Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
236 FOUS53 KDMX 061057 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 557 AM CDT Sun Sep 6 2026 IAZ060-062100- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 557 AM 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 87 71 96 Temp 73 76 82 85 82 76 73 70 68 74 82 87 84 77 75 73 72 81 92 96 91 Dewpt 70 71 72 72 71 70 68 66 63 64 67 67 65 62 59 58 58 64 69 70 70 RH 90 85 72 65 69 82 84 87 84 71 61 52 53 60 58 59 61 56 47 43 50 Wind dir E E E E E E E SE SE SE SE SE SE SE SE S S S SW SW S Wind spd 8 8 9 9 8 8 8 8 9 10 11 12 11 13 12 11 11 10 11 12 9 Clouds B1 B1 B2 B2 B2 B1 B1 B1 B1 B2 B1 SC FW SC SC SC B1 SC SC SC SC PoP 12hr 20 20 10 0 10 QPF 12hr 0.34 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S S L Tstms S S S C Heat index 87 91 98103 97 Max heat 88 92 85 86 92 85 99 104 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 85 64 83 63 85 65 86 Temp 77 72 82 80 68 64 80 79 67 64 82 81 70 66 83 81 Dewpt 71 69 64 63 62 60 60 61 59 59 62 63 61 60 63 64 PWind dir W NW NW NW S S S SW Wind char LT LT LT LT LT LT LT GN Avg clouds B1 B2 SC SC SC SC SC FW FW FW FW FW FW FW SC SC PoP 12hr 80 20 10 5 20 10 20 30 Rain shwrs L D S S S S C Tstms C C S S S $$ IAZ039-062100- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 557 AM CDT Sun Sep 6 2026 Date Sun 09/06/26 Mon 09/07/26 Tue 09/08/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 63 81 65 89 Temp 66 73 78 80 78 71 69 65 63 70 77 80 77 71 69 67 66 75 83 88 84 Dewpt 65 68 69 69 69 68 65 61 59 63 64 64 63 62 61 59 58 63 68 71 72 RH 97 84 74 69 74 90 87 87 87 78 64 58 62 73 76 75 75 66 61 57 67 Wind dir E SE SE SE E SE SE SE SE SE SE SE SE SE SE S S S S S S Wind spd 5 9 9 10 8 8 9 8 9 11 13 14 13 14 14 13 12 12 12 12 9 Clouds B1 B1 B1 B1 B1 B1 SC B1 SC SC B1 SC FW SC SC SC B1 B1 B1 SC B1 PoP 12hr 5 5 5 5 40 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S D Tstms S S C Obvis PF Heat index 95 89 Max heat 84 83 88 96 Date Wed 09/09/26 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 68 81 58 79 58 81 61 81 Temp 73 68 78 76 64 59 77 75 62 59 78 76 66 62 78 76 Dewpt 71 66 62 61 59 55 58 60 57 56 61 62 59 57 62 62 PWind dir SW NW NW W S S S SW Wind char LT GN LT LT LT GN LT GN Avg clouds B1 B1 SC FW FW SC FW FW FW FW FW FW FW FW SC SC PoP 12hr 90 5 5 0 5 5 20 20 Rain shwrs D D S S S Tstms C C S S $$ IAZ048-062100- Ames-Story IA 41.99N 93.62W Elev. 936 ft 557 AM 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 84 66 85 68 93 Temp 71 75 81 83 80 73 71 68 66 72 80 83 82 75 72 70 69 78 88 92 87 Dewpt 69 71 72 73 71 70 68 66 63 64 67 69 66 62 61 59 59 65 71 73 73 RH 93 87 74 72 74 90 90 93 90 76 65 63 58 64 68 68 70 64 57 54 63 Wind dir E SE SE SE E SE SE SE SE SE SE SE SE SE SE S S S S SW SW Wind spd 6 8 9 9 8 6 8 9 9 11 12 12 12 13 12 11 10 10 11 11 6 Clouds B1 B2 B2 B2 B2 B2 B1 B1 B2 B2 B1 SC SC SC B1 B1 B1 B1 SC SC B1 PoP 12hr 30 20 10 0 30 QPF 12hr 0.43 0.03 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C S S C C D Tstms S S C C Heat index 88 94101 95 Max heat 86 89 83 89 82 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 68 83 61 82 61 84 63 84 Temp 74 68 80 79 66 61 79 78 65 62 80 79 68 64 81 79 Dewpt 72 67 63 64 61 58 60 62 59 58 63 64 61 60 63 64 PWind dir W NW NW W S S S SW Wind char LT LT LT LT LT LT LT GN Avg clouds B1 B1 SC SC SC SC FW FW FW FW FW FW FW SC SC SC PoP 12hr 90 10 5 5 5 10 20 30 Rain shwrs D L S S C Tstms C C S S $$ IAZ004-062100- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 557 AM CDT Sun Sep 6 2026 Date Sun 09/06/26 Mon 09/07/26 Tue 09/08/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 65 83 69 86 Temp 70 74 79 81 78 70 69 68 66 72 78 82 80 74 72 71 70 76 83 85 81 Dewpt 69 71 73 72 71 70 68 65 64 66 68 70 69 64 61 60 61 67 71 72 71 RH 97 90 82 74 79100 97 90 93 81 71 67 69 71 68 68 73 74 67 65 72 Wind dir SE SE SE SE SE SE SE SE S S SE SE SE S S S S S SW SW SW Wind spd 8 10 11 11 10 10 10 11 13 17 19 19 18 21 21 19 17 14 14 11 8 Wind gust 21 31 32 31 32 29 27 25 Clouds B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 SC SC SC B1 B2 B2 B1 B1 SC PoP 12hr 50 30 20 40 50 QPF 12hr 0.67 0.03 0 0.02 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C S S C C C C C C Tstms C S S C S S S C C S S C Heat index 88 91 Max heat 86 88 88 91 Date Wed 09/09/26 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 62 79 55 80 58 82 60 79 Temp 68 62 76 75 60 56 77 77 62 59 79 78 65 61 76 74 Dewpt 62 54 59 61 56 53 58 60 56 55 62 63 58 56 61 61 PWind dir W NW W W S S SW NW Wind char LT GN LT LT LT GN GN GN Avg clouds SC FW FW FW FW FW FW FW FW FW SC FW FW FW FW SC PoP 12hr 10 0 0 0 10 10 20 20 Rain shwrs S S Tstms S S $$ IAZ035-062100- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 557 AM 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 84 65 85 68 91 Temp 70 74 80 82 79 71 70 67 65 72 78 83 81 74 73 70 69 77 85 90 84 Dewpt 69 72 73 73 72 71 68 66 64 66 69 71 68 64 60 58 59 66 72 73 74 RH 97 93 79 74 79100 93 97 97 81 74 67 65 71 64 66 70 69 65 58 72 Wind dir SE SE SE SE SE SE SE SE SE SE SE SE SE SE S S S S S SW W Wind spd 6 8 9 8 8 8 8 9 10 12 13 14 13 16 16 13 12 10 12 10 4 Clouds B2 B2 B2 B2 B2 B1 B1 B1 B2 B2 B1 SC SC SC B1 B1 B2 B1 B1 SC B1 PoP 12hr 50 30 20 10 60 QPF 12hr 0.80 0.03 0 0 0.12 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C C S S S S L L D Tstms S S S S S S C C Heat index 88 88 91 98 92 Max heat 84 90 89 92 99 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 65 82 57 82 59 84 61 83 Temp 71 65 78 78 63 58 78 78 63 60 79 79 66 62 78 77 Dewpt 69 62 61 63 59 55 59 62 58 57 63 64 60 58 63 64 PWind dir W NW NW W S S S W Wind char LT LT LT LT LT LT LT GN Avg clouds B1 B1 SC FW FW SC SC FW FW FW SC FW FW SC SC SC PoP 12hr 80 0 5 0 5 10 10 30 Rain shwrs D S S C Tstms C S S S $$ IAZ094-062100- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 557 AM CDT Sun Sep 6 2026 Date Sun 09/06/26 Mon 09/07/26 Tue 09/08/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 67 89 70 95 Temp 73 79 86 88 83 76 73 69 67 75 85 89 86 78 75 72 71 82 92 95 92 Dewpt 72 72 73 72 71 70 67 65 62 64 66 65 63 59 58 57 58 63 68 67 67 RH 97 79 65 59 67 82 81 87 84 69 53 45 46 52 55 59 63 53 46 40 44 Wind dir E SE E E E E E SE SE SE SE SE SE SE SE S S S SW S S Wind spd 6 6 6 8 6 8 8 8 9 10 11 12 11 11 11 11 11 11 13 13 10 Clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC FW FW SC SC SC SC SC FW FW SC PoP 12hr 30 30 10 0 0 QPF 12hr 0.18 0.08 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C S Tstms S S S Obvis PF Heat index 93 95 Max heat 94 96 83 88 93 85 97 101 Date Wed 09/09/26 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 73 86 62 83 62 85 65 87 Temp 80 73 83 80 68 62 79 79 67 63 82 81 69 66 84 81 Dewpt 67 68 65 63 63 61 61 61 60 59 62 62 62 61 64 64 PWind dir SW NW N N SE S S S Wind char LT LT LT LT LT LT LT GN Avg clouds SC B2 B1 SC SC B1 SC FW FW FW FW FW FW SC SC FW PoP 12hr 60 30 30 10 20 10 20 20 Rain shwrs L C S C C S S S Tstms C C S C S S $$ IAZ017-062100- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 557 AM 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 62 80 65 86 Temp 66 72 76 80 77 70 68 65 63 69 75 79 77 70 69 67 66 73 81 85 80 Dewpt 66 69 70 70 70 68 66 63 61 64 66 67 65 62 60 58 58 65 69 72 73 RH 100 90 82 72 79 93 93 93 93 84 74 67 67 76 73 73 75 76 67 65 79 Wind dir SE SE SE SE SE SE SE SE SE SE SE SE SE SE S S S S S S SW Wind spd 6 9 9 9 8 8 8 9 10 13 14 17 14 17 16 16 14 12 12 10 6 Wind gust 25 27 25 26 23 Clouds B2 B2 B2 B2 B2 SC B1 B1 SC B1 B2 SC SC SC B1 B1 B2 B1 B1 B1 B1 PoP 12hr 20 10 5 20 70 QPF 12hr 0.09 0 0 0 0.09 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C L L L Tstms S S C C Obvis PF Heat index 91 Max heat 83 82 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 64 79 55 79 57 80 59 79 Temp 70 64 76 74 61 56 76 74 61 58 77 76 64 61 76 73 Dewpt 68 60 61 61 57 54 58 60 57 55 62 62 59 56 62 61 PWind dir W NW NW W S S S W Wind char LT GN LT LT LT GN LT GN Avg clouds B1 SC FW FW FW SC FW FW FW FW SC FW FW SC FW SC PoP 12hr 70 0 0 0 5 10 20 30 Rain shwrs L S S C Tstms C S S S $$ IAZ049-062100- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 557 AM CDT Sun Sep 6 2026 Date Sun 09/06/26 Mon 09/07/26 Tue 09/08/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 63 84 66 93 Temp 68 74 79 82 79 72 69 65 63 71 79 82 79 72 70 68 67 76 87 91 86 Dewpt 66 70 69 69 69 68 66 62 60 63 64 64 62 61 60 58 57 63 68 70 71 RH 93 87 72 65 72 87 90 90 90 76 60 55 56 68 71 70 70 64 53 50 61 Wind dir E SE E SE E SE SE SE SE SE SE SE SE SE SE S S S S S S Wind spd 5 8 6 8 8 8 8 8 8 10 11 12 11 12 11 11 10 10 11 11 8 Clouds B1 B1 B2 B1 B1 B1 B1 B1 B1 B2 B1 SC FW SC SC SC B1 B1 SC SC SC PoP 12hr 10 10 5 5 30 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S D Tstms S C Heat index 97 92 Max heat 83 87 82 86 92 99 Date Wed 09/09/26 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 68 83 59 81 58 83 61 84 Temp 73 68 80 77 64 59 78 76 63 59 79 78 66 63 80 78 Dewpt 70 67 62 62 59 56 58 60 58 56 61 61 59 58 62 62 PWind dir SW NW NW NW S S S SW Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 SC SC FW SC FW FW FW FW FW FW FW SC SC SC PoP 12hr 90 10 5 5 5 10 20 30 Rain shwrs D D S S C Tstms C C S S $$ IAZ086-062100- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 557 AM 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 86 66 87 68 95 Temp 70 77 82 85 83 74 72 67 66 74 82 86 83 74 72 70 69 80 92 95 92 Dewpt 69 72 71 70 70 69 66 63 61 64 64 63 62 62 61 59 59 63 68 69 69 RH 97 85 69 61 65 84 81 87 84 71 55 46 49 66 68 68 70 56 46 43 47 Wind dir E E E E E E E SE SE SE SE SE SE SE SE S S S S S S Wind spd 6 8 8 9 9 9 8 8 8 9 10 11 10 10 9 9 10 11 11 11 9 Wind gust 19 Clouds B1 SC B1 SC SC B1 SC SC SC B1 B1 SC CL SC SC SC B1 SC SC FW FW PoP 12hr 5 5 5 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis PF Heat index 90 101 97 Max heat 88 91 83 84 88 82 96 102 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 74 87 64 83 62 85 64 87 Temp 80 74 84 82 68 64 79 79 66 63 82 81 69 66 84 82 Dewpt 68 71 67 65 64 61 60 62 60 60 62 64 62 62 65 65 PWind dir S NW NW NW SE S S SW Wind char GN LT LT LT LT LT LT GN Avg clouds SC B1 B1 SC FW SC SC FW CL FW SC FW FW FW SC FW PoP 12hr 60 30 10 5 10 20 20 20 Rain shwrs L C S S S S Tstms C S S S $$