Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
463 FOUS53 KDMX 122247 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 547 PM CDT Wed Aug 12 2026 IAZ060-130900- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 547 PM CDT Wed Aug 12 2026 Date 08/12/26 Thu 08/13/26 Fri 08/14/26 Sat 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 84 69 85 71 Temp 84 77 75 73 71 75 81 84 80 74 73 71 71 76 82 85 83 77 75 73 72 Dewpt 74 74 73 72 71 73 75 76 75 73 72 71 71 73 75 77 77 74 73 73 72 RH 72 90 94 97100 94 82 77 85 97 97100100 90 79 77 82 90 94100100 Wind dir E E E E E E E E E E E E E E E E E E E SE S Wind spd 5 6 6 8 8 8 9 9 12 12 10 10 9 9 10 10 9 9 6 5 4 Clouds SC SC B1 B2 B2 B2 B1 SC SC B2 OV OV OV OV B2 B2 B1 B1 B1 B2 B2 PoP 12hr 60 80 80 30 40 QPF 12hr 0.25 0.53 0.52 0.01 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S L L C S S C C C L C C C C S Tstms S C C S S S C C C C S S C C S Heat index 91 86 93 85 89 96 92 Max heat 99 86 87 96 91 97 91 Date 08/15 Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 83 65 79 63 81 66 83 Temp 85 85 75 70 80 79 70 66 76 76 67 64 78 78 70 67 80 79 Dewpt 76 77 73 70 74 73 69 66 69 69 67 64 71 72 68 67 72 73 PWind dir SW N N N NE SE S SE S Wind char LT LT LT LT LT LT LT LT LT Avg clouds B2 B1 B1 B1 B2 B1 B1 SC SC SC SC SC SC SC SC B1 B1 SC PoP 12hr 20 50 30 20 10 20 20 30 20 Rain shwrs S S S C C S S S S S S C S Tstms S S S C S S S S S C S $$ IAZ039-130900- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 547 PM CDT Wed Aug 12 2026 Date 08/12/26 Thu 08/13/26 Fri 08/14/26 Sat CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 68 77 65 79 68 Temp 81 74 72 70 69 72 74 76 74 70 69 67 67 71 76 79 77 73 72 70 69 Dewpt 74 72 71 69 69 70 71 71 69 69 68 67 67 69 72 73 72 71 71 70 69 RH 79 93 97 97100 93 90 85 84 97 97100100 93 87 82 85 93 97100100 Wind dir E E E E E SE E SE E E E E E E E E E E E E SE Wind spd 3 3 3 5 5 8 9 9 10 9 8 9 9 11 12 12 11 11 9 9 6 Clouds SC SC SC B1 B2 OV OV B2 B2 B2 OV OV OV OV B2 B2 B2 B2 B2 B2 OV PoP 12hr 50 90 80 70 60 QPF 12hr 0.26 0.75 0.79 0.15 0.11 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L D C L C C L L L L C C C C L L C Tstms C C S S C C C C C S S S S C C S C Heat index 86 Max heat 89 Date 08/15 Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 83 68 80 62 77 60 78 63 80 Temp 80 80 72 69 78 75 67 63 76 74 65 61 76 75 67 64 77 76 Dewpt 75 74 71 69 72 69 66 62 66 66 64 61 68 68 67 64 70 69 PWind dir S NW N N NW SW SW S S Wind char LT LT GN LT LT LT LT LT LT Avg clouds B2 B2 B1 B1 B2 B1 SC SC SC SC SC SC B1 SC SC B1 B1 SC PoP 12hr 40 60 30 10 5 20 20 40 30 Rain shwrs C S C L C S S S S C C S Tstms C S C C S S S S S S $$ IAZ048-130900- Ames-Story IA 41.99N 93.62W Elev. 936 ft 547 PM CDT Wed Aug 12 2026 Date 08/12/26 Thu 08/13/26 Fri 08/14/26 Sat 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 81 67 83 69 Temp 81 75 72 71 70 73 77 79 77 72 71 69 69 74 80 83 81 75 73 71 70 Dewpt 75 73 72 71 70 72 74 75 73 72 71 69 69 72 75 77 75 75 73 71 70 RH 82 94100100100 97 90 88 87100100100100 93 85 82 82100100100100 Wind dir E E E E NE E E E E E E E E E E E E E E E SE Wind spd 4 4 4 6 8 9 8 9 11 10 9 9 9 10 11 10 9 9 6 5 3 Clouds FW FW B1 B2 OV B2 OV B1 B1 OV OV OV OV B2 B2 B2 B2 B1 B2 OV B2 PoP 12hr 80 90 80 40 30 QPF 12hr 0.40 0.49 0.66 0.01 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs S L D C C C C L L L C C S S C C C Tstms S C C S C C C C C C S S S S C C S Obvis K Heat index 87 85 91 86 Max heat 90 85 85 92 Date 08/15 Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 68 81 63 78 61 80 64 81 Temp 83 82 73 69 79 76 68 64 76 74 66 62 77 76 68 65 79 77 Dewpt 77 77 73 69 74 72 68 64 68 68 66 62 71 72 68 65 73 72 PWind dir SW N N N NE E S SE S Wind char LT LT LT LT LT LT LT LT LT Avg clouds B2 B2 B2 B2 B2 B1 B1 SC SC SC SC SC B1 SC B1 B1 B1 B1 PoP 12hr 30 60 30 20 20 10 20 30 20 Rain shwrs C C C L C S S S S S C S Tstms S C C C S S S S C S $$ IAZ004-130900- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 547 PM CDT Wed Aug 12 2026 Date 08/12/26 Thu 08/13/26 Fri 08/14/26 Sat CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 66 77 62 76 66 Temp 81 74 71 68 67 70 73 75 74 68 66 64 64 69 72 74 75 70 69 68 67 Dewpt 71 70 68 67 66 68 69 70 70 68 66 64 64 67 70 72 72 70 69 68 67 RH 72 87 90 97 97 93 87 84 87100100100100 93 93 93 90100100100100 Wind dir E E E NE E SE E E E E E E E E E E E E SE SE E Wind spd 8 5 5 6 6 9 10 11 11 10 9 9 10 12 12 11 10 9 6 4 4 Clouds SC B1 OV OV OV OV B1 B1 SC SC B1 B1 OV B2 B2 B2 B2 OV B2 OV OV PoP 12hr 60 60 40 50 30 QPF 12hr 0.38 0.35 0.07 0.05 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C L C S S S S C C C C C C S Tstms S C S S S S S S S S S C S S Obvis K K Date 08/15 Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 80 64 76 56 77 58 78 60 79 Temp 77 76 68 64 74 74 62 58 74 74 62 59 76 75 65 61 76 76 Dewpt 73 74 68 64 68 67 60 58 64 66 61 59 68 69 65 61 68 69 PWind dir W NW N N W SW SW S SW Wind char LT LT GN LT LT LT LT LT GN Avg clouds OV B2 B2 B1 B1 B1 SC SC SC SC FW SC B1 SC SC SC B1 SC PoP 12hr 30 60 20 5 5 20 30 50 30 Rain shwrs S C L C S S C C C C C C Tstms S C C S S S C C S S C $$ IAZ035-130900- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 547 PM CDT Wed Aug 12 2026 Date 08/12/26 Thu 08/13/26 Fri 08/14/26 Sat 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 67 79 65 81 68 Temp 81 74 71 69 68 71 75 77 76 70 69 67 67 71 77 80 79 73 72 70 69 Dewpt 73 72 71 69 68 71 73 73 72 70 69 67 67 70 73 75 75 73 72 70 69 RH 77 93100100100100 94 87 87100100100100 97 87 85 88100100100100 Wind dir E E E E E E E E E E E E E E E E E E E SE SE Wind spd 5 5 4 5 6 8 6 8 9 8 6 8 8 10 10 9 8 8 4 4 3 Clouds SC SC B1 OV OV OV OV B2 B1 OV OV OV OV OV B2 B2 B2 B2 B2 OV OV PoP 12hr 70 90 70 40 40 QPF 12hr 0.61 0.46 0.83 0.01 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C D L C C C C L L C C S S C C C C C Tstms S C S S S C C C C C C S S S C C S C C Obvis K K Heat index 86 85 Max heat 94 85 Date 08/15 Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 84 66 79 59 78 59 80 62 81 Temp 81 80 71 67 77 75 65 61 75 74 63 60 77 76 66 63 78 77 Dewpt 77 76 71 67 72 71 64 61 67 68 63 60 71 71 66 63 71 71 PWind dir SW NW N N NW S SW S S Wind char LT LT LT LT LT LT LT LT LT Avg clouds OV B2 B2 B2 OV B1 SC SC B1 SC SC SC B1 SC SC SC B1 SC PoP 12hr 30 60 20 10 10 20 20 40 20 Rain shwrs C C L L S S S S S C C S S Tstms S C C C S S S C S S S $$ IAZ094-130900- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 547 PM CDT Wed Aug 12 2026 Date 08/12/26 Thu 08/13/26 Fri 08/14/26 Sat CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 71 90 70 88 72 Temp 85 79 77 74 72 79 85 88 86 78 75 73 73 79 86 88 86 80 77 75 73 Dewpt 77 76 74 72 71 73 74 75 75 74 73 72 70 73 73 74 74 73 73 72 70 RH 77 91 90 93 97 82 70 66 70 88 94 97 90 82 65 63 68 79 87 90 90 Wind dir E E E E E NE E E E E E E E SE SE S SE SE SE S SW Wind spd 3 4 5 6 8 9 10 10 10 12 10 9 8 8 10 9 8 6 5 6 5 Clouds SC SC SC B2 B2 B1 SC SC SC SC B1 B2 B2 B1 B1 SC B1 B1 B1 B2 B1 PoP 12hr 20 40 40 10 50 QPF 12hr 0.04 0.03 0.05 0 0.10 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S C S C C C Tstms S C S C S C C C Heat index 96 94 98 95 93 97 94 Max heat 97 92 95 102 92 95 99 94 Date 08/15 Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 70 85 66 80 64 83 67 85 Temp 87 87 77 72 83 80 71 67 78 76 69 65 80 80 71 68 82 81 Dewpt 73 74 73 70 73 73 71 67 69 69 67 65 70 71 69 67 71 71 PWind dir SW NE N N NE E S SE S Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 SC SC B1 B2 B1 B2 B1 B1 SC B1 B1 SC SC SC SC B1 SC PoP 12hr 10 20 30 20 10 10 10 20 10 Rain shwrs S S S C S S S S S Tstms S S S C S S S S S $$ IAZ017-130900- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 547 PM CDT Wed Aug 12 2026 Date 08/12/26 Thu 08/13/26 Fri 08/14/26 Sat 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 65 77 63 77 65 Temp 80 73 70 68 66 70 73 74 74 68 67 65 64 68 73 75 76 71 70 68 66 Dewpt 73 71 69 68 66 69 70 70 69 68 67 65 64 68 70 71 72 70 70 68 66 RH 79 93 97100100 97 90 87 84100100100100100 90 87 87 97100100100 Wind dir E E E E E SE E E E E E E E E E E E E E E E Wind spd 4 4 3 4 5 8 9 8 9 8 8 8 10 12 12 11 10 10 8 8 5 Clouds FW SC B1 B2 OV OV OV B1 B1 OV OV B2 OV B2 B2 B2 B2 B2 OV OV OV PoP 12hr 40 80 60 60 60 QPF 12hr 0.17 0.51 0.30 0.07 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C C C S S C C L L C C C C L L C Tstms S S S C C S S S S S S C C C C S Obvis K K Date 08/15 Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 81 65 77 57 77 58 78 61 79 Temp 78 78 70 66 75 74 64 60 75 74 61 60 75 75 65 62 77 75 Dewpt 74 74 70 66 70 68 62 60 65 66 61 60 68 69 65 62 69 69 PWind dir S NW N NW NW SW SW S S Wind char LT LT LT LT LT LT LT LT LT Avg clouds OV B2 B2 B2 B2 B1 SC SC SC FW FW SC B1 SC SC SC B1 SC PoP 12hr 30 60 20 5 5 20 20 40 30 Rain shwrs C C L L S S S S S C C C S Tstms S C C S S S C S S $$ IAZ049-130900- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 547 PM CDT Wed Aug 12 2026 Date 08/12/26 Thu 08/13/26 Fri 08/14/26 Sat CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 67 79 65 82 68 Temp 80 73 71 69 69 72 76 78 75 70 69 67 66 72 78 81 78 73 71 70 69 Dewpt 73 71 71 69 69 70 72 73 71 69 69 67 66 70 73 75 73 72 71 70 69 RH 79 93100100100 93 87 85 87 97100100100 93 85 82 85 97100100100 Wind dir E E E E E E E E E E NE E E E E E E E E E SE Wind spd 4 4 4 5 6 8 6 8 10 9 8 8 9 10 10 10 10 9 8 5 4 Clouds FW FW B1 B2 OV OV B2 B2 B2 OV OV OV OV OV B2 B2 B2 B2 B2 B2 B2 PoP 12hr 70 90 90 50 50 QPF 12hr 0.36 0.58 0.99 0.02 0.05 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L L C L C L L L C C S S S S C C C Tstms C C S C C C C C C S S S S S S S C C Heat index 85 87 Max heat 89 89 Date 08/15 Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 85 67 81 61 78 60 80 63 81 Temp 82 82 71 68 78 76 67 63 76 74 64 61 77 75 67 64 78 76 Dewpt 76 75 71 68 73 70 66 63 66 67 64 61 68 69 66 64 71 70 PWind dir SW NW N N N SE SW SE S Wind char LT LT LT LT LT LT LT LT LT Avg clouds B2 B1 B1 B1 B2 B1 B1 SC SC SC SC SC B1 B1 SC B1 B1 B1 PoP 12hr 30 60 30 10 10 10 10 40 20 Rain shwrs C S C L C S C S Tstms C S C C C S C S $$ IAZ086-130900- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 547 PM CDT Wed Aug 12 2026 Date 08/12/26 Thu 08/13/26 Fri 08/14/26 Sat 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 69 87 72 Temp 85 77 74 72 71 76 81 84 82 74 73 71 70 77 83 86 84 77 75 74 73 Dewpt 76 74 73 72 71 74 76 77 76 74 73 71 70 75 76 77 77 75 74 73 72 RH 75 90 97100100 94 85 80 82100100100100 94 80 75 80 94 97 97 97 Wind dir NE E E E NE NE E E E E E E E E E SE E E E SE S Wind spd 6 6 6 8 9 8 9 9 12 12 10 9 9 9 8 8 8 9 8 8 6 Wind gust 17 Clouds FW SC SC B1 B2 B2 B1 SC SC B1 OV OV B2 B2 B2 B1 SC B1 B1 B2 B2 PoP 12hr 50 80 60 40 60 QPF 12hr 0.20 0.46 0.31 0.01 0.15 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L D S C S C L L C C L L S Tstms C C C S C S C C C S S C S S Heat index 93 87 94 89 92 98 94 Max heat 98 87 88 98 86 94 100 89 Date 08/15 Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 70 85 65 81 64 83 67 85 Temp 86 87 76 71 83 81 71 67 79 78 68 65 80 80 69 68 81 81 Dewpt 77 78 74 71 76 75 71 67 70 70 68 65 71 72 69 68 73 73 PWind dir SW NE N N NE E S SE S Wind char LT LT LT LT LT LT LT LT LT Avg clouds B2 B1 SC B1 B2 B1 B1 SC SC SC SC SC SC SC SC SC B1 SC PoP 12hr 20 30 30 30 10 10 10 20 20 Rain shwrs S S C C S C S S S Tstms S S C S S S S S S $$