161
FOUS53 KDMX 031927
PFMDMX
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE DES MOINES IA
227 PM CDT THU SEP 3 2026
IAZ060-040900-
DES MOINES-POLK IA
41.54N 93.65W ELEV. 924 FT
227 PM CDT THU SEP 3 2026
DATE 09/03/26 FRI 09/04/26 SAT 09/05/26 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 76 96 73 94 71
TEMP 95 88 82 81 79 77 86 93 96 92 82 78 75 73 84 93 94 90 80 76 74 71
DEWPT 71 70 69 67 67 68 70 72 71 72 71 70 70 69 72 73 72 73 73 73 72 71
RH 46 55 65 63 67 74 59 51 45 52 69 76 84 87 67 52 49 58 79 90 93100
WIND DIR S S S S S SW SW SW SW S S S S S NW E E E E E E E
WIND SPD 11 8 6 8 8 8 10 10 9 4 4 3 2 2 3 3 4 4 5 5 5 5
CLOUDS SC FW CL FW FW FW CL FW FW SC FW FW FW CL FW FW FW SC 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 103 93 91101104 99 90101103 98 85
MAX HEAT 103 91 84 102 106 97 103 105 96
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE 09/06 MON 09/07/26 TUE 09/08/26 WED 09/09/26 THU 09/10/26
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 70 90 73 96 75 92 70 88
TEMP 87 85 75 72 87 87 78 75 94 92 80 76 90 87 76 71 85 82
DEWPT 72 70 68 66 67 65 63 62 67 67 65 65 66 67 65 63 62 62
PWIND DIR E SE SE SE S S SW SW NW
WIND CHAR LT GN GN GN GN GN LT LT GN
AVG CLOUDS SC SC SC SC SC SC SC SC SC SC SC SC B1 SC SC SC SC SC
POP 12HR 30 10 10 20 20 40 30 20 20
RAIN SHWRS C S S S S C C S S S S S
TSTMS S S S S S C S S
IAZ039-040900-
WATERLOO/CEDAR FALLS-BLACK HAWK IA
42.55N 92.40W ELEV. 865 FT
227 PM CDT THU SEP 3 2026
DATE 09/03/26 FRI 09/04/26 SAT 09/05/26 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 92 70 88 67
TEMP 88 84 80 78 75 73 81 88 91 87 78 75 72 70 81 87 88 84 76 72 69 67
DEWPT 72 73 70 69 68 68 72 75 75 76 73 72 70 70 73 76 75 75 73 71 69 67
RH 59 70 72 74 79 84 74 66 60 70 85 90 93100 77 70 66 74 90 97100100
WIND DIR S S S S S SE S S SW S SE E E NE E E E E E E SE E
WIND SPD 11 6 6 8 6 5 6 9 6 3 3 2 2 2 3 4 5 5 6 5 5 5
CLOUDS SC CL FW FW FW SC FW FW FW SC FW FW SC FW FW FW FW FW FW FW SC SC
POP 12HR 10 20 10 0 5
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S
TSTMS S
HEAT INDEX 95 90 86 98102 98 97 99 93
MAX HEAT 96 88 99 105 95 98 100 88
DATE 09/06 MON 09/07/26 TUE 09/08/26 WED 09/09/26 THU 09/10/26
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 83 65 83 68 89 70 86 65 82
TEMP 80 80 70 66 79 79 72 69 85 85 75 71 84 81 71 66 80 77
DEWPT 72 70 67 63 68 67 63 61 70 70 66 65 68 68 64 61 63 63
PWIND DIR SE SE SE SE S S SW W NW
WIND CHAR LT GN GN GN GN GN GN LT GN
AVG CLOUDS B1 SC SC SC B1 B1 SC SC B1 SC SC B1 B1 SC SC SC SC SC
POP 12HR 10 5 10 20 30 60 20 30 20
RAIN SHWRS S C S C L S S C S
TSTMS S S C C
IAZ048-040900-
AMES-STORY IA
41.99N 93.62W ELEV. 936 FT
227 PM CDT THU SEP 3 2026
DATE 09/03/26 FRI 09/04/26 SAT 09/05/26 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 70 93 69
TEMP 90 85 80 77 76 74 83 91 94 91 79 76 73 71 83 91 93 88 78 74 72 70
DEWPT 73 72 70 68 68 68 71 73 73 74 73 72 71 70 72 74 74 75 75 73 72 70
RH 58 65 72 74 76 82 67 56 51 58 82 87 93 97 70 58 54 66 91 97100100
WIND DIR S S S S S S SW S SW W S S SE E E E E E E E SE E
WIND SPD 10 6 6 6 6 5 8 9 8 3 2 1 1 1 3 3 4 4 5 4 4 5
CLOUDS SC FW FW FW FW FW CL FW FW SC SC SC FW FW FW SC FW FW FW SC SC SC
POP 12HR 5 10 5 5 5
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C
TSTMS S
HEAT INDEX 98 92 88101103100 88102103 98
MAX HEAT 98 88 102 106 98 103 105 95
HEAT Y Y Y Y Y Y Y Y Y Y
DATE 09/06 MON 09/07/26 TUE 09/08/26 WED 09/09/26 THU 09/10/26
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 68 88 71 95 71 90 67 86
TEMP 84 83 72 69 85 85 75 73 91 89 77 73 87 85 73 68 83 80
DEWPT 73 71 69 66 68 67 64 62 69 70 67 65 68 68 65 62 63 63
PWIND DIR SE SE SE SE S SW SW W NW
WIND CHAR LT GN GN GN GN LT LT LT GN
AVG CLOUDS SC SC SC SC SC B1 SC SC B1 SC SC B1 B1 SC SC SC SC SC
POP 12HR 40 10 10 20 30 50 30 20 20
RAIN SHWRS C C S C C C C C S S S S
TSTMS S S S S C C
IAZ004-040900-
ESTHERVILLE-EMMET IA
43.40N 94.75W ELEV. 1315 FT
227 PM CDT THU SEP 3 2026
DATE 09/03/26 FRI 09/04/26 SAT 09/05/26 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 69 90 68
TEMP 89 86 80 77 73 71 81 87 90 87 75 72 70 69 80 87 90 86 75 72 70 68
DEWPT 71 71 70 68 67 67 70 71 71 72 71 70 68 68 71 72 71 72 72 70 69 68
RH 56 61 72 74 81 87 69 59 54 61 87 93 93 97 74 61 54 63 90 93 97100
WIND DIR S S S S S SW W NE NE NE E E E E SE E E E SE SE SE SE
WIND SPD 17 10 9 9 9 6 6 4 4 4 3 3 3 3 4 6 8 6 8 8 8 8
CLOUDS FW FW FW FW FW FW FW FW CL CL FW CL FW FW SC SC FW SC SC SC SC B1
POP 12HR 20 5 10 5 30
QPF 12HR 0.03 0 0 0 0.03
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C C C
TSTMS S C C C
HEAT INDEX 95 91 93 96 94 94 96 92
MAX HEAT 95 86 93 99 90 94 97 87
DATE 09/06 MON 09/07/26 TUE 09/08/26 WED 09/09/26 THU 09/10/26
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 67 84 70 87 66 84 61 81
TEMP 81 82 70 68 81 82 73 72 84 83 71 67 81 80 66 62 78 76
DEWPT 71 71 68 66 69 69 64 63 69 70 65 63 66 65 60 57 61 62
PWIND DIR SE SE S S S SW SW NW NW
WIND CHAR GN GN BZ BZ BZ LT LT LT GN
AVG CLOUDS B1 SC SC B1 B1 B2 SC B1 B2 B1 SC SC SC SC FW SC B1 SC
POP 12HR 50 50 50 50 50 40 10 30 20
RAIN SHWRS C S S C C C C C C C C C S C S
TSTMS C S S C S C S C S S S
IAZ035-040900-
FORT DODGE-WEBSTER IA
42.55N 94.18W ELEV. 1165 FT
227 PM CDT THU SEP 3 2026
DATE 09/03/26 FRI 09/04/26 SAT 09/05/26 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 69 92 68
TEMP 87 84 79 78 75 72 83 90 93 89 77 74 71 70 82 90 92 87 76 72 71 69
DEWPT 73 73 70 68 67 67 71 73 73 74 73 71 70 69 73 74 73 74 74 72 71 69
RH 63 70 74 71 76 84 67 58 52 61 87 90 97 97 74 60 54 65 94100100100
WIND DIR S S S S S S SW S SW S E SE E E E SE E E E SE SE SE
WIND SPD 13 8 8 8 8 5 8 6 5 2 2 1 2 1 2 3 4 4 5 4 5 5
CLOUDS FW FW SC FW FW FW FW FW FW FW FW FW SC SC FW FW FW FW SC SC SC B1
POP 12HR 20 10 5 5 10
QPF 12HR 0.04 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C
TSTMS S C
HEAT INDEX 94 90 98102 97 87 98100 96
MAX HEAT 96 87 100 103 92 99 102 91
DATE 09/06 MON 09/07/26 TUE 09/08/26 WED 09/09/26 THU 09/10/26
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 67 87 71 91 69 87 64 84
TEMP 83 82 72 69 83 83 75 73 88 85 74 70 85 82 70 65 81 78
DEWPT 73 72 68 66 70 69 64 62 70 71 67 64 68 68 63 60 63 63
PWIND DIR SE SE SE SE S S S NW W
WIND CHAR LT GN GN GN GN LT LT LT LT
AVG CLOUDS B1 SC SC SC B1 B1 SC B1 B2 SC SC B1 B2 SC SC SC B1 SC
POP 12HR 40 30 20 30 40 60 20 20 20
RAIN SHWRS C C C S C C C L L S S S S
TSTMS C S C S S S S C S
IAZ094-040900-
LAMONI-DECATUR IA
40.63N 93.90W ELEV. 1125 FT
227 PM CDT THU SEP 3 2026
DATE 09/03/26 FRI 09/04/26 SAT 09/05/26 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 74 93 72 94 71
TEMP 94 89 82 80 77 75 84 90 93 90 82 78 75 73 84 92 94 91 81 77 74 72
DEWPT 70 70 69 67 67 68 70 70 70 69 69 69 69 68 69 70 68 69 70 71 71 70
RH 46 54 65 65 71 79 63 52 47 50 65 74 82 84 61 49 43 49 69 82 90 93
WIND DIR S S S S SW SW SW SW S S S S S S SW W NE E E E E E
WIND SPD 11 8 6 8 8 8 11 11 10 6 3 3 3 2 3 3 3 2 3 4 4 4
CLOUDS FW CL FW FW FW FW FW FW FW SC SC FW FW SC FW FW FW SC FW SC FW SC
POP 12HR 0 5 10 0 0
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
HEAT INDEX 100 94 97 99 95 89 98 99 96
MAX HEAT 103 91 82 98 101 93 100 102 93
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE 09/06 MON 09/07/26 TUE 09/08/26 WED 09/09/26 THU 09/10/26
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 69 91 72 96 75 93 72 88
TEMP 88 86 75 71 88 88 78 74 94 93 81 76 91 88 78 72 86 83
DEWPT 70 69 68 65 66 65 62 61 66 65 64 63 65 65 64 62 62 61
PWIND DIR E SE SE SE S S SW S E
WIND CHAR LT LT GN GN GN GN GN GN GN
AVG CLOUDS SC SC SC SC SC SC SC SC SC FW FW SC SC FW SC SC SC SC
POP 12HR 20 5 5 0 20 20 30 20 20
RAIN SHWRS S S S S C S S S S S
TSTMS S S S S S
IAZ017-040900-
MASON CITY-CERRO GORDO IA
43.16N 93.33W ELEV. 1189 FT
227 PM CDT THU SEP 3 2026
DATE 09/03/26 FRI 09/04/26 SAT 09/05/26 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 67 87 66
TEMP 84 82 77 75 73 71 80 87 89 86 75 72 69 68 79 85 87 83 74 71 68 67
DEWPT 71 73 71 68 68 68 72 73 73 74 72 71 69 68 73 74 73 74 72 70 68 67
RH 65 74 82 79 84 90 77 63 59 68 90 97100100 82 70 63 74 93 97100100
WIND DIR S S S S S S S S SW NE E E NE NE E E E E E SE SE SE
WIND SPD 13 8 6 8 6 5 8 6 4 2 2 1 1 1 3 4 4 4 5 5 5 6
CLOUDS FW FW SC SC SC FW SC FW CL FW FW FW SC B1 SC SC SC FW FW SC B1 B1
POP 12HR 30 10 5 5 10
QPF 12HR 0.02 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C C
TSTMS S S S
HEAT INDEX 89 87 93 97 94 93 94 90
MAX HEAT 91 84 94 98 89 93 96 84
DATE 09/06 MON 09/07/26 TUE 09/08/26 WED 09/09/26 THU 09/10/26
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 82 68 87 67 84 62 81
TEMP 79 79 69 66 78 79 71 69 83 82 72 68 81 79 67 63 78 75
DEWPT 71 71 67 65 69 68 63 62 70 70 66 64 67 66 61 58 62 62
PWIND DIR SE SE SE SE S S SW NW NW
WIND CHAR GN GN GN BZ GN LT LT LT GN
AVG CLOUDS B1 B1 SC B1 B1 B1 SC B1 B2 SC SC B1 B1 SC SC SC B1 SC
POP 12HR 40 20 20 40 40 50 10 40 20
RAIN SHWRS C C S S S C C C C C S C C S
TSTMS S S S S S C S
IAZ049-040900-
MARSHALLTOWN-MARSHALL IA
42.11N 92.91W ELEV. 972 FT
227 PM CDT THU SEP 3 2026
DATE 09/03/26 FRI 09/04/26 SAT 09/05/26 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 69 91 67
TEMP 92 86 80 77 75 73 82 90 93 88 78 74 72 70 81 89 91 85 76 73 70 68
DEWPT 71 71 69 68 67 67 71 72 73 73 72 71 70 69 72 74 74 74 73 72 70 68
RH 51 61 69 74 76 81 69 56 52 61 82 90 93 97 74 61 58 70 90 97100100
WIND DIR S S S S S S S S SW S SE S SE NE NE E NE E E E E E
WIND SPD 11 6 6 8 6 5 8 8 6 2 2 2 2 2 2 2 3 4 5 5 5 5
CLOUDS FW FW FW FW FW FW CL FW FW SC FW SC SC FW FW FW FW FW FW FW FW SC
POP 12HR 5 5 10 0 5
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S
TSTMS S S
HEAT INDEX 99 91 87 98102 97 86 98100 93
MAX HEAT 99 88 100 105 93 101 103 90
HEAT Y Y Y Y Y Y Y Y Y Y
DATE 09/06 MON 09/07/26 TUE 09/08/26 WED 09/09/26 THU 09/10/26
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 86 65 87 68 93 70 89 65 85
TEMP 83 82 70 67 83 82 73 70 89 87 76 72 86 83 71 66 82 78
DEWPT 71 70 67 63 66 65 62 61 68 68 65 64 67 67 64 60 62 62
PWIND DIR E SE SE SE S S SW SW NW
WIND CHAR LT LT GN GN GN LT LT LT LT
AVG CLOUDS B1 SC SC SC SC B1 SC SC B1 SC SC B1 B1 SC SC SC SC SC
POP 12HR 20 10 10 20 30 60 30 30 20
RAIN SHWRS S S C S S L C S C S
TSTMS S S S S S C
IAZ086-040900-
OTTUMWA-WAPELLO IA
41.11N 92.45W ELEV. 836 FT
227 PM CDT THU SEP 3 2026
DATE 09/03/26 FRI 09/04/26 SAT 09/05/26 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 76 95 73 94 70
TEMP 96 89 82 81 79 77 87 93 95 91 81 78 75 73 85 93 94 89 79 75 72 70
DEWPT 69 70 70 69 68 69 72 73 72 73 72 71 71 71 73 73 73 74 75 74 72 70
RH 42 54 67 67 69 76 61 52 48 56 74 79 87 93 67 52 51 61 88 97100100
WIND DIR SW S S S S SW SW SW SW SW S SW SW W W N NE NE E E E E
WIND SPD 10 6 5 6 6 6 9 10 9 5 4 3 3 2 3 3 3 4 5 5 5 5
CLOUDS FW FW FW CL CL FW FW FW CL FW B1 FW CL FW FW FW FW FW FW FW FW SC
POP 12HR 0 5 20 5 5
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S
TSTMS S
HEAT INDEX 102 94 94102104 99 92102103 98
MAX HEAT 107 91 84 102 105 96 103 106 95
HEAT Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
DATE 09/06 MON 09/07/26 TUE 09/08/26 WED 09/09/26 THU 09/10/26
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 68 89 71 96 75 94 71 88
TEMP 85 85 73 69 86 86 75 73 94 92 81 76 91 88 77 72 86 83
DEWPT 72 71 68 66 67 66 63 61 67 68 66 65 67 68 66 64 64 63
PWIND DIR E SE SE SE S S SW S N
WIND CHAR LT LT GN GN GN GN GN LT GN
AVG CLOUDS SC SC SC SC SC SC FW SC SC SC FW SC B1 SC SC SC SC SC
POP 12HR 10 5 5 5 20 40 30 30 20
RAIN SHWRS S S C C S C S
TSTMS S S S
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