513
FOUS53 KDMX 020627
PFMDMX
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE DES MOINES IA
127 AM CDT WED SEP 2 2026
IAZ060-030900-
DES MOINES-POLK IA
41.54N 93.65W ELEV. 924 FT
127 AM CDT WED SEP 2 2026
DATE 09/01/26 WED 09/02/26 THU 09/03/26 FRI
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 76 94 75 92 76
TEMP 79 78 84 91 93 89 82 80 78 76 82 89 91 88 83 82 79 77
DEWPT 67 66 68 69 70 71 68 67 67 67 70 72 72 72 70 70 69 68
RH 67 67 59 49 47 56 63 65 69 74 67 57 54 59 65 67 72 74
WIND DIR SW SW S SW SW S S S S S S SW S S SE S S S
WIND SPD 9 6 8 10 9 5 8 8 8 5 8 9 11 8 9 8 6 5
CLOUDS SC SC FW FW FW SC FW FW FW SC SC SC SC CL FW FW FW SC
POP 12HR 0 10 30 30 5
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C S
TSTMS C C S
HEAT INDEX 97 99 95 96 99 95 88
MAX HEAT 83 83 98 100 94 84 96 99 94 85
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE 09/04 SAT 09/05/26 SUN 09/06/26 MON 09/07/26 TUE 09/08/26
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 74 92 72 90 70 87 70 88
TEMP 90 90 79 74 89 89 77 74 87 86 75 72 84 84 75 71 85 84
DEWPT 72 73 71 70 72 73 71 70 71 71 69 68 69 69 66 64 67 67
PWIND DIR S S S SE SE SE SE SE S
WIND CHAR LT LT LT LT LT LT LT GN GN
AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC B1 SC B1 B1 B1 SC
POP 12HR 20 10 10 20 30 20 20 20 20
RAIN SHWRS S S S C S S S S S
TSTMS S S S C S S S S
IAZ039-030900-
WATERLOO/CEDAR FALLS-BLACK HAWK IA
42.55N 92.40W ELEV. 865 FT
127 AM CDT WED SEP 2 2026
DATE 09/01/26 WED 09/02/26 THU 09/03/26 FRI
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 88 72 87 73
TEMP 73 73 79 85 87 84 78 76 74 72 79 83 86 83 79 77 75 73
DEWPT 70 67 70 72 72 74 72 70 69 69 72 74 74 74 72 71 70 70
RH 90 81 74 65 61 72 82 82 84 90 79 74 68 74 79 82 84 90
WIND DIR S E SE SW S S SE SE S NW S S S SE S S S SE
WIND SPD 5 4 6 8 8 4 4 4 4 4 5 8 9 8 9 6 5 4
CLOUDS B2 SC SC SC SC FW FW FW SC B1 SC B1 FW FW FW FW SC SC
POP 12HR 20 10 40 50 40
QPF 12HR 0 0 0.01 0.02 0.05
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C C C C C S
TSTMS S C C C C C S
HEAT INDEX 91 94 91 90 94 90
MAX HEAT 91 94 90 91 95 86
DATE 09/04 SAT 09/05/26 SUN 09/06/26 MON 09/07/26 TUE 09/08/26
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 72 89 70 86 67 83 65 83
TEMP 87 86 76 72 86 84 74 72 83 82 72 68 80 78 70 67 80 80
DEWPT 75 76 73 71 75 74 71 70 72 71 68 67 70 68 65 63 68 68
PWIND DIR S SE SE SE SE SE SE SE SE
WIND CHAR LT LT LT LT LT LT GN GN GN
AVG CLOUDS SC SC FW SC SC SC FW FW B1 SC SC SC SC SC SC B1 B1 SC
POP 12HR 20 10 10 20 40 30 30 20 20
RAIN SHWRS S S S C C C C S S S S S
TSTMS S S C S S S S S S S
IAZ048-030900-
AMES-STORY IA
41.99N 93.62W ELEV. 936 FT
127 AM CDT WED SEP 2 2026
DATE 09/01/26 WED 09/02/26 THU 09/03/26 FRI
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 92 73 92 74
TEMP 74 75 80 88 91 87 80 77 75 74 80 86 91 87 81 79 77 75
DEWPT 68 66 69 70 71 72 71 68 68 68 70 72 73 73 72 70 70 69
RH 82 74 69 55 52 61 74 74 79 82 72 63 56 63 74 74 79 82
WIND DIR SW S S SW S S S S S SE S S S S S S S S
WIND SPD 6 5 6 9 9 4 4 5 5 4 6 9 10 8 8 6 5 4
CLOUDS SC SC SC SC SC SC FW FW FW SC SC SC SC CL FW FW SC SC
POP 12HR 10 10 50 50 20
QPF 12HR 0 0 0.01 0.01 0.02
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C C C S S S
TSTMS S C C C S S S
HEAT INDEX 93 98 94 92 99 94 86
MAX HEAT 94 98 92 92 100 92
DATE 09/04 SAT 09/05/26 SUN 09/06/26 MON 09/07/26 TUE 09/08/26
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 72 92 70 90 68 86 68 86
TEMP 90 89 77 73 88 87 75 72 86 85 73 70 82 82 72 69 82 82
DEWPT 73 75 72 70 73 73 71 70 72 72 70 68 69 70 67 64 68 68
PWIND DIR S SE S SE SE SE SE SE SE
WIND CHAR LT LT LT LT LT LT LT GN GN
AVG CLOUDS SC SC SC SC SC SC SC SC B1 SC SC SC B1 SC B1 B1 B1 SC
POP 12HR 20 10 10 30 30 20 30 10 20
RAIN SHWRS S S C C S S C S S
TSTMS S S C C S S S S
IAZ004-030900-
ESTHERVILLE-EMMET IA
43.40N 94.75W ELEV. 1315 FT
127 AM CDT WED SEP 2 2026
DATE 09/01/26 WED 09/02/26 THU 09/03/26 FRI
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 86 69 88 71
TEMP 66 67 73 80 85 82 73 72 71 69 76 83 86 84 77 75 73 71
DEWPT 66 66 69 71 71 72 70 69 67 66 69 71 72 72 71 69 67 67
RH 100 97 87 74 63 72 90 90 87 90 79 67 63 67 82 82 81 87
WIND DIR E E SE S S E E SE W SE S S S S S S S S
WIND SPD 6 3 3 3 4 4 5 5 8 9 11 12 12 8 9 9 9 8
CLOUDS B2 SC SC SC FW FW FW SC B2 B1 SC SC FW CL CL FW FW SC
POP 12HR 90 20 50 40 30
QPF 12HR 0.15 1.26 0.03 0.01 0.05
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS L S C C C C C S
TSTMS C S C C C C S S
HEAT INDEX 90 87 88 92 90
MAX HEAT 85 90 83 88 94 86
SVR TSTORM A
DATE 09/04 SAT 09/05/26 SUN 09/06/26 MON 09/07/26 TUE 09/08/26
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 70 87 68 85 66 81 65 81
TEMP 86 85 74 70 85 84 72 69 82 81 70 67 78 77 69 67 79 78
DEWPT 72 73 70 69 73 73 69 69 70 70 67 66 69 69 64 63 67 68
PWIND DIR S S S S S SE SE SE S
WIND CHAR GN LT LT LT LT LT GN GN BZ
AVG CLOUDS SC FW FW SC SC FW FW SC B1 SC SC SC B1 B1 B1 B1 B1 B1
POP 12HR 20 20 20 30 40 40 30 30 20
RAIN SHWRS S S S S C C S C C S S C S S
TSTMS S S S S C C S S S S S C S S
IAZ035-030900-
FORT DODGE-WEBSTER IA
42.55N 94.18W ELEV. 1165 FT
127 AM CDT WED SEP 2 2026
DATE 09/01/26 WED 09/02/26 THU 09/03/26 FRI
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 89 70 89 73
TEMP 71 71 76 84 88 85 77 75 73 71 77 84 88 86 79 77 75 73
DEWPT 69 67 69 70 70 72 72 69 68 68 71 72 73 73 72 69 68 68
RH 93 87 79 63 55 65 85 82 84 90 82 67 61 65 79 76 79 84
WIND DIR NE E SE S S S SE S S W S S S S S S S S
WIND SPD 5 4 4 5 5 3 3 4 5 5 8 10 9 5 6 5 6 5
CLOUDS B2 B1 B1 FW FW FW FW SC SC B1 B1 FW FW CL FW FW SC B1
POP 12HR 20 30 50 50 40
QPF 12HR 0 10.00 0.04 0.02 0.04
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S C C C C C C C C
TSTMS S S C C C C C C C S
HEAT INDEX 93 91 90 96 92
MAX HEAT 88 94 88 90 96 90
DATE 09/04 SAT 09/05/26 SUN 09/06/26 MON 09/07/26 TUE 09/08/26
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 71 91 70 89 67 85 66 85
TEMP 88 87 75 72 87 86 74 71 85 84 72 69 82 80 71 68 81 81
DEWPT 73 74 71 70 74 73 70 70 72 71 68 67 70 70 66 63 69 69
PWIND DIR S SE S SE SE SE SE SE S
WIND CHAR LT LT LT LT LT LT LT GN GN
AVG CLOUDS SC SC SC SC SC SC FW SC B1 SC SC B1 B1 SC B1 B1 B1 B1
POP 12HR 30 10 10 30 40 40 30 20 20
RAIN SHWRS C S C C S S C C S S S
TSTMS S S C C S S C S S S
IAZ094-030900-
LAMONI-DECATUR IA
40.63N 93.90W ELEV. 1125 FT
127 AM CDT WED SEP 2 2026
DATE 09/01/26 WED 09/02/26 THU 09/03/26 FRI
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 75 94 76 93 75
TEMP 77 77 84 91 93 89 84 81 78 76 83 90 92 88 83 81 78 76
DEWPT 66 65 67 68 66 67 66 66 66 66 69 70 70 68 69 69 68 68
RH 69 67 57 47 41 48 55 60 67 71 63 52 49 52 63 67 71 76
WIND DIR S S SW SW SW S S S S S SW S S S S S S S
WIND SPD 8 8 11 11 11 8 8 8 8 6 10 11 11 9 8 6 6 5
CLOUDS SC SC FW FW FW FW FW FW FW FW FW FW FW CL FW FW FW SC
POP 12HR 0 5 10 5 0
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
HEAT INDEX 96 98 93
MAX HEAT 96 98 90 83 97 98 91 83
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE 09/04 SAT 09/05/26 SUN 09/06/26 MON 09/07/26 TUE 09/08/26
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 74 92 72 90 70 88 70 88
TEMP 91 89 79 74 89 88 77 74 88 86 75 72 85 84 75 72 86 85
DEWPT 70 70 69 68 70 70 69 69 69 69 69 68 68 67 66 63 66 66
PWIND DIR S S S SE S SE SE SE S
WIND CHAR GN LT LT LT LT LT LT GN GN
AVG CLOUDS FW SC SC SC SC SC SC SC SC SC SC SC B1 SC SC B1 B1 B1
POP 12HR 5 5 10 20 20 20 20 20 20
RAIN SHWRS S S S S S S S S S
TSTMS S S S S S S S S
IAZ017-030900-
MASON CITY-CERRO GORDO IA
43.16N 93.33W ELEV. 1189 FT
127 AM CDT WED SEP 2 2026
DATE 09/01/26 WED 09/02/26 THU 09/03/26 FRI
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 85 69 85 70
TEMP 68 68 75 81 84 81 74 72 71 70 77 81 84 81 76 75 72 71
DEWPT 68 67 70 71 71 73 71 70 69 68 71 73 73 73 72 70 69 69
RH 100 97 84 72 65 77 90 93 93 93 82 77 70 77 87 84 90 93
WIND DIR N E S SW S SE SE SE S E SE S S SE S S S S
WIND SPD 6 4 4 4 2 3 3 3 4 5 8 9 9 8 8 6 6 5
CLOUDS B2 B2 SC SC FW FW FW SC B1 B1 B1 SC CL FW FW FW SC SC
POP 12HR 60 30 50 60 50
QPF 12HR 0.05 10.00 0.04 0.03 0.10
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C S C C L S C C C
TSTMS C C S C C C S C C S
HEAT INDEX 89 86 86 90 86
MAX HEAT 85 90 86 90 84
SVR TSTORM A
DATE 09/04 SAT 09/05/26 SUN 09/06/26 MON 09/07/26 TUE 09/08/26
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 70 87 68 85 66 81 63 80
TEMP 85 85 74 71 84 83 72 70 82 80 70 67 78 77 67 65 77 76
DEWPT 74 75 72 70 74 73 70 70 71 70 67 67 69 68 65 63 68 68
PWIND DIR S SE SE SE S SE SE SE SE
WIND CHAR LT LT LT LT LT LT GN GN GN
AVG CLOUDS SC FW FW SC SC FW FW SC B1 SC SC SC B1 B1 B1 B1 B1 B1
POP 12HR 30 10 10 30 50 40 30 30 30
RAIN SHWRS C S C C S C C C S S C C S
TSTMS S S C C S S S S S S C S S
IAZ049-030900-
MARSHALLTOWN-MARSHALL IA
42.11N 92.91W ELEV. 972 FT
127 AM CDT WED SEP 2 2026
DATE 09/01/26 WED 09/02/26 THU 09/03/26 FRI
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 91 72 90 73
TEMP 74 74 81 88 90 85 78 76 74 73 79 85 89 85 80 77 75 74
DEWPT 67 66 69 69 70 72 70 68 67 67 71 72 72 72 71 70 69 68
RH 79 76 67 54 52 65 76 76 79 81 77 65 57 65 74 79 82 82
WIND DIR S E S SW SW S S S S S S S S SE S S S S
WIND SPD 6 5 6 9 8 4 4 5 5 3 5 6 9 6 8 6 5 4
CLOUDS B1 FW SC SC FW FW FW FW FW SC SC SC SC CL FW FW FW SC
POP 12HR 10 10 40 40 20
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C S S S S
TSTMS C C S S S S
HEAT INDEX 96 91 91 96 91
MAX HEAT 83 92 96 89 91 97 88
DATE 09/04 SAT 09/05/26 SUN 09/06/26 MON 09/07/26 TUE 09/08/26
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 71 91 69 89 67 85 66 85
TEMP 89 87 75 72 87 86 74 71 85 83 72 69 81 80 70 67 81 80
DEWPT 73 74 72 70 73 73 70 70 71 71 68 66 68 68 65 63 68 67
PWIND DIR S S S SE SE SE SE SE SE
WIND CHAR LT LT LT LT LT LT LT GN GN
AVG CLOUDS SC SC SC SC SC SC FW SC SC SC SC SC B1 SC B1 B1 B1 B1
POP 12HR 20 10 10 20 30 30 30 20 20
RAIN SHWRS S S S C S C C S S S S
TSTMS S S S C S S S S S S
IAZ086-030900-
OTTUMWA-WAPELLO IA
41.11N 92.45W ELEV. 836 FT
127 AM CDT WED SEP 2 2026
DATE 09/01/26 WED 09/02/26 THU 09/03/26 FRI
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 77 92 76
TEMP 77 78 85 91 94 89 83 80 79 77 84 89 91 88 82 80 78 77
DEWPT 68 68 71 71 71 71 70 69 68 69 72 73 73 73 72 71 70 70
RH 74 71 63 52 47 56 65 69 69 76 67 59 56 61 72 74 76 79
WIND DIR S SW SW SW SW S S S S SW SW SW S S S S S S
WIND SPD 8 8 10 11 10 6 8 6 6 5 8 9 9 6 6 5 5 5
CLOUDS SC SC SC FW FW FW FW FW FW FW SC FW FW FW FW FW FW SC
POP 12HR 0 5 10 5 5
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
HEAT INDEX 90 99101 95 89 97100 96 87
MAX HEAT 100 101 93 83 97 100 92
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE 09/04 SAT 09/05/26 SUN 09/06/26 MON 09/07/26 TUE 09/08/26
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 74 92 72 90 70 87 69 88
TEMP 91 89 77 74 89 87 76 74 86 85 74 72 84 83 73 70 84 84
DEWPT 73 74 72 72 74 74 71 72 73 72 70 69 70 70 67 65 69 69
PWIND DIR SW S S SE SE SE S SE S
WIND CHAR LT LT LT LT LT LT LT GN GN
AVG CLOUDS SC SC FW SC SC FW FW SC B1 SC FW SC B1 SC SC SC B1 SC
POP 12HR 10 10 20 20 30 20 20 20 20
RAIN SHWRS S S S C S S S S S S
TSTMS S S S C S S S
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page