067
FOUS53 KLSX 180941
AFMLSX
AREA FORECAST MATRICES
NATIONAL WEATHER SERVICE SAINT LOUIS MO
441 AM CDT MON MAY 18 2026
ILZ100-101-MOZ061-063-064-182100-
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
441 AM CDT MON MAY 18 2026
DATE MON 05/18/26 TUE 05/19/26 WED 05/20/26
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 80 70 85 57 69
TEMP 75 79 80 79 77 73 72 71 71 79 82 80 75 69 64 59 57 62 66 68 68
DEWPT 68 69 70 69 67 66 66 66 66 68 70 70 65 63 60 55 52 51 52 52 51
RH 79 72 72 72 71 79 81 84 84 69 67 72 71 81 87 87 83 67 61 57 54
WIND DIR S S SW S S S S S S SW SW W NW NW N N N N N N NE
WIND SPD 12 16 16 14 13 13 12 11 11 14 12 10 8 6 8 9 10 9 8 9 6
WIND GUST 27 27 29 27 26 27 26 24 24 25 23
CLOUDS SC B2 B2 B2 B2 B1 SC SC B1 B2 B2 B2 OV OV OV B2 B2 B2 B2 B2 B1
POP 12HR 90 50 100 80 10
QPF 12HR 0.24-0.51 0.01-0.19 0.21-0.43 0.03-0.22 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C L D L C S S C C D D D D L L
TSTMS S C L L C S S S C L L S
HEAT INDEX 81 82 80 80 85 83
MAX HEAT 87 86 90 92
DATE THU 05/21/26 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26
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 51 73 57 76 60 82 61 86
TEMP 58 52 69 72 63 59 71 75 65 62 78 80 67 64 83 84
DEWPT 50 45 54 55 56 55 60 61 63 60 63 63 63 62 64 64
PWIND DIR NE E E E SE SW W S
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS B2 B1 B1 B1 B1 B2 B2 B2 B2 B2 B1 B1 SC B1 SC SC
POP 12HR 5 5 30 50 40 20 10 10
RAIN SHWRS C C C C C S S
TSTMS C S S S
MOZ049-050-182100-
OSAGE MO-CALLAWAY MO-
INCLUDING THE CITY OF FULTON
441 AM CDT MON MAY 18 2026
DATE MON 05/18/26 TUE 05/19/26 WED 05/20/26
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 78 67 79 52 67
TEMP 73 76 76 77 77 73 73 71 68 74 74 73 69 63 59 54 52 58 63 66 65
DEWPT 68 68 68 69 67 66 65 65 65 68 66 65 60 57 54 50 48 48 49 50 49
RH 84 76 76 76 71 79 76 81 90 82 76 76 73 81 83 86 86 69 60 56 56
WIND DIR S SW S S S S S S SW SW W NW NW N N N N NE NE NE NE
WIND SPD 12 13 13 14 13 13 13 11 11 11 10 9 8 5 5 6 8 9 8 8 6
WIND GUST 29 29 27 29 29 31 29 26 26 25 21 20 16 17 19 20 20 17
CLOUDS B1 B2 B2 B2 B1 SC B1 B1 B2 B2 B2 B2 OV B2 B2 B2 B1 B1 B2 B1 B1
POP 12HR 90 60 90 40 10
QPF 12HR 0.31-0.70 0.04-0.18 0.02-0.34 0.01 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C D D L C S C L C D D C C C C
TSTMS C C L C C S C S C C C S
FLOOD A A A A
DATE THU 05/21/26 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26
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 49 71 55 75 56 81 58 86
TEMP 55 50 67 70 61 57 70 74 62 58 77 79 64 61 82 83
DEWPT 49 46 52 55 56 55 61 61 61 58 61 62 61 60 63 64
PWIND DIR NE E E SE SE SW S S
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS B1 B1 B1 B1 B1 B2 B2 B2 B1 B1 B1 SC SC SC SC SC
POP 12HR 5 20 40 50 20 10 10 10
RAIN SHWRS S S C C C S S S S S
TSTMS S C S S S S
MOZ042-182100-
AUDRAIN MO-
INCLUDING THE CITY OF MEXICO
441 AM CDT MON MAY 18 2026
DATE MON 05/18/26 TUE 05/19/26 WED 05/20/26
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 77 66 76 51 66
TEMP 72 73 75 76 77 73 72 69 67 72 73 71 69 61 57 53 51 58 63 65 65
DEWPT 67 67 68 68 67 65 65 64 64 65 63 60 56 53 50 47 46 46 47 47 47
RH 84 81 79 76 71 76 79 84 90 79 71 68 63 75 77 80 83 64 56 52 52
WIND DIR S S S S S S S SW SW SW NW NW N N N N N NE NE NE NE
WIND SPD 13 16 17 17 18 16 16 13 14 14 12 11 10 8 8 9 10 11 9 9 8
WIND GUST 27 29 29 31 32 29 31 24 27 27 23 19 20
CLOUDS B2 OV B2 B2 B1 SC B1 OV B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1
POP 12HR 90 60 60 20 5
QPF 12HR 0.30-0.51 0.17-0.39 0.02 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L D D C S S C L C L L S S S S
TSTMS C C L C S S C S C C S
DATE THU 05/21/26 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26
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 48 70 54 74 56 80 58 85
TEMP 54 49 65 69 59 56 70 73 61 58 77 79 63 61 82 83
DEWPT 46 43 50 53 53 53 59 60 58 57 60 61 59 58 63 63
PWIND DIR NE E E E SE SW SW S
WIND CHAR LT GN LT LT LT LT LT LT
AVG CLOUDS B1 B1 SC B1 B1 B2 B2 B2 B1 B1 B1 SC SC SC SC SC
POP 12HR 5 20 40 40 10 10 10 10
RAIN SHWRS S S C C C S
TSTMS C S
MOZ041-047-048-182100-
BOONE MO-MONITEAU MO-COLE MO-
INCLUDING THE CITIES OF COLUMBIA AND JEFFERSON CITY
441 AM CDT MON MAY 18 2026
DATE MON 05/18/26 TUE 05/19/26 WED 05/20/26
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 78 67 78 52 68
TEMP 73 75 76 78 78 74 73 70 69 72 72 72 69 63 59 54 52 59 64 67 67
DEWPT 68 68 68 69 68 66 65 64 65 66 64 61 57 55 52 49 47 47 48 48 48
RH 84 79 76 74 71 76 76 81 87 81 76 68 66 75 78 83 83 64 56 50 50
WIND DIR S S S S S S S S SW W NW NW NW N N N N NE NE NE NE
WIND SPD 11 12 13 14 14 13 13 10 9 10 9 9 6 5 5 6 6 8 8 6 6
WIND GUST 27 28 28 31 32 29 29 23 26 25 21 19 18 16 17 19 20 20
CLOUDS B2 OV B2 B2 B1 SC B1 B2 B2 B2 B2 OV OV B2 B2 B2 B1 B1 B2 B1 B1
POP 12HR 90 50 70 30 5
QPF 12HR 0.25-0.64 0.04-0.39 0.01-0.13 0.01 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L D D L S C C C C D D C C S S
TSTMS C L L C S C C S C C S
FLOOD A A A A
DATE THU 05/21/26 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26
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 50 72 56 77 57 83 60 87
TEMP 56 51 67 70 61 58 71 75 62 59 78 80 64 62 83 84
DEWPT 48 46 52 55 55 56 61 61 60 58 61 62 60 60 63 64
PWIND DIR NE E E SE SE SW S S
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS B1 B1 B1 B1 B1 B2 B2 B2 B2 B1 B1 SC SC SC SC SC
POP 12HR 5 30 40 50 20 10 10 10
RAIN SHWRS C C C C C S S S
TSTMS C S S
ILZ095>097-MOZ018-019-026-027-034>036-182100-
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
441 AM CDT MON MAY 18 2026
DATE MON 05/18/26 TUE 05/19/26 WED 05/20/26
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 77 67 77 51 67
TEMP 72 72 75 77 76 73 72 69 68 72 73 72 68 62 57 53 51 58 63 66 65
DEWPT 66 67 68 68 67 65 65 64 65 65 63 60 56 53 50 47 45 46 48 48 48
RH 81 84 79 74 74 76 79 84 90 79 71 66 65 72 77 80 80 64 58 52 54
WIND DIR S S S S S S S SW SW W NW NW NW N N N N NE NE NE NE
WIND SPD 12 13 16 16 14 14 13 11 13 13 11 11 9 6 6 8 8 9 8 6 5
WIND GUST 28 28 32 33 33 29 29 25 29 27 23 23 20 18 19 19 20 20 18 17
CLOUDS B2 OV OV B2 B1 SC B2 OV B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1
POP 12HR 80 50 40 10 0
QPF 12HR 0.18-0.62 0.15-0.64 0.00-0.17 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS D D L C S S C C C C C C S S
TSTMS C C L C S S C C S S S S
DATE THU 05/21/26 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26
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 48 70 54 74 56 80 59 86
TEMP 54 49 66 69 60 56 69 72 61 58 77 78 64 61 82 83
DEWPT 45 42 50 52 52 53 58 59 57 57 61 61 58 59 63 64
PWIND DIR NE E E E E SW SW S
WIND CHAR LT GN LT LT LT LT LT LT
AVG CLOUDS B1 SC SC SC B1 B2 B2 B2 B1 B1 B1 B1 SC SC SC SC
POP 12HR 5 20 40 40 20 10 10 10
RAIN SHWRS S S C C C S S S
TSTMS C S S
ILZ069-070-074-182100-
CLINTON IL-MARION IL-WASHINGTON IL-
INCLUDING THE CITIES OF CENTRALIA AND SALEM
441 AM CDT MON MAY 18 2026
DATE MON 05/18/26 TUE 05/19/26 WED 05/20/26
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 81 70 85 59 70
TEMP 74 79 80 79 77 73 71 71 72 79 82 81 76 71 66 62 59 63 67 69 68
DEWPT 67 69 70 70 68 66 65 66 67 69 70 70 67 66 63 59 55 54 54 54 52
RH 79 72 72 74 74 79 81 84 84 72 67 69 74 84 90 90 87 72 63 59 57
WIND DIR S S SW S S S S S S SW SW SW W NW NW N N N N N NE
WIND SPD 13 18 19 16 13 13 12 13 13 17 16 11 6 4 6 9 11 10 9 9 8
WIND GUST 27 28 29 27 24 25 25 25 24
CLOUDS SC B2 B2 B2 B2 B1 SC SC SC B2 B2 B2 B2 B2 OV B2 B2 B2 B2 B2 B2
POP 12HR 80 40 80 80 20
QPF 12HR 0.15-0.36 0.01 0.23-0.38 0.14-0.29 0.01
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C L L C S C C D D D D L L S S
TSTMS C L L C S S C L L C
HEAT INDEX 80 84 80 86 85
MAX HEAT 86 86 88 90
DATE THU 05/21/26 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26
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 52 72 57 75 61 81 62 85
TEMP 58 53 69 71 62 59 70 73 65 63 77 79 67 64 82 82
DEWPT 49 47 55 56 55 56 61 62 63 63 64 64 64 64 65 65
PWIND DIR NE NE E E S SW SW S
WIND CHAR LT GN LT LT LT LT LT LT
AVG CLOUDS B2 B1 B1 SC B1 B2 B2 B2 B2 B2 B2 B1 SC B1 B1 SC
POP 12HR 10 5 30 60 40 30 10 10
RAIN SHWRS C L C C C S C
TSTMS S C S S C
MOZ074-084-085-099-182100-
SAINT FRANCOIS MO-IRON MO-MADISON MO-REYNOLDS MO-
INCLUDING THE CITY OF FARMINGTON
441 AM CDT MON MAY 18 2026
DATE MON 05/18/26 TUE 05/19/26 WED 05/20/26
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 81 69 85 56 70
TEMP 73 77 79 80 78 75 73 72 70 79 82 81 76 69 65 60 57 62 67 69 68
DEWPT 68 69 69 69 68 67 66 65 66 68 71 73 69 67 64 60 56 55 54 54 52
RH 84 76 72 69 71 76 79 79 87 69 69 77 79 93 97100 96 78 63 59 57
WIND DIR S S S S S S S S S SW SW SW W NW N N N NE NE N NE
WIND SPD 11 13 13 12 10 10 10 10 9 10 8 6 4 2 3 5 6 6 5 5 5
WIND GUST 28 31 31 29 26 27 27 29 27 26 23 19 14 13 16 20 21 20 18 17 18
CLOUDS B2 B2 B1 B2 B1 SC SC SC B1 B2 B1 B1 B2 B2 OV OV B2 B2 B2 B2 B2
POP 12HR 50 30 90 90 40
QPF 12HR 0.03-0.46 0.00-0.16 0.15-0.45 0.18-0.44 0.01-0.09
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C C C C C C D D D D D D C C C C S
TSTMS S C C C S S C C L C S S S
HEAT INDEX 81 82 86 86
MAX HEAT 86 87 90 94
DATE THU 05/21/26 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26
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 52 75 57 77 59 82 60 85
TEMP 58 53 72 73 63 59 73 75 64 61 78 79 65 62 82 82
DEWPT 52 50 55 58 58 58 62 63 63 61 64 64 63 62 64 65
PWIND DIR NE NE E SE S SW SW S
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS B2 B2 B1 B1 B2 B2 B2 B2 B2 B2 B1 SC SC B1 B1 SC
POP 12HR 20 10 50 60 40 40 10 20
RAIN SHWRS S S C L L C C S C S S
TSTMS C C S S C S S
MOZ051-060-182100-
MONTGOMERY MO-WARREN MO-
441 AM CDT MON MAY 18 2026
DATE MON 05/18/26 TUE 05/19/26 WED 05/20/26
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 77 66 80 51 67
TEMP 73 76 75 77 76 73 73 71 67 75 76 75 71 63 59 54 52 58 63 66 66
DEWPT 68 69 69 69 67 66 65 65 66 68 68 66 61 58 55 51 49 49 50 51 50
RH 84 79 82 76 74 79 76 81 97 79 76 74 71 84 87 90 89 72 62 58 56
WIND DIR S SW S S S S S S SW SW W NW NW N N N N NE NE NE NE
WIND SPD 11 13 12 13 13 12 13 11 10 12 10 8 6 5 5 8 8 8 6 6 5
WIND GUST 27 29 26 28 29 26 28 24 26 26 21 19 18 16 17 19 19 19 17 16
CLOUDS B1 OV B2 B2 B2 SC SC B1 B2 B2 B2 B2 OV B2 B2 B2 B2 B1 B2 B1 B1
POP 12HR 90 60 90 50 5
QPF 12HR 0.29-0.54 0.03-0.25 0.02-0.33 0.00-0.06 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C D D L C S C C C D D C C C C
TSTMS C C L L C S C S C C C S
FLOOD A A A A
DATE THU 05/21/26 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26
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 48 71 54 75 55 81 57 86
TEMP 55 49 66 70 61 56 70 73 62 59 76 79 64 61 82 84
DEWPT 48 44 53 55 55 55 60 61 61 58 62 62 61 60 64 64
PWIND DIR NE E E E SE W SW S
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS B1 B1 B1 B1 B1 B2 B2 B2 B2 B1 B1 B1 SC SC SC SC
POP 12HR 5 20 40 50 20 10 10 10
RAIN SHWRS S S C C C S S S
TSTMS S C S S
MOZ052-182100-
LINCOLN MO-
441 AM CDT MON MAY 18 2026
DATE MON 05/18/26 TUE 05/19/26 WED 05/20/26
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 77 68 81 53 67
TEMP 74 77 75 77 76 73 72 71 69 77 78 76 72 65 61 55 53 59 64 66 67
DEWPT 68 69 69 69 67 66 66 65 66 69 69 66 62 59 55 51 49 49 51 51 51
RH 82 76 82 76 74 79 81 81 90 76 74 71 71 81 81 86 86 69 63 58 56
WIND DIR S SW S S S S S S S SW W NW NW N N N N N NE NE NE
WIND SPD 11 12 11 12 12 11 12 10 9 11 10 8 6 5 5 6 8 8 6 5 4
WIND GUST 26 26 25 27 27 24 28 23 26 26 21 19 17 16 17 19 20 19
CLOUDS B1 OV OV B2 B2 SC SC B1 B2 B2 B2 B2 OV B2 B2 B2 B2 B1 B2 B1 B1
POP 12HR 90 50 90 40 5
QPF 12HR 0.30-0.53 0.10-0.23 0.07-0.25 0.01-0.06 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C D D L C C C C D D C C S S
TSTMS S C L L C C S C C C
DATE THU 05/21/26 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26
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 49 72 55 75 57 81 59 86
TEMP 56 50 67 71 61 57 70 74 63 60 77 79 65 62 83 84
DEWPT 48 44 53 56 55 55 60 62 61 59 63 63 62 60 65 65
PWIND DIR NE E E E SE W W SE
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS B1 B1 SC SC B1 B2 B2 B2 B2 B1 B1 B1 SC SC SC SC
POP 12HR 5 5 30 50 30 10 10 10
RAIN SHWRS C C C S C
TSTMS C S
ILZ058-059-098-099-182100-
GREENE IL-MACOUPIN IL-CALHOUN IL-JERSEY IL-
441 AM CDT MON MAY 18 2026
DATE MON 05/18/26 TUE 05/19/26 WED 05/20/26
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 78 66 82 52 67
TEMP 74 77 76 76 75 72 71 70 69 77 79 77 72 65 61 56 53 60 64 67 66
DEWPT 67 68 68 67 66 65 65 64 65 68 67 65 61 59 55 50 48 48 48 48 48
RH 79 74 76 74 74 79 81 81 87 74 67 67 68 81 81 80 83 64 56 50 52
WIND DIR S S S S S S S S S SW SW NW NW NW N N N N N N NE
WIND SPD 13 17 14 14 14 14 14 12 12 14 13 10 9 8 8 10 10 10 8 8 6
WIND GUST 27 28 28 27 27 26 27 26 25 27 25
CLOUDS SC OV OV B2 B2 SC SC B1 B2 B2 B2 B2 OV OV B2 B2 B2 B1 B1 B1 B1
POP 12HR 90 40 90 50 5
QPF 12HR 0.29-0.59 0.07-0.21 0.09-0.34 0.01-0.09 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C D D L C S C C L D D L L S S
TSTMS S C L L C S C S C C C S
HEAT INDEX 81
MAX HEAT 83 86 87
DATE THU 05/21/26 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26
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 47 71 53 74 56 80 58 85
TEMP 55 48 68 70 61 57 70 73 63 60 77 78 65 62 82 83
DEWPT 45 41 50 52 53 52 57 59 60 58 60 61 60 59 62 63
PWIND DIR NE E E E SE SW W S
WIND CHAR LT GN LT LT LT LT LT LT
AVG CLOUDS B1 SC SC B1 B1 B2 B2 B2 B2 B2 B1 B1 SC SC SC SC
POP 12HR 5 5 20 40 30 30 10 10
RAIN SHWRS S C C C C C S
TSTMS S S S S
ILZ060-064-065-182100-
MONTGOMERY IL-BOND IL-FAYETTE IL-
INCLUDING THE CITIES OF LITCHFIELD AND VANDALIA
441 AM CDT MON MAY 18 2026
DATE MON 05/18/26 TUE 05/19/26 WED 05/20/26
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 79 68 83 56 68
TEMP 73 78 77 76 75 71 70 70 70 78 81 79 74 68 64 59 56 61 65 68 66
DEWPT 65 69 69 68 67 65 65 65 65 68 69 68 65 62 59 55 51 51 52 51 50
RH 76 74 76 76 76 81 84 84 84 71 67 69 74 81 84 87 83 70 63 54 56
WIND DIR S S SW S S S S S S SW SW SW NW NW N N N N N N NE
WIND SPD 13 18 17 14 14 14 13 13 13 18 16 11 8 5 8 10 11 10 9 9 6
WIND GUST 27 29 28 27 27 26 27 27 25
CLOUDS SC B2 B2 OV B2 B1 SC SC B1 B2 B2 B2 B2 B2 OV B2 B2 B2 B2 B1 B1
POP 12HR 90 40 90 80 10
QPF 12HR 0.23-0.45 0.01-0.23 0.18-0.39 0.03-0.23 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C D L C S S C C D D D D C C
TSTMS S C D L C S S S C L L C
HEAT INDEX 83 80
MAX HEAT 83 83 87 88
DATE THU 05/21/26 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26
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 48 71 54 73 58 79 60 83
TEMP 55 49 68 69 60 57 69 72 64 61 76 77 65 63 81 81
DEWPT 45 43 53 53 53 53 59 60 61 60 62 62 62 61 63 64
PWIND DIR NE E E E SE SW SW S
WIND CHAR GN GN LT LT LT LT LT LT
AVG CLOUDS B2 B1 SC SC B1 B2 B2 B2 B2 B2 B1 B1 SC B1 SC SC
POP 12HR 5 5 20 50 40 30 10 10
RAIN SHWRS S C C C C C S
TSTMS S S S S
ILZ079-MOZ075-182100-
RANDOLPH IL-SAINTE GENEVIEVE MO-
INCLUDING THE CITIES OF CHESTER AND SPARTA
441 AM CDT MON MAY 18 2026
DATE MON 05/18/26 TUE 05/19/26 WED 05/20/26
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 82 69 86 57 70
TEMP 74 79 82 81 78 74 73 72 71 79 83 82 77 71 66 61 58 62 66 69 69
DEWPT 68 70 70 70 68 67 66 66 66 69 71 72 69 67 64 60 56 54 55 55 53
RH 82 74 67 69 71 79 79 81 84 72 67 72 76 87 93 97 93 75 68 61 57
WIND DIR S S S S S SE S S S SW SW SW W NW NW N N N N N NE
WIND SPD 13 17 17 16 12 13 12 12 12 13 12 10 6 4 6 9 9 9 8 8 8
WIND GUST 28 31 29 31 26 27 26 28 26 26 23 19 18
CLOUDS B1 B2 B2 B2 B2 SC SC SC SC B2 B1 B2 B2 B2 OV OV B2 B2 B2 B2 B2
POP 12HR 60 30 90 90 40
QPF 12HR 0.02-0.42 0 0.20-0.43 0.16-0.32 0.01
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C L L C C C D D D D D D C C S S S
TSTMS S C L C S S C C L C S S S
HEAT INDEX 85 85 80 88 87
MAX HEAT 88 88 91 93
DATE THU 05/21/26 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26
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 52 74 57 76 59 82 60 85
TEMP 59 53 70 72 63 60 72 75 65 62 78 79 66 63 83 83
DEWPT 52 48 56 57 58 58 62 63 63 62 64 64 64 63 65 65
PWIND DIR NE NE E SE S SW SW S
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS B2 B2 B1 B1 B1 B2 B2 B2 B2 B2 B1 B1 SC SC B1 SC
POP 12HR 20 10 40 60 40 30 10 10
RAIN SHWRS S C L L S C C S
TSTMS C S C S
MOZ059-062-072-073-182100-
GASCONADE MO-FRANKLIN MO-CRAWFORD MO-WASHINGTON MO-
INCLUDING THE CITIES OF WASHINGTON, UNION, AND SULLIVAN
441 AM CDT MON MAY 18 2026
DATE MON 05/18/26 TUE 05/19/26 WED 05/20/26
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 80 69 84 54 68
TEMP 74 78 79 79 77 74 74 73 70 78 80 78 73 66 62 57 54 60 64 67 67
DEWPT 68 69 69 69 67 67 65 65 65 68 70 71 65 63 60 55 52 51 52 52 51
RH 82 74 72 72 71 79 74 76 84 71 72 79 76 90 93 93 93 72 65 59 56
WIND DIR S S S S S S S S SW SW SW W NW N N N N NE NE NE NE
WIND SPD 11 13 13 13 11 11 12 11 9 11 9 6 4 3 3 4 5 6 5 5 5
WIND GUST 28 31 29 29 27 31 28 27 26 25 21 19 14 13 14 18 19 18 16 16 16
CLOUDS B1 B2 B2 B2 B1 SC SC B1 B1 B2 B2 B2 OV OV OV OV B2 B2 B2 B2 B2
POP 12HR 90 40 100 80 20
QPF 12HR 0.18-0.74 0.00-0.21 0.12-0.57 0.02-0.29 0.01
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C L D L C S C C D D D D L L C C S S
TSTMS S C L C C S S C C C C
HEAT INDEX 81 80 82
MAX HEAT 86 86 88 91
FLOOD A A A A
DATE THU 05/21/26 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26
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 50 73 56 77 58 82 59 86
TEMP 57 51 69 71 62 58 72 75 64 60 78 79 65 62 83 83
DEWPT 50 47 54 56 57 56 61 62 62 60 62 63 62 61 63 64
PWIND DIR NE E E E S W S S
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS B1 B1 B1 B1 B2 B2 B2 B2 B2 B2 B1 B1 SC SC SC SC
POP 12HR 10 10 40 50 40 20 10 20
RAIN SHWRS S S C C C C C S S
TSTMS C S S S S
ILZ102-MOZ065-182100-
MONROE IL-JEFFERSON MO-
441 AM CDT MON MAY 18 2026
DATE MON 05/18/26 TUE 05/19/26 WED 05/20/26
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 81 69 86 56 69
TEMP 75 79 81 81 78 74 73 73 70 80 82 81 75 69 64 59 56 61 65 68 68
DEWPT 68 70 70 70 68 67 67 66 66 70 72 73 68 66 62 58 53 53 54 55 53
RH 79 74 69 69 71 79 81 79 87 72 72 77 79 90 93 96 90 75 68 63 59
WIND DIR S S S S S SE S S S SW SW SW NW NW N N N N N N NE
WIND SPD 11 13 13 13 11 11 10 10 9 10 9 6 5 4 5 6 6 6 6 5 5
WIND GUST 26 26 27 28 25 27 25 25 23 23 21 18 17 18 17 16
CLOUDS B1 B2 B2 B2 B2 SC SC SC B1 B2 B2 B1 OV B2 OV OV B2 B2 B2 B2 B2
POP 12HR 90 30 100 90 20
QPF 12HR 0.27-0.49 0.01-0.07 0.30-0.42 0.10-0.20 0.01
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C D L C C C D D D D L L S S S S
TSTMS S C L C C S C L L C
HEAT INDEX 81 85 84 81 87 86
MAX HEAT 88 88 92 94
DATE THU 05/21/26 FRI 05/22/26 SAT 05/23/26 SUN 05/24/26
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 51 73 56 76 59 82 60 86
TEMP 58 52 69 72 63 59 72 75 65 61 79 80 66 63 83 84
DEWPT 52 46 56 58 58 56 62 63 63 61 64 64 64 62 65 65
PWIND DIR NE E E E S SW SW S
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS B2 B1 B1 B1 B1 B2 B2 B2 B2 B2 B1 B1 SC SC SC SC
POP 12HR 10 10 40 60 40 20 10 10
RAIN SHWRS C L L S C S S S
TSTMS C S S S S
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