239  
FOUS53 KLSX 141401  
AFMLSX  
 
AREA FORECAST MATRICES  
NATIONAL WEATHER SERVICE SAINT LOUIS MO  
901 AM CDT THU MAY 14 2026  
 
ILZ100-101-MOZ061-063-064-142100-  
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  
901 AM CDT THU MAY 14 2026  
 
DATE THU 05/14/26 FRI 05/15/26 SAT 05/16/26  
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 75 56 82 65 84  
TEMP 64 71 74 73 64 60 58 57 64 75 81 80 72 69 66 66 76 80 84 82  
DEWPT 44 42 42 44 46 45 44 48 53 57 61 61 62 62 61 62 65 66 66 65  
RH 48 35 32 35 52 58 59 72 67 54 51 52 71 78 84 87 69 62 55 56  
WIND DIR SE SE SE SE SE SE SE SE S S S S S S S S SW SW S S  
WIND SPD 3 4 6 8 8 8 9 10 12 13 11 9 6 6 6 6 10 10 10 8  
WIND GUST 18 20 20 23 24 21 18 17 17 20  
CLOUDS CL FW FW FW SC SC B1 B2 B1 SC FW B1 B1 SC B1 B1 B2 B1 B1 SC  
POP 12HR 0 50 60 30 70  
QPF 12HR 0 0.02-0.25 0.02-0.31 0.01 0.08-0.20  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS C L S S S C C L L L L C  
TSTMS C C S S S S C C C C  
HEAT INDEX 81 81 82 86 83  
MAX HEAT 85 81 87 91  
 
DATE SUN 05/17/26 MON 05/18/26 TUE 05/19/26 WED 05/20/26  
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 65 90 70 89 70 82 63 78  
TEMP 70 66 87 87 74 71 86 86 75 70 80 79 68 63 75 75  
DEWPT 63 61 66 64 62 63 69 68 67 66 68 66 63 59 61 61  
PWIND DIR S S S S S SW S N  
WIND CHAR LT GN GN BZ GN GN LT LT  
AVG CLOUDS SC SC SC FW FW FW FW B1 SC B1 B1 B1 B1 B2 B1 B1  
POP 12HR 20 5 5 40 50 70 70 40  
RAIN SHWRS C C C C C L L L C C  
TSTMS C C C S S C C S S  
 
 
 
MOZ042-049-050-142100-  
AUDRAIN MO-OSAGE MO-CALLAWAY MO-  
INCLUDING THE CITIES OF MEXICO AND FULTON  
901 AM CDT THU MAY 14 2026  
 
DATE THU 05/14/26 FRI 05/15/26 SAT 05/16/26  
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 76 57 84 64 85  
TEMP 64 73 75 74 64 62 59 58 67 78 83 81 71 68 65 65 74 80 84 82  
DEWPT 45 45 45 48 46 45 47 51 57 61 63 63 61 60 58 60 64 65 65 65  
RH 50 37 34 40 52 54 64 77 70 56 51 54 71 76 78 84 71 60 53 56  
WIND DIR S SE SE SE SE S S SE S S S S S S S S S S S S  
WIND SPD 5 8 10 9 9 10 10 10 11 12 11 9 6 6 6 6 10 10 10 6  
WIND GUST 18 20 20 23 24 25 24 25 23 21 20 17 18 18 19 21 21 20 18  
CLOUDS FW FW SC SC B1 B1 B2 SC SC SC SC B1 SC B1 B1 B1 B1 B1 SC SC  
POP 12HR 5 40 20 40 70  
QPF 12HR 0 0.00-0.16 0 0.00-0.07 0.04-0.20  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS C C S S S C C L L L L C  
TSTMS C C S S S C C C C C C C  
HEAT INDEX 84 82 82 86 84  
MAX HEAT 82 88 82 86 91  
 
DATE SUN 05/17/26 MON 05/18/26 TUE 05/19/26 WED 05/20/26  
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 63 89 70 86 65 78 58 75  
TEMP 68 64 86 87 73 71 83 84 71 66 77 76 63 58 73 74  
DEWPT 62 60 66 66 63 64 69 69 65 63 65 64 60 56 59 59  
PWIND DIR S S S S S SW E N  
WIND CHAR LT GN GN BZ GN GN LT LT  
AVG CLOUDS SC SC SC FW FW FW SC B1 SC B1 B1 B1 B2 B2 B1 B1  
POP 12HR 40 5 10 50 60 60 60 20  
RAIN SHWRS C S C L L C L L L S S  
TSTMS C S C C S S C C S S  
 
 
 
MOZ041-047-048-142100-  
BOONE MO-MONITEAU MO-COLE MO-  
INCLUDING THE CITIES OF COLUMBIA AND JEFFERSON CITY  
901 AM CDT THU MAY 14 2026  
 
DATE THU 05/14/26 FRI 05/15/26 SAT 05/16/26  
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 59 86 65 87  
TEMP 65 74 76 75 66 63 61 60 70 81 86 84 73 69 67 66 75 82 87 84  
DEWPT 46 45 45 48 47 46 49 52 58 63 64 64 61 59 58 60 64 66 66 66  
RH 50 35 33 38 50 54 65 75 66 54 48 51 66 70 73 81 69 58 50 55  
WIND DIR S SE SE SE SE S S SE S S S S S S S S S S S S  
WIND SPD 5 8 10 9 9 9 8 8 10 10 10 8 5 5 5 5 9 9 9 5  
WIND GUST 18 20 20 21 24 24 23 24 23 21 19 17 17 18 18 21 20 20 17  
CLOUDS FW SC FW B1 B1 B1 B2 SC SC FW B1 SC B1 SC B1 B1 B1 B1 SC SC  
POP 12HR 5 30 20 50 70  
QPF 12HR 0 0.00-0.09 0 0.00-0.10 0.07-0.21  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS C S S S S C C L L C C C  
TSTMS C S S S S C C C C C C C  
HEAT INDEX 82 87 85 84 89 87  
MAX HEAT 85 90 83 87 93  
 
DATE SUN 05/17/26 MON 05/18/26 TUE 05/19/26 WED 05/20/26  
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 64 91 71 87 66 79 58 76  
TEMP 68 65 86 88 74 72 85 85 72 66 78 77 64 59 74 75  
DEWPT 61 61 67 67 63 65 71 69 65 63 66 64 59 56 59 60  
PWIND DIR S S S S S SW E N  
WIND CHAR LT GN GN BZ GN GN LT LT  
AVG CLOUDS SC B1 SC FW FW FW SC B1 B1 B1 B1 B1 B2 B2 B1 B1  
POP 12HR 40 5 10 60 60 70 60 20  
RAIN SHWRS C S L L C L L L L S S  
TSTMS C S C C S S C C S S  
 
 
 
ILZ095>097-MOZ018-019-026-027-034>036-142100-  
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  
901 AM CDT THU MAY 14 2026  
 
DATE THU 05/14/26 FRI 05/15/26 SAT 05/16/26  
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 76 57 82 64 84  
TEMP 65 72 75 73 65 62 59 58 66 77 82 80 71 68 65 65 76 82 84 81  
DEWPT 44 44 44 46 45 46 49 52 56 60 62 62 60 59 59 60 64 65 65 65  
RH 46 37 33 38 48 56 69 80 70 56 51 54 68 73 81 84 66 56 53 58  
WIND DIR S S S SE SE S SE SE S S S S S S S S S S S S  
WIND SPD 5 8 10 9 9 10 10 10 12 12 11 9 6 5 5 5 9 10 9 5  
WIND GUST 16 20 24 24 24 25 25 25 25 24 23 21 18 18 18 18 21 21 19 17  
CLOUDS CL FW FW SC B1 B2 B2 B1 SC FW SC SC SC SC SC B1 B1 B1 SC SC  
POP 12HR 5 60 30 30 70  
QPF 12HR 0 0.04-0.39 0.00-0.18 0.01 0.09-0.20  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS L C C S S C C C C L L L  
TSTMS C C S S C C C C C C C  
HEAT INDEX 83 81 83 86 83  
MAX HEAT 81 86 87 89  
 
DATE SUN 05/17/26 MON 05/18/26 TUE 05/19/26 WED 05/20/26  
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 63 89 70 87 65 78 58 74  
TEMP 68 64 85 86 74 71 85 84 71 65 77 75 63 58 72 72  
DEWPT 62 61 67 66 62 64 70 69 64 62 65 63 57 54 58 57  
PWIND DIR S S S S SW SW NE N  
WIND CHAR LT GN GN BZ GN GN LT LT  
AVG CLOUDS SC B1 B1 SC FW FW SC B1 B1 B1 B1 B2 B2 B2 B2 B1  
POP 12HR 60 10 10 50 60 60 50 20  
RAIN SHWRS L C C S C C L L L L C C S S  
TSTMS C C C S S C C S S C C  
 
 
 
ILZ069-070-074-142100-  
CLINTON IL-MARION IL-WASHINGTON IL-  
INCLUDING THE CITIES OF CENTRALIA AND SALEM  
901 AM CDT THU MAY 14 2026  
 
DATE THU 05/14/26 FRI 05/15/26 SAT 05/16/26  
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 72 54 79 65 83  
TEMP 62 69 71 70 60 57 56 55 62 71 78 77 70 67 66 67 76 80 83 80  
DEWPT 43 42 41 45 45 44 44 46 51 56 59 61 60 61 62 64 66 66 65 64  
RH 50 37 34 41 58 62 64 72 67 59 52 58 71 81 87 90 71 62 55 58  
WIND DIR SE S S SE SE SE SE SE S S S S S S S S SW SW S S  
WIND SPD 2 0 1 3 4 5 8 10 12 14 12 8 8 9 10 10 12 12 12 9  
WIND GUST 18 20 20 20 20  
CLOUDS CL CL FW FW FW SC B1 B2 B1 SC SC SC B1 B1 B1 B1 B2 B1 B1 SC  
POP 12HR 0 40 50 30 60  
QPF 12HR 0 0.00-0.19 0.07-0.28 0.01 0.05-0.32  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS S C S C C L L C C C  
TSTMS S S S S C C C C  
HEAT INDEX 81 85 82  
MAX HEAT 82 86 87  
 
DATE SUN 05/17/26 MON 05/18/26 TUE 05/19/26 WED 05/20/26  
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 65 88 69 87 71 82 64 77  
TEMP 69 66 85 85 72 70 86 84 75 71 80 79 69 64 75 75  
DEWPT 62 62 66 64 61 64 69 68 67 68 68 66 64 62 62 61  
PWIND DIR S S S S S SW S W  
WIND CHAR LT GN GN BZ GN GN LT LT  
AVG CLOUDS SC SC FW FW FW FW FW SC SC B1 B1 B1 B1 B1 B1 B1  
POP 12HR 20 5 5 30 50 70 70 50  
RAIN SHWRS C C C C C L L L S C  
TSTMS S C C S C C S S  
 
 
 
MOZ074-084-085-099-142100-  
SAINT FRANCOIS MO-IRON MO-MADISON MO-REYNOLDS MO-  
INCLUDING THE CITY OF FARMINGTON  
901 AM CDT THU MAY 14 2026  
 
DATE THU 05/14/26 FRI 05/15/26 SAT 05/16/26  
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 54 82 65 86  
TEMP 65 71 76 73 63 59 56 55 66 76 81 79 72 69 66 66 75 83 86 82  
DEWPT 43 42 42 46 44 42 43 45 51 57 60 62 61 61 61 62 64 63 62 62  
RH 45 35 30 38 50 53 62 69 58 52 49 56 68 76 84 87 69 51 45 51  
WIND DIR SE SE S SE SE S S S S S S S S S S S S S S S  
WIND SPD 2 3 4 4 3 4 5 6 9 9 8 5 5 4 4 5 6 8 9 6  
WIND GUST 14 17 19 20 25 27 27 25 24 20 20 20 21 23 21 21 24 21  
CLOUDS CL FW FW FW SC SC SC SC SC SC B1 B1 B1 B1 B2 B2 B1 B1 B1 SC  
POP 12HR 0 5 10 20 40  
QPF 12HR 0 0 0.00-0.07 0 0.01  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS S S S C C  
TSTMS S S S  
HEAT INDEX 82 84 86 83  
MAX HEAT 85 88 90  
 
DATE SUN 05/17/26 MON 05/18/26 TUE 05/19/26 WED 05/20/26  
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 63 90 69 87 68 82 62 79  
TEMP 69 64 87 85 73 70 85 83 74 69 80 78 68 62 77 76  
DEWPT 60 59 63 62 61 64 67 67 67 67 68 66 63 61 61 62  
PWIND DIR S S S S S S S SW  
WIND CHAR LT GN GN GN GN LT LT LT  
AVG CLOUDS SC SC FW FW CL FW SC B1 SC B1 B2 B1 B1 B1 B2 B1  
POP 12HR 5 5 5 30 50 70 70 50  
RAIN SHWRS C C C C L L L C C  
TSTMS C C S C C S S S  
 
 
 
MOZ051-052-060-142100-  
MONTGOMERY MO-LINCOLN MO-WARREN MO-  
901 AM CDT THU MAY 14 2026  
 
DATE THU 05/14/26 FRI 05/15/26 SAT 05/16/26  
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 76 55 83 63 84  
TEMP 64 71 75 73 64 61 58 56 65 76 82 81 70 68 65 65 73 80 83 82  
DEWPT 45 44 44 47 46 45 47 51 56 60 62 63 62 61 59 61 65 66 66 65  
RH 50 38 33 40 52 56 67 83 73 58 51 54 76 78 81 87 76 62 57 56  
WIND DIR SE SE SE SE SE S S SE S S S S S S S S S S S S  
WIND SPD 3 5 6 6 6 8 8 8 10 10 9 6 5 4 5 5 8 8 6 4  
WIND GUST 18 19 20 21 23 23 24 23 21 19 16 17 18 18 20 20 19 16  
CLOUDS CL FW SC SC B1 B1 B2 B1 SC SC SC B1 B1 SC B1 B1 B1 B1 SC SC  
POP 12HR 0 40 40 40 70  
QPF 12HR 0 0.05-0.27 0.00-0.25 0.02 0.11-0.19  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS S C C S S C C L L L L C  
TSTMS S C C S S C C C C C C C  
HEAT INDEX 83 82 81 85 84  
MAX HEAT 86 81 85 89  
 
DATE SUN 05/17/26 MON 05/18/26 TUE 05/19/26 WED 05/20/26  
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 63 90 69 87 66 79 59 76  
TEMP 69 64 86 87 74 70 85 85 73 66 77 77 65 59 73 74  
DEWPT 63 61 66 66 63 64 70 69 66 64 67 65 61 57 60 60  
PWIND DIR S S S S SW SW S N  
WIND CHAR LT GN GN BZ GN GN LT LT  
AVG CLOUDS SC SC SC SC FW FW SC B1 SC B1 B2 B1 B2 B2 B1 B1  
POP 12HR 40 10 5 50 60 70 60 30  
RAIN SHWRS C S C L C C L L L S C  
TSTMS C S C C S S C C S S  
 
 
 
ILZ058-059-098-099-142100-  
GREENE IL-MACOUPIN IL-CALHOUN IL-JERSEY IL-  
901 AM CDT THU MAY 14 2026  
 
DATE THU 05/14/26 FRI 05/15/26 SAT 05/16/26  
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 74 53 80 62 82  
TEMP 63 70 73 71 62 60 57 55 62 73 80 78 69 66 63 64 74 78 81 79  
DEWPT 42 40 40 43 43 43 43 47 51 55 58 59 59 60 59 60 63 63 63 63  
RH 46 33 30 36 50 53 59 74 67 53 47 52 70 81 87 87 69 60 54 58  
WIND DIR S S SE SE SE S SE SE S S S S S S S S SW SW S S  
WIND SPD 4 4 6 9 9 10 11 11 14 14 12 10 8 8 6 8 11 11 9 6  
WIND GUST 20 20 23 23 26 26 24 18 17 21 19  
CLOUDS CL FW FW FW SC B1 B2 B2 B1 FW SC B1 B1 B1 SC B1 B1 B1 B1 SC  
POP 12HR 0 70 60 40 70  
QPF 12HR 0 0.09-0.47 0.02-0.16 0.00-0.05 0.15-0.27  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS S C L S S S C C L L L L C  
TSTMS S C C S C C S C C C C  
HEAT INDEX 80 83 80  
MAX HEAT 84 82 83 87  
 
DATE SUN 05/17/26 MON 05/18/26 TUE 05/19/26 WED 05/20/26  
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 62 88 68 87 66 80 59 75  
TEMP 68 64 86 85 72 69 85 84 72 67 79 76 65 60 73 73  
DEWPT 62 60 64 63 61 62 67 67 66 63 65 64 61 57 58 58  
PWIND DIR S S S S SW SW S N  
WIND CHAR LT GN GN BZ GN GN LT LT  
AVG CLOUDS SC B1 SC SC FW FW SC B1 SC B1 B1 B1 B2 B2 B1 B1  
POP 12HR 40 5 5 40 60 70 60 30  
RAIN SHWRS C S S C L C C L L L C C  
TSTMS C S S C C S S C C S S  
 
 
 
ILZ060-064-065-142100-  
MONTGOMERY IL-BOND IL-FAYETTE IL-  
INCLUDING THE CITIES OF LITCHFIELD AND VANDALIA  
901 AM CDT THU MAY 14 2026  
 
DATE THU 05/14/26 FRI 05/15/26 SAT 05/16/26  
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 71 52 77 63 81  
TEMP 62 68 71 69 59 57 55 54 60 69 76 75 67 65 63 65 75 78 81 78  
DEWPT 42 41 40 43 44 43 43 45 51 55 58 59 59 60 60 61 65 65 64 63  
RH 48 37 32 39 57 59 64 71 72 61 54 58 75 84 90 87 71 64 56 60  
WIND DIR S S S SE SE SE SE SE S S S S S S S S SW SW SW S  
WIND SPD 2 1 3 4 5 6 9 10 13 16 13 9 8 8 8 9 12 12 11 6  
WIND GUST 18 20 23 26 26 24 19 18 18 19 18  
CLOUDS CL CL FW FW FW B1 B1 B2 B1 SC SC SC B1 B1 SC B1 B1 B1 B1 B1  
POP 12HR 0 60 60 30 70  
QPF 12HR 0 0.00-0.31 0.06-0.19 0.01 0.12-0.29  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS C L C C C L L L L C  
TSTMS S S S S S C C C C  
HEAT INDEX 82  
MAX HEAT 82 85  
 
DATE SUN 05/17/26 MON 05/18/26 TUE 05/19/26 WED 05/20/26  
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 63 87 67 86 68 80 62 75  
TEMP 67 64 84 83 71 68 84 82 72 69 79 77 67 62 74 73  
DEWPT 62 61 66 63 61 62 68 67 66 65 67 65 62 59 60 60  
PWIND DIR S S S S S SW S NW  
WIND CHAR LT GN GN BZ GN GN LT LT  
AVG CLOUDS SC SC SC FW FW FW FW SC SC B1 B1 B1 B1 B2 B1 B1  
POP 12HR 40 5 5 30 50 60 70 40  
RAIN SHWRS C C C C C L L L C C  
TSTMS C C C S S C C S S  
 
 
 
ILZ079-MOZ075-142100-  
RANDOLPH IL-SAINTE GENEVIEVE MO-  
INCLUDING THE CITIES OF CHESTER AND SPARTA  
901 AM CDT THU MAY 14 2026  
 
DATE THU 05/14/26 FRI 05/15/26 SAT 05/16/26  
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 75 54 81 65 84  
TEMP 63 70 74 72 62 59 57 55 64 75 80 79 72 69 67 66 74 81 84 81  
DEWPT 44 43 42 46 45 44 43 46 52 57 61 62 62 62 62 63 66 65 65 63  
RH 50 38 32 39 54 57 59 72 65 54 52 56 71 78 84 90 76 58 53 54  
WIND DIR SE SE SE SE SE S S SE S S S S S S S S SW S S S  
WIND SPD 2 3 4 5 5 6 9 10 12 12 11 8 8 9 9 9 10 10 11 10  
WIND GUST 17 21 23 25 24 21 19 20 20 21 23 21 20 23 20  
CLOUDS CL FW FW FW FW SC SC B1 B1 SC SC B1 B1 B1 B1 B1 B2 B1 B1 SC  
POP 12HR 0 30 50 20 50  
QPF 12HR 0 0.00-0.08 0.00-0.18 0.01 0.00-0.09  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS C S S C C C C  
TSTMS C S S S C C  
HEAT INDEX 80 83 86 82  
MAX HEAT 84 86 89  
 
DATE SUN 05/17/26 MON 05/18/26 TUE 05/19/26 WED 05/20/26  
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 64 89 69 88 69 82 62 78  
TEMP 70 65 86 86 73 70 86 85 75 69 81 80 68 62 76 76  
DEWPT 61 61 66 64 61 64 69 68 67 67 69 67 64 61 63 63  
PWIND DIR S S S S S SW S W  
WIND CHAR LT GN GN BZ GN GN LT LT  
AVG CLOUDS SC SC FW FW FW FW FW SC SC B1 B1 B1 B1 B1 B1 B1  
POP 12HR 10 5 5 30 50 60 70 50  
RAIN SHWRS C C C C L L L C C  
TSTMS C C S C C S S S  
 
 
 
MOZ059-062-072-073-142100-  
GASCONADE MO-FRANKLIN MO-CRAWFORD MO-WASHINGTON MO-  
INCLUDING THE CITIES OF WASHINGTON, UNION, AND SULLIVAN  
901 AM CDT THU MAY 14 2026  
 
DATE THU 05/14/26 FRI 05/15/26 SAT 05/16/26  
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 56 83 65 86  
TEMP 65 72 77 74 64 61 59 57 67 77 82 80 72 69 67 66 75 81 86 82  
DEWPT 45 43 44 48 45 44 45 48 55 59 62 63 62 61 60 61 65 65 64 63  
RH 48 35 31 40 50 53 60 72 65 54 51 56 71 76 78 84 71 58 48 53  
WIND DIR SE SE SE SE S S S S S S S S S S S S S S S S  
WIND SPD 3 4 5 4 4 5 6 6 9 10 9 5 4 4 4 5 6 8 8 5  
WIND GUST 17 19 20 25 26 26 23 23 19 20 20 20 20 20 20 23 20  
CLOUDS CL FW FW SC B1 SC B1 B1 SC SC B1 B1 SC SC B1 B2 B1 B1 SC SC  
POP 12HR 0 20 30 20 60  
QPF 12HR 0 0.00-0.07 0.00-0.09 0 0.02-0.14  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS S C S S S S L L C C S  
TSTMS S C S S S S S S C C S  
HEAT INDEX 83 81 83 87 83  
MAX HEAT 86 86 90  
 
DATE SUN 05/17/26 MON 05/18/26 TUE 05/19/26 WED 05/20/26  
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 64 91 70 88 68 81 60 78  
TEMP 70 65 87 86 75 71 85 85 75 68 78 78 67 61 75 75  
DEWPT 61 60 64 64 62 64 68 68 67 65 67 66 62 59 60 61  
PWIND DIR S S S S SW SW S N  
WIND CHAR LT GN GN GN GN LT LT LT  
AVG CLOUDS SC SC SC FW FW FW SC B1 SC B1 B1 B1 B2 B2 B1 B1  
POP 12HR 10 5 5 30 60 70 70 40  
RAIN SHWRS S C L C C L L L S C  
TSTMS S C C S S C C S S S  
 
 
 
ILZ102-MOZ065-142100-  
MONROE IL-JEFFERSON MO-  
901 AM CDT THU MAY 14 2026  
 
DATE THU 05/14/26 FRI 05/15/26 SAT 05/16/26  
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 76 55 82 65 86  
TEMP 64 71 75 73 63 59 57 56 65 76 81 80 72 69 67 65 76 82 86 83  
DEWPT 45 44 44 47 46 45 44 47 54 59 62 63 63 62 62 62 66 67 66 65  
RH 50 38 33 40 54 60 62 72 68 56 53 56 73 78 84 90 71 61 51 55  
WIND DIR SE SE SE SE SE SE S SE S S S S S S S S S S S S  
WIND SPD 3 3 5 5 4 5 6 6 9 10 9 6 5 5 5 5 8 6 8 6  
WIND GUST 16 14 17 19 21 21 23 19 18 18 19 19 18 19 18 20 19  
CLOUDS CL FW FW FW SC SC B1 B1 B1 SC SC B2 B1 B1 B1 B2 B2 B1 B1 SC  
POP 12HR 0 40 50 20 70  
QPF 12HR 0 0.00-0.14 0.00-0.21 0 0.05-0.15  
SNOW 12HR 00-00 00-00 00-00  
RAIN SHWRS S C S S L L C C  
TSTMS S C S S S S C C  
HEAT INDEX 82 81 84 88 84  
MAX HEAT 85 87 91  
 
DATE SUN 05/17/26 MON 05/18/26 TUE 05/19/26 WED 05/20/26  
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 64 91 69 89 69 82 62 78  
TEMP 70 65 88 87 74 70 86 86 75 69 80 79 68 62 76 75  
DEWPT 62 61 66 65 62 64 69 69 68 66 69 67 64 60 63 63  
PWIND DIR S S S S S SW S NW  
WIND CHAR LT GN GN GN GN GN LT LT  
AVG CLOUDS SC SC SC FW FW FW FW B1 SC B1 B1 B1 B1 B1 B1 B1  
POP 12HR 10 5 5 30 50 70 70 40  
RAIN SHWRS C C C C L L L C C  
TSTMS C C S S C C S S S  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab MO Page
The Nexlab IL Page
Main Text Page