Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
531 FOUS53 KDMX 061827 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 127 PM CDT Sun Sep 6 2026 IAZ060-062100- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 127 PM CDT Sun Sep 6 2026 Date Sun 09/06/26 Mon 09/07/26 Tue 09/08/26 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 85 68 86 69 94 Temp 85 78 75 73 70 68 73 81 85 83 76 73 71 70 79 90 94 88 Dewpt 71 70 70 68 66 64 64 65 67 64 61 60 59 59 64 70 72 73 RH 63 76 84 84 87 87 73 58 55 53 60 64 66 68 60 52 49 61 Wind dir E E E SE SE SE SE SE SE SE SE SE SE S S S SW S Wind spd 9 6 9 6 8 9 10 11 12 11 12 11 11 10 9 10 10 8 Clouds B1 B2 B2 B1 B2 B1 B1 B1 FW FW SC B1 B1 SC SC SC SC B1 PoP 12hr 20 40 30 5 30 QPF 12hr 0.13 0 0.07 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C S C C C L Tstms S S C Heat index 90 96102 96 Max heat 92 93 83 89 83 98 105 Date Wed 09/09/26 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 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 70 84 62 81 62 86 65 85 Temp 75 70 81 80 67 62 78 78 66 62 82 82 70 66 82 81 Dewpt 72 70 66 64 61 58 59 61 59 58 64 66 64 62 65 65 PWind dir SW W NW NW S S S NE Wind char LT LT LT LT LT GN LT GN Avg clouds B1 B2 B1 SC SC FW FW FW CL FW FW FW SC FW SC SC PoP 12hr 90 20 5 5 5 20 40 20 Rain shwrs L D S S C C S Tstms C C S S C S $$ IAZ039-062100- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 127 PM CDT Sun Sep 6 2026 Date Sun 09/06/26 Mon 09/07/26 Tue 09/08/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 63 80 64 87 Temp 78 75 71 69 65 63 71 77 80 77 70 68 66 65 73 82 86 83 Dewpt 68 69 67 66 63 59 62 63 62 62 61 59 58 58 63 67 70 71 RH 71 82 87 90 93 87 73 62 54 60 73 73 75 78 71 61 59 67 Wind dir E E SE SE SE SE SE SE SE SE SE SE S S S S S S Wind spd 9 5 8 8 9 9 11 12 13 12 14 13 13 11 11 11 11 8 Clouds B2 B2 B2 B1 B1 B1 SC B1 B1 FW B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 10 10 5 30 50 QPF 12hr 0 0 0 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C D Tstms C S C C Heat index 91 88 Max heat 81 85 92 Date Wed 09/09/26 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 68 81 57 78 57 82 61 81 Temp 73 68 78 75 63 57 75 74 62 58 79 78 67 62 78 76 Dewpt 71 68 63 60 58 54 57 59 57 56 62 63 61 58 63 63 PWind dir SW W NW NW S S S N Wind char LT GN LT LT LT GN GN GN Avg clouds B2 B2 B1 FW FW FW FW FW CL FW FW FW FW SC SC SC PoP 12hr 90 10 0 0 5 10 40 30 Rain shwrs D D C C C Tstms C S S S S $$ IAZ048-062100- Ames-Story IA 41.99N 93.62W Elev. 936 ft 127 PM CDT Sun Sep 6 2026 Date Sun 09/06/26 Mon 09/07/26 Tue 09/08/26 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 65 84 67 91 Temp 82 76 72 71 68 66 72 79 82 81 74 71 69 68 77 87 90 85 Dewpt 72 70 70 68 66 64 64 66 67 64 62 60 59 59 64 71 74 74 RH 72 82 93 90 93 93 76 64 61 56 66 68 70 73 64 59 60 70 Wind dir E E SE SE SE SE SE SE SE SE SE SE S S S S SW W Wind spd 8 4 8 6 8 9 11 12 12 11 13 11 11 10 10 10 9 5 Clouds B2 B2 B2 B2 B1 B1 B2 B1 SC FW SC B1 SC SC B1 SC B1 B2 PoP 12hr 20 40 40 10 50 QPF 12hr 0.19 0 0.04 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C S S S S S C C D Tstms S C Heat index 87 93100 94 Max heat 87 85 95 102 Date Wed 09/09/26 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 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 67 83 59 81 60 84 63 84 Temp 73 68 80 78 64 59 77 76 64 61 81 80 68 64 80 79 Dewpt 72 68 65 63 60 56 59 62 59 58 65 66 64 61 65 65 PWind dir W NW NW NW S S SW NE Wind char LT LT LT LT LT GN LT GN Avg clouds B2 B2 B1 SC FW FW FW FW FW FW SC SC SC SC SC B1 PoP 12hr 90 10 0 0 20 20 40 30 Rain shwrs D D S S C C C Tstms C C S S S $$ IAZ004-062100- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 127 PM CDT Sun Sep 6 2026 Date Sun 09/06/26 Mon 09/07/26 Tue 09/08/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 65 81 67 84 Temp 76 72 70 69 68 66 72 77 80 79 72 71 69 67 74 81 83 80 Dewpt 70 69 69 67 65 64 67 68 70 68 64 60 60 61 67 71 72 72 RH 82 90 97 93 90 93 84 74 72 69 76 68 73 81 79 72 70 77 Wind dir SE SE S SE SE SE S S S SE S S S S S SW SW SW Wind spd 9 8 11 11 12 14 17 19 19 18 20 19 19 16 13 11 10 5 Wind gust 31 33 29 31 31 29 26 Clouds B2 B2 B1 B1 B1 B2 B2 B1 B1 SC SC B1 B1 B1 B2 B2 B1 SC PoP 12hr 80 60 40 50 60 QPF 12hr 0.17 0.70 0.61 0.05 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs L L C S C C C C L L C C S Tstms C C S S C C S S S S Heat index 88 Max heat 86 85 89 Flood A A A A Date Wed 09/09/26 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 62 78 54 79 59 82 59 78 Temp 68 62 75 75 59 55 76 75 62 60 79 78 64 59 75 74 Dewpt 64 55 59 60 55 52 58 61 56 54 64 65 58 54 60 61 PWind dir W NW NW W S S NW N Wind char LT GN LT LT GN BZ GN GN Avg clouds SC FW FW FW CL FW FW FW CL FW FW FW FW FW SC SC PoP 12hr 20 0 0 0 10 20 20 30 Rain shwrs S S S C Tstms S S S $$ IAZ035-062100- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 127 PM CDT Sun Sep 6 2026 Date Sun 09/06/26 Mon 09/07/26 Tue 09/08/26 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 64 83 66 88 Temp 79 74 71 69 68 66 72 78 82 80 73 71 68 67 75 83 87 82 Dewpt 72 71 70 68 67 65 66 68 69 67 62 60 59 60 67 73 75 76 RH 79 90 97 97 97 97 81 71 65 65 68 68 73 78 76 72 68 82 Wind dir E SE SE SE SE SE SE SE SE SE SE S S S S S SW W Wind spd 9 6 8 6 9 10 11 14 14 12 14 14 13 11 10 10 8 3 Clouds B2 B2 B2 B2 B2 OV B2 B1 SC B1 SC B1 B1 B1 B1 B1 B1 B1 PoP 12hr 50 70 40 30 70 QPF 12hr 0.28 0.11 0.20 0 0.08 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L S C C S S C C L L D Tstms S S S S S S S C C Heat index 89 96 88 Max heat 86 86 87 90 98 Date Wed 09/09/26 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 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 81 55 80 59 83 60 82 Temp 70 64 78 76 61 56 76 76 62 60 79 79 66 61 78 76 Dewpt 70 64 62 63 58 54 59 63 58 57 66 68 62 58 64 65 PWind dir SW NW NW W S S SW NE Wind char LT LT LT LT LT GN LT GN Avg clouds B2 B1 SC FW FW FW SC FW CL FW SC FW FW SC B1 B1 PoP 12hr 80 5 0 0 20 20 40 30 Rain shwrs D C S S C S C Tstms C S S S S S $$ IAZ094-062100- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 127 PM CDT Sun Sep 6 2026 Date Sun 09/06/26 Mon 09/07/26 Tue 09/08/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 67 88 69 95 Temp 88 80 74 73 69 67 75 84 88 85 77 74 71 70 81 92 95 90 Dewpt 74 71 70 68 66 63 63 65 65 64 60 58 57 58 63 68 68 68 RH 63 74 87 84 90 87 66 53 47 50 56 57 61 66 54 46 42 49 Wind dir E NE NE SE SE SE SE SE SE SE SE SE S S S SW S S Wind spd 8 6 8 8 8 9 10 11 12 11 11 11 11 10 10 12 12 9 Wind gust 17 Clouds B1 B2 B1 B2 B1 B1 B1 B1 FW FW SC SC SC SC SC FW SC SC PoP 12hr 20 40 30 0 10 QPF 12hr 0.13 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C C Tstms S C Heat index 97 100 Max heat 99 99 86 91 84 97 101 Date Wed 09/09/26 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 71 85 62 81 61 85 65 86 Temp 78 71 82 80 67 62 79 77 65 62 82 82 70 65 83 81 Dewpt 69 70 69 66 63 59 59 61 59 58 64 65 64 63 66 65 PWind dir SE NW N N SE S S SE Wind char LT LT LT LT LT GN LT GN Avg clouds B1 B2 B2 SC SC SC SC FW FW FW SC FW SC SC SC SC PoP 12hr 80 50 20 5 10 20 30 30 Rain shwrs C D C S S S S C C S C Tstms C C S S S S C C S S $$ IAZ017-062100- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 127 PM CDT Sun Sep 6 2026 Date Sun 09/06/26 Mon 09/07/26 Tue 09/08/26 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 62 80 63 84 Temp 76 73 70 67 65 63 70 75 78 76 70 68 66 64 72 80 83 79 Dewpt 69 68 67 66 64 62 64 65 65 63 61 59 58 58 65 69 71 72 RH 79 84 90 97 97 97 81 71 64 64 73 73 75 81 79 69 67 79 Wind dir SE SE SE SE SE SE S S SE SE SE S S S S S SW SW Wind spd 8 5 8 6 10 11 12 14 16 14 16 16 16 12 11 10 9 6 Wind gust 25 26 Clouds B2 B2 B1 B2 B1 B1 B1 B2 B1 SC B1 B1 B2 B1 B2 B2 B1 B1 PoP 12hr 30 20 40 50 80 QPF 12hr 0.01 0 0.02 0.04 0.13 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S C C D D D D L Tstms C S S C C Heat index 88 Max heat 83 88 Date Wed 09/09/26 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 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 78 53 78 56 81 59 79 Temp 69 63 75 73 59 54 74 73 61 57 78 77 65 59 76 74 Dewpt 68 62 61 60 56 53 57 60 56 55 63 64 60 56 61 62 PWind dir SW NW NW W S S SW N Wind char LT GN LT LT LT GN LT GN Avg clouds B1 B1 SC FW FW FW FW FW CL FW FW FW FW SC SC B1 PoP 12hr 70 5 0 0 5 20 30 30 Rain shwrs L S S S C S C Tstms C S S S S $$ IAZ049-062100- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 127 PM CDT Sun Sep 6 2026 Date Sun 09/06/26 Mon 09/07/26 Tue 09/08/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 63 83 64 90 Temp 80 76 71 69 66 64 71 78 82 79 71 68 66 65 75 85 89 84 Dewpt 69 69 67 66 63 60 62 62 62 61 60 59 57 57 62 68 71 72 RH 69 79 87 90 90 87 73 58 51 54 68 73 73 75 64 57 56 67 Wind dir E E SE SE SE SE SE SE SE SE SE SE S S S S S SW Wind spd 9 6 8 6 8 8 10 11 12 11 12 11 10 9 10 10 9 5 Clouds B1 B1 B2 B1 B1 B1 B1 B1 B1 SC SC SC SC SC B1 B1 B1 B1 PoP 12hr 10 10 20 20 40 QPF 12hr 0 0 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C D Tstms S S C Heat index 95 90 Max heat 83 81 84 89 97 Date Wed 09/09/26 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 67 83 56 80 57 83 61 83 Temp 72 68 80 77 63 57 76 75 62 58 79 79 67 62 79 77 Dewpt 71 68 64 61 58 54 57 59 57 56 62 63 61 59 63 64 PWind dir SW W NW NW S S SW NE Wind char LT LT LT LT LT GN LT LT Avg clouds B1 B2 B1 SC FW FW FW FW CL FW FW FW FW SC SC SC PoP 12hr 90 10 0 0 20 20 40 30 Rain shwrs D D S S C C C Tstms C C S C S $$ IAZ086-062100- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 127 PM CDT Sun Sep 6 2026 Date Sun 09/06/26 Mon 09/07/26 Tue 09/08/26 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 83 66 86 66 95 Temp 83 78 74 72 68 66 74 82 85 82 73 70 68 67 79 91 95 91 Dewpt 69 69 69 67 63 61 63 63 62 62 62 60 59 58 62 67 70 71 RH 63 74 84 84 84 84 69 53 46 51 68 71 73 73 56 45 45 52 Wind dir E E E SE SE SE SE SE SE SE SE SE SE S S S S S Wind spd 11 9 8 6 8 6 10 10 11 10 10 9 9 10 10 10 10 8 Clouds SC SC B2 SC B1 B1 B1 B1 SC FW FW SC SC B1 SC SC SC SC PoP 12hr 10 20 10 5 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C Tstms C Heat index 102 97 Max heat 85 88 83 87 81 95 103 Date Wed 09/09/26 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 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 72 86 62 82 60 86 65 87 Temp 79 72 83 82 67 63 78 78 64 61 82 82 69 65 83 82 Dewpt 69 72 71 68 64 60 59 61 60 59 63 66 64 63 67 67 PWind dir SW W NW N SE S S SE Wind char GN LT LT LT LT GN LT GN Avg clouds B1 B2 B2 SC SC FW SC FW CL FW SC FW FW SC SC SC PoP 12hr 80 50 5 5 20 20 40 30 Rain shwrs C D C S S C C S C Tstms C C S S S S S $$