HR 0 0.01 0 0 0.01
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C
TSTMS
HEAT INDEX 85 86102104 96 81 87 97 99 92 81
MAX HEAT 92 106 109 92 99 102 91
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE 09/20 MON 09/21/26 TUE 09/22/26 WED 09/23/26 THU 09/24/26
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 66 80 60 73 56 76 58 79
TEMP 88 83 71 67 77 74 64 61 71 70 60 56 73 72 61 58 76 74
DEWPT 69 69 69 67 70 67 64 60 63 60 59 55 61 60 60 58 64 62
PWIND DIR NW NE NE NE NE NE NE NE NE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B1 B1 B1 B2 B2 B2 B1 B1 B2 B1 B1 SC SC SC SC SC B1 SC
POP 12HR 30 50 60 20 20 0 5 5 10
RAIN SHWRS C S C C L C S S
TSTMS S C C S C
MOZ051-052-180900-
MONTGOMERY MO-LINCOLN MO-
946 PM CDT THU SEP 17 2026
DATE 09/17/26 FRI 09/18/26 SAT 09/19/26 SUN
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 72 93 71 94 70
TEMP 79 77 74 72 80 91 93 87 79 76 74 72 84 92 94 88 79 76 72 70
DEWPT 73 73 73 72 74 75 73 73 73 72 70 67 69 68 67 67 67 66 65 65
RH 82 87 97100 82 60 52 63 82 87 87 84 61 46 41 50 67 71 79 84
WIND DIR SW N NE NE E SE S SE SE SE S S W SW SW S S SW NW NW
WIND SPD 2 3 3 3 3 3 3 3 5 5 5 5 8 8 5 1 1 2 2 2
WIND GUST 14 13
CLOUDS CL CL FW FW SC FW FW SC FW CL SC B1 B2 B2 B1 SC SC SC B1 B1
POP 12HR 10 10 5 0 20
QPF 12HR 0 0.01 0 0 0.01
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S C
TSTMS S
HEAT INDEX 81 83101102 94 81 87 97 98 92 80
MAX HEAT 87 106 107 95 100 102 92
HEAT Y Y Y Y Y Y Y Y
DATE 09/20 MON 09/21/26 TUE 09/22/26 WED 09/23/26 THU 09/24/26
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 89 65 78 59 72 55 75 57 78
TEMP 87 81 70 67 76 73 63 60 70 69 59 56 73 71 61 58 76 73
DEWPT 69 69 69 66 69 67 63 59 62 59 58 55 60 60 59 57 63 62
PWIND DIR NW NE NE NE NE NE NE NE NE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B1 B1 B1 B2 B2 B2 B2 B1 B2 B1 B1 SC B1 SC SC SC B1 SC
POP 12HR 30 60 60 20 10 5 5 5 10
RAIN SHWRS C C C L L C S S S
TSTMS S C C S C
ILZ058-059-098-099-180900-
GREENE IL-MACOUPIN IL-CALHOUN IL-JERSEY IL-
946 PM CDT THU SEP 17 2026
DATE 09/17/26 FRI 09/18/26 SAT 09/19/26 SUN
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 72 93 71 95 70
TEMP 78 76 74 72 80 91 92 86 77 75 73 72 84 93 94 88 79 75 72 70
DEWPT 72 73 72 71 73 73 72 73 73 71 70 69 69 67 66 67 67 66 65 65
RH 82 90 93 97 79 56 52 65 87 87 90 90 61 43 40 50 67 74 79 84
WIND DIR S N NE NE E NE NE E E SE SE S SW W SW S S S W NW
WIND SPD 2 3 4 5 5 4 4 5 8 8 6 6 6 6 6 3 2 3 3 2
WIND GUST 16 16 16 18 18 17
CLOUDS FW CL SC SC B1 FW FW FW FW FW FW SC SC B1 B1 B1 SC SC SC B1
POP 12HR 10 10 10 5 20
QPF 12HR 0.00-0.07 0.00-0.09 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S S
TSTMS S S
HEAT INDEX 83 99100 92 88 97 98 91
MAX HEAT 89 105 106 94 101 102 92
HEAT Y Y Y Y Y Y Y Y
DATE 09/20 MON 09/21/26 TUE 09/22/26 WED 09/23/26 THU 09/24/26
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 65 79 59 73 55 76 57 79
TEMP 88 82 69 66 77 73 63 60 71 69 59 55 74 71 61 57 77 74
DEWPT 67 68 68 66 66 65 62 58 58 58 57 54 58 59 58 57 60 61
PWIND DIR N NE NE NE NE NE NE NE NE
WIND CHAR LT LT LT LT GN LT LT LT LT
AVG CLOUDS B1 B1 B1 B2 B2 B2 B1 B1 B1 B1 B1 SC B1 SC SC SC SC SC
POP 12HR 30 50 60 20 10 5 5 5 10
RAIN SHWRS S C C C L C S S S S
TSTMS C C C S C S
ILZ060-065-180900-
MONTGOMERY IL-FAYETTE IL-
INCLUDING THE CITIES OF LITCHFIELD AND VANDALIA
946 PM CDT THU SEP 17 2026
DATE 09/17/26 FRI 09/18/26 SAT 09/19/26 SUN
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 71 93 70 95 70
TEMP 78 76 73 72 81 90 92 86 76 73 72 70 83 93 95 88 78 75 72 71
DEWPT 71 72 72 71 73 72 71 72 73 71 71 70 70 68 65 67 66 65 64 64
RH 79 87 97 97 77 56 51 63 90 93 97100 65 44 37 50 67 71 76 79
WIND DIR W NW NE NE NE NE NE NE E SE SE S SW W W SW S S SW W
WIND SPD 2 3 3 5 5 4 4 5 8 8 6 6 6 6 6 2 2 2 3 2
WIND GUST 16 16 18 18 17
CLOUDS FW FW FW SC B1 SC FW FW SC SC SC SC CL SC B1 B1 SC SC SC SC
POP 12HR 5 20 10 5 10
QPF 12HR 0 0.00-0.06 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S
TSTMS S
HEAT INDEX 85 98100 92 88 97 97 91
MAX HEAT 88 102 104 94 99 100 91 83
HEAT Y Y Y Y Y Y Y Y
DATE 09/20 MON 09/21/26 TUE 09/22/26 WED 09/23/26 THU 09/24/26
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 66 82 59 75 55 77 56 79
TEMP 89 83 70 67 80 75 64 60 73 70 60 56 74 72 61 57 77 74
DEWPT 66 67 67 65 66 65 62 59 59 58 57 55 58 58 58 57 59 60
PWIND DIR NW NE NE NE NE NE NE NE NE
WIND CHAR LT LT LT LT GN LT LT LT LT
AVG CLOUDS SC SC SC B1 B2 B1 B1 SC B1 B1 B1 SC SC SC SC SC SC SC
POP 12HR 20 40 50 20 10 5 5 5 5
RAIN SHWRS S S S C C C S S
TSTMS S S C S C S
ILZ064-180900-
BOND IL-
946 PM CDT THU SEP 17 2026
DATE 09/17/26 FRI 09/18/26 SAT 09/19/26 SUN
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 72 94 71 95 71
TEMP 79 77 74 73 82 92 93 86 78 74 73 71 84 93 95 89 79 76 73 71
DEWPT 72 72 72 72 74 74 72 73 73 72 71 70 71 68 66 67 67 65 64 64
RH 79 85 93 97 77 56 51 65 85 93 93 97 65 44 39 48 67 69 73 79
WIND DIR SW NW N NE E NE NE NE E E SE S SW W W SW S S SW W
WIND SPD 2 2 2 4 5 3 3 4 8 6 5 5 6 6 6 1 1 2 3 2
WIND GUST 16 18
CLOUDS CL FW CL FW SC FW FW FW SC SC FW SC CL SC B1 B1 SC SC SC SC
POP 12HR 5 20 10 5 10
QPF 12HR 0 0.00-0.05 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S
TSTMS S
HEAT INDEX 80 88102102 93 89 98 98 92 80
MAX HEAT 86 105 106 91 99 101 91
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE 09/20 MON 09/21/26 TUE 09/22/26 WED 09/23/26 THU 09/24/26
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 67 83 60 76 56 78 57 80
TEMP 90 84 71 68 81 77 65 61 74 71 61 57 75 73 62 58 78 75
DEWPT 67 68 68 66 68 67 63 60 61 60 58 56 59 60 59 58 61 61
PWIND DIR NW NE NE NE NE NE NE NE NE
WIND CHAR LT LT LT LT GN LT LT LT LT
AVG CLOUDS SC SC SC B1 B2 B1 B1 SC B1 B1 B1 SC SC SC SC SC SC SC
POP 12HR 20 30 50 30 20 5 5 5 5
RAIN SHWRS S S C C C C S S
TSTMS S C S C S
ILZ079-MOZ075-180900-
RANDOLPH IL-SAINTE GENEVIEVE MO-
INCLUDING THE CITIES OF CHESTER AND SPARTA
946 PM CDT THU SEP 17 2026
DATE 09/17/26 FRI 09/18/26 SAT 09/19/26 SUN
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 73 96 72 97 72
TEMP 80 78 76 74 84 94 95 89 79 76 74 72 85 95 97 90 80 77 74 72
DEWPT 72 71 70 70 72 72 72 72 72 70 68 66 69 66 65 65 64 62 61 60
RH 77 79 82 87 67 49 48 57 79 82 82 81 59 39 35 44 58 60 64 66
WIND DIR SW SW W W W W W SE SE SE S S SW W SW S S SW SW W
WIND SPD 1 2 2 2 2 4 4 3 4 4 4 4 5 6 4 2 4 3 4 3
CLOUDS FW FW CL CL CL CL FW B2 B1 FW FW FW CL SC SC SC FW FW FW SC
POP 12HR 5 20 10 0 0
QPF 12HR 0 0.00-0.09 0.00-0.07 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S
TSTMS S
HEAT INDEX 84 89103104 96 81 89 98100 93 82
MAX HEAT 90 107 109 94 101 104 92
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE 09/20 MON 09/21/26 TUE 09/22/26 WED 09/23/26 THU 09/24/26
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 69 87 62 78 58 79 58 81
TEMP 92 88 74 69 85 81 68 63 76 74 63 58 77 75 63 59 79 77
DEWPT 65 67 67 67 70 70 66 62 65 63 60 57 62 62 61 59 63 63
PWIND DIR NW NE N N N N N NE NE
WIND CHAR LT LT LT LT GN LT LT LT LT
AVG CLOUDS SC SC SC B1 B1 B1 B1 SC B1 SC SC SC SC SC SC SC SC SC
POP 12HR 10 30 50 30 10 5 5 0 5
RAIN SHWRS C S C C
TSTMS S C S
MOZ059-062-072-073-180900-
GASCONADE MO-FRANKLIN MO-CRAWFORD MO-WASHINGTON MO-
INCLUDING THE CITIES OF WASHINGTON, UNION, AND SULLIVAN
946 PM CDT THU SEP 17 2026
DATE 09/17/26 FRI 09/18/26 SAT 09/19/26 SUN
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 72 96 71 96 71
TEMP 78 76 74 73 83 94 94 85 78 76 73 72 85 93 96 88 79 76 73 71
DEWPT 73 71 70 70 73 72 72 73 71 68 66 63 67 66 66 65 64 62 61 60
RH 85 85 87 90 72 49 49 67 79 76 79 73 55 41 38 47 60 62 66 68
WIND DIR S SW SW S SW W SW SE SE S S SW W W SW S S SW SW W
WIND SPD 1 2 2 2 3 3 3 3 4 4 4 4 6 6 4 1 2 2 3 2
WIND GUST 12 12 12
CLOUDS FW FW CL CL CL FW SC B1 FW FW FW FW SC B1 SC SC FW FW SC SC
POP 12HR 5 20 10 0 10
QPF 12HR 0 0.00-0.10 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S
TSTMS S
HEAT INDEX 80 89102102 92 88 97 99 91 80
MAX HEAT 92 106 109 91 100 102 91
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE 09/20 MON 09/21/26 TUE 09/22/26 WED 09/23/26 THU 09/24/26
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 67 83 61 75 56 77 57 80
TEMP 90 84 72 68 80 76 65 61 72 70 61 56 74 72 62 58 77 74
DEWPT 67 67 68 66 71 69 65 61 65 63 59 56 63 62 60 57 64 64
PWIND DIR NW NE NE N N NE NE NE NE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC B1 B2 B1 B1 B1 B2 B1 SC SC SC SC SC SC SC SC
POP 12HR 20 40 60 10 20 5 5 5 10
RAIN SHWRS S S C C C L S S S S S
TSTMS S S S C S
ILZ102-MOZ065-180900-
MONROE IL-JEFFERSON MO-
946 PM CDT THU SEP 17 2026
DATE 09/17/26 FRI 09/18/26 SAT 09/19/26 SUN
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 73 96 72 97 72
TEMP 80 77 75 73 84 94 96 88 80 76 74 72 86 95 97 91 80 77 74 72
DEWPT 73 72 71 71 74 74 73 73 72 70 68 66 70 68 67 67 65 63 61 61
RH 79 85 87 93 72 53 48 61 77 82 82 81 59 42 38 45 60 62 64 68
WIND DIR W W W W SW N SE SE SE SE S S W W SW S S SW SW W
WIND SPD 1 2 1 2 2 3 3 4 4 4 4 4 5 5 3 2 3 3 3 3
CLOUDS FW FW CL CL CL FW FW B1 B1 CL FW FW FW B1 B1 SC SC SC SC SC
POP 12HR 5 20 10 0 5
QPF 12HR 0 0.00-0.10 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S
TSTMS S
HEAT INDEX 84 91105105 96 82 91 99101 94 82
MAX HEAT 95 109 110 93 102 105 93
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE 09/20 MON 09/21/26 TUE 09/22/26 WED 09/23/26 THU 09/24/26
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 68 85 61 76 57 78 58 81
TEMP 92 87 73 69 83 79 66 62 74 73 62 57 76 74 63 59 78 76
DEWPT 67 68 68 67 71 69 65 61 65 63 59 56 63 62 60 58 64 63
PWIND DIR NW NE N N N NE NE NE NE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC B1 B2 B2 B1 SC B1 B1 SC SC SC SC SC SC SC SC
POP 12HR 20 40 60 30 10 5 5 5 10
RAIN SHWRS S S C C L C
TSTMS S C S
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page