Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
137 FOUS53 KDMX 071617 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 1117 AM CDT Mon Sep 7 2026 IAZ060-072100- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 1117 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 70 83 Temp 78 82 80 75 72 70 70 79 90 94 85 77 74 72 71 76 80 83 79 Dewpt 63 64 64 61 60 59 59 64 70 71 72 71 71 71 70 70 66 65 64 RH 60 55 58 62 66 68 68 60 52 47 65 82 90 97 97 82 62 55 60 Wind dir SE SE SE SE SE SE SE S S SW SW SE SW W SW W NW NW NW Wind spd 10 12 11 12 11 10 9 9 10 10 8 5 5 4 3 4 8 8 4 Clouds B2 B1 SC SC SC B1 B1 B1 SC SC B1 B1 B2 B2 B2 B2 B1 SC SC PoP 12hr 80 0 40 100 30 QPF 12hr 0.27 0 0.02 0.58 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L L D D C C S S Tstms C C C S Heat index 95101 91 Max heat 86 96 102 87 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 $$ IAZ039-072100- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 1117 AM CDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 65 85 68 81 Temp 77 78 75 70 68 67 65 70 81 85 80 74 72 70 68 74 78 80 75 Dewpt 61 60 61 60 60 60 60 63 67 71 72 71 71 70 68 67 63 61 61 RH 58 54 62 71 76 78 84 78 63 63 77 90 97100100 79 60 52 62 Wind dir SE SE SE SE SE SE SE SE S S S S SW SW SW W NW NW NW Wind spd 12 13 12 12 12 12 11 11 11 10 8 5 5 6 4 8 9 11 8 Clouds B1 B1 SC B1 SC B1 B2 B1 B1 B1 OV OV B2 B2 B1 B1 SC SC FW PoP 12hr 10 10 50 100 20 QPF 12hr 0 0 0.05 0.63 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C D D D D S S S S Tstms S S C C C S Heat index 90 Max heat 83 91 81 Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 57 79 58 82 63 80 58 74 Temp 63 57 76 74 63 59 79 78 68 63 77 75 63 59 71 69 Dewpt 59 55 58 60 58 56 64 65 63 60 63 62 58 56 60 59 PWind dir NW W S S SW N E NE Wind char LT LT LT GN GN GN GN GN Avg clouds FW FW FW CL CL FW SC SC SC SC FW FW FW SC B1 B1 PoP 12hr 0 0 0 20 40 10 30 50 Rain shwrs S C C C C C Tstms C C C S $$ IAZ048-072100- Ames-Story IA 41.99N 93.62W Elev. 936 ft 1117 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 89 68 82 Temp 77 80 77 71 69 67 66 75 85 89 81 75 72 71 69 74 79 81 77 Dewpt 64 65 64 62 61 60 60 65 71 73 72 72 71 70 68 68 65 63 64 RH 64 60 64 73 76 78 81 71 63 59 74 90 97 97 97 82 62 54 64 Wind dir SE SE SE SE SE S SE S S SW NW SE S W SW NW NW NW NW Wind spd 11 12 11 12 11 11 9 9 9 8 5 3 3 4 2 5 6 8 4 Clouds B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 OV B2 OV B2 B2 B2 SC SC FW PoP 12hr 70 5 60 100 10 QPF 12hr 0.07 0 0.12 0.54 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S D D D D Tstms S C C C S Heat index 90 97 Max heat 83 90 98 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 $$ IAZ004-072100- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 1117 AM CDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 65 81 60 77 Temp 75 79 76 71 68 67 66 71 79 81 77 70 67 64 62 69 74 76 73 Dewpt 68 68 67 64 62 63 64 66 70 72 71 68 65 59 55 59 59 60 61 RH 79 69 74 79 81 87 93 84 74 74 82 93 93 84 78 70 59 58 66 Wind dir S S SE S S S S S SW SW SW W W W W NW NW NW NW Wind spd 18 19 18 19 18 17 16 13 11 10 6 4 4 4 5 11 12 12 6 Wind gust 28 29 24 Clouds B2 B1 B1 B1 B2 B2 B2 B2 B1 B1 B1 SC FW FW SC SC FW CL CL PoP 12hr 20 60 60 30 5 QPF 12hr 0.12 0.26 0.07 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C C C L C C Tstms C S S S S C C Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 54 80 60 83 59 78 54 70 Temp 58 54 77 76 63 61 80 79 65 59 75 73 59 56 67 65 Dewpt 55 52 59 62 57 56 66 67 58 53 59 59 54 52 57 56 PWind dir NW SW S SW NW N NE NE Wind char LT LT GN BZ GN GN LT GN Avg clouds FW FW CL CL CL FW SC FW FW FW FW SC SC SC B1 B1 PoP 12hr 0 0 5 20 20 5 30 50 Rain shwrs S S S S C C C Tstms S S S S S S S $$ IAZ035-072100- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 1117 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 84 64 81 Temp 75 79 76 71 70 69 67 73 82 83 78 72 70 68 65 72 77 80 75 Dewpt 67 67 67 63 61 60 62 66 71 74 73 71 69 68 64 64 62 62 64 RH 76 67 74 76 73 73 84 79 69 74 85 97 97100 97 76 60 54 69 Wind dir SE SE SE SE SE S SE S S SW S S SW W W NW NW NW NW Wind spd 13 13 12 13 13 12 10 9 9 6 3 2 3 3 2 5 8 8 3 Wind gust 24 Clouds B1 B1 SC B1 B2 B2 B2 B2 B2 B1 B2 B2 B1 B1 B1 B1 SC FW FW PoP 12hr 80 40 70 80 10 QPF 12hr 0.13 0.11 0.31 0.23 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C D D L L Tstms S S C C C C Heat index 90 Max heat 82 87 92 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 $$ IAZ094-072100- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 1117 AM CDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 70 94 70 83 Temp 82 85 80 76 73 71 70 80 89 93 88 80 78 73 71 76 80 83 78 Dewpt 66 66 67 63 60 59 60 66 71 71 72 69 70 70 70 71 69 67 66 RH 58 53 65 64 64 66 71 62 56 49 59 69 76 90 97 85 69 59 67 Wind dir SE SE SE SE SE S S S S S S S SE W SW W NW NW N Wind spd 10 11 10 10 10 10 10 10 11 12 8 8 8 6 4 4 5 6 4 Wind gust 20 Clouds B1 SC SC SC SC B1 B1 SC SC FW B1 B1 B1 B2 B2 B2 B2 SC SC PoP 12hr 60 0 5 90 70 QPF 12hr 0.09 0 0 0.28 0.10 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C D D L L C C Tstms C C C C C S S Heat index 95100 95 Max heat 84 88 96 101 90 85 87 Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 62 82 61 84 66 84 63 81 Temp 67 62 79 76 65 62 82 81 70 66 82 79 69 64 77 74 Dewpt 63 59 59 60 59 59 65 66 66 63 65 64 62 59 63 62 PWind dir N N SE S S NE SE SW Wind char LT LT LT GN GN GN GN GN Avg clouds SC SC FW CL CL FW SC FW SC SC SC FW FW SC B1 SC PoP 12hr 10 0 5 10 50 10 30 50 Rain shwrs C C S C C C Tstms C C S S S $$ IAZ017-072100- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 1117 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 65 81 62 78 Temp 72 76 74 69 67 66 65 70 78 81 76 71 69 67 64 71 75 77 73 Dewpt 63 62 63 62 60 59 61 64 68 71 71 69 67 66 62 63 61 60 60 RH 73 62 69 78 78 78 87 81 71 72 85 93 93 97 93 76 62 56 64 Wind dir S SE SE SE S S S S S SW S SW SW W W NW NW NW NW Wind spd 13 16 13 16 14 13 11 11 10 8 5 4 3 4 3 9 11 12 6 Wind gust 24 Clouds B2 B1 SC B1 B2 B2 B1 B2 B2 B1 B1 B1 B1 B1 B1 SC FW FW FW PoP 12hr 20 50 70 70 5 QPF 12hr 0 0.09 0.16 0.26 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C L C 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 $$ IAZ049-072100- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 1117 AM CDT Mon Sep 7 2026 Date Mon 09/07/26 Tue 09/08/26 Wed 09/09/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 65 88 67 82 Temp 75 79 76 70 68 67 65 73 84 88 81 74 71 70 68 74 79 81 76 Dewpt 61 60 61 60 59 59 58 63 67 71 72 71 71 70 68 69 64 62 62 RH 62 52 60 71 73 75 78 71 57 57 74 90100100100 84 60 53 62 Wind dir SE SE SE SE SE SE SE S S S S S S W SW W NW NW NW Wind spd 11 12 11 11 10 10 9 9 9 8 5 4 4 4 3 4 5 8 4 Clouds B2 B1 SC B1 SC B1 B1 B1 B1 SC B2 B2 B2 B2 B2 B2 B1 SC FW PoP 12hr 20 5 50 100 20 QPF 12hr 0.01 0 0.20 0.60 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S L L D D S S Tstms S C C C S Heat index 94 86 Max heat 81 88 95 83 Date Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 57 80 58 84 63 82 58 76 Temp 63 57 77 75 62 59 80 79 68 63 78 76 64 60 72 70 Dewpt 59 55 58 60 57 56 64 65 63 60 62 61 59 56 60 59 PWind dir NW W S S SW N E E Wind char LT LT LT GN GN LT LT GN Avg clouds FW FW FW CL CL FW SC SC SC SC FW FW FW SC B1 B1 PoP 12hr 0 0 0 20 50 10 30 50 Rain shwrs S S C C S C C C Tstms S C C S C S $$ IAZ086-072100- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 1117 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 68 93 71 85 Temp 80 83 79 72 70 69 68 78 89 93 88 80 77 74 73 77 82 84 80 Dewpt 60 59 62 61 60 59 59 62 68 70 72 71 70 71 72 74 71 69 68 RH 51 44 56 68 71 70 73 58 50 47 59 74 79 90 97 90 69 61 67 Wind dir SE SE SE SE SE SE S S S S S S S SW SW SW W NW NW Wind spd 11 11 10 10 9 9 9 9 9 10 8 9 9 5 4 4 5 6 4 Clouds SC SC FW SC SC SC B1 SC SC FW SC B1 B1 B2 OV B2 B2 SC SC PoP 12hr 5 0 10 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 95 Max heat 81 84 93 101 89 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 $$