315
FOUS53 KLSX 181941
AFMLSX
AREA FORECAST MATRICES
NATIONAL WEATHER SERVICE SAINT LOUIS MO
241 PM CDT MON MAY 18 2026
ILZ100-101-MOZ061-063-064-190900-
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
241 PM CDT MON MAY 18 2026
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU
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 67 81 56 69 51
TEMP 74 73 69 69 68 68 75 78 77 72 66 63 59 57 61 65 68 68 62 59 54 52
DEWPT 69 67 66 66 66 66 68 70 70 66 64 61 56 52 52 53 54 52 53 50 46 45
RH 84 81 90 90 93 93 79 76 79 81 93 93 90 83 72 65 61 57 72 72 74 77
WIND DIR S S S S S S S SW W NW N N N N N N N NE NE NE NE NE
WIND SPD 13 13 13 12 11 10 13 12 10 8 6 6 9 10 9 8 8 6 5 6 6 6
WIND GUST 27 26 27 26 25 23 24 23
CLOUDS B2 B2 B1 SC B1 B1 B2 B1 B2 B2 OV B2 B2 SC B2 B2 B2 B1 B1 B1 B1 B2
POP 12HR 40 80 60 20 10
QPF 12HR 0.09-0.33 0.15-0.56 0.04-0.40 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS D C S C C D L L C L L S S S S
TSTMS C C S S C L L C C S
FLOOD A A A A A A A
DATE 05/21 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26 MON 05/25/26
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 73 57 75 60 80 61 83 64 86
TEMP 68 71 63 58 69 74 65 61 76 79 67 62 79 81 69 65 81 84
DEWPT 55 56 56 56 62 63 63 60 64 64 64 61 64 65 65 63 67 67
PWIND DIR NE E E NW SW S S SE SE
WIND CHAR GN GN LT LT LT LT LT LT LT
AVG CLOUDS B1 B1 B2 B2 B2 B2 B1 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1
POP 12HR 10 50 70 40 30 20 30 30 40
RAIN SHWRS S L L L C S S C S S C C S S C C
TSTMS S S C S S S S S S S
MOZ042-049-050-190900-
AUDRAIN MO-OSAGE MO-CALLAWAY MO-
INCLUDING THE CITIES OF MEXICO AND FULTON
241 PM CDT MON MAY 18 2026
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU
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 66 75 51 66 49
TEMP 73 73 68 69 68 67 72 71 69 66 61 57 54 52 57 62 65 65 58 56 52 50
DEWPT 69 67 66 65 65 65 67 67 64 59 57 53 50 48 48 49 50 50 50 49 47 44
RH 87 81 93 87 90 93 84 87 84 78 87 86 86 86 72 62 58 58 75 77 83 80
WIND DIR S S S S S S SW W NW N N N N N NE NE NE NE NE NE NE NE
WIND SPD 14 14 13 13 11 11 12 11 10 8 6 6 9 9 9 8 8 8 5 5 6 8
WIND GUST 31 32 29 29 26 26 26 21 20 19 17 18 20 20 20 18 18 19
CLOUDS B2 B2 SC B1 B2 B2 B2 OV B2 OV B2 B1 B1 B1 B2 B1 B1 B1 B1 B1 B2 B2
POP 12HR 80 80 30 10 5
QPF 12HR 0.47-1.39 0.04-0.27 0.00-0.11 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS D S C L D C L L S S C C S S S S
TSTMS L S C C S C C C S S
FLOOD A A A A A A A
DATE 05/21 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26 MON 05/25/26
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 70 55 72 56 79 57 82 61 85
TEMP 65 70 61 56 67 71 61 57 75 77 63 59 79 80 66 63 80 82
DEWPT 53 56 56 55 62 62 60 57 62 63 61 58 64 65 62 61 66 67
PWIND DIR E E E NE SW E SE SE SE
WIND CHAR GN GN LT LT LT LT LT LT LT
AVG CLOUDS B2 B2 B2 OV B2 B2 B1 B2 B2 B1 SC B1 SC B1 B1 B1 B1 B1
POP 12HR 10 60 70 30 20 20 30 20 30
RAIN SHWRS C L L L C C S S S S C S S S C
TSTMS S S C C S S S S S S
MOZ041-047-048-190900-
BOONE MO-MONITEAU MO-COLE MO-
INCLUDING THE CITIES OF COLUMBIA AND JEFFERSON CITY
241 PM CDT MON MAY 18 2026
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU
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 65 74 52 67 51
TEMP 72 72 68 68 67 67 71 68 67 65 61 58 54 52 58 63 66 65 59 56 54 52
DEWPT 69 68 66 65 65 65 67 65 61 57 56 53 49 47 47 49 50 49 50 50 48 46
RH 90 87 93 90 93 93 87 90 81 75 84 83 83 83 67 60 56 56 72 80 80 80
WIND DIR S S S S S S SW NW NW N N N N NE NE NE NE NE NE NE E E
WIND SPD 13 14 13 13 9 8 9 9 9 8 5 5 6 8 8 8 6 6 4 4 5 8
WIND GUST 29 31 29 29 24 25 24 20 19 18 17 17 19 20 20 18 17 17 14 14 18 19
CLOUDS B2 B1 B1 B2 B2 B2 B2 OV B2 B2 B2 B2 B1 B1 B2 B1 B1 B1 B1 B1 B2 B2
POP 12HR 80 80 30 10 5
QPF 12HR 0.84-1.43 0.05-0.22 0.02 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L S S C D D C C C S S C C S S
TSTMS C S S C C S C C C S
FLOOD A A A A A A A
DATE 05/21 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26 MON 05/25/26
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 71 56 74 57 80 58 84 62 86
TEMP 66 70 62 57 68 72 62 58 76 78 63 60 80 81 66 64 81 83
DEWPT 53 56 57 57 62 62 59 58 63 63 60 59 64 65 62 61 67 67
PWIND DIR E E E E SW E SE SE SE
WIND CHAR GN LT LT LT LT LT LT LT LT
AVG CLOUDS B2 B2 B2 OV B2 B2 B1 B2 B2 B1 SC B1 SC B1 B1 B1 B1 B1
POP 12HR 10 60 70 40 20 20 30 20 30
RAIN SHWRS S C L L C C C S S S C S S S C
TSTMS S C C C S S S S S S
ILZ095>097-MOZ018-019-026-027-190900-
ADAMS IL-BROWN IL-PIKE IL-KNOX MO-LEWIS MO-SHELBY MO-MARION MO-
INCLUDING THE CITIES OF QUINCY, MOUNT STERLING, PITTSFIELD,
AND HANNIBAL
241 PM CDT MON MAY 18 2026
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU
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 65 73 50 66 47
TEMP 75 73 70 70 68 67 70 68 67 65 59 56 52 51 57 63 66 65 58 54 50 48
DEWPT 68 67 65 65 64 65 66 63 59 55 52 49 46 45 46 48 49 48 47 45 41 40
RH 79 81 84 84 87 93 87 84 75 70 78 77 80 80 67 58 54 54 67 71 71 74
WIND DIR S S S S SW S SW NW NW NW N N N N NE NE NE NE NE NE NE NE
WIND SPD 16 14 13 13 11 13 12 11 11 9 6 8 9 9 9 9 8 6 5 6 8 8
WIND GUST 34 32 28 28 27 29 26 23 23 21 18 19 20 20 20 18 16 19 19 20
CLOUDS B2 B2 B1 B2 OV B2 B2 B2 B2 B1 B2 B1 SC SC SC B1 SC SC SC SC SC B1
POP 12HR 80 50 10 0 5
QPF 12HR 0.26-1.04 0.02-0.30 0.00-0.09 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C D D C S L S S S
TSTMS C C C C S S C S S
DATE 05/21 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26 MON 05/25/26
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 70 53 69 55 78 57 82 61 85
TEMP 66 68 60 54 64 69 60 57 73 76 63 59 78 80 66 63 81 82
DEWPT 51 53 51 52 58 59 56 56 61 62 58 58 63 64 60 60 65 66
PWIND DIR E E E NE S SW S SE SE
WIND CHAR GN GN GN LT LT LT LT LT LT
AVG CLOUDS B1 B1 B2 OV OV B2 B2 B2 B2 B1 B1 B1 B1 SC B1 B1 B1 B1
POP 12HR 5 50 70 30 20 20 20 20 20
RAIN SHWRS S C L L C S S S S S S S S S
TSTMS S C S S S S S S S
MOZ034>036-190900-
MONROE MO-RALLS MO-PIKE MO-
INCLUDING THE CITY OF BOWLING GREEN
241 PM CDT MON MAY 18 2026
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU
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 65 74 51 66 48
TEMP 75 74 70 70 68 67 72 70 68 66 60 57 53 52 57 63 66 66 59 55 51 49
DEWPT 68 67 65 65 65 65 66 64 60 56 54 51 47 46 46 48 49 49 49 47 43 41
RH 79 79 84 84 90 93 81 81 76 70 81 80 80 80 67 58 54 54 69 74 74 74
WIND DIR S S S S SW S SW W NW N N N N N NE NE NE NE NE NE NE NE
WIND SPD 16 14 13 13 11 12 12 11 10 9 6 6 8 9 9 8 8 6 4 5 6 8
WIND GUST 33 32 29 29 25 27 27 23 21 20 18 18 19 20 19 18 17 14 16 18 19
CLOUDS B2 B2 SC B2 OV OV B2 B2 B2 B2 B1 B1 B1 SC B1 B1 B1 SC SC B1 B1 B1
POP 12HR 80 60 20 5 5
QPF 12HR 0.44-1.08 0.05-0.33 0.00-0.15 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L S S C D L S L C S S S S
TSTMS L S S C C S S C C S
FLOOD A A A A A A A
DATE 05/21 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26 MON 05/25/26
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 70 54 69 56 78 58 81 62 84
TEMP 65 69 60 55 65 69 61 57 74 76 63 59 79 80 66 63 81 82
DEWPT 52 54 53 54 59 60 58 56 61 62 59 58 63 64 61 61 65 66
PWIND DIR E E E NE SW SW SE SE SE
WIND CHAR GN GN LT LT LT LT LT LT LT
AVG CLOUDS B1 B1 B2 OV B2 B2 B2 B2 B2 B1 B1 B1 B1 SC B1 B1 B1 B1
POP 12HR 10 50 70 30 20 20 20 30 30
RAIN SHWRS S C L C C C S S S S S S S C
TSTMS S S C S S S S S S S
ILZ069-070-074-190900-
CLINTON IL-MARION IL-WASHINGTON IL-
INCLUDING THE CITIES OF CENTRALIA AND SALEM
241 PM CDT MON MAY 18 2026
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU
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 68 83 59 69 52
TEMP 78 77 72 71 70 70 77 81 79 75 70 66 63 60 63 66 68 68 63 58 54 53
DEWPT 69 67 66 66 66 67 69 70 71 68 67 64 60 57 55 56 55 54 53 50 47 48
RH 74 71 81 84 87 90 76 69 77 79 90 93 90 90 75 70 63 61 70 75 77 83
WIND DIR SW S SE S S S SW SW SW W NW N N N N N N NE NE NE NE NE
WIND SPD 14 12 12 12 12 12 17 16 11 6 4 5 9 10 9 8 9 8 8 8 8 8
WIND GUST 28 23 25 25 25 24
CLOUDS B2 B2 B1 SC SC SC B1 B1 B1 B2 OV B2 B2 B1 B2 B2 B2 B1 B1 B1 B1 B1
POP 12HR 50 80 70 30 10
QPF 12HR 0.10-0.38 0.22-0.62 0.07-0.27 0.01 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS D C S S L D L D L L C C S S
TSTMS C C S S L L C C S
HEAT INDEX 84 81
MAX HEAT 87 86 90
FLOOD A A A A A A A
DATE 05/21 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26 MON 05/25/26
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 72 57 75 61 80 62 82 65 84
TEMP 69 70 62 58 69 73 66 62 76 78 67 63 78 80 69 66 80 82
DEWPT 56 56 55 57 63 64 64 62 64 65 64 63 65 66 65 65 67 67
PWIND DIR NE E SE SW SW S S SE SE
WIND CHAR GN GN LT LT LT LT LT LT LT
AVG CLOUDS B1 B1 B1 B2 B2 B2 B1 B2 B2 B1 B1 B1 B1 B1 B1 B1 B2 B1
POP 12HR 10 60 80 50 30 30 30 30 40
RAIN SHWRS L D L C S S C C S C C C C C C
TSTMS S S C C S C S S S
MOZ074-084-085-099-190900-
SAINT FRANCOIS MO-IRON MO-MADISON MO-REYNOLDS MO-
INCLUDING THE CITY OF FARMINGTON
241 PM CDT MON MAY 18 2026
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU
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 69 82 57 69 53
TEMP 82 80 75 73 71 70 77 79 78 73 68 64 61 58 62 66 69 67 62 59 56 54
DEWPT 68 68 67 66 66 66 68 71 73 70 67 64 61 57 57 57 57 55 55 54 53 51
RH 63 67 76 79 84 87 74 77 85 90 97100100 96 84 73 66 65 78 83 90 90
WIND DIR S SE SE S S S SW S SW W N N N N NE NE NE NE NE NE NE NE
WIND SPD 12 10 10 10 10 9 9 8 6 3 2 3 4 5 5 5 5 5 3 3 3 3
WIND GUST 31 28 28 29 28 27 26 23 19 14 12 14 18 21 19 17 17 17 16 14 16 16
CLOUDS B2 B1 B1 SC B1 SC B2 B2 B2 B2 B2 B2 OV B2 B2 B2 B2 B2 B1 B1 B2 B2
POP 12HR 30 90 80 50 20
QPF 12HR 0.03-0.19 0.15-0.65 0.03-0.21 0.01-0.07 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C S S C D D L C D D C C S S S S S S S
TSTMS C S S S C L L C C S S S S
HEAT INDEX 86 82 80
MAX HEAT 91 85 88 90
DATE 05/21 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26 MON 05/25/26
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 74 58 77 59 81 60 82 62 84
TEMP 71 72 63 59 73 74 65 60 78 78 66 61 79 79 67 63 80 81
DEWPT 58 60 60 59 66 66 64 60 65 67 64 61 66 67 65 63 67 68
PWIND DIR NE E S SW SW S SE SE SE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B2 B2 B2 OV B2 B2 B1 B2 B1 B1 SC B1 B1 B1 B1 B1 B1 B1
POP 12HR 20 70 80 50 40 40 50 30 50
RAIN SHWRS S S C L L D C C S C C C C C C C C C
TSTMS S C S C C S C S S S S C
MOZ051-052-060-190900-
MONTGOMERY MO-LINCOLN MO-WARREN MO-
241 PM CDT MON MAY 18 2026
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU
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 66 77 52 66 48
TEMP 73 73 69 70 68 67 73 74 71 67 62 59 55 52 58 63 65 66 59 56 52 49
DEWPT 69 67 66 66 65 66 68 70 67 61 59 55 51 49 49 51 52 51 51 49 45 44
RH 87 81 90 87 90 97 84 87 87 81 90 87 86 89 72 65 63 58 75 77 77 83
WIND DIR S S S S S SW S SW NW NW N N N N NE NE NE NE NE NE NE NE
WIND SPD 12 12 12 12 10 9 11 10 8 6 5 5 8 8 8 6 5 5 4 4 5 6
WIND GUST 28 27 27 28 25 25 26 23 19 18 17 17 19 20 19 17 16 16 16 17 17
CLOUDS B2 B2 SC B1 B1 B2 B2 B2 B2 OV B2 B1 B1 SC B1 B2 B1 B1 B1 B1 B1 B2
POP 12HR 70 80 50 10 5
QPF 12HR 0.28-1.13 0.09-0.40 0.02-0.15 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS D S S C D S L L C C C C S S
TSTMS L S S C S S C C C S
FLOOD A A A A A A A
DATE 05/21 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26 MON 05/25/26
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 71 54 72 56 79 57 82 61 85
TEMP 65 71 62 55 66 72 62 58 74 78 64 59 78 81 67 63 80 83
DEWPT 54 56 56 55 62 62 61 57 63 64 62 59 64 65 64 61 67 67
PWIND DIR E E E N W S SE SE SE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 SC B1 B1 B1 B1 B1 B1 B1
POP 12HR 10 50 70 40 30 20 20 30 30
RAIN SHWRS S L L L C C S S S S S S S S C
TSTMS S S C S S S S S S S
ILZ098-099-190900-
CALHOUN IL-JERSEY IL-
241 PM CDT MON MAY 18 2026
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU
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 66 78 54 67 48
TEMP 73 72 70 70 68 68 74 76 73 69 64 61 56 54 60 64 66 67 61 57 51 49
DEWPT 67 66 65 65 65 65 67 68 66 62 59 56 51 49 49 50 50 50 50 46 41 42
RH 81 81 84 84 90 90 79 76 79 78 84 84 83 83 67 60 56 54 67 67 68 77
WIND DIR S S S S S S S SW W NW NW N N N N NE NE NE NE NE NE NE
WIND SPD 12 13 13 13 11 10 13 11 9 9 6 9 10 10 9 8 8 6 6 8 8 8
WIND GUST 26 26 26 27 24 23 25 23
CLOUDS B2 B2 SC SC B2 B2 B2 B1 B2 OV OV B2 B2 SC B1 B2 B1 B1 B1 B1 B1 B2
POP 12HR 50 90 50 10 10
QPF 12HR 0.14-0.53 0.22-0.41 0.03-0.16 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS D C S C L S D L C C C C
TSTMS L C S C S S L L C S
FLOOD A A A A A A A
DATE 05/21 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26 MON 05/25/26
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 71 55 72 57 78 59 82 62 85
TEMP 67 71 62 56 67 72 64 60 75 77 65 61 79 81 68 65 81 83
DEWPT 52 54 53 54 59 60 60 58 61 62 61 59 62 64 63 61 65 66
PWIND DIR E E E N SW S S SE SE
WIND CHAR GN GN LT LT LT LT LT LT LT
AVG CLOUDS B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1
POP 12HR 10 50 70 40 30 30 20 30 30
RAIN SHWRS S C L C C C S C C C S S C S C C
TSTMS S S C S S S S S S S
ILZ058-059-190900-
GREENE IL-MACOUPIN IL-
241 PM CDT MON MAY 18 2026
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU
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 65 79 52 67 45
TEMP 73 72 69 70 68 68 75 77 74 69 63 60 55 53 59 64 67 65 59 54 49 47
DEWPT 67 66 64 65 64 65 67 68 66 62 59 55 51 48 49 49 49 49 48 44 40 41
RH 81 81 84 84 87 90 76 74 76 78 87 84 86 83 69 58 52 56 67 69 71 79
WIND DIR S S S S S S S SW W NW NW N N N N NE NE NE NE NE NE NE
WIND SPD 14 14 14 16 12 12 16 14 11 9 8 9 10 10 10 9 9 8 8 9 9 8
WIND GUST 28 26 25 28 26 24 26 26 18
CLOUDS OV B2 B1 SC B2 B2 B2 B2 B2 OV OV B1 B2 SC B1 B2 B1 B1 SC B1 B1 B1
POP 12HR 50 90 50 5 5
QPF 12HR 0.07-0.42 0.20-0.47 0.03-0.13 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS D C C L C D L C C C C
TSTMS L C C S C C L C S
DATE 05/21 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26 MON 05/25/26
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 70 52 71 55 78 57 81 60 84
TEMP 67 69 60 54 66 71 63 58 74 76 64 59 78 79 67 63 80 82
DEWPT 51 52 52 52 58 59 60 57 60 61 61 58 61 63 62 61 64 65
PWIND DIR E E E N W S S SE SE
WIND CHAR GN GN GN LT LT LT LT LT LT
AVG CLOUDS B1 B1 B1 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B2 B1
POP 12HR 5 50 70 40 30 30 20 30 30
RAIN SHWRS C L C C S C S C C S S C S S C
TSTMS S S C S S S S S S S
ILZ064-065-190900-
BOND IL-FAYETTE IL-
INCLUDING THE CITY OF VANDALIA
241 PM CDT MON MAY 18 2026
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU
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 67 82 57 68 48
TEMP 75 73 70 69 69 69 76 79 78 74 68 64 61 58 62 65 68 67 61 55 51 50
DEWPT 68 66 65 65 65 65 68 68 68 66 64 61 57 53 53 53 53 51 50 45 43 45
RH 79 79 84 87 87 87 76 69 71 76 87 90 87 83 72 65 59 56 67 69 74 83
WIND DIR SW S S S S S SW SW SW W NW N N N N NE NE NE NE NE NE NE
WIND SPD 12 12 12 12 12 12 17 14 11 6 5 6 9 10 10 8 9 8 9 8 8 8
WIND GUST 26 24 23 24 25 24
CLOUDS OV B2 B1 SC SC B1 B2 B1 B2 B2 OV B2 B1 SC B2 B2 B2 B1 B1 B1 B1 B1
POP 12HR 50 80 80 20 10
QPF 12HR 0.06-0.15 0.21-0.54 0.08-0.28 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS D C S S S C L D C C L L S S
TSTMS L C S S C L L C C S
HEAT INDEX 81
MAX HEAT 85 86
FLOOD A A A A A A A
DATE 05/21 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26 MON 05/25/26
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 70 55 72 60 78 60 81 63 83
TEMP 67 69 61 56 67 72 65 61 75 77 66 61 78 79 68 64 79 81
DEWPT 53 53 53 54 60 62 62 60 63 63 62 61 63 64 63 63 65 66
PWIND DIR NE E E SW SW S S SE SE
WIND CHAR GN GN LT LT LT LT LT LT LT
AVG CLOUDS B1 B1 B1 B2 B2 B2 B1 B2 B2 B1 B1 B1 B1 B1 B1 B1 B2 B1
POP 12HR 5 50 80 50 30 30 30 30 30
RAIN SHWRS C D L C S C C C S C S C S C C
TSTMS S S C S S S S S S
ILZ060-190900-
MONTGOMERY IL-
INCLUDING THE CITY OF LITCHFIELD
241 PM CDT MON MAY 18 2026
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU
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 66 80 54 67 45
TEMP 73 72 69 69 68 68 75 78 76 71 65 61 57 54 60 64 67 65 59 53 49 47
DEWPT 68 66 65 65 65 65 68 68 68 65 62 58 54 50 51 52 52 51 48 44 41 43
RH 84 81 87 87 90 90 79 71 76 81 90 90 90 86 72 65 59 60 67 71 74 86
WIND DIR S S S S S S S SW W NW NW N N N N N NE NE NE NE NE NE
WIND SPD 13 13 14 14 13 13 17 16 11 8 8 8 10 11 10 9 9 8 10 8 8 8
WIND GUST 26 26 25 28 26 24
CLOUDS OV B2 B1 SC SC B2 B2 B1 B2 B2 OV B2 B1 SC B2 B2 B1 B1 B1 B1 B1 B1
POP 12HR 50 80 70 10 10
QPF 12HR 0.06-0.17 0.18-0.34 0.05-0.37 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS D C S C S C L D L S C C
TSTMS L C S S S C C L C S
DATE 05/21 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26 MON 05/25/26
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 70 52 71 57 77 58 80 61 83
TEMP 67 68 59 54 65 70 63 58 74 75 64 59 77 78 66 62 79 81
DEWPT 53 53 52 52 59 61 61 58 62 63 62 59 63 64 63 62 65 66
PWIND DIR E E E SW W SW S SE SE
WIND CHAR GN GN GN LT LT LT LT LT LT
AVG CLOUDS B1 B1 B1 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B2 B1
POP 12HR 5 50 70 40 30 30 30 20 30
RAIN SHWRS C L C C S C S C C C S S S S C
TSTMS S S C S S S S S S
ILZ079-MOZ075-190900-
RANDOLPH IL-SAINTE GENEVIEVE MO-
INCLUDING THE CITIES OF CHESTER AND SPARTA
241 PM CDT MON MAY 18 2026
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU
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 68 84 58 69 52
TEMP 82 80 75 73 71 70 78 81 80 75 69 65 63 59 62 66 68 69 63 60 56 53
DEWPT 69 68 67 66 66 66 69 71 73 70 68 65 61 57 56 56 57 55 55 54 51 49
RH 65 67 76 79 84 87 74 72 79 84 97100 93 93 81 70 68 61 75 81 83 86
WIND DIR S S SE S S S SW S SW W NW N N N N N N NE NE NE NE NE
WIND SPD 16 12 12 12 12 11 12 11 9 5 4 5 8 9 8 8 8 8 5 5 5 5
WIND GUST 31 24 27 29 28 26 25 23 19 19 18
CLOUDS B2 B1 SC SC SC SC B2 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B2 B2
POP 12HR 30 90 70 40 10
QPF 12HR 0.07-0.15 0.18-0.39 0.05-0.23 0.01-0.06 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L C C L L C L L L C C S S
TSTMS C S C L L C C S
HEAT INDEX 86 82 85 83
MAX HEAT 91 83 88 90
DATE 05/21 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26 MON 05/25/26
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 73 57 76 60 81 60 82 63 85
TEMP 69 73 64 58 71 75 66 61 77 79 67 62 79 80 69 64 81 82
DEWPT 58 59 58 58 65 66 64 61 65 66 64 62 66 67 65 64 68 68
PWIND DIR NE E S SW SW S S SE SE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B2 B2 B2 B2 B2 B2 B1 B2 B1 B1 SC B1 B1 B1 B1 B1 B1 B1
POP 12HR 20 70 80 50 40 30 40 40 40
RAIN SHWRS S S L D D C C S C C C C C C C C C
TSTMS C S C C S C S S S S
MOZ059-062-072-073-190900-
GASCONADE MO-FRANKLIN MO-CRAWFORD MO-WASHINGTON MO-
INCLUDING THE CITIES OF WASHINGTON, UNION, AND SULLIVAN
241 PM CDT MON MAY 18 2026
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU
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 67 80 54 67 50
TEMP 75 74 70 71 70 69 75 76 75 70 64 61 57 54 59 63 66 66 60 58 55 51
DEWPT 69 67 66 65 65 65 68 71 71 67 64 60 56 53 53 53 54 52 53 52 50 48
RH 82 79 87 81 84 87 79 85 87 90100 97 96 96 80 70 65 61 78 80 83 89
WIND DIR S S S S S SW S SW W NW N N N N NE NE NE NE NE NE NE NE
WIND SPD 12 12 11 11 11 8 10 9 6 4 3 3 4 5 5 5 5 4 3 2 3 4
WIND GUST 29 28 28 29 28 26 25 21 18 14 13 13 17 18 17 16 16 16 14 12 14 16
CLOUDS B2 B1 SC SC B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B2 B2 B2 B2 B1 B1 B1 B2
POP 12HR 40 80 70 30 10
QPF 12HR 0.09-0.76 0.16-0.58 0.04-0.18 0.00-0.06 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS D C S C C L L L L L L C C C C
TSTMS L C S S C L L C C S
FLOOD A A A A A A A
DATE 05/21 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26 MON 05/25/26
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 73 56 75 58 81 58 83 62 85
TEMP 68 71 63 57 70 73 64 59 77 78 65 60 79 80 68 63 80 82
DEWPT 56 58 59 57 64 64 62 59 64 65 63 60 65 66 64 62 67 67
PWIND DIR E E SE SW SW SE SE SE SE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B2 B2 B2 B2 B2 B2 B1 B2 B2 B1 SC B1 B1 B1 B1 B1 B1 B1
POP 12HR 20 60 70 40 40 30 30 30 40
RAIN SHWRS S C L L L C C S C S S S C C C S C
TSTMS S S C C S S S S S S S
ILZ102-MOZ065-190900-
MONROE IL-JEFFERSON MO-
241 PM CDT MON MAY 18 2026
DATE 05/18/26 TUE 05/19/26 WED 05/20/26 THU
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 68 82 56 68 51
TEMP 76 75 71 70 70 69 77 79 78 73 67 63 59 56 61 65 67 68 62 59 55 52
DEWPT 70 68 67 66 66 66 69 72 73 70 67 63 58 54 54 55 56 54 55 53 49 47
RH 82 79 87 87 87 90 76 79 85 90100100 96 93 78 70 68 61 78 80 80 83
WIND DIR SW S S S S S S SW SW NW N N N N N NE N NE NE NE NE NE
WIND SPD 12 11 11 10 10 8 10 9 6 4 4 4 6 6 5 5 5 5 4 4 4 4
WIND GUST 26 24 27 26 27 21 23 21 17 17 18 16 14 14
CLOUDS B2 B1 B1 SC B1 SC B2 B2 B1 B2 B2 B2 B2 B1 B2 B2 B2 B1 B1 B1 B1 B2
POP 12HR 40 80 70 30 10
QPF 12HR 0.11-0.21 0.17-0.38 0.05-0.24 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS D C C C L D L L L L C C S S
TSTMS C S S C L L C C S
HEAT INDEX 81
MAX HEAT 83 87 89
FLOOD A A A A A A A
DATE 05/21 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26 MON 05/25/26
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 73 56 75 59 81 60 83 63 86
TEMP 69 72 63 57 71 74 65 60 78 79 66 61 80 81 69 64 81 83
DEWPT 57 59 58 57 65 66 64 60 65 66 64 61 66 67 65 63 68 69
PWIND DIR NE E SE SW SW S S SE SE
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS B2 B1 B2 B2 B2 B2 B1 B1 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1
POP 12HR 20 60 70 50 40 30 40 30 40
RAIN SHWRS S S L L L C C S C C C C C C C C C
TSTMS S S C C S S S S S S
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