Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
327 FOUS53 KDMX 300627 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 127 AM CDT Sun Aug 30 2026 IAZ060-310900- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 127 AM CDT Sun Aug 30 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 92 78 94 76 Temp 77 77 79 85 91 90 83 82 80 78 83 90 92 89 82 79 78 76 Dewpt 65 64 66 68 69 68 67 66 65 65 68 70 70 71 70 70 68 67 RH 67 64 64 57 49 49 59 58 60 64 61 52 49 56 67 74 71 74 Wind dir S SW SW S S S S S S SW SW SW SW S E SE SW SW Wind spd 11 13 13 13 12 10 11 12 12 11 9 8 6 4 3 3 4 4 Wind gust 24 24 Clouds SC SC B1 B1 SC SC B1 B1 B1 SC SC SC SC SC SC SC SC B1 PoP 12hr 10 40 20 20 20 QPF 12hr 0 0.02 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S S S S S S Tstms S C S S S S S S Heat index 96 95 99 94 Max heat 90 97 91 85 96 100 95 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 95 78 96 75 95 74 94 72 91 Temp 93 92 82 78 93 91 79 75 91 91 78 75 91 90 77 73 89 87 Dewpt 68 68 65 65 68 68 68 68 70 68 68 68 69 68 68 67 68 67 PWind dir SW S SW S S S S SE SE Wind char LT GN GN LT LT LT LT LT LT Avg clouds SC FW FW SC SC FW FW SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 10 5 5 10 10 10 20 10 10 Rain shwrs S Tstms S $$ IAZ039-310900- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 127 AM CDT Sun Aug 30 2026 Date 08/29/26 Sun 08/30/26 Mon 08/31/26 Tue CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 86 74 90 71 Temp 71 72 78 83 85 84 79 78 76 74 80 86 88 85 77 75 73 71 Dewpt 64 64 69 71 72 72 69 67 66 66 70 73 74 75 72 70 68 67 RH 79 76 74 67 65 67 72 69 71 76 72 65 63 72 85 84 84 87 Wind dir S S S S S S S S S S SW SW S SW SE S SW S Wind spd 10 12 12 14 12 10 11 11 11 10 10 8 5 3 3 2 3 3 Clouds SC SC B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC B1 B1 PoP 12hr 5 30 20 20 40 QPF 12hr 0 0.03 0.05 0 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S S S S C C S Tstms C S S S S S C C S Heat index 88 92 90 93 97 93 Max heat 90 94 86 94 98 90 Date 09/01 Wed 09/02/26 Thu 09/03/26 Fri 09/04/26 Sat 09/05/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 73 91 71 89 71 88 69 86 Temp 86 86 77 73 87 85 75 72 86 84 74 71 86 83 73 69 84 82 Dewpt 73 73 68 66 72 73 69 67 73 73 70 68 73 72 68 66 69 69 PWind dir S SE SW E E SE S SE SE Wind char LT LT GN LT LT LT LT LT LT Avg clouds B1 SC SC SC SC FW FW SC B1 SC FW SC SC SC FW FW SC SC PoP 12hr 20 20 10 30 20 20 20 10 10 Rain shwrs S S C S S S S S Tstms S S C S S S S $$ IAZ048-310900- Ames-Story IA 41.99N 93.62W Elev. 936 ft 127 AM CDT Sun Aug 30 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 90 75 92 73 Temp 73 74 79 83 88 88 81 80 77 75 81 87 90 86 79 77 75 73 Dewpt 65 65 68 70 71 71 69 67 66 66 69 71 72 73 72 71 69 68 RH 76 74 69 65 57 57 67 65 69 74 67 59 56 65 79 82 82 84 Wind dir S SW SW S S S S S S S SW SW SW S E SE S SW Wind spd 8 11 11 13 11 8 10 10 10 8 8 6 4 2 2 2 2 3 Wind gust 26 21 Clouds B1 B2 B1 B2 SC SC SC SC B1 SC SC SC SC SC SC SC B1 B1 PoP 12hr 20 30 20 20 30 QPF 12hr 0 0.02 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S S S S C C Tstms S C S S S S C C Heat index 94 93 93 97 93 Max heat 87 96 90 82 94 98 93 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 75 93 72 93 72 93 70 90 Temp 90 90 79 75 90 89 77 73 89 89 76 73 89 88 75 70 87 85 Dewpt 70 71 67 65 70 71 69 68 72 71 70 68 71 71 69 67 69 68 PWind dir S SE SW E SE SE S SE E Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 SC SC SC SC SC SC SC B1 SC SC SC SC SC SC SC SC SC PoP 12hr 10 10 10 20 20 10 10 10 10 Rain shwrs S S Tstms S S $$ IAZ004-310900- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 127 AM CDT Sun Aug 30 2026 Date 08/29/26 Sun 08/30/26 Mon 08/31/26 Tue CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 90 72 88 67 Temp 70 72 79 87 90 87 79 76 74 72 77 82 86 83 73 70 68 67 Dewpt 66 65 67 69 70 70 68 67 65 66 68 68 66 66 65 64 63 64 RH 87 79 67 55 52 57 69 74 74 81 74 63 51 57 76 81 84 90 Wind dir S S S S S S S S SW W N N N NE NE NE NE W Wind spd 5 6 8 10 12 11 10 8 5 5 8 8 5 4 3 3 3 3 Wind gust 21 Clouds B1 B1 SC SC SC FW FW SC FW SC SC B1 SC B2 SC SC B1 B2 PoP 12hr 5 10 5 10 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S Tstms S S S Heat index 96 92 Max heat 92 96 88 86 88 83 Date 09/01 Wed 09/02/26 Thu 09/03/26 Fri 09/04/26 Sat 09/05/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 86 68 87 67 87 68 87 67 85 Temp 83 82 71 68 83 83 71 68 84 84 72 69 84 83 71 68 83 82 Dewpt 68 70 66 64 68 70 66 65 69 70 67 65 69 70 66 64 67 67 PWind dir S E NE SE SE S SE SE SE Wind char LT LT LT LT GN LT LT LT GN Avg clouds B2 B1 SC B1 SC FW FW SC B1 SC FW FW SC SC SC SC SC SC PoP 12hr 20 60 10 40 20 20 10 20 20 Rain shwrs S C L C S S S S S Tstms S C C C S S S S S $$ IAZ035-310900- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 127 AM CDT Sun Aug 30 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 90 74 90 70 Temp 73 74 81 86 89 87 80 78 76 74 80 86 88 86 77 73 72 70 Dewpt 67 64 68 70 71 71 69 67 66 66 70 72 71 72 70 68 68 67 RH 81 71 65 59 56 59 69 69 71 76 72 63 57 63 79 84 87 90 Wind dir S SW S S S S S S S SW SW S S S SE E SE NW Wind spd 8 9 10 12 11 6 8 8 6 4 4 3 3 2 2 1 2 1 Wind gust 28 Clouds B1 B2 SC SC B1 SC SC SC SC B1 SC SC SC SC SC SC B2 B2 PoP 12hr 10 20 10 20 40 QPF 12hr 0 0.01 0 0 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S C C S Tstms S S S S S C C S Heat index 91 95 93 92 94 91 Max heat 91 96 90 92 95 89 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 72 91 69 91 70 91 68 89 Temp 86 87 76 72 87 86 73 70 87 87 74 71 88 86 72 69 86 84 Dewpt 71 72 67 64 70 71 68 67 71 72 68 67 71 70 68 66 69 68 PWind dir SE SE SW E SE SE S SE SE Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 SC SC B1 SC SC SC SC B2 SC SC SC B1 SC SC SC SC SC PoP 12hr 20 20 10 30 20 20 10 10 10 Rain shwrs S S C S S Tstms S S C S S $$ IAZ094-310900- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 127 AM CDT Sun Aug 30 2026 Date 08/29/26 Sun 08/30/26 Mon 08/31/26 Tue CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 74 94 78 96 77 Temp 75 75 80 88 92 92 84 82 80 78 84 91 95 92 84 81 79 77 Dewpt 63 62 65 66 66 65 65 63 62 62 64 66 65 65 66 65 63 62 RH 66 64 60 48 43 41 53 53 54 58 51 44 37 41 55 58 58 60 Wind dir S S S S S S S S S S SW SW SW SW S S SW S Wind spd 12 13 14 16 16 12 11 11 11 11 13 12 10 6 5 6 6 6 Wind gust 26 26 23 21 21 21 21 24 Clouds SC B1 SC SC SC SC SC B1 SC SC SC FW FW SC SC SC SC SC PoP 12hr 10 20 5 5 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Date 09/01 Wed 09/02/26 Thu 09/03/26 Fri 09/04/26 Sat 09/05/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 95 78 96 76 95 75 95 73 91 Temp 94 93 82 78 94 92 80 76 92 91 79 76 92 90 77 73 89 87 Dewpt 64 62 63 63 66 63 67 66 68 65 67 66 67 65 68 66 66 65 PWind dir SW S SW S S S S S S Wind char GN GN GN LT GN LT LT LT LT Avg clouds FW FW FW FW FW FW FW SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 0 0 5 5 10 5 10 5 10 $$ IAZ017-310900- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 127 AM CDT Sun Aug 30 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 73 88 68 Temp 70 72 78 86 88 85 78 77 75 73 79 85 86 83 75 72 70 69 Dewpt 66 65 69 71 71 71 69 67 66 66 70 72 70 71 69 67 66 66 RH 87 79 74 61 57 63 74 71 74 79 74 65 59 67 82 84 87 90 Wind dir S S SW S S S S S S SW SW NW SW S SE E SE NW Wind spd 9 9 10 12 12 9 9 8 8 6 6 5 4 3 2 2 2 2 Clouds B1 B1 B1 SC SC SC SC SC B1 SC SC SC FW B2 B1 SC B1 B2 PoP 12hr 5 20 20 10 30 QPF 12hr 0 0 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C C S Tstms S S S C C S Heat index 91 94 90 91 91 88 Max heat 91 95 86 91 92 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 88 70 88 68 88 68 87 67 85 Temp 85 84 73 70 85 85 72 70 85 84 72 70 84 83 71 68 83 81 Dewpt 70 71 67 65 69 70 67 66 70 72 68 67 71 70 68 65 68 68 PWind dir S E S E SE SE S SE SE Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 B1 SC B1 SC FW FW SC B1 SC FW SC SC SC SC SC SC SC PoP 12hr 20 40 10 40 30 20 20 20 10 Rain shwrs S C C C S S S S Tstms S C C C S S S S $$ IAZ049-310900- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 127 AM CDT Sun Aug 30 2026 Date 08/29/26 Sun 08/30/26 Mon 08/31/26 Tue CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 72 89 75 92 72 Temp 73 73 78 83 87 86 80 79 77 75 81 87 90 86 78 75 74 72 Dewpt 64 63 68 69 70 69 67 66 64 64 69 70 72 72 71 69 68 67 RH 73 71 71 63 57 57 65 64 64 69 67 57 56 63 79 82 82 84 Wind dir S S S S S S S S S S SW SW SW SW SE S S SW Wind spd 11 11 12 13 12 10 11 10 11 9 9 6 4 2 2 2 3 3 Wind gust 24 24 23 Clouds SC SC SC B1 SC SC SC SC B1 SC SC B1 SC B1 SC SC SC B1 PoP 12hr 10 40 20 20 30 QPF 12hr 0 0.03 0.02 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S S S S C C Tstms C S S S S S C C Heat index 93 93 97 93 Max heat 88 94 87 93 98 90 Date 09/01 Wed 09/02/26 Thu 09/03/26 Fri 09/04/26 Sat 09/05/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 92 74 93 70 92 71 91 69 89 Temp 88 87 78 74 89 86 74 71 87 86 75 72 88 85 73 69 86 83 Dewpt 70 71 66 64 70 71 68 67 71 71 69 67 71 70 68 66 68 67 PWind dir S SE SW E SE SE S SE E Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 SC SC SC SC FW FW SC B1 SC FW SC B1 SC FW SC SC SC PoP 12hr 10 10 5 20 20 20 20 10 20 Rain shwrs S S S S S Tstms S S S S $$ IAZ086-310900- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 127 AM CDT Sun Aug 30 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 92 77 96 77 Temp 74 75 79 85 91 89 82 80 79 77 83 91 94 90 83 80 79 77 Dewpt 64 63 69 71 71 70 67 66 64 65 69 70 71 72 70 68 66 66 RH 71 66 72 63 52 54 61 62 60 67 63 50 47 56 65 67 64 69 Wind dir S S S SW S S S S S S SW SW SW S S S SW SW Wind spd 10 13 13 13 13 10 11 10 11 11 12 11 9 4 5 5 6 5 Wind gust 24 20 21 20 21 21 23 Clouds 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 0.01 0 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S S Tstms S S S S S S Heat index 90 98 94 97102 97 Max heat 90 99 90 82 97 103 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 97 75 95 74 94 73 91 Temp 93 92 82 78 94 91 79 75 91 90 77 75 90 89 76 73 88 86 Dewpt 69 68 66 66 70 70 69 69 71 71 70 69 71 71 70 68 69 69 PWind dir SW S SW SW S S S SE E Wind char LT GN GN LT LT LT LT LT LT Avg clouds SC FW FW FW FW FW FW SC SC SC SC SC B1 SC SC SC SC SC PoP 12hr 5 0 5 10 10 10 10 10 10 Rain shwrs S $$