Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
913 FOUS53 KDMX 251027 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 527 AM CDT Tue Aug 25 2026 IAZ060-252100- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 527 AM CDT Tue Aug 25 2026 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 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 68 84 64 83 Temp 64 71 80 84 83 75 72 70 68 75 82 84 81 72 69 66 64 74 80 83 80 Dewpt 59 63 68 70 72 71 70 68 66 66 66 64 64 64 63 61 60 62 61 59 61 RH 84 76 67 63 70 87 93 93 93 74 58 51 56 76 81 84 87 66 52 44 52 Wind dir SE S S S SW SW W W W NW NW NW NW NW NW NW NW N N N N Wind spd 3 6 5 5 4 4 4 5 5 6 10 11 6 4 3 4 4 4 6 6 3 Clouds B1 B1 SC B1 B1 SC SC SC FW CL CL CL CL CL CL FW FW CL CL FW CL PoP 12hr 5 10 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 89 88 Max heat 83 91 87 85 86 82 84 Date Fri 08/28/26 Sat 08/29/26 Sun 08/30/26 Mon 08/31/26 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 85 68 88 72 92 73 89 Temp 67 62 82 81 70 68 83 85 76 73 88 88 78 73 86 85 Dewpt 61 59 62 64 61 60 66 67 65 65 70 71 68 67 71 71 PWind dir NW S SE S S S S S Wind char LT LT LT GN GN GN GN LT Avg clouds CL FW FW FW SC B1 B2 SC FW SC SC SC SC B1 B1 SC PoP 12hr 0 0 20 20 30 20 40 30 Rain shwrs S S S C S S C C Tstms S S S C S S C S $$ IAZ039-252100- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 527 AM CDT Tue Aug 25 2026 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 65 81 62 81 Temp 60 70 78 81 79 72 70 67 65 73 79 81 78 70 66 64 62 72 78 81 77 Dewpt 58 62 64 66 68 68 68 66 63 65 65 62 63 63 61 60 59 63 60 57 60 RH 93 76 62 60 69 87 93 97 93 76 62 53 60 78 84 87 90 73 54 44 56 Wind dir SE S S S S S SW W W NW NW NW NW NW NW NW N N N N N Wind spd 3 8 10 10 8 6 5 5 5 9 13 14 9 5 5 5 4 5 9 8 4 Clouds B1 SC SC SC SC B1 FW SC FW CL CL FW CL CL FW FW CL CL FW FW CL PoP 12hr 5 10 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Fri 08/28/26 Sat 08/29/26 Sun 08/30/26 Mon 08/31/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 58 82 64 82 68 87 70 86 Temp 63 59 79 78 67 64 78 79 71 68 83 83 73 70 83 82 Dewpt 57 56 61 63 61 60 66 66 64 64 70 72 68 67 70 70 PWind dir NW SW SE S S S S S Wind char LT LT LT GN BZ GN GN GN Avg clouds CL FW FW FW SC B1 B2 B1 SC SC SC SC SC B1 B1 SC PoP 12hr 0 0 10 30 40 20 50 30 Rain shwrs C S C S C C C Tstms S C S C C S $$ IAZ048-252100- Ames-Story IA 41.99N 93.62W Elev. 936 ft 527 AM CDT Tue Aug 25 2026 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 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 66 83 62 82 Temp 62 70 78 83 82 73 71 68 66 74 81 82 79 70 67 64 62 72 79 82 78 Dewpt 59 63 68 70 72 72 70 67 64 65 66 63 64 63 62 61 59 63 61 58 62 RH 90 78 71 65 72 97 97 97 93 74 60 53 60 78 84 90 90 73 54 44 58 Wind dir SE S S S SW SW W W NW NW NW NW NW N NW NW NW N N N N Wind spd 3 6 6 6 4 4 3 4 4 8 10 11 6 4 3 4 4 4 6 5 2 Clouds B1 B1 B1 SC SC SC SC SC FW CL CL FW FW CL FW FW CL CL CL FW FW PoP 12hr 5 5 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 87 Max heat 90 84 83 84 81 83 Date Fri 08/28/26 Sat 08/29/26 Sun 08/30/26 Mon 08/31/26 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 60 84 66 86 70 90 71 88 Temp 64 60 81 79 68 66 82 83 73 71 86 86 75 71 85 84 Dewpt 60 57 63 64 62 61 67 68 66 65 71 72 69 67 71 71 PWind dir N S SE S S S S S Wind char LT LT LT GN GN GN LT LT Avg clouds FW FW FW SC SC B1 B2 SC SC SC SC SC SC B1 B1 SC PoP 12hr 0 0 20 30 30 30 50 20 Rain shwrs S C S C C C C S Tstms S C S C S C C S $$ IAZ004-252100- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 527 AM CDT Tue Aug 25 2026 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 62 79 57 80 Temp 62 70 79 84 82 72 67 64 62 72 77 78 77 67 63 59 57 71 77 80 78 Dewpt 60 63 68 67 65 61 58 57 57 61 61 60 60 58 55 54 53 58 55 54 54 RH 93 78 69 57 56 68 73 78 84 68 58 54 56 73 75 83 86 63 47 41 43 Wind dir S S SW W W W NW NW NW NW NW NW N NW NW NW NW N N N N Wind spd 6 10 10 10 10 9 9 8 8 13 16 14 10 6 5 5 4 5 8 6 4 Clouds SC B1 SC SC FW FW CL FW CL FW SC FW CL CL FW CL CL CL CL FW CL PoP 12hr 20 0 0 0 0 QPF 12hr 0.10 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Date Fri 08/28/26 Sat 08/29/26 Sun 08/30/26 Mon 08/31/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 55 82 64 83 68 85 67 83 Temp 60 56 79 79 67 65 79 81 71 68 82 82 70 67 80 80 Dewpt 51 51 57 60 60 59 65 68 65 63 69 71 67 64 65 65 PWind dir NE S S S S S S S Wind char LT LT GN BZ BZ GN GN GN Avg clouds CL FW FW SC B1 B2 B2 SC SC SC B1 SC SC SC SC SC PoP 12hr 0 5 50 40 40 20 40 20 Rain shwrs C C C C S C C S Tstms S C C S S C C S $$ IAZ035-252100- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 527 AM CDT Tue Aug 25 2026 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 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 63 83 59 83 Temp 61 70 78 83 83 73 69 65 63 73 80 81 79 69 64 61 59 72 80 83 79 Dewpt 59 63 68 71 72 70 66 61 59 64 63 62 62 60 59 57 56 61 58 56 58 RH 93 78 71 67 70 90 90 87 87 73 56 53 56 73 84 87 90 68 47 40 49 Wind dir S S S SW SW W W NW NW NW NW NW N NW NW NW NW N N N N Wind spd 5 8 9 9 5 5 4 4 4 9 11 11 6 4 3 3 3 3 5 4 2 Clouds B1 B1 SC SC SC SC FW FW FW CL FW SC FW CL FW FW FW CL CL CL CL PoP 12hr 10 5 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 88 Max heat 91 84 82 84 81 82 Date Fri 08/28/26 Sat 08/29/26 Sun 08/30/26 Mon 08/31/26 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 56 84 65 86 69 89 69 87 Temp 62 57 81 80 68 65 81 82 72 70 85 85 73 69 83 82 Dewpt 57 55 60 62 61 60 66 68 65 64 71 72 68 66 69 68 PWind dir NE S SE S S S S SE Wind char LT LT GN GN GN GN LT LT Avg clouds FW FW FW SC SC B2 B2 SC SC SC B1 SC SC B1 B1 SC PoP 12hr 0 5 40 40 30 20 50 20 Rain shwrs C C S C C S C C S Tstms S C S C S S C C S $$ IAZ094-252100- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 527 AM CDT Tue Aug 25 2026 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 68 84 64 83 Temp 63 71 80 84 83 75 72 70 68 77 83 84 80 72 68 66 64 74 80 83 79 Dewpt 59 63 68 70 71 71 70 69 68 67 64 64 65 64 63 62 60 61 60 59 60 RH 87 76 67 63 67 87 93 97100 71 53 51 60 76 84 87 87 64 51 44 52 Wind dir SE SE S SE SW SW SW W W NW NW NW NW NW NW NW NW N N N N Wind spd 3 4 4 4 3 2 2 3 4 5 10 11 8 4 3 4 3 5 6 6 4 Clouds B1 B2 B1 SC SC B1 SC B1 SC SC FW CL CL CL FW FW FW FW FW CL CL PoP 12hr 5 10 5 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Fri 08/28/26 Sat 08/29/26 Sun 08/30/26 Mon 08/31/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 62 85 67 88 72 92 74 90 Temp 66 62 82 82 71 67 84 86 76 73 89 89 79 74 87 86 Dewpt 59 58 59 60 59 59 63 65 64 63 68 69 67 66 69 70 PWind dir N S SE S S S S SW Wind char LT LT LT GN GN BZ GN GN Avg clouds FW FW FW FW FW B1 B2 B1 FW SC SC SC SC B1 B1 SC PoP 12hr 0 0 10 20 20 20 30 20 Rain shwrs S S S S C S Tstms S S S S C S $$ IAZ017-252100- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 527 AM CDT Tue Aug 25 2026 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 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 83 63 81 59 81 Temp 61 70 78 81 81 72 68 65 63 73 78 79 77 68 65 61 59 71 78 80 77 Dewpt 59 62 65 67 69 67 63 60 59 63 62 60 61 60 58 57 56 60 57 54 56 RH 93 76 64 63 67 84 84 84 87 71 58 52 58 76 78 87 90 68 48 41 48 Wind dir S S S SW SW SW W W W NW NW NW NW NW NW NW NW N N N N Wind spd 4 9 9 10 8 9 5 5 6 11 14 14 9 5 4 4 4 5 8 6 3 Wind gust 19 Clouds SC B1 B1 SC SC FW FW FW CL FW FW SC CL FW FW FW CL CL FW FW CL PoP 12hr 10 10 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Fri 08/28/26 Sat 08/29/26 Sun 08/30/26 Mon 08/31/26 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 56 82 63 83 67 86 67 85 Temp 61 57 79 78 67 64 79 80 70 68 83 83 71 68 82 80 Dewpt 54 54 58 60 60 60 64 66 64 64 69 70 67 66 67 66 PWind dir N S S S S S S S Wind char LT LT GN BZ GN GN LT GN Avg clouds CL FW FW SC SC B2 B2 SC SC B1 B1 SC SC B1 B1 SC PoP 12hr 0 0 30 40 40 20 50 20 Rain shwrs C C S C C S C C S Tstms S C S C S S C C $$ IAZ049-252100- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 527 AM CDT Tue Aug 25 2026 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 65 83 61 82 Temp 61 70 78 81 80 72 69 67 65 74 80 82 78 69 65 63 61 72 79 82 77 Dewpt 59 62 65 67 70 69 68 66 63 66 65 62 64 62 60 59 58 63 60 57 61 RH 93 76 64 63 72 90 97 97 93 76 60 51 62 78 84 87 90 73 52 43 58 Wind dir SE S S S SW SW SW W NW NW NW NW NW NW NW NW NW N N N N Wind spd 4 8 8 9 4 4 4 4 4 8 11 12 6 4 4 4 4 4 6 5 2 Clouds B1 SC B1 SC SC B1 SC SC SC CL CL FW FW FW FW CL CL CL FW FW CL PoP 12hr 5 5 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Fri 08/28/26 Sat 08/29/26 Sun 08/30/26 Mon 08/31/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 57 83 63 84 68 89 70 88 Temp 63 58 80 78 66 64 79 80 71 69 84 84 74 70 84 82 Dewpt 57 56 61 63 60 60 66 66 63 63 70 71 67 66 70 70 PWind dir NW SW S S S S S S Wind char LT LT LT GN GN GN GN LT Avg clouds CL FW FW FW SC B1 B2 SC SC SC SC SC SC B1 B1 SC PoP 12hr 0 0 20 30 30 20 50 30 Rain shwrs S C S C S C C C Tstms S S S C S C C S $$ IAZ086-252100- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 527 AM CDT Tue Aug 25 2026 Date Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 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 84 64 82 Temp 63 71 79 82 82 73 71 70 68 77 82 83 81 72 68 66 64 74 80 82 79 Dewpt 60 63 68 70 72 70 69 69 68 71 69 68 68 66 65 63 62 66 65 63 65 RH 90 76 69 67 72 90 93 97100 82 65 61 65 81 90 90 93 76 60 53 62 Wind dir SE SE S S S S S SW W W NW NW NW NW NW NW NW N N N N Wind spd 5 8 5 6 2 3 4 4 5 6 10 12 6 4 4 4 4 4 6 6 3 Clouds B2 SC B1 SC B1 SC SC SC B1 FW CL CL CL CL CL CL FW FW FW FW FW PoP 12hr 5 10 5 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 87 Max heat 83 89 86 88 82 84 Date Fri 08/28/26 Sat 08/29/26 Sun 08/30/26 Mon 08/31/26 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 61 84 66 86 71 90 73 89 Temp 66 62 81 81 68 66 82 83 74 72 86 87 77 74 85 85 Dewpt 62 60 64 66 62 61 67 68 65 65 71 72 68 68 73 74 PWind dir NW S SE S S S S S Wind char LT LT LT GN GN GN GN GN Avg clouds FW FW CL FW FW B1 B2 B1 SC SC SC SC SC B1 B1 SC PoP 12hr 0 0 5 10 30 20 30 20 Rain shwrs C S C S Tstms S S C S $$