Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
740 FOUS53 KDMX 170337 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 1036 PM CDT Wed Sep 16 2026 IAZ060-170900- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 1036 PM CDT Wed Sep 16 2026 Date 09/16/26 Thu 09/17/26 Fri 09/18/26 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 67 83 71 Temp 67 67 67 69 72 76 73 70 69 68 68 71 79 83 80 76 74 72 71 Dewpt 67 67 66 69 71 73 72 70 69 68 68 71 75 78 76 73 71 70 69 RH 100100 97100 97 90 97100100100100100 88 85 88 90 90 93 93 Wind dir E NE E N N NE NE NE E E E SE S S S S S SW SW Wind spd 3 3 2 3 3 4 4 5 6 6 9 11 12 12 11 11 11 10 9 Wind gust 23 Clouds OV OV OV OV OV B2 B2 B2 B2 OV OV B2 SC FW FW SC SC B2 B1 PoP 12hr 50 30 50 50 60 QPF 12hr 0.97 0.09 0.13 0.26 0.21 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C S S C C S S L L C Tstms C C S S C C S S C C C Obvis PF+PF+PF+ Heat index 94 Max heat 95 Dense Fog Y Y Y Flood A A A Date 09/19 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 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 68 61 67 58 69 58 71 Temp 78 75 67 64 66 66 63 61 63 64 60 59 63 64 60 58 66 66 Dewpt 73 72 66 64 65 65 63 61 62 62 60 58 61 62 60 58 63 64 PWind dir W N NE NE NE N N SE S Wind char GN LT LT LT LT LT LT LT LT Avg clouds B1 B1 B2 B2 OV B2 B2 B2 B2 B2 B2 B1 B1 B2 SC SC SC B1 PoP 12hr 50 50 60 50 40 20 20 10 20 Rain shwrs C C C L L C C C S S S S S S Tstms C C C C C C S S S $$ IAZ039-170900- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 1036 PM CDT Wed Sep 16 2026 Date 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 74 63 76 67 Temp 64 63 64 67 69 72 72 66 65 64 63 66 69 74 75 70 70 69 68 Dewpt 64 63 62 66 68 69 68 66 65 64 63 66 68 71 70 70 70 68 68 RH 100100 93 97 97 90 87100100100100100 97 90 84100100 97100 Wind dir SE SE E NE NE NE NE NE E E E E SE SE SE SE S S S Wind spd 3 2 2 3 4 5 5 6 5 6 9 11 14 16 14 14 12 10 9 Clouds OV OV OV OV B2 B2 B2 B2 B2 B2 OV B2 B2 B2 B1 B1 B1 B1 B2 PoP 12hr 60 40 40 80 90 QPF 12hr 0.16 0.01 0.03 0.31 0.62 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C S S C C D C C C C D D C Tstms C C S S C C C C C C S Obvis PF PF F PF Date 09/19 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 79 61 66 57 65 55 67 54 71 Temp 78 72 64 61 63 64 59 58 61 63 57 55 63 64 57 55 66 67 Dewpt 72 68 64 61 62 60 59 57 60 58 57 55 58 58 57 55 59 60 PWind dir W N NE NE NE NE NE E S Wind char GN GN GN GN GN LT LT LT LT Avg clouds B2 B2 B1 B2 OV B2 B2 B2 OV B2 B2 B2 B1 B2 SC SC SC SC PoP 12hr 50 40 60 60 50 20 20 10 10 Rain shwrs C C C S L L C L C C S S S Tstms S C S S C S $$ IAZ048-170900- Ames-Story IA 41.99N 93.62W Elev. 936 ft 1036 PM CDT Wed Sep 16 2026 Date 09/16/26 Thu 09/17/26 Fri 09/18/26 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 63 74 65 82 69 Temp 66 65 65 68 70 73 72 69 68 67 66 69 76 82 79 74 72 71 69 Dewpt 66 65 64 68 70 71 70 69 68 67 66 69 74 77 75 74 72 71 69 RH 100100 97100100 93 93100100100100100 94 85 88100100100100 Wind dir SE SE NE N N NE NE NE E E E SE SE S S S SW SW SW Wind spd 2 2 1 2 3 4 3 4 5 6 9 11 13 13 12 11 9 8 5 Wind gust 24 Clouds OV OV OV OV OV B2 OV B2 B2 B2 OV OV B1 SC SC SC B2 B1 B2 PoP 12hr 50 30 60 70 70 QPF 12hr 0.28 0.03 0.22 0.16 0.27 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C S S C L S S S C C L L C Tstms C C S S C C S S S C C C S Obvis PF PF PF Heat index 89 Max heat 91 Flood A A A Date 09/19 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 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 78 62 67 59 66 57 67 57 70 Temp 76 74 66 63 64 65 62 60 62 63 59 58 63 64 59 57 66 66 Dewpt 73 70 65 63 64 64 62 60 61 61 59 57 61 61 59 57 62 63 PWind dir W N NE NE NE NE NE SE S Wind char LT LT GN LT LT LT LT LT LT Avg clouds B1 B2 B1 B2 OV OV B2 OV OV B2 B2 B2 B2 B2 SC SC B1 B1 PoP 12hr 30 50 60 50 40 20 20 10 20 Rain shwrs C S C C L L C C C S S S S S Tstms S S C S S C S S $$ IAZ004-170900- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 1036 PM CDT Wed Sep 16 2026 Date 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 60 74 61 79 62 Temp 62 61 62 65 68 72 71 64 63 63 62 66 71 78 75 69 67 64 64 Dewpt 61 60 59 64 65 65 66 64 63 63 62 66 70 72 71 69 67 64 63 RH 97 97 90 97 90 79 84100100100100100 97 82 87100100100 97 Wind dir S SE N N NE NE E E E E E SE SE S SE S W NW N Wind spd 3 2 2 5 6 6 5 6 8 10 12 16 18 16 13 11 8 8 8 Wind gust 29 27 Clouds OV OV OV OV OV B2 B2 B2 B2 OV OV B2 B2 B1 B1 B2 SC B1 B2 PoP 12hr 40 5 90 90 70 QPF 12hr 0.02 0 0.54 0.77 0.53 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S L D L C C L L C C S Tstms S C C S C C C S Obvis PF F PF Date 09/19 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 69 56 63 54 63 53 66 52 71 Temp 65 66 59 57 60 62 57 55 58 61 55 53 61 63 55 54 65 67 Dewpt 65 64 59 57 59 61 57 55 58 60 55 53 58 60 54 53 59 61 PWind dir N N NE NE NE NE SE S SW Wind char GN GN GN GN GN LT LT LT LT Avg clouds B2 B2 B2 B2 OV B2 B2 B2 OV B2 B2 B2 B2 B1 SC SC B1 B1 PoP 12hr 20 10 50 50 40 20 20 10 20 Rain shwrs S C C C C C C S S S S Tstms S S S $$ IAZ035-170900- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 1036 PM CDT Wed Sep 16 2026 Date 09/16/26 Thu 09/17/26 Fri 09/18/26 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 61 74 63 82 67 Temp 63 63 63 67 69 72 70 67 66 66 65 68 75 81 78 73 71 69 68 Dewpt 63 63 63 67 69 69 69 67 66 66 65 68 73 76 75 73 71 69 67 RH 100100100100100 90 97100100100100100 94 85 91100100100 97 Wind dir S S N N NE NE NE E E E E SE S S S S SW SW W Wind spd 4 2 1 2 4 4 3 5 6 8 10 13 16 13 12 11 8 6 4 Clouds OV OV OV OV OV B2 B2 B2 OV B2 OV B2 B2 B1 SC B1 B1 B1 B2 PoP 12hr 30 20 80 80 80 QPF 12hr 0.03 0 0.25 0.28 0.49 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S C L D S C C D D L L S Tstms C S C C S S C C C S S Obvis PF PF F PF Heat index 86 Max heat 88 Date 09/19 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 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 75 59 64 57 64 55 68 54 71 Temp 71 70 63 60 61 62 59 58 60 60 57 55 62 64 58 55 66 66 Dewpt 70 68 63 60 61 62 59 58 60 60 57 55 60 61 58 55 61 63 PWind dir NW N NE NE NE NE E SE S Wind char LT LT LT LT LT LT LT LT LT Avg clouds B2 B2 B2 OV OV B2 B2 OV OV B2 B2 B2 B2 B1 B1 B1 B1 B1 PoP 12hr 20 30 50 40 50 20 20 10 20 Rain shwrs S S C S C C C C C S S S S S S Tstms S S S S $$ IAZ094-170900- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 1036 PM CDT Wed Sep 16 2026 Date 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 66 79 67 83 70 Temp 69 67 67 70 77 79 74 71 70 69 67 72 80 83 78 75 73 71 70 Dewpt 69 67 66 70 73 74 74 71 70 69 67 72 76 77 76 73 71 69 68 RH 100100 97100 87 85100100100100100100 88 82 94 94 93 93 93 Wind dir E SE N N N NE NE NE E E E SE S S S S S SW SW Wind spd 4 3 3 3 3 3 4 5 5 6 6 9 11 11 8 9 10 9 10 Wind gust 19 Clouds B2 OV OV OV B1 B1 B1 B1 B2 B2 B2 B1 CL CL FW SC SC B1 B1 PoP 12hr 20 20 20 10 50 QPF 12hr 0.37 0.05 0 0 0.07 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S S C C C Tstms S S S S S C C C Obvis PF+PF+ F+ PF Heat index 87 92 Max heat 84 88 95 Dense Fog Y Y Y Flood A A A Date 09/19 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 81 65 69 62 67 58 68 57 70 Temp 79 75 68 65 69 67 64 62 66 64 60 59 66 64 59 58 68 65 Dewpt 73 73 68 65 68 66 64 62 65 63 60 58 64 63 59 58 65 64 PWind dir SW N NE NE N N N E S Wind char GN LT LT LT LT LT LT LT LT Avg clouds B1 B1 B1 B2 OV B2 B2 B2 OV B2 B1 B1 B1 B1 SC SC B1 SC PoP 12hr 30 70 70 60 30 20 20 10 20 Rain shwrs C L L L L C L C S S S S S S Tstms C C C C C C S $$ IAZ017-170900- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 1036 PM CDT Wed Sep 16 2026 Date 09/16/26 Thu 09/17/26 Fri 09/18/26 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 59 73 60 75 64 Temp 61 61 61 65 68 71 71 64 62 61 62 64 68 72 74 69 68 66 66 Dewpt 61 61 60 65 66 67 66 64 62 61 62 64 68 70 70 69 68 66 66 RH 100100 97100 93 87 84100100100100100100 93 87100100100100 Wind dir S SE E NE NE NE NE E E E E E SE SE SE S S SW W Wind spd 3 2 1 3 4 5 4 5 5 6 9 13 18 16 14 13 10 8 5 Wind gust 29 26 Clouds OV OV OV OV OV B2 B2 B2 B2 B2 OV OV B2 B2 B1 B1 B2 B2 B1 PoP 12hr 50 20 60 100 90 QPF 12hr 0.07 0 0.13 0.71 1.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C L L C C D D D D C Tstms S C C S C C C C S Obvis PF PF F PF Date 09/19 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 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 73 57 63 54 62 53 65 52 69 Temp 71 67 60 58 59 61 56 55 58 60 54 53 60 62 54 53 65 65 Dewpt 69 65 60 58 59 60 56 55 58 58 54 53 57 58 54 53 59 60 PWind dir NW NE NE E E E E SE SW Wind char GN GN GN LT GN LT LT LT LT Avg clouds B2 B2 B2 OV OV B2 B2 OV OV B2 B2 B2 B2 B1 B1 SC B1 B1 PoP 12hr 30 30 50 50 50 20 20 10 20 Rain shwrs C C C S C C C C C C S S S S Tstms S S S $$ IAZ049-170900- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 1036 PM CDT Wed Sep 16 2026 Date 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 73 63 79 68 Temp 64 63 64 68 69 73 71 67 66 65 64 68 73 79 76 72 71 70 68 Dewpt 64 63 63 68 69 70 69 67 66 65 64 68 71 74 73 72 71 69 68 RH 100100 97100100 90 93100100100100100 93 85 90100100 97100 Wind dir SE SE E NE N NE NE NE E E E E SE SE SE S S S SW Wind spd 3 2 2 2 3 4 4 5 5 6 8 10 13 13 12 11 10 9 8 Clouds OV OV OV OV OV B2 B2 B2 B2 B2 OV B2 B2 SC SC B1 B1 B2 B2 PoP 12hr 70 30 60 80 70 QPF 12hr 0.61 0.03 0.04 0.20 0.35 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C S C L L S S C C L L C Tstms C C S S C C S S S C C C C Obvis F PF PF PF Flood A A A Date 09/19 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 79 61 66 57 66 55 67 55 70 Temp 76 74 64 62 64 63 60 58 61 63 57 56 62 64 57 55 65 65 Dewpt 72 69 64 62 63 62 60 58 60 60 57 55 59 60 57 55 60 61 PWind dir W N NE NE NE NE NE E S Wind char GN LT GN LT LT LT LT LT LT Avg clouds B2 B2 B1 B2 OV OV B2 B2 B2 B2 B2 B1 B1 B2 SC SC SC B1 PoP 12hr 40 50 60 60 50 20 20 10 10 Rain shwrs C C C C L L C L C C S S S Tstms C C C S S C C S $$ IAZ086-170900- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 1036 PM CDT Wed Sep 16 2026 Date 09/16/26 Thu 09/17/26 Fri 09/18/26 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 78 67 83 71 Temp 69 68 68 72 75 77 76 71 70 69 68 72 78 83 79 74 73 72 71 Dewpt 69 68 67 71 74 75 74 71 70 69 68 72 76 79 78 74 73 71 71 RH 100100 97 97 97 94 94100100100100100 94 88 97100100 97100 Wind dir E E E E NE N NE NE NE E E E SE S SE S S S SW Wind spd 4 3 3 3 3 4 4 5 5 6 6 9 10 10 8 9 9 9 8 Clouds OV OV OV OV OV B2 B2 B1 B2 B2 OV B2 B1 FW FW FW SC B1 B2 PoP 12hr 50 30 30 50 40 QPF 12hr 0.79 0.14 0.27 0.25 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C S S C C C C C Tstms C C S S C C S S C Obvis PF+PF+PF+ Heat index 93 Max heat 94 Dense Fog Y Y Y Flood A A A Date 09/19 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 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 66 71 62 69 59 69 58 72 Temp 80 78 69 66 69 69 64 62 66 66 61 60 66 65 60 58 68 67 Dewpt 75 76 69 66 69 68 64 62 65 65 61 59 64 64 60 58 65 66 PWind dir SW N NE NE NE N N E S Wind char GN LT LT LT LT LT LT LT LT Avg clouds B2 B1 B1 B2 OV B2 B2 B2 OV B2 B1 B1 B2 B1 SC SC B1 SC PoP 12hr 50 60 70 60 40 20 20 10 20 Rain shwrs C S C L L L C L C C S S S S S Tstms S S C C C C C S $$