Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
536 FOUS53 KDMX 110752 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 252 AM CDT Tue Aug 11 2026 IAZ060-120900- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 252 AM CDT Tue Aug 11 2026 Date 08/10/26 Tue 08/11/26 Wed 08/12/26 Thu 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 72 92 71 89 70 Temp 75 74 81 88 91 88 79 75 73 72 79 85 88 87 78 74 72 70 Dewpt 73 69 72 73 73 76 75 73 72 71 73 74 74 76 75 73 71 70 RH 94 84 74 61 56 68 88 94 97 97 82 70 63 70 91 97 97100 Wind dir S S W SW N NE E E E NE E E NE NE NE E NE E Wind spd 5 6 8 6 6 5 5 4 4 5 6 8 8 8 8 5 5 5 Clouds B2 B2 B1 SC SC SC SC SC B1 B1 B1 SC SC B1 B1 B2 B2 OV PoP 12hr 30 30 30 20 60 QPF 12hr 0.01 0 0.01 0.01 0.47 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S C C L L D Tstms C S S S C C C S Heat index 95101 99 93 97 97 Max heat 98 103 96 95 101 96 Date 08/13 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 Mon 08/17/26 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 67 80 68 86 69 81 65 77 Temp 78 78 70 67 77 78 72 69 82 83 73 70 78 78 68 65 75 75 Dewpt 73 73 70 67 72 74 71 69 75 77 72 70 73 73 68 65 69 70 PWind dir E E E SE S NW N N NE Wind char LT GN GN GN GN LT LT LT LT Avg clouds OV B2 B2 OV OV B2 B2 B2 B2 B1 B1 B2 B2 B1 B1 SC B1 B1 PoP 12hr 80 80 70 60 20 50 20 20 10 Rain shwrs D C C D L C C L S C C S S S Tstms S S C C C S C C S C C S $$ IAZ039-120900- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 252 AM CDT Tue Aug 11 2026 Date 08/10/26 Tue 08/11/26 Wed 08/12/26 Thu CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 85 68 84 67 Temp 74 70 75 82 83 81 74 71 69 69 75 81 83 80 73 71 69 68 Dewpt 73 70 72 74 74 74 72 71 69 69 72 73 73 73 72 70 69 68 RH 97100 90 77 74 79 93100100100 90 77 72 79 97 97100100 Wind dir E E SW NW N NE NE E E E E SE NE NE NE NE NE NE Wind spd 4 5 6 5 5 5 3 2 2 3 5 5 5 4 4 3 3 4 Clouds B1 OV B1 SC SC SC SC B1 B1 B2 B1 SC SC SC B1 B1 B2 B2 PoP 12hr 60 60 20 20 50 QPF 12hr 0.32 0.25 0.02 0 0.15 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C S S C C C C L Tstms C L C S S S S S S S Heat index 87 91 87 86 90 85 Max heat 89 93 85 87 91 Date 08/13 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 Mon 08/17/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 79 64 76 64 80 66 77 62 76 Temp 76 74 68 64 73 72 67 64 76 76 70 67 75 73 66 62 74 73 Dewpt 71 69 66 64 67 67 66 64 72 72 70 67 70 68 66 62 67 67 PWind dir E E E SE S NW NW N N Wind char LT LT GN GN GN LT LT LT LT Avg clouds OV B2 B1 B2 B2 B2 B2 B2 B2 B1 B2 B2 B2 B1 SC SC B1 SC PoP 12hr 60 20 40 70 50 60 20 10 10 Rain shwrs L C S C C L L C C L C S S Tstms S S S S C C C C C S $$ IAZ048-120900- Ames-Story IA 41.99N 93.62W Elev. 936 ft 252 AM CDT Tue Aug 11 2026 Date 08/10/26 Tue 08/11/26 Wed 08/12/26 Thu 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 70 90 69 87 68 Temp 74 72 79 86 88 85 76 73 71 70 78 83 86 84 75 72 70 69 Dewpt 73 70 72 75 76 77 75 73 71 70 73 75 76 76 75 72 70 69 RH 97 93 79 70 68 77 97100100100 85 77 72 77100100100100 Wind dir E SE E SW N NE E E E E E E NE NE NE E E E Wind spd 4 4 6 5 5 4 4 3 4 4 6 6 6 6 6 4 4 3 Clouds B2 B2 B1 SC SC SC SC B1 B2 B2 B1 SC SC SC SC B2 B2 OV PoP 12hr 40 40 30 20 60 QPF 12hr 0.04 0.02 0.04 0 0.59 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C C L L L Tstms C C S S S C C S S Heat index 95 99 95 91 96 92 Max heat 96 102 94 92 99 90 Date 08/13 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 Mon 08/17/26 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 80 66 78 67 84 67 80 63 77 Temp 77 76 69 66 75 75 70 67 80 80 71 69 77 76 67 64 75 74 Dewpt 72 72 69 66 71 72 70 67 75 76 71 69 72 72 67 64 68 70 PWind dir E E E SE S W N N NE Wind char LT LT GN GN GN LT LT LT LT Avg clouds OV B2 B2 OV OV B2 B2 B2 B2 B1 B1 B2 B2 B1 B1 SC B1 B1 PoP 12hr 70 70 70 60 30 50 20 10 10 Rain shwrs L C C L L C L L C C C S S Tstms S S S C C S C C S C C S $$ IAZ004-120900- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 252 AM CDT Tue Aug 11 2026 Date 08/10/26 Tue 08/11/26 Wed 08/12/26 Thu CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 67 82 65 82 65 Temp 70 67 73 78 81 80 71 68 67 65 74 79 81 80 71 69 67 65 Dewpt 70 67 70 71 72 74 71 68 67 65 70 70 71 72 70 67 65 64 RH 100100 90 79 74 82100100100100 87 74 72 77 97 93 93 97 Wind dir E NW E N NE NE E E S E NE NE NE NE NE NE NE NE Wind spd 5 6 6 6 6 5 3 3 3 4 4 5 6 6 5 5 5 6 Clouds OV B2 B1 B1 SC SC SC B1 OV B2 B1 B2 B1 B1 B1 B1 OV OV PoP 12hr 70 60 20 10 40 QPF 12hr 0.78 0.02 0.05 0 0.10 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L S C C C Tstms C L S S Heat index 86 85 Max heat 89 87 Date 08/13 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 Mon 08/17/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 77 61 74 62 75 61 74 57 74 Temp 74 74 64 61 71 70 64 63 71 73 66 62 71 71 60 58 71 72 Dewpt 68 68 62 59 66 69 64 63 71 73 66 62 67 67 60 58 65 67 PWind dir E E E SE S N N N S Wind char GN GN GN GN GN LT LT LT LT Avg clouds OV B2 B1 B1 B2 B2 B2 B2 OV B2 B1 B1 B1 B1 SC SC B1 SC PoP 12hr 40 10 60 70 50 50 20 10 20 Rain shwrs C C L C L C C C C S S Tstms S S C C C S C S $$ IAZ035-120900- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 252 AM CDT Tue Aug 11 2026 Date 08/10/26 Tue 08/11/26 Wed 08/12/26 Thu 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 69 88 68 87 67 Temp 74 69 78 84 87 85 74 71 69 69 77 83 85 83 73 71 69 67 Dewpt 73 69 72 74 74 75 73 71 69 69 72 73 73 74 72 70 68 67 RH 97100 82 72 65 72 97100100100 85 72 67 74 97 97 97100 Wind dir E E SE NE NE NE E E E SE E E E E NE E NE NE Wind spd 4 4 5 4 5 4 3 2 3 3 5 5 5 5 4 3 3 3 Clouds OV B2 B2 B1 B1 SC SC B1 B2 B2 B1 B1 SC SC B1 B1 OV OV PoP 12hr 60 50 30 20 60 QPF 12hr 0.26 0.01 0.04 0 0.32 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C S C C L L L Tstms C C S S C S S S Heat index 91 94 93 88 91 90 Max heat 91 96 89 90 94 86 Date 08/13 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 Mon 08/17/26 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 80 64 77 64 81 64 78 60 77 Temp 77 76 66 64 74 73 66 65 76 78 68 65 74 74 63 61 73 73 Dewpt 71 70 66 64 70 71 66 65 74 75 68 65 71 70 63 61 67 69 PWind dir E E E SE S NW N N E Wind char LT LT GN GN LT LT LT LT LT Avg clouds OV B2 B1 B2 OV B2 OV B2 OV B2 B2 B2 B2 B1 B1 SC B1 SC PoP 12hr 70 50 70 70 50 50 20 10 10 Rain shwrs L S C L L L L C C C C S Tstms S S C S C C C S C C $$ IAZ094-120900- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 252 AM CDT Tue Aug 11 2026 Date 08/10/26 Tue 08/11/26 Wed 08/12/26 Thu CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 74 93 73 92 70 Temp 75 76 82 89 91 91 81 77 75 73 82 88 91 89 79 75 72 70 Dewpt 71 67 70 71 71 72 73 72 71 70 72 72 72 73 74 73 72 70 RH 87 74 67 56 52 54 77 85 87 90 72 59 54 59 85 94100100 Wind dir S SW SW SW SW SW E E SE SE SE S S NE NE NE NE NE Wind spd 6 9 10 10 10 4 4 5 5 5 6 8 8 6 8 6 6 6 Wind gust 17 Clouds B1 B2 B1 SC SC SC SC SC SC B1 B1 B1 SC SC B1 B2 OV OV PoP 12hr 10 10 20 20 60 QPF 12hr 0 0 0 0 0.21 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S L L L Tstms S S S C C C Heat index 94 98 99 95 99 97 Max heat 96 101 97 97 101 95 Date 08/13 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 Mon 08/17/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 85 68 85 71 89 70 83 65 79 Temp 82 80 71 69 81 83 74 71 86 86 75 71 81 79 70 67 77 77 Dewpt 72 72 71 69 73 73 72 69 72 74 72 70 73 72 70 67 69 69 PWind dir NE E SE SE SW W N NE NE Wind char GN GN GN GN GN LT LT LT LT Avg clouds OV B2 B2 OV B2 B1 B1 B2 B2 SC SC B1 B2 B1 B1 B1 B1 B1 PoP 12hr 70 80 40 50 20 40 30 30 20 Rain shwrs L C L D C C C S C C S C C C S Tstms C C C C C C C S C C S S S S $$ IAZ017-120900- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 252 AM CDT Tue Aug 11 2026 Date 08/10/26 Tue 08/11/26 Wed 08/12/26 Thu 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 83 65 82 65 Temp 72 69 73 79 81 81 72 70 67 67 74 79 81 80 72 69 67 66 Dewpt 71 69 71 73 72 74 72 70 67 67 71 72 71 73 71 69 67 66 RH 97100 93 82 74 79100100100100 90 79 72 79 97100100100 Wind dir E E NE NW N NE E E E E NE E E NE NE NE NE NE Wind spd 4 5 5 4 4 3 2 2 2 2 4 4 3 3 2 2 3 3 Clouds B2 OV B1 B1 B1 SC SC B1 B2 OV B1 B2 SC SC SC B1 B2 OV PoP 12hr 60 60 20 20 30 QPF 12hr 0.55 0.38 0.04 0.04 0.10 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L S S S C C C Tstms C L S S S S S Heat index 86 Max heat 87 87 Date 08/13 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 Mon 08/17/26 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 61 74 61 77 62 75 59 75 Temp 75 74 65 62 73 71 65 62 73 74 67 64 73 72 63 60 73 72 Dewpt 69 68 63 61 66 67 65 62 70 72 67 64 68 68 63 60 66 67 PWind dir E E E SE S N NW N NW Wind char LT LT GN GN GN LT LT LT LT Avg clouds OV B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 SC SC SC SC PoP 12hr 40 10 50 80 60 60 20 10 10 Rain shwrs C S S C L D L C L C S Tstms S S S C C S C S $$ IAZ049-120900- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 252 AM CDT Tue Aug 11 2026 Date 08/10/26 Tue 08/11/26 Wed 08/12/26 Thu CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 69 88 68 86 67 Temp 74 71 77 84 87 82 73 71 70 68 76 82 85 81 73 71 69 68 Dewpt 72 69 72 74 75 74 72 71 70 68 72 74 75 74 72 70 69 68 RH 93 93 85 72 68 77 97100100100 87 77 72 79 97 97100100 Wind dir SE E NW SW N NE NE E E E E E E NE NE NE NE E Wind spd 4 4 5 4 4 4 3 3 3 3 5 5 5 4 4 3 4 3 Clouds B2 B2 B1 SC SC SC SC SC B2 B2 B1 SC SC SC SC B1 B2 B2 PoP 12hr 50 50 30 20 60 QPF 12hr 0.06 0.03 0.04 0.04 0.38 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S S C C L L L Tstms C C S S S S S C S S Heat index 91 96 88 88 93 86 Max heat 94 99 86 89 94 85 Date 08/13 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 Mon 08/17/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 80 64 78 65 83 66 79 61 77 Temp 76 74 67 65 74 73 68 65 78 78 70 68 76 74 65 62 74 72 Dewpt 71 70 67 65 68 69 68 65 72 74 70 68 71 70 65 62 67 68 PWind dir E E E SE S SW NW N NE Wind char LT LT GN GN GN LT LT LT LT Avg clouds OV B2 B2 B2 OV B2 B2 B2 B2 B1 B1 B1 B2 B1 B1 SC B1 SC PoP 12hr 70 60 60 70 30 60 20 10 10 Rain shwrs L C C L L C L L C S L L S Tstms S S S C S S C C S S C S S $$ IAZ086-120900- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 252 AM CDT Tue Aug 11 2026 Date 08/10/26 Tue 08/11/26 Wed 08/12/26 Thu 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 73 93 72 91 70 Temp 75 74 81 87 91 88 78 75 73 73 79 86 89 87 77 74 72 71 Dewpt 72 70 73 73 73 75 75 74 73 72 74 75 75 76 76 74 72 71 RH 90 87 77 63 56 66 91 97100 97 85 70 64 70 97100100100 Wind dir S S SW SW W N NE E E SE SE SE SE NE NE NE NE E Wind spd 5 6 9 9 8 6 5 4 4 5 5 5 6 8 6 5 5 5 Clouds SC B2 B1 SC SC SC SC B1 B2 B2 B1 SC B1 SC SC B1 B2 OV PoP 12hr 10 20 20 30 60 QPF 12hr 0 0 0 0.07 0.34 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C L L D Tstms S S S S S C C C Heat index 94101 98 95100 98 Max heat 97 103 98 96 102 96 Date 08/13 Fri 08/14/26 Sat 08/15/26 Sun 08/16/26 Mon 08/17/26 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 84 67 82 69 89 70 84 65 79 Temp 80 79 71 68 79 80 72 69 84 85 74 71 81 80 70 66 76 76 Dewpt 74 74 71 68 72 74 72 69 75 77 73 71 74 74 70 66 70 71 PWind dir NE E E SE S SW NW N N Wind char LT GN GN GN GN LT LT LT LT Avg clouds B2 B2 B2 OV B2 B2 B2 B2 B2 SC SC B1 B2 B1 B1 SC B1 SC PoP 12hr 80 80 70 50 30 50 20 20 20 Rain shwrs D L L D L S C C C C C S S S S S Tstms C S C C C S C C S C C S S S S $$