Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
422 FOUS53 KDMX 071043 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 543 AM CDT Mon Sep 7 2026 IAZ060-072100- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 543 AM CDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 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 70 94 71 83 Temp 69 73 79 83 81 75 73 71 70 79 90 93 89 80 75 73 71 76 80 83 79 Dewpt 66 62 63 64 63 60 58 57 58 62 68 70 72 72 72 72 70 70 66 65 64 RH 90 68 58 53 54 60 59 61 66 56 49 47 57 77 90 97 97 82 62 55 60 Wind dir SE SE SE SE SE SE SE S SE S S S NE N SE W SW W NW NW NW Wind spd 10 10 11 12 11 12 11 10 10 9 10 10 6 8 6 4 3 4 8 8 4 Clouds B2 B1 B1 B1 SC SC SC B1 B1 SC SC SC B1 B1 B2 B2 B2 B2 B1 SC SC PoP 12hr 30 20 30 100 30 QPF 12hr 0.47 0 0.02 0.58 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C C S L L D D C C S S Tstms S S C C C S Heat index 100 96 Max heat 86 81 94 102 96 83 85 Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 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 82 62 87 67 84 63 79 Temp 67 62 79 78 66 63 83 83 72 67 81 79 68 64 75 73 Dewpt 62 59 59 62 59 58 66 67 65 62 63 63 61 59 62 61 PWind dir NW NW S S SW NE SE SE Wind char LT LT LT GN GN GN LT GN Avg clouds FW FW FW CL CL FW SC FW SC SC SC FW SC SC B1 SC PoP 12hr 0 0 5 20 40 10 30 50 Rain shwrs S S C S S C C C Tstms S C S S C S $$ IAZ039-072100- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 543 AM CDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 64 86 68 81 Temp 64 70 77 79 77 71 68 67 65 73 80 84 82 75 72 70 68 74 78 80 75 Dewpt 60 61 61 61 61 60 58 58 59 62 66 70 71 71 71 70 68 67 63 61 61 RH 87 73 58 54 58 68 70 73 81 68 62 63 69 87 97100100 79 60 52 62 Wind dir SE SE SE SE SE SE SE S SE S S S SE SW SW SW SW W NW NW NW Wind spd 9 11 12 13 12 13 12 13 11 11 11 10 6 5 5 5 4 8 9 11 8 Clouds B1 SC B1 B1 SC SC B1 B1 B1 B2 B1 B1 B2 B2 B2 B2 B1 B1 SC SC FW PoP 12hr 10 30 60 100 20 QPF 12hr 0 0.02 0.05 0.63 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C D D D D S S S S Tstms S S C C C S Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 57 79 58 82 63 80 58 74 Temp 63 57 76 74 63 59 79 78 68 63 77 75 63 59 71 69 Dewpt 59 55 58 60 58 56 64 65 63 60 63 62 58 56 60 59 PWind dir NW W S S SW N E NE Wind char LT LT LT GN GN GN GN GN Avg clouds FW FW FW CL CL FW SC SC SC SC FW FW FW SC B1 B1 PoP 12hr 0 0 0 20 40 10 30 50 Rain shwrs S C C C C C Tstms C C C S $$ IAZ048-072100- Ames-Story IA 41.99N 93.62W Elev. 936 ft 543 AM CDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 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 67 90 68 82 Temp 68 71 77 81 79 72 70 68 68 76 85 88 85 76 73 71 69 74 79 81 77 Dewpt 66 63 64 64 64 61 59 58 58 63 68 72 72 74 72 70 68 68 65 63 64 RH 93 76 64 56 60 68 68 70 70 64 57 59 65 94 97 97 97 82 62 54 64 Wind dir SE SE SE SE SE SE SE S SE S S SW SW S SW SW SW NW NW NW NW Wind spd 9 10 11 12 11 12 11 11 9 9 9 9 4 4 3 3 2 5 6 8 4 Clouds B2 B2 B1 B1 SC SC B1 B1 B1 B2 SC B1 OV B2 OV B2 B2 B2 SC SC FW PoP 12hr 30 40 60 100 10 QPF 12hr 0.17 0.02 0.12 0.54 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S C C D D D D Tstms S S C C C C S Heat index 95 91 Max heat 84 90 97 90 83 Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 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 59 81 61 85 64 82 60 76 Temp 64 59 78 77 64 61 81 81 70 65 79 77 65 62 73 71 Dewpt 61 57 59 62 59 58 67 68 65 61 63 63 60 58 62 61 PWind dir NW W S S SW NE E E Wind char LT LT LT GN LT GN LT GN Avg clouds FW FW FW CL CL FW SC SC SC SC FW FW SC SC B1 B1 PoP 12hr 0 0 5 20 30 10 30 50 Rain shwrs S S C S S C C C Tstms S C S S C S $$ IAZ004-072100- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 543 AM CDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 66 83 62 77 Temp 66 71 77 80 78 72 70 68 68 73 78 81 79 70 67 64 62 69 74 76 73 Dewpt 65 67 67 67 66 63 61 61 61 64 68 71 71 68 64 59 55 59 59 60 61 RH 97 87 71 65 67 73 73 78 78 73 71 72 77 93 90 84 78 70 59 58 66 Wind dir SE S S S SE S S SE S S SW SW SW W W W W NW NW NW NW Wind spd 12 16 19 19 18 19 19 17 16 13 12 10 6 4 4 4 5 11 12 12 6 Wind gust 29 31 29 29 Clouds B2 B2 B2 SC SC B1 B2 B2 B2 B2 B2 B1 B1 SC FW FW SC SC FW CL CL PoP 12hr 30 60 40 30 5 QPF 12hr 0.35 0.26 0.07 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S C L C C S C C C Tstms S S C S S S S C C Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 54 80 60 83 59 78 54 70 Temp 58 54 77 76 63 61 80 79 65 59 75 73 59 56 67 65 Dewpt 55 52 59 62 57 56 66 67 58 53 59 59 54 52 57 56 PWind dir NW SW S SW NW N NE NE Wind char LT LT GN BZ GN GN LT GN Avg clouds FW FW CL CL CL FW SC FW FW FW FW SC SC SC B1 B1 PoP 12hr 0 0 5 20 20 5 30 50 Rain shwrs S S S S C C C Tstms S S S S S S S $$ IAZ035-072100- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 543 AM CDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 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 66 86 65 81 Temp 68 71 76 81 78 72 70 68 67 74 82 85 81 73 71 67 65 72 77 80 75 Dewpt 67 65 65 67 66 61 59 59 60 64 70 73 72 73 70 67 64 64 62 62 64 RH 97 81 69 63 67 68 68 73 78 71 67 67 74100 97100 97 76 60 54 69 Wind dir SE SE SE SE SE SE SE S SE S S SW SW S SW W W NW NW NW NW Wind spd 10 11 13 13 12 14 14 13 11 10 9 6 3 3 3 2 2 5 8 8 3 Clouds B2 B2 B1 B1 SC B1 B2 B2 B2 B2 B1 B2 B1 B2 B1 B1 B1 B1 SC FW FW PoP 12hr 30 60 60 80 10 QPF 12hr 0.39 0.11 0.31 0.23 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S C L C C C D D L L Tstms S S S S C C C C Heat index 93 Max heat 85 86 93 81 Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 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 55 81 59 84 62 81 57 72 Temp 61 55 77 76 63 60 80 80 67 62 76 76 62 58 68 67 Dewpt 59 54 60 63 58 57 68 70 63 58 62 62 57 55 60 60 PWind dir NW SW S S SW NE E NE Wind char LT LT LT GN LT GN LT GN Avg clouds FW FW FW CL CL FW SC FW SC SC SC FW SC SC B2 B1 PoP 12hr 0 0 0 20 30 5 40 50 Rain shwrs S S C S S C C C Tstms S C S S C C $$ IAZ094-072100- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 543 AM CDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 69 94 71 83 Temp 68 74 81 85 83 76 73 71 70 80 91 94 90 82 79 73 71 76 80 83 78 Dewpt 65 63 65 65 65 61 57 56 58 64 68 69 70 69 69 71 70 71 69 67 66 RH 90 69 58 51 55 60 57 59 66 58 47 44 52 65 72 93 97 85 69 59 67 Wind dir SE SE SE SE SE SE SE S S S S S S S S SW SW W NW NW N Wind spd 9 10 11 11 10 10 10 10 10 10 12 11 8 8 8 5 4 4 5 6 4 Clouds B1 B1 B1 SC FW SC SC B1 B1 B1 SC FW B1 B1 B1 B2 B2 B2 B2 SC SC PoP 12hr 20 0 10 90 70 QPF 12hr 0.25 0 0 0.28 0.10 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C C D D L L C C Tstms S C C C C C S S Heat index 99 95 Max heat 84 88 83 96 101 92 85 87 Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 62 82 61 84 66 84 63 81 Temp 67 62 79 76 65 62 82 81 70 66 82 79 69 64 77 74 Dewpt 63 59 59 60 59 59 65 66 66 63 65 64 62 59 63 62 PWind dir N N SE S S NE SE SW Wind char LT LT LT GN GN GN GN GN Avg clouds SC SC FW CL CL FW SC FW SC SC SC FW FW SC B1 SC PoP 12hr 10 0 5 10 50 10 30 50 Rain shwrs C C S C C C Tstms C C S S S $$ IAZ017-072100- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 543 AM CDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 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 80 63 83 64 78 Temp 65 69 76 79 77 70 67 66 64 71 79 82 78 71 69 66 64 71 75 77 73 Dewpt 63 62 63 62 62 60 58 59 59 63 66 70 71 70 68 65 62 63 61 60 60 RH 93 78 64 56 60 71 73 78 84 76 64 67 79 97 97 97 93 76 62 56 64 Wind dir SE S S SE SE SE S S SE S S S S SW SW W W NW NW NW NW Wind spd 10 12 14 16 14 16 14 14 12 11 11 8 6 4 4 4 3 9 11 12 6 Wind gust 25 26 Clouds B1 B1 B1 B1 SC B1 B1 B2 B2 OV B1 B1 B1 B1 B1 B1 B1 SC FW FW FW PoP 12hr 20 70 80 70 5 QPF 12hr 0.01 0.09 0.16 0.26 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C D S C C L L C C Tstms C S C C C S Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 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 54 79 58 82 59 78 55 69 Temp 59 54 76 74 62 59 78 77 66 60 75 73 60 56 66 64 Dewpt 57 53 58 61 57 55 65 66 61 56 60 59 55 53 58 57 PWind dir NW W S S SW N NE NE Wind char LT LT LT GN GN GN LT GN Avg clouds FW FW CL CL CL FW SC FW SC SC FW FW SC SC B2 B1 PoP 12hr 0 0 0 20 40 5 30 50 Rain shwrs S S C S S C C C Tstms S C S S C S S $$ IAZ049-072100- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 543 AM CDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 64 89 67 82 Temp 66 71 77 80 77 70 68 66 65 74 83 87 84 75 72 70 68 74 79 81 76 Dewpt 62 61 60 59 60 60 58 58 58 62 66 70 72 71 71 69 68 69 64 62 62 RH 87 71 56 49 56 71 70 75 78 66 57 57 67 87 97 97100 84 60 53 62 Wind dir SE SE SE SE SE SE SE S E S S S SE SW SW SW SW W NW NW NW Wind spd 8 10 11 12 11 11 11 11 10 10 9 8 4 4 4 4 3 4 5 8 4 Clouds B1 B2 B1 SC SC SC SC B1 B1 B2 B1 B1 B2 B2 B2 B2 B2 B2 B1 SC FW PoP 12hr 20 30 50 100 20 QPF 12hr 0.02 0.01 0.20 0.60 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C L L D D S S Tstms S C C C S Heat index 92 89 Max heat 82 87 94 87 83 Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 57 80 58 84 63 82 58 76 Temp 63 57 77 75 62 59 80 79 68 63 78 76 64 60 72 70 Dewpt 59 55 58 60 57 56 64 65 63 60 62 61 59 56 60 59 PWind dir NW W S S SW N E E Wind char LT LT LT GN GN LT LT GN Avg clouds FW FW FW CL CL FW SC SC SC SC FW FW FW SC B1 B1 PoP 12hr 0 0 0 20 50 10 30 50 Rain shwrs S S C C S C C C Tstms S C C S C S $$ IAZ086-072100- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 543 AM CDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 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 67 94 73 85 Temp 67 74 79 83 80 72 70 68 69 79 90 94 90 82 79 75 73 77 82 84 80 Dewpt 60 61 61 60 60 60 58 58 57 61 65 68 70 70 69 72 72 74 71 69 68 RH 78 64 54 46 51 66 66 70 66 54 44 43 52 67 72 90 97 90 69 61 67 Wind dir SE SE SE SE SE SE SE S S S S S S S S S SW SW W NW NW Wind spd 8 9 10 11 10 10 9 10 9 10 10 10 6 9 9 5 4 4 5 6 4 Clouds B1 SC SC FW FW SC SC SC B1 B1 SC FW SC B1 B1 B2 OV B2 B2 SC SC PoP 12hr 5 0 20 80 60 QPF 12hr 0 0 0 0.37 0.13 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C D D L L S S Tstms C C C C S S Heat index 99 96 Max heat 81 84 93 99 92 87 88 Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 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 82 60 87 66 86 63 81 Temp 67 62 78 78 64 61 83 83 71 67 82 81 68 65 77 76 Dewpt 64 60 59 62 59 59 65 67 66 65 66 66 63 61 64 65 PWind dir NW N SE S S N E S Wind char LT LT LT GN GN GN LT GN Avg clouds SC FW FW CL CL FW SC FW FW SC SC FW FW SC SC SC PoP 12hr 5 0 0 10 50 20 30 40 Rain shwrs C C S S C C C Tstms C C S S S S $$