Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
765 FOUS53 KDMX 091327 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 827 AM CDT Sun Aug 9 2026 IAZ060-092100- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 827 AM CDT Sun Aug 9 2026 Date Sun 08/09/26 Mon 08/10/26 Tue 08/11/26 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 72 88 72 90 Temp 80 87 89 88 78 75 73 72 78 85 88 86 78 76 74 72 80 87 90 87 Dewpt 71 72 73 75 74 72 70 71 73 74 75 76 74 72 70 70 73 75 76 77 RH 74 61 59 66 88 90 90 97 85 70 66 72 88 87 87 93 79 68 64 72 Wind dir S S S N NE E E E SE S S S SE SE S S SW W E NE Wind spd 10 9 6 4 5 5 5 5 5 8 8 5 4 4 4 5 5 6 6 5 Clouds SC SC B1 B1 B1 B1 B1 B1 B1 B2 B1 B1 SC SC B1 B1 SC SC SC SC PoP 12hr 20 20 10 20 20 QPF 12hr 0.01 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S S S Tstms S S S S S S S Heat index 93 97 98 93 98 97 85 96102 99 Max heat 93 100 96 95 100 96 98 105 Date Wed 08/12/26 Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 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 67 76 63 73 63 74 Temp 75 71 83 82 72 68 73 72 67 65 71 70 66 65 72 71 Dewpt 73 71 75 74 70 67 70 68 66 64 68 68 66 65 70 70 PWind dir NE NE NE E E E E E Wind char LT LT LT LT LT GN GN GN Avg clouds SC B1 B1 SC SC B2 OV OV B1 B2 B1 B1 B2 B2 B2 B2 PoP 12hr 50 20 30 50 40 50 50 40 Rain shwrs S C S C C C C C C C C C C S Tstms S C S C S S C C S S S S $$ IAZ039-092100- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 827 AM CDT Sun Aug 9 2026 Date Sun 08/09/26 Mon 08/10/26 Tue 08/11/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 68 84 68 84 Temp 74 78 84 82 74 71 69 69 75 80 83 81 74 72 70 69 76 81 84 81 Dewpt 69 70 74 75 72 70 68 68 72 74 74 74 72 71 70 69 73 75 75 74 RH 84 76 72 79 93 97 97 97 90 82 74 79 93 97100100 90 82 74 79 Wind dir E E SE NE NE NE E NE E SE SE SE SE E SE E E NE NE NE Wind spd 8 10 6 5 4 3 4 5 6 8 6 5 4 3 3 4 5 5 6 5 Clouds B2 B1 SC SC B1 B1 B1 B1 B1 B1 B1 B1 SC B1 B1 B2 B1 SC SC SC PoP 12hr 70 10 30 20 20 QPF 12hr 0.15 0.01 0.02 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S S S S S S Tstms C S S S S S S S Obvis PF Heat index 91 89 85 90 86 87 92 87 Max heat 93 87 87 92 85 89 94 Date Wed 08/12/26 Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 68 82 65 75 60 72 60 72 Temp 71 68 79 78 68 65 73 72 64 62 71 69 64 62 70 70 Dewpt 71 68 73 70 67 63 66 65 62 60 64 64 63 61 66 66 PWind dir NE NE NE NE NE E E E Wind char LT LT LT LT LT GN GN GN Avg clouds SC B1 B2 B1 B1 B1 B2 B2 B1 B1 B1 B1 B1 B2 B2 B1 PoP 12hr 30 20 10 20 20 40 50 40 Rain shwrs C S S S S S S C C C C C Tstms C S S S S S S $$ IAZ048-092100- Ames-Story IA 41.99N 93.62W Elev. 936 ft 827 AM CDT Sun Aug 9 2026 Date Sun 08/09/26 Mon 08/10/26 Tue 08/11/26 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 89 69 86 70 87 Temp 79 84 88 86 76 73 71 70 77 83 86 84 75 73 72 71 78 84 87 84 Dewpt 70 72 74 75 74 72 70 70 73 76 76 76 75 73 71 70 74 76 78 77 RH 74 67 63 70 94 97 97100 87 80 72 77100100 97 97 88 77 75 80 Wind dir SE SE SE NE NE E E NE E SE SE S SE SE SE SE S N NE NE Wind spd 10 9 4 3 5 4 5 5 6 8 6 4 4 3 3 4 5 5 5 4 Clouds SC SC B1 B1 B1 B1 B1 B1 B1 B2 B1 B1 SC SC B1 B1 SC SC SC SC PoP 12hr 30 10 10 20 20 QPF 12hr 0.06 0.01 0 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S Tstms S S S S Heat index 90 97 95 90 96 94 94100 94 Max heat 91 99 92 92 99 92 96 102 Date Wed 08/12/26 Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 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 83 65 75 61 73 61 74 Temp 73 69 81 80 70 67 74 71 65 63 71 69 65 63 71 71 Dewpt 73 69 75 73 69 66 69 67 65 63 67 67 65 63 69 68 PWind dir NE NE NE NE E E E E Wind char LT LT LT LT LT GN LT GN Avg clouds SC B1 B1 SC SC B1 B2 B2 B1 B1 B1 B1 B1 B2 B2 B2 PoP 12hr 30 30 20 40 30 50 50 40 Rain shwrs C C S C C S C C C C C C S Tstms C C S S S S C S S S $$ IAZ004-092100- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 827 AM CDT Sun Aug 9 2026 Date Sun 08/09/26 Mon 08/10/26 Tue 08/11/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 64 82 65 83 Temp 72 77 80 80 70 67 65 64 72 78 81 80 71 68 67 65 73 80 83 81 Dewpt 68 69 71 70 69 66 64 64 68 70 71 72 70 68 66 65 69 71 72 73 RH 87 76 74 72 97 97 97100 87 76 72 77 97100 97100 87 74 70 77 Wind dir SE SE NE NE NE NE NE E E E E E E E E NE NE NE NE NE Wind spd 9 6 6 6 4 4 4 5 8 8 8 6 6 4 5 4 6 8 5 5 Clouds B1 B1 B1 B1 B1 B1 B2 OV B1 B1 B1 B1 SC B1 B2 B2 B1 SC SC SC PoP 12hr 40 10 10 20 5 QPF 12hr 0.07 0 0 0.05 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S Tstms S S Obvis PF Heat index 88 86 Max heat 86 88 83 89 Date Wed 08/12/26 Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 65 81 60 75 56 74 57 73 Temp 68 65 78 78 64 60 73 73 60 57 71 70 60 58 70 70 Dewpt 68 65 68 68 62 59 62 61 58 56 61 62 60 57 63 64 PWind dir NE NE NE NE E E SE SE Wind char LT LT LT LT LT GN GN GN Avg clouds SC B1 B1 B1 SC B1 B2 B1 SC SC B1 B1 B1 B1 B2 B1 PoP 12hr 20 10 10 10 10 30 40 30 Rain shwrs S S C C C C S Tstms S S S S $$ IAZ035-092100- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 827 AM CDT Sun Aug 9 2026 Date Sun 08/09/26 Mon 08/10/26 Tue 08/11/26 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 67 86 68 88 Temp 75 81 86 84 72 70 68 67 76 82 85 84 74 71 70 68 77 85 87 85 Dewpt 69 71 72 73 72 70 68 67 71 73 74 75 73 71 69 68 72 74 74 75 RH 82 72 63 70100100100100 85 74 70 74 97100 97100 85 70 65 72 Wind dir SE SE E NE NE E E NE E SE SE SE E E E E E NE NE E Wind spd 9 8 4 5 4 4 4 5 8 8 6 4 4 3 3 4 5 5 4 4 Clouds SC SC B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 SC B1 B2 B2 B1 B1 SC SC PoP 12hr 30 10 5 20 5 QPF 12hr 0.07 0.03 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Tstms S S Heat index 92 90 88 92 92 92 96 94 Max heat 86 94 87 88 95 89 93 98 Date Wed 08/12/26 Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 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 85 64 77 60 74 60 74 Temp 71 67 82 81 67 64 75 73 62 61 72 70 62 62 72 71 Dewpt 71 67 72 70 66 63 66 65 62 60 65 65 62 61 67 67 PWind dir NE NE NE NE E E E E Wind char LT LT LT LT LT LT LT LT Avg clouds SC B2 B1 B1 B1 B2 OV B2 B1 B1 B1 B1 B2 B2 OV B1 PoP 12hr 30 10 10 30 20 40 50 40 Rain shwrs C C C S S C C C C C Tstms C S S S S S $$ IAZ094-092100- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 827 AM CDT Sun Aug 9 2026 Date Sun 08/09/26 Mon 08/10/26 Tue 08/11/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 72 89 74 91 Temp 81 87 90 89 80 77 74 72 80 85 88 87 80 78 76 74 82 88 91 88 Dewpt 71 73 73 76 73 72 69 69 72 73 73 74 72 70 69 68 72 73 74 75 RH 72 63 58 66 79 85 84 90 77 67 61 65 77 76 79 82 72 61 58 66 Wind dir S S SW SW S SW S S S S SW SW S S S S SW SW SW E Wind spd 13 13 11 4 4 5 6 6 8 9 10 6 5 6 8 6 9 9 9 8 Clouds SC SC B1 B1 B1 SC B1 B1 B1 B1 SC B1 SC SC B1 B1 SC SC FW SC PoP 12hr 10 20 10 10 20 QPF 12hr 0 0.01 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C Tstms S S S S C Heat index 95 98 99 92 96 95 87 96101 98 Max heat 95 102 96 93 98 94 98 102 Date Wed 08/12/26 Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 73 87 68 76 64 75 64 76 Temp 77 73 84 83 73 69 74 72 68 66 73 72 68 66 74 73 Dewpt 72 70 74 73 71 69 71 69 68 66 70 70 68 66 71 71 PWind dir SE E NE E E E E E Wind char LT LT LT LT GN GN GN GN Avg clouds SC B1 B1 SC B1 B2 B2 OV B2 B2 B2 B2 B1 B2 B2 B2 PoP 12hr 40 30 60 70 60 60 60 50 Rain shwrs C C C S L L L C L L C L L C S Tstms C C C S C C C C C S S C C S $$ IAZ017-092100- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 827 AM CDT Sun Aug 9 2026 Date Sun 08/09/26 Mon 08/10/26 Tue 08/11/26 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 64 82 65 82 Temp 70 76 82 81 72 68 67 65 73 79 81 80 72 69 67 66 73 79 82 80 Dewpt 67 70 72 73 70 68 66 65 70 72 72 73 71 69 67 66 71 73 73 74 RH 90 82 72 77 93100 97100 90 79 74 79 97100100100 93 82 74 82 Wind dir SE E E E NE NE NE NE E E E E E E NE E NE NE NE NE Wind spd 10 8 4 4 3 3 4 3 6 6 5 5 4 3 3 4 5 5 4 4 Clouds B2 B1 SC B1 B1 B1 B2 B2 B1 B1 B1 B1 SC B1 B2 B1 B1 B1 SC SC PoP 12hr 60 10 10 30 10 QPF 12hr 0.32 0.01 0 0.04 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S C C Tstms S C S Obvis PF PF Heat index 86 88 85 Max heat 88 87 84 88 Date Wed 08/12/26 Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 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 65 81 61 75 58 73 57 72 Temp 69 66 78 78 66 62 73 72 61 59 71 69 61 59 70 69 Dewpt 69 66 71 69 64 61 64 62 59 57 62 62 61 59 65 64 PWind dir NE NE NE NE E E SE SE Wind char LT LT LT LT LT LT LT GN Avg clouds SC B1 B1 B1 SC B2 B2 B1 SC SC SC B1 B1 B2 B2 B1 PoP 12hr 20 20 5 10 10 30 50 40 Rain shwrs S S S C C C C C Tstms S S S S $$ IAZ049-092100- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 827 AM CDT Sun Aug 9 2026 Date Sun 08/09/26 Mon 08/10/26 Tue 08/11/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 68 86 68 87 Temp 76 81 86 83 74 71 70 68 76 81 84 82 73 72 70 69 77 83 86 82 Dewpt 71 71 74 74 73 71 69 68 72 74 75 75 73 71 70 69 73 75 76 75 RH 85 72 68 74 97100 97100 87 79 74 79100 97100100 87 77 72 79 Wind dir SE SE S E NE E E E E SE SE SE SE SE SE SE S N NE NE Wind spd 8 12 6 4 5 4 5 5 6 8 6 4 4 3 3 4 5 4 4 4 Clouds B1 SC SC B1 B1 B1 B1 B1 B2 B1 B1 B1 SC SC B2 B1 B1 SC SC SC PoP 12hr 40 10 20 20 20 QPF 12hr 0.09 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S S S Tstms S S S S S S Heat index 94 91 87 92 89 90 96 89 Max heat 86 95 89 89 94 85 93 97 Date Wed 08/12/26 Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 67 83 64 76 60 73 60 74 Temp 71 68 80 78 68 66 73 71 64 61 71 69 64 61 71 70 Dewpt 71 68 73 72 67 64 67 66 63 61 65 64 63 61 67 66 PWind dir NE NE NE NE E E SE E Wind char LT LT LT LT LT LT LT LT Avg clouds SC B1 B1 SC B1 B1 B2 B2 B1 B1 B1 B1 B1 B2 B2 B2 PoP 12hr 40 30 20 30 20 40 50 40 Rain shwrs C C S C C S S C C C C C S Tstms C C S S S S S S S $$ IAZ086-092100- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 827 AM CDT Sun Aug 9 2026 Date Sun 08/09/26 Mon 08/10/26 Tue 08/11/26 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 91 72 90 73 91 Temp 80 86 90 88 78 75 73 72 79 85 88 87 78 76 75 73 80 87 90 87 Dewpt 72 73 75 76 75 73 71 71 74 75 76 76 75 73 71 71 74 76 76 77 RH 77 65 62 68 91 94 93 97 85 72 68 70 91 90 87 93 82 70 64 72 Wind dir S S S S S SE SE SE S S SW SW S S S SW SW W W NW Wind spd 10 11 11 6 5 5 5 5 5 6 9 5 5 4 5 5 6 6 6 6 Wind gust 21 Clouds B1 SC B1 B1 B1 B1 SC B1 SC B1 SC B1 SC SC B1 B2 SC SC SC SC PoP 12hr 40 30 20 20 30 QPF 12hr 0.02 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S S S S S C C S Tstms S S S S S S S C C S Heat index 93100 99 94 99 98 85 97102 99 Max heat 95 102 94 95 102 94 99 103 Date Wed 08/12/26 Thu 08/13/26 Fri 08/14/26 Sat 08/15/26 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 72 87 68 79 63 76 63 77 Temp 75 72 84 83 72 69 76 75 67 65 74 73 67 65 75 74 Dewpt 74 72 76 75 72 69 71 70 67 65 69 69 67 65 71 70 PWind dir NE NE NE E E E SE E Wind char LT LT LT LT LT GN GN GN Avg clouds SC B1 B1 SC SC B1 B2 B2 B2 B1 B2 B1 B1 B1 B2 B1 PoP 12hr 50 30 20 60 50 50 60 50 Rain shwrs S C C S L C C C C C C L C C Tstms S C C S S C C C S S C S S $$