Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
035 FOUS53 KDMX 181858 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 158 PM CDT Sat Jul 18 2026 IAZ060-182100- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 158 PM CDT Sat Jul 18 2026 Date Sat 07/18/26 Sun 07/19/26 Mon 07/20/26 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 94 68 90 71 98 Temp 91 87 78 74 69 70 81 87 90 88 79 75 73 73 87 96 98 94 Dewpt 72 71 68 66 65 64 67 66 65 65 66 66 67 69 74 72 71 71 RH 54 59 71 76 87 81 63 50 44 47 64 74 81 87 65 46 42 47 Wind dir N NE NE NE NE E E E E E SE SE S S S SW SW SW Wind spd 6 9 5 3 3 3 4 5 5 6 5 5 5 5 8 9 11 10 Clouds B1 B1 B1 SC SC FW FW FW SC FW SC SC FW FW FW CL FW SC PoP 12hr 20 20 0 5 10 QPF 12hr 0.01 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C Tstms S S S S C Heat index 99 93 95105106101 Max heat 107 105 90 90 94 90 107 109 Date Tue 07/21/26 Wed 07/22/26 Thu 07/23/26 Fri 07/24/26 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 74 87 65 84 63 85 66 87 Temp 81 74 84 85 71 66 81 81 68 64 82 83 71 67 83 85 Dewpt 70 65 63 60 60 59 57 55 58 58 59 59 61 62 64 63 PWind dir W NW N N E SE SE SE Wind char GN GN LT LT LT LT LT LT Avg clouds SC FW FW FW FW FW FW FW SC FW SC SC SC B1 B1 B1 PoP 12hr 40 0 0 0 5 20 30 30 Rain shwrs C C S C C S Tstms C S S S $$ IAZ039-182100- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 158 PM CDT Sat Jul 18 2026 Date Sat 07/18/26 Sun 07/19/26 Mon 07/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 64 86 68 92 Temp 85 84 74 69 66 66 77 83 85 84 75 71 70 70 80 88 91 89 Dewpt 68 66 64 63 62 63 67 66 65 65 65 64 64 66 72 76 76 75 RH 57 55 71 81 87 90 71 57 51 53 71 79 81 87 77 68 62 64 Wind dir N N NE NE NE E SE SE SE SE SE S S S S SW SW S Wind spd 10 8 4 2 3 3 4 4 5 5 4 5 8 8 10 11 12 11 Clouds FW FW FW FW CL SC FW SC B1 FW FW SC SC B1 SC SC SC SC PoP 12hr 5 0 0 50 60 QPF 12hr 0 0 0 0.03 0.96 Snow 12hr 00-00 00-00 00-00 Rain shwrs L L L L L Tstms C C C C C Obvis K K K K K K Heat index 99104 99 Max heat 87 90 84 86 89 85 99 105 Date Tue 07/21/26 Wed 07/22/26 Thu 07/23/26 Fri 07/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 70 82 61 80 59 81 63 83 Temp 75 70 80 79 67 62 77 78 64 61 79 79 68 65 80 81 Dewpt 69 64 65 62 59 57 58 57 57 57 61 60 60 60 65 65 PWind dir SW NW N N SE S SE SE Wind char GN BZ GN LT LT LT LT LT Avg clouds SC FW FW FW FW FW FW FW SC FW SC SC SC B1 B1 B1 PoP 12hr 60 0 0 0 0 10 20 30 Rain shwrs L S S S C Tstms C S S S $$ IAZ048-182100- Ames-Story IA 41.99N 93.62W Elev. 936 ft 158 PM CDT Sat Jul 18 2026 Date Sat 07/18/26 Sun 07/19/26 Mon 07/20/26 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 90 65 88 70 97 Temp 87 86 75 70 66 67 80 85 88 86 76 73 72 72 85 93 96 92 Dewpt 72 68 67 65 64 64 67 67 66 67 66 66 66 68 74 75 75 74 RH 61 55 76 84 93 90 65 55 48 53 71 79 81 87 70 56 51 56 Wind dir N NE NE NE NE NE E E SE SE SE SE S S S SW SW SW Wind spd 8 8 4 2 2 2 4 5 4 5 4 5 5 5 8 10 10 9 Clouds B1 SC SC FW FW FW FW SC SC FW SC SC SC FW FW FW FW SC PoP 12hr 10 5 0 5 30 QPF 12hr 0 0 0 0 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C Tstms S C C Heat index 93 93105109102 Max heat 99 97 87 89 92 88 107 110 Date Tue 07/21/26 Wed 07/22/26 Thu 07/23/26 Fri 07/24/26 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 71 85 62 82 61 84 65 85 Temp 78 71 82 82 68 63 79 80 66 63 80 82 70 66 82 83 Dewpt 70 64 65 62 60 59 59 58 58 59 61 61 61 62 65 65 PWind dir W NW N N SE S SE SE Wind char LT GN LT LT LT LT LT LT Avg clouds SC FW FW FW FW FW FW FW SC FW SC SC SC B1 B1 B1 PoP 12hr 50 0 0 0 5 20 20 30 Rain shwrs C S S S C S Tstms C S S S $$ IAZ004-182100- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 158 PM CDT Sat Jul 18 2026 Date Sat 07/18/26 Sun 07/19/26 Mon 07/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 62 86 70 94 Temp 84 83 72 67 63 64 77 83 85 84 76 73 72 71 82 91 93 89 Dewpt 65 65 64 62 61 61 65 65 66 67 65 64 64 66 72 73 71 70 RH 53 55 76 84 93 90 67 55 53 57 69 73 76 84 72 56 49 54 Wind dir NE NE NE N E S S S S S S S S S SW SW W W Wind spd 9 8 4 3 3 2 6 8 9 9 11 12 13 13 13 11 11 10 Clouds SC SC FW CL FW SC FW SC FW FW SC SC SC SC SC SC SC FW PoP 12hr 0 0 0 30 40 QPF 12hr 0 0 0 0.03 0.07 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C C S Tstms S C S C C S Heat index 87 99100 94 Max heat 84 87 83 85 89 86 100 102 Date Tue 07/21/26 Wed 07/22/26 Thu 07/23/26 Fri 07/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 67 81 59 80 60 82 63 84 Temp 73 67 78 79 65 60 77 78 64 61 79 80 68 64 80 82 Dewpt 62 60 61 58 57 56 56 56 56 57 61 62 61 61 64 65 PWind dir NW NW N N SW S S S Wind char GN BZ GN LT LT GN GN LT Avg clouds FW FW FW FW CL CL FW FW FW FW SC SC SC B1 B1 SC PoP 12hr 10 0 0 0 5 20 20 20 Rain shwrs S S S S S Tstms S S S $$ IAZ035-182100- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 158 PM CDT Sat Jul 18 2026 Date Sat 07/18/26 Sun 07/19/26 Mon 07/20/26 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 87 63 88 69 96 Temp 85 84 73 67 64 65 79 85 87 86 75 73 71 71 84 93 96 91 Dewpt 69 67 64 64 62 62 66 65 66 66 66 65 64 67 73 75 74 73 RH 59 57 73 90 93 90 64 51 50 51 74 76 79 87 70 56 49 56 Wind dir NE NE NE E E E SE SE SE SE SE S S S S SW SW S Wind spd 6 6 3 2 2 2 4 5 5 5 5 5 8 6 10 10 9 8 Clouds SC SC SC FW FW FW FW FW SC SC FW SC SC FW SC FW FW SC PoP 12hr 5 0 0 10 50 QPF 12hr 0 0 0 0 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C Tstms S C C Heat index 90104106 99 Max heat 90 90 86 87 91 87 105 107 Date Tue 07/21/26 Wed 07/22/26 Thu 07/23/26 Fri 07/24/26 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 69 84 60 82 60 83 64 85 Temp 76 69 81 81 66 61 78 80 64 62 80 81 68 65 81 83 Dewpt 67 62 63 61 58 57 57 57 57 58 61 62 61 61 65 65 PWind dir NW NW N N SE S SE SE Wind char LT BZ LT LT LT LT LT LT Avg clouds FW FW FW FW FW FW FW SC SC FW SC SC SC B1 B1 B1 PoP 12hr 30 0 0 0 5 20 30 20 Rain shwrs C S S C S S Tstms S S S $$ IAZ094-182100- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 158 PM CDT Sat Jul 18 2026 Date Sat 07/18/26 Sun 07/19/26 Mon 07/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 92 70 90 71 95 Temp 91 89 79 75 72 72 82 88 90 88 79 75 73 73 85 93 95 93 Dewpt 71 71 73 70 68 66 68 68 66 66 68 69 70 71 74 72 70 70 RH 52 56 82 84 87 81 63 52 45 48 69 82 90 93 70 51 45 47 Wind dir SW W NE NE NE NE E E SE SE SE SE S S S SW SW SW Wind spd 4 4 4 4 4 4 5 4 3 4 3 4 4 5 6 9 10 9 Clouds SC SC B2 B1 SC CL FW FW FW FW FW SC SC FW FW FW FW FW PoP 12hr 20 30 5 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C Tstms C C Heat index 98 95 93101101 99 Max heat 98 100 94 92 94 91 101 103 Date Tue 07/21/26 Wed 07/22/26 Thu 07/23/26 Fri 07/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 89 65 84 64 84 66 86 Temp 81 75 87 84 70 66 82 81 68 65 81 82 71 67 82 83 Dewpt 70 66 61 58 60 59 55 54 57 58 58 58 61 62 63 63 PWind dir SW N N N E SE SE SE Wind char GN GN LT LT LT LT LT LT Avg clouds FW FW FW FW FW FW FW SC B1 SC SC B1 SC B2 B1 B1 PoP 12hr 10 5 0 5 20 20 40 30 Rain shwrs S S C C Tstms S C S $$ IAZ017-182100- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 158 PM CDT Sat Jul 18 2026 Date Sat 07/18/26 Sun 07/19/26 Mon 07/20/26 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 85 62 85 67 92 Temp 84 83 72 68 64 65 77 82 84 83 74 71 69 70 80 87 91 87 Dewpt 66 67 64 63 61 62 65 65 65 66 65 64 64 66 71 75 75 73 RH 55 59 76 84 90 90 67 56 53 57 74 79 84 87 74 68 60 63 Wind dir N N NE E E E SE SE SE SE SE S S S S SW SW S Wind spd 8 5 2 2 2 2 4 4 5 6 5 6 9 9 11 12 11 10 Clouds FW SC FW FW CL SC FW SC SC SC FW SC SC B1 SC SC SC SC PoP 12hr 0 0 0 50 60 QPF 12hr 0 0 0 0.09 0.77 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L L L L C Tstms S C C C C C C Heat index 96102 95 Max heat 83 87 82 84 87 84 96 102 Date Tue 07/21/26 Wed 07/22/26 Thu 07/23/26 Fri 07/24/26 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 67 81 59 79 58 81 62 82 Temp 74 67 78 79 66 60 77 77 63 61 78 79 67 64 80 81 Dewpt 64 62 62 60 56 56 56 56 56 56 60 61 60 60 64 64 PWind dir W NW N N SW S S S Wind char GN BZ LT LT LT LT LT LT Avg clouds FW FW FW FW FW FW FW FW FW FW FW SC SC B1 B1 B1 PoP 12hr 30 0 0 0 5 10 20 30 Rain shwrs C S S S C Tstms S S S $$ IAZ049-182100- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 158 PM CDT Sat Jul 18 2026 Date Sat 07/18/26 Sun 07/19/26 Mon 07/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 63 87 67 94 Temp 86 83 73 69 65 65 78 83 86 85 74 71 69 70 82 90 93 90 Dewpt 71 68 65 63 62 63 67 66 65 66 64 64 64 67 73 75 75 74 RH 61 61 76 81 90 93 69 57 50 53 71 79 84 90 74 62 56 60 Wind dir N NE NE NE NE E E E SE SE SE SE S S S SW SW SW Wind spd 8 8 4 3 2 3 4 4 4 4 4 5 6 6 9 10 10 9 Clouds FW SC SC FW FW CL FW SC SC FW FW SC SC SC FW FW FW SC PoP 12hr 5 0 0 20 40 QPF 12hr 0 0 0 0 0.14 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C L Tstms C C C C C Obvis K K K K K K Heat index 91 87100105 99 Max heat 89 92 85 86 90 85 102 107 Date Tue 07/21/26 Wed 07/22/26 Thu 07/23/26 Fri 07/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 70 84 60 81 59 82 63 84 Temp 76 70 81 79 66 61 77 78 64 61 79 79 68 65 80 81 Dewpt 69 64 65 62 59 57 58 57 56 56 61 60 59 60 64 64 PWind dir SW NW N N E S SE SE Wind char LT GN LT LT LT LT LT LT Avg clouds SC FW FW FW FW CL FW FW SC FW FW SC SC B1 B1 B1 PoP 12hr 60 0 0 0 5 10 20 30 Rain shwrs L S S S C Tstms C S S S $$ IAZ086-182100- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 158 PM CDT Sat Jul 18 2026 Date Sat 07/18/26 Sun 07/19/26 Mon 07/20/26 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 94 68 90 70 97 Temp 92 88 78 74 69 70 81 86 89 88 78 74 72 72 86 93 96 93 Dewpt 73 72 70 67 65 65 68 66 65 65 66 67 68 70 73 72 71 72 RH 54 59 76 79 87 84 65 51 45 47 67 79 87 93 65 51 45 51 Wind dir NW N NE NE NE E E E E E E SE S S S SW SW SW Wind spd 8 9 6 4 4 4 5 5 5 6 6 6 6 6 8 8 9 10 Clouds SC B1 SC SC SC SC FW FW SC FW FW SC SC FW CL FW FW SC PoP 12hr 20 20 5 0 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C Tstms S S S S C Obvis K K K K K K Heat index 100 94 93101104101 Max heat 99 102 91 89 92 88 102 106 Date Tue 07/21/26 Wed 07/22/26 Thu 07/23/26 Fri 07/24/26 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 74 87 64 83 62 85 65 87 Temp 80 74 85 84 70 66 81 81 67 64 82 83 70 67 83 84 Dewpt 72 69 65 62 62 60 57 56 57 58 58 58 59 61 63 62 PWind dir SW NW N N E SE SE SE Wind char GN GN LT LT LT LT LT LT Avg clouds SC FW FW FW CL FW FW FW SC FW SC SC SC SC B1 B1 PoP 12hr 50 0 0 0 5 20 20 20 Rain shwrs C C S S S S S Tstms C C S S S $$