Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
935 FOUS53 KDMX 300317 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 1017 PM CDT Sat Aug 29 2026 IAZ060-300900- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 1017 PM CDT Sat Aug 29 2026 Date 08/29/26 Sun 08/30/26 Mon 08/31/26 Tue 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 95 78 95 77 Temp 76 75 76 82 88 93 92 84 82 80 78 84 91 94 91 82 80 78 77 Dewpt 66 65 64 66 68 69 68 67 66 65 65 68 70 70 69 69 68 67 66 RH 71 71 66 58 52 46 46 57 58 60 64 59 50 46 49 65 67 69 69 Wind dir S S SW SW S S S S S S SW SW SW SW W SE S SW S Wind spd 10 10 13 13 13 12 10 11 12 12 11 9 8 6 5 4 4 5 5 Wind gust 24 24 Clouds SC SC SC B1 B1 SC SC B1 B1 B1 SC SC SC SC SC SC SC SC SC PoP 12hr 5 30 10 30 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S C Tstms S C S S Heat index 99 97101 96 Max heat 94 103 96 85 99 103 94 82 Date 09/01 Wed 09/02/26 Thu 09/03/26 Fri 09/04/26 Sat 09/05/26 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 96 78 96 74 94 73 93 73 91 Temp 93 91 81 78 94 91 78 74 90 90 77 73 89 89 76 73 88 87 Dewpt 67 66 65 65 67 67 68 68 69 68 68 67 69 68 68 67 68 67 PWind dir SW SW W E SE SE S SE S Wind char LT GN GN LT LT LT LT LT LT Avg clouds SC FW FW SC SC FW FW FW B1 SC SC SC B1 SC SC SC SC SC PoP 12hr 10 5 10 20 20 20 20 20 20 Rain shwrs S S S S S S S Tstms S S S S S S S $$ IAZ039-300900- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 1017 PM CDT Sat Aug 29 2026 Date 08/29/26 Sun 08/30/26 Mon 08/31/26 Tue CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 89 74 90 73 Temp 72 70 71 79 85 89 85 79 78 76 74 80 87 90 85 77 75 74 73 Dewpt 67 65 64 69 71 72 72 69 67 66 66 70 73 74 74 71 70 69 68 RH 84 84 79 72 63 57 65 72 69 71 76 72 63 60 70 82 84 84 84 Wind dir S S S S S S S S S S S SW SW S S SE S SW S Wind spd 11 9 12 12 14 12 10 11 11 11 10 10 8 5 4 3 3 3 3 Clouds B1 B1 SC B1 B1 B1 SC SC SC SC SC SC SC SC SC B1 SC B1 B1 PoP 12hr 5 30 20 20 30 QPF 12hr 0 0.01 0.05 0 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S S S S S C C Tstms C C S S S S S C C Heat index 90 96 91 94 99 93 Max heat 91 97 90 95 100 91 Date 09/01 Wed 09/02/26 Thu 09/03/26 Fri 09/04/26 Sat 09/05/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 73 90 70 87 69 87 69 87 Temp 87 85 76 73 87 85 73 70 84 83 72 69 85 83 72 69 85 82 Dewpt 72 73 67 66 71 71 68 67 71 71 68 66 71 71 68 66 69 69 PWind dir S S W NE SE SE SE SE SE Wind char LT LT GN LT LT LT LT LT GN Avg clouds SC SC SC SC SC FW FW SC B1 SC SC SC SC SC SC SC SC SC PoP 12hr 10 20 10 30 30 30 20 20 10 Rain shwrs S C C C S S Tstms S C C C S S $$ IAZ048-300900- Ames-Story IA 41.99N 93.62W Elev. 936 ft 1017 PM CDT Sat Aug 29 2026 Date 08/29/26 Sun 08/30/26 Mon 08/31/26 Tue 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 94 75 93 74 Temp 74 73 74 81 88 92 90 82 80 77 75 82 89 92 89 79 76 74 74 Dewpt 67 66 64 68 70 71 71 69 67 66 66 69 71 72 72 71 70 68 67 RH 79 79 71 65 55 51 54 65 65 69 74 65 56 52 57 77 82 82 79 Wind dir S S SW SW S S S S S S S SW SW SW SW NE SE SW S Wind spd 9 8 11 11 13 11 8 10 10 10 8 8 6 4 2 2 3 3 3 Wind gust 26 21 Clouds B1 B1 B2 B1 B2 SC SC SC SC B1 SC SC SC SC SC SC B1 B1 B1 PoP 12hr 5 30 20 30 20 QPF 12hr 0 0 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S C C S S S Tstms S S S S S S S Heat index 93 99 96 95100 96 Max heat 94 101 94 82 96 102 92 Date 09/01 Wed 09/02/26 Thu 09/03/26 Fri 09/04/26 Sat 09/05/26 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 94 74 93 71 92 71 91 71 90 Temp 91 89 78 75 90 89 75 72 88 87 74 71 88 87 74 71 87 85 Dewpt 70 70 67 65 69 70 69 68 70 70 69 68 70 70 69 67 69 68 PWind dir SW S W E SE SE S SE SE Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 SC SC SC SC SC FW SC B1 SC B1 B1 B1 SC SC SC SC SC PoP 12hr 10 20 10 30 30 20 20 20 20 Rain shwrs S C C S S S S S Tstms S C C S S S S S $$ IAZ004-300900- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 1017 PM CDT Sat Aug 29 2026 Date 08/29/26 Sun 08/30/26 Mon 08/31/26 Tue CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 90 72 86 69 Temp 71 71 72 79 87 89 87 78 76 74 72 79 83 86 85 75 71 70 69 Dewpt 68 68 64 67 69 70 70 68 67 65 66 68 68 66 69 68 66 65 65 RH 90 90 76 67 55 54 57 71 74 74 81 69 61 51 59 79 84 84 87 Wind dir S S S S S S S S S SW W N N N NE NE N W W Wind spd 5 5 6 8 10 12 11 10 8 5 5 8 8 5 4 3 3 3 3 Wind gust 21 Clouds SC B1 B1 SC SC SC FW FW SC FW SC SC B1 SC SC SC SC B1 B2 PoP 12hr 5 10 10 5 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S Tstms S S S Heat index 95 92 Max heat 91 97 90 87 89 84 Date 09/01 Wed 09/02/26 Thu 09/03/26 Fri 09/04/26 Sat 09/05/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 86 67 85 67 85 67 86 68 85 Temp 83 82 71 67 82 82 69 67 83 82 70 67 83 83 71 68 82 81 Dewpt 68 70 65 64 68 69 66 64 68 69 66 64 68 69 66 64 67 67 PWind dir SE NE N E SE SE SE SE S Wind char LT LT LT LT GN LT GN GN GN Avg clouds B1 B1 B1 SC SC FW SC SC B1 SC SC SC SC SC SC SC B1 SC PoP 12hr 20 40 20 30 20 20 10 20 20 Rain shwrs S S C S C S S S S Tstms S S C S C S S S S $$ IAZ035-300900- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 1017 PM CDT Sat Aug 29 2026 Date 08/29/26 Sun 08/30/26 Mon 08/31/26 Tue 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 74 92 72 Temp 74 73 74 81 88 91 88 80 78 76 74 81 88 90 87 77 74 73 72 Dewpt 68 67 63 68 70 71 71 69 67 66 66 70 72 72 72 70 69 68 67 RH 82 81 69 65 55 52 57 69 69 71 76 69 59 56 61 79 84 84 84 Wind dir S S SW S S S S S S S SW SW S S SW S SE E SE Wind spd 9 9 9 10 12 11 6 8 8 6 4 4 3 3 2 2 1 1 2 Wind gust 28 Clouds B1 B1 B2 SC SC B1 SC SC SC SC B1 SC SC SC SC SC B1 B2 B2 PoP 12hr 5 20 20 20 30 QPF 12hr 0 0 0 0 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S C C S Tstms S S S S C C S Heat index 93 97 94 94 98 94 Max heat 93 100 93 96 99 90 Date 09/01 Wed 09/02/26 Thu 09/03/26 Fri 09/04/26 Sat 09/05/26 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 90 69 90 69 90 68 89 Temp 88 87 75 71 87 86 72 69 86 85 72 69 86 86 72 69 86 83 Dewpt 70 71 66 65 70 70 67 66 70 71 67 66 70 70 67 65 69 68 PWind dir S S NW E SE SE SE SE S Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 SC SC SC SC FW FW SC B2 B1 SC SC B1 SC SC SC B1 SC PoP 12hr 20 30 10 30 20 30 10 20 20 Rain shwrs S S C C S S C S S Tstms S S S C S S C S S $$ IAZ094-300900- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 1017 PM CDT Sat Aug 29 2026 Date 08/29/26 Sun 08/30/26 Mon 08/31/26 Tue CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 73 95 78 97 78 Temp 76 74 74 80 89 94 92 84 82 80 78 85 94 97 93 84 82 80 78 Dewpt 66 64 62 65 66 66 65 65 63 62 62 64 66 65 64 64 63 62 62 RH 71 71 66 60 47 40 41 53 53 54 58 50 40 35 38 51 53 54 58 Wind dir S S S S S S S S S S S SW SW SW SW S S SW S Wind spd 11 10 13 14 16 16 12 11 11 11 11 13 12 10 8 6 8 8 8 Wind gust 26 26 23 21 21 21 21 24 Clouds SC SC B1 SC SC SC SC SC B1 SC SC SC FW FW FW SC SC SC SC PoP 12hr 10 20 5 10 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Tstms S Date 09/01 Wed 09/02/26 Thu 09/03/26 Fri 09/04/26 Sat 09/05/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 97 78 98 75 95 74 92 73 90 Temp 96 92 81 79 95 93 80 76 92 90 78 74 90 89 77 73 88 86 Dewpt 64 62 63 63 65 63 66 66 67 65 68 66 67 66 67 66 66 65 PWind dir SW S SW SE S SE S S S Wind char GN GN GN LT GN LT LT LT LT Avg clouds SC FW FW FW SC FW FW SC SC SC SC SC B1 SC SC SC SC SC PoP 12hr 0 5 0 10 20 20 20 10 10 Rain shwrs S S S S Tstms S S S S $$ IAZ017-300900- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 1017 PM CDT Sat Aug 29 2026 Date 08/29/26 Sun 08/30/26 Mon 08/31/26 Tue 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 90 73 89 71 Temp 70 69 71 79 85 88 86 78 77 75 73 81 86 89 85 75 73 72 71 Dewpt 68 66 64 69 70 70 71 69 67 66 66 70 72 70 72 70 68 68 68 RH 93 90 79 72 61 55 61 74 71 74 79 69 63 54 65 84 84 87 90 Wind dir S S S SW S S S S S S SW SW NW SW W SW SE S SW Wind spd 8 8 9 10 12 12 9 9 8 8 6 6 5 4 3 2 2 2 2 Clouds B1 B1 B1 B1 SC SC SC SC SC B1 SC SC SC FW B1 SC B1 B1 B2 PoP 12hr 0 20 20 5 30 QPF 12hr 0 0 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C S Tstms S S S S C S S Heat index 90 94 91 93 94 91 Max heat 90 95 88 93 95 86 Date 09/01 Wed 09/02/26 Thu 09/03/26 Fri 09/04/26 Sat 09/05/26 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 88 67 86 66 87 67 86 Temp 85 83 73 70 85 83 70 68 83 83 70 67 84 83 71 68 84 82 Dewpt 70 71 67 65 69 69 66 65 69 70 67 65 69 69 66 65 67 67 PWind dir SW SE NW E SE SE SE SE SE Wind char LT LT LT LT LT LT LT LT LT Avg clouds B2 B1 SC B1 SC SC FW SC B1 SC SC SC SC SC SC SC SC SC PoP 12hr 20 40 20 30 20 30 10 20 20 Rain shwrs S S C S C S C S S Tstms S S C C S C S S $$ IAZ049-300900- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 1017 PM CDT Sat Aug 29 2026 Date 08/29/26 Sun 08/30/26 Mon 08/31/26 Tue CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 71 92 75 93 73 Temp 72 72 73 80 86 91 88 81 79 77 75 81 88 92 88 78 76 74 73 Dewpt 67 66 63 68 69 70 69 67 66 64 64 69 70 72 72 70 68 67 67 RH 84 81 71 67 57 50 54 63 64 64 69 67 55 52 59 76 76 79 81 Wind dir S S S S S S S S S S S SW SW SW W SE S SW S Wind spd 11 11 11 12 13 12 10 11 10 11 9 9 6 4 2 2 3 3 3 Wind gust 24 24 23 Clouds SC SC SC SC B1 SC SC SC SC B1 SC SC B1 SC SC SC SC B1 B1 PoP 12hr 5 30 20 30 20 QPF 12hr 0 0 0.03 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C C S S Tstms C C S S S S Heat index 97 94 99 95 Max heat 92 99 90 95 101 90 Date 09/01 Wed 09/02/26 Thu 09/03/26 Fri 09/04/26 Sat 09/05/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 93 73 92 70 91 69 90 69 89 Temp 89 87 77 74 89 86 73 70 86 85 72 69 86 85 73 70 86 84 Dewpt 70 70 66 64 69 70 67 66 70 69 68 66 69 69 67 65 68 67 PWind dir S S W NE SE SE SE SE SE Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 SC FW SC SC SC FW SC B1 SC SC SC B1 SC SC SC SC SC PoP 12hr 10 10 10 30 30 20 20 20 20 Rain shwrs S C C S S S S S Tstms S C C S S S S S $$ IAZ086-300900- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 1017 PM CDT Sat Aug 29 2026 Date 08/29/26 Sun 08/30/26 Mon 08/31/26 Tue 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 93 77 96 78 Temp 74 73 74 79 86 91 89 83 80 79 77 82 92 96 91 82 81 79 78 Dewpt 64 63 64 69 71 71 70 67 66 64 65 69 70 71 69 68 67 65 65 RH 71 71 71 72 61 52 54 59 62 60 67 65 49 45 49 63 63 62 64 Wind dir S S S S SW S S S S S S SW SW SW S S S SW SW Wind spd 13 11 13 13 13 13 10 11 10 11 11 12 11 9 8 8 8 8 5 Wind gust 24 20 21 20 21 21 23 Clouds SC SC B1 SC SC SC FW SC B1 SC SC FW SC FW SC SC SC SC SC PoP 12hr 20 30 10 20 5 QPF 12hr 0.01 0.01 0 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S S Tstms S S S S Heat index 91 98 95 98102 96 Max heat 93 100 92 82 98 103 93 83 Date 09/01 Wed 09/02/26 Thu 09/03/26 Fri 09/04/26 Sat 09/05/26 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 96 78 98 75 94 74 92 72 90 Temp 94 91 80 79 95 92 78 75 90 89 76 74 89 88 76 73 88 86 Dewpt 68 67 65 66 69 68 69 69 71 70 70 69 70 69 69 68 69 68 PWind dir SW S SW S SE SE S SE S Wind char GN GN GN LT LT LT LT LT LT Avg clouds SC FW FW FW SC FW FW FW B1 SC SC SC SC SC SC SC B1 SC PoP 12hr 5 5 5 20 20 30 20 10 20 Rain shwrs S S C S S Tstms S S C S S $$