Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
274 FOUS53 KDMX 070627 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 127 AM CDT Mon Sep 7 2026 IAZ060-080900- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 127 AM CDT Mon Sep 7 2026 Date 09/06/26 Mon 09/07/26 Tue 09/08/26 Wed 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 84 70 94 71 Temp 69 68 73 79 83 81 75 73 71 70 79 90 93 89 80 75 73 71 Dewpt 67 64 62 63 64 63 60 58 57 58 62 68 70 72 72 72 72 70 RH 93 87 68 58 53 54 60 59 61 66 56 49 47 57 77 90 97 97 Wind dir SE SE SE SE SE SE SE SE SE SE S S S NE N SE W SW Wind spd 8 10 10 11 12 11 12 11 10 10 9 10 10 6 8 6 4 3 Clouds B2 B2 B1 B1 SC SC SC SC SC B1 SC SC SC B1 B1 B2 B2 B2 PoP 12hr 20 20 20 40 100 QPF 12hr 0.04 0.47 0 0.02 0.58 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C S L L D D C Tstms S C C C S Heat index 100 96 Max heat 86 81 94 102 96 Date 09/09 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 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 62 82 62 87 67 84 63 79 Temp 80 79 67 62 79 78 66 63 83 83 72 67 81 79 68 64 75 73 Dewpt 66 64 62 59 59 62 59 58 66 67 65 62 63 63 61 59 62 61 PWind dir NW NW NW S S SW NE SE SE Wind char LT LT LT LT GN GN GN LT GN Avg clouds B2 SC FW FW FW CL CL FW SC FW SC SC SC FW SC SC B1 SC PoP 12hr 30 0 0 5 20 40 10 30 50 Rain shwrs C S S S C S S C C C Tstms S C S S C S $$ IAZ039-080900- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 127 AM CDT Mon Sep 7 2026 Date 09/06/26 Mon 09/07/26 Tue 09/08/26 Wed CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 63 80 64 86 68 Temp 66 63 70 77 79 77 71 68 67 65 73 80 84 82 75 72 70 68 Dewpt 62 59 61 61 61 61 60 58 58 59 62 66 70 71 71 71 70 68 RH 87 87 73 58 54 58 68 70 73 81 68 62 63 69 87 97100100 Wind dir SE SE SE SE SE SE SE SE SE SE S S S SE SW SW SW SW Wind spd 8 9 11 12 13 12 13 12 12 10 11 11 10 6 5 5 5 4 Clouds B1 B1 SC B1 B1 SC SC B1 B1 B1 B2 B1 B1 B2 B2 B2 B2 B1 PoP 12hr 5 5 30 70 100 QPF 12hr 0 0 0.02 0.05 0.63 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C D D D D S Tstms S S S C C C S Date 09/09 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 81 57 79 58 82 63 80 58 74 Temp 78 75 63 57 76 74 63 59 79 78 68 63 77 75 63 59 71 69 Dewpt 63 61 59 55 58 60 58 56 64 65 63 60 63 62 58 56 60 59 PWind dir W NW W S S SW N E NE Wind char GN LT LT LT GN GN GN GN GN Avg clouds B1 SC FW FW FW CL CL FW SC SC SC SC FW FW FW SC B1 B1 PoP 12hr 20 0 0 0 20 40 10 30 50 Rain shwrs S S S C C C C C Tstms C C C S $$ IAZ048-080900- Ames-Story IA 41.99N 93.62W Elev. 936 ft 127 AM CDT Mon Sep 7 2026 Date 09/06/26 Mon 09/07/26 Tue 09/08/26 Wed 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 82 67 90 68 Temp 68 66 71 77 81 79 72 70 68 68 76 85 88 85 76 73 71 69 Dewpt 66 65 63 64 64 64 61 59 58 58 63 68 72 72 74 72 70 68 RH 93 97 76 64 56 60 68 68 70 70 64 57 59 65 94 97 97 97 Wind dir SE SE SE SE SE SE SE SE SE SE S S SW SW S SW SW SW Wind spd 5 9 10 11 12 11 12 11 11 9 9 9 9 4 4 3 3 2 Clouds B2 B2 B2 B1 B1 SC SC B1 B1 B1 B2 SC B1 OV B2 OV B2 B2 PoP 12hr 20 30 40 60 100 QPF 12hr 0.04 0.17 0.02 0.12 0.54 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C S C S C D D D D Tstms S C C C C S Heat index 95 91 Max heat 84 90 97 90 Date 09/09 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 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 82 59 81 61 85 64 82 60 76 Temp 79 77 64 59 78 77 64 61 81 81 70 65 79 77 65 62 73 71 Dewpt 65 64 61 57 59 62 59 58 67 68 65 61 63 63 60 58 62 61 PWind dir NW NW W S S SW NE E E Wind char LT LT LT LT GN LT GN LT GN Avg clouds B2 SC FW FW FW CL CL FW SC SC SC SC FW FW SC SC B1 B1 PoP 12hr 10 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 $$ IAZ004-080900- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 127 AM CDT Mon Sep 7 2026 Date 09/06/26 Mon 09/07/26 Tue 09/08/26 Wed CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 64 81 66 83 62 Temp 66 66 71 77 80 78 72 70 68 68 73 78 81 79 70 67 64 62 Dewpt 65 65 67 67 67 66 63 61 61 61 64 68 71 71 68 64 59 55 RH 97 97 87 71 65 67 73 73 78 78 73 71 72 77 93 90 84 78 Wind dir SE SE S SE S SE S S SE S S SW SW SW W W W W Wind spd 6 12 16 19 19 17 18 18 16 16 13 12 10 6 4 4 4 5 Wind gust 17 29 29 29 28 Clouds B1 B2 B2 B1 SC SC B1 B2 B2 B2 B2 B2 B1 B1 SC FW FW SC PoP 12hr 30 30 60 70 30 QPF 12hr 0.05 0.35 0.26 0.07 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C L C C C C C C Tstms C S S S S C C Date 09/09 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 77 54 80 60 83 59 78 54 70 Temp 74 73 58 54 77 76 63 61 80 79 65 59 75 73 59 56 67 65 Dewpt 59 61 55 52 59 62 57 56 66 67 58 53 59 59 54 52 57 56 PWind dir NW NW SW S SW NW N NE NE Wind char GN LT LT GN BZ GN GN LT GN Avg clouds SC FW FW FW CL CL CL FW SC FW FW FW FW SC SC SC B1 B1 PoP 12hr 5 0 0 5 20 20 5 30 50 Rain shwrs S S S S C C C Tstms S S S S S S S $$ IAZ035-080900- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 127 AM CDT Mon Sep 7 2026 Date 09/06/26 Mon 09/07/26 Tue 09/08/26 Wed 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 64 82 66 86 65 Temp 67 65 71 76 81 78 72 70 68 67 74 82 85 81 73 71 67 65 Dewpt 66 65 65 65 67 66 61 59 59 60 64 70 73 72 73 70 67 64 RH 97100 81 69 63 67 68 68 73 78 71 67 67 74100 97100 97 Wind dir SE SE SE SE SE SE SE SE S SE S S SW SW S SW W W Wind spd 8 10 11 13 13 12 13 14 12 10 10 9 6 3 3 3 2 2 Clouds B1 B2 B1 B1 SC SC B1 B2 B1 B2 B2 B1 B2 B1 B2 B1 B1 B1 PoP 12hr 30 30 60 80 80 QPF 12hr 0.05 0.39 0.11 0.31 0.23 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C L C C L D D L L Tstms C S S C C C C Heat index 93 Max heat 85 86 93 Date 09/09 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 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 55 81 59 84 62 81 57 72 Temp 77 75 61 55 77 76 63 60 80 80 67 62 76 76 62 58 68 67 Dewpt 62 64 59 54 60 63 58 57 68 70 63 58 62 62 57 55 60 60 PWind dir NW NW SW S S SW NE E NE Wind char LT LT LT LT GN LT GN LT GN Avg clouds B1 FW FW FW FW CL CL FW SC FW SC SC SC FW SC SC B2 B1 PoP 12hr 10 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 $$ IAZ094-080900- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 127 AM CDT Mon Sep 7 2026 Date 09/06/26 Mon 09/07/26 Tue 09/08/26 Wed CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 67 86 69 94 71 Temp 69 68 74 81 85 83 76 73 71 70 80 91 94 90 82 79 73 71 Dewpt 66 64 63 65 65 65 61 57 56 58 64 68 69 70 69 69 71 70 RH 90 87 69 58 51 55 60 57 59 66 58 47 44 52 65 72 93 97 Wind dir E SE SE SE SE SE SE SE S S S S S S S S SW SW Wind spd 8 9 10 11 11 10 10 10 10 10 10 12 11 8 8 8 5 4 Clouds B1 B1 SC B1 SC FW SC SC B1 B1 B1 SC FW B1 B1 B1 B2 B2 PoP 12hr 20 20 0 20 90 QPF 12hr 0.04 0.25 0 0 0.28 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C D D L Tstms C C C C C Heat index 99 95 Max heat 84 88 83 96 101 92 Date 09/09 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 83 62 82 61 84 66 84 63 81 Temp 80 78 67 62 79 76 65 62 82 81 70 66 82 79 69 64 77 74 Dewpt 69 66 63 59 59 60 59 59 65 66 66 63 65 64 62 59 63 62 PWind dir NW N N SE S S NE SE SW Wind char LT LT LT LT GN GN GN GN GN Avg clouds B2 B1 SC SC FW CL CL FW SC FW SC SC SC FW FW SC B1 SC PoP 12hr 70 10 0 5 10 50 10 30 50 Rain shwrs L C C C S C C C Tstms C S C C S S S $$ IAZ017-080900- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 127 AM CDT Mon Sep 7 2026 Date 09/06/26 Mon 09/07/26 Tue 09/08/26 Wed 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 80 63 83 64 Temp 65 63 69 76 79 77 70 67 66 64 71 79 82 78 71 69 66 64 Dewpt 64 63 62 63 62 62 60 58 59 59 63 66 70 71 70 68 65 62 RH 97100 78 64 56 60 71 73 78 84 76 64 67 79 97 97 97 93 Wind dir SE SE SE SE SE SE SE S S SE S S S S SW SW W W Wind spd 8 10 12 14 16 14 16 14 13 12 11 11 8 6 4 4 4 3 Wind gust 25 Clouds B1 B1 B1 B1 B1 SC B1 B1 B2 B2 OV B1 B1 B1 B1 B1 B1 B1 PoP 12hr 10 20 70 80 70 QPF 12hr 0 0.01 0.09 0.16 0.26 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C D S C L L L C C Tstms C S S S C C C S Date 09/09 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 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 54 79 58 82 59 78 55 69 Temp 75 73 59 54 76 74 62 59 78 77 66 60 75 73 60 56 66 64 Dewpt 61 60 57 53 58 61 57 55 65 66 61 56 60 59 55 53 58 57 PWind dir NW NW W S S SW N NE NE Wind char GN LT LT LT GN GN GN LT GN Avg clouds SC FW FW FW CL CL CL FW SC FW SC SC FW FW SC SC B2 B1 PoP 12hr 5 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 $$ IAZ049-080900- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 127 AM CDT Mon Sep 7 2026 Date 09/06/26 Mon 09/07/26 Tue 09/08/26 Wed CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 63 82 64 89 67 Temp 66 63 71 77 80 77 70 68 66 65 74 83 87 84 75 72 70 68 Dewpt 64 59 61 60 59 60 60 58 58 58 62 66 70 72 71 71 69 68 RH 93 87 71 56 49 56 71 70 75 78 66 57 57 67 87 97 97100 Wind dir SE SE SE SE SE SE SE SE SE SE S S S SE SW SW SW SW Wind spd 6 8 10 11 12 11 11 10 10 9 10 9 8 4 4 4 4 3 Clouds B1 B1 B1 B1 SC FW SC SC B1 B1 B2 B1 B1 B2 B2 B2 B2 B2 PoP 12hr 20 20 30 60 100 QPF 12hr 0 0.02 0.01 0.20 0.60 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C L L D D S Tstms S C C C S Heat index 92 89 Max heat 82 87 94 87 Date 09/09 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 82 57 80 58 84 63 82 58 76 Temp 79 76 63 57 77 75 62 59 80 79 68 63 78 76 64 60 72 70 Dewpt 64 62 59 55 58 60 57 56 64 65 63 60 62 61 59 56 60 59 PWind dir NW NW W S S SW N E E Wind char LT LT LT LT GN GN LT LT GN Avg clouds B1 SC FW FW FW CL CL FW SC SC SC SC FW FW FW SC B1 B1 PoP 12hr 20 0 0 0 20 50 10 30 50 Rain shwrs S S S C C S C C C Tstms S C C S C S $$ IAZ086-080900- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 127 AM CDT Mon Sep 7 2026 Date 09/06/26 Mon 09/07/26 Tue 09/08/26 Wed 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 84 67 94 73 Temp 69 66 74 79 83 80 72 70 68 69 79 90 94 90 82 79 75 73 Dewpt 63 59 61 61 60 60 60 58 58 57 61 65 68 70 70 69 72 72 RH 81 78 64 54 46 51 66 66 70 66 54 44 43 52 67 72 90 97 Wind dir SE SE SE SE SE SE SE SE SE SE S S S S S S S SW Wind spd 9 8 9 10 11 10 10 9 9 9 10 10 10 6 9 9 5 4 Clouds B1 B1 SC SC FW FW SC SC SC B1 B1 SC FW SC B1 B1 B2 OV PoP 12hr 0 5 0 20 80 QPF 12hr 0 0 0 0.01 0.37 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C D D L Tstms C C C C S Heat index 99 96 Max heat 81 84 93 99 92 Date 09/09 Thu 09/10/26 Fri 09/11/26 Sat 09/12/26 Sun 09/13/26 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 62 82 60 87 66 86 63 81 Temp 82 80 67 62 78 78 64 61 83 83 71 67 82 81 68 65 77 76 Dewpt 71 68 64 60 59 62 59 59 65 67 66 65 66 66 63 61 64 65 PWind dir W NW N SE S S N E S Wind char LT LT LT LT GN GN GN LT GN Avg clouds B2 B1 SC FW FW CL CL FW SC FW FW SC SC FW FW SC SC SC PoP 12hr 60 5 0 0 10 50 20 30 40 Rain shwrs L S C C S S C C C Tstms S S C C S S S S $$