Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
136 FOUS53 KDMX 152157 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 457 PM CDT Sat Aug 15 2026 IAZ060-160900- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 457 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue 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 81 63 82 67 Temp 81 76 75 73 72 75 78 80 77 71 68 65 64 72 79 82 80 72 70 69 67 Dewpt 76 75 73 72 72 72 72 71 69 67 65 64 63 66 66 67 69 66 65 65 65 RH 85 97 94 97100 90 82 74 76 87 90 97 97 81 64 61 69 81 84 87 93 Wind dir NW NW W W NW N N NW N NW NW NW NW W W W S S S SW SW Wind spd 4 3 3 4 5 8 10 11 6 3 3 3 2 2 3 3 2 3 4 5 4 Clouds OV B2 B1 SC SC SC SC SC FW CL SC SC SC FW FW FW FW SC B1 B1 B2 PoP 12hr 60 10 0 0 5 QPF 12hr 0.35 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L C C S C Tstms C C S S S Heat index 87 Max heat 94 86 82 86 Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 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 66 78 60 77 61 79 63 80 Temp 81 80 70 67 75 74 65 62 75 74 66 62 77 76 67 64 78 77 Dewpt 72 72 69 66 68 67 64 61 65 67 64 62 69 70 66 63 70 71 PWind dir SW N N N S S S S NW Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 B1 B2 B2 B1 SC SC SC B1 SC SC SC B1 SC SC SC SC FW PoP 12hr 60 80 20 5 5 20 20 10 5 Rain shwrs C L D L S S S S Tstms S C C S $$ IAZ039-160900- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 457 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 69 79 60 80 64 Temp 79 74 73 72 71 74 77 78 76 69 66 63 62 70 77 80 77 70 68 66 65 Dewpt 75 73 72 72 70 71 70 68 67 65 63 61 60 64 65 65 67 66 65 65 65 RH 88 97 97100 97 90 79 71 74 87 90 93 93 81 67 60 71 87 90 97100 Wind dir W W W W NW NW NW NW NW NW NW NW NW NW W W SW S S SW SW Wind spd 3 2 3 4 6 11 12 13 10 6 4 4 3 2 4 5 3 3 5 5 4 Clouds B2 OV B2 B1 B1 B1 SC B1 FW CL FW FW SC FW CL CL FW SC B1 B2 B2 PoP 12hr 40 10 0 0 30 QPF 12hr 0.14 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C C S Tstms C C S S Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 81 62 75 57 76 59 77 60 78 Temp 78 75 68 63 73 72 62 58 73 72 64 60 74 73 65 61 76 75 Dewpt 71 69 67 63 65 63 60 57 62 63 62 60 67 66 64 61 67 67 PWind dir W NW N N SW S SW SW W Wind char LT LT GN LT LT LT LT LT LT Avg clouds B1 B1 B2 B2 B1 SC SC SC B1 SC SC SC SC SC SC SC SC FW PoP 12hr 60 80 20 5 10 20 30 20 10 Rain shwrs S L D C S S S C S S S Tstms S C C S $$ IAZ048-160900- Ames-Story IA 41.99N 93.62W Elev. 936 ft 457 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue 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 80 61 81 65 Temp 79 75 74 72 71 73 77 78 76 69 66 63 63 72 79 81 79 71 69 67 66 Dewpt 76 74 73 72 70 71 71 70 69 67 65 63 62 66 67 67 70 68 66 66 66 RH 91 97 97100 97 93 82 76 79 93 97100 97 81 67 63 74 90 90 97100 Wind dir W W NW NW NW N N N N NW NW NW NW W W SW S S S SW SW Wind spd 3 3 2 4 5 10 10 11 6 3 2 2 1 2 3 3 2 3 4 4 3 Clouds B2 B2 B2 B1 SC SC SC SC FW CL SC FW SC FW FW FW FW B1 B1 B1 B2 PoP 12hr 50 10 0 0 20 QPF 12hr 0.20 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C Tstms C C S S S Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 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 64 77 58 77 60 79 62 80 Temp 79 77 69 65 74 73 63 60 74 73 64 61 76 75 66 62 77 76 Dewpt 73 72 69 65 67 66 63 60 65 67 64 61 69 70 66 62 70 71 PWind dir W N N N S S SW S NW Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 B1 B2 B2 B1 B1 SC B1 B1 SC SC SC SC SC SC SC SC FW PoP 12hr 60 80 20 5 10 20 20 20 5 Rain shwrs C L D C S S S S S S Tstms S C C S $$ IAZ004-160900- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 457 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 64 77 56 80 62 Temp 76 72 70 67 64 69 74 77 75 64 61 58 57 71 77 79 77 68 66 64 63 Dewpt 73 70 68 64 62 65 65 64 65 62 59 57 56 64 64 66 68 66 65 64 63 RH 90 93 93 90 93 87 74 64 71 93 93 96 96 79 64 64 74 93 97100100 Wind dir W W NW NW NW N N N N NW W W W SW SW SW SW SW SW W W Wind spd 4 5 6 10 11 13 12 11 6 3 3 3 3 4 8 9 8 9 9 8 5 Clouds B2 B1 SC SC SC SC SC FW FW CL FW FW FW FW FW FW SC B1 B1 B2 B2 PoP 12hr 30 5 0 5 50 QPF 12hr 0 0 0 0 0.14 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C Tstms S C C S S Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 78 58 74 54 75 57 77 58 78 Temp 76 72 63 58 71 71 59 56 73 73 61 58 75 74 63 59 76 76 Dewpt 69 69 63 58 63 64 58 56 64 66 61 58 68 69 63 59 67 69 PWind dir NW N N SE S S SW SW W Wind char LT LT LT LT LT LT GN LT LT Avg clouds B1 B2 B2 B1 B1 SC SC SC B1 SC SC SC SC SC FW SC SC FW PoP 12hr 70 50 5 10 20 40 20 10 5 Rain shwrs C L C C S S C S Tstms C C S $$ IAZ035-160900- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 457 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue 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 79 58 81 64 Temp 78 74 72 71 68 70 75 77 76 67 63 60 60 70 78 80 78 70 68 66 65 Dewpt 75 73 71 70 66 68 69 68 68 65 62 60 60 66 67 68 70 67 66 65 65 RH 91 97 97 97 93 93 82 74 76 93 97100100 87 69 67 76 90 93 97100 Wind dir W W NW NW N N N N N N NW W W SW SW SW S S SW SW SW Wind spd 3 4 3 5 6 10 11 9 4 1 1 1 0 1 3 3 2 4 4 4 3 Clouds OV B2 B1 B1 FW SC SC FW CL CL FW SC B1 FW FW FW SC B2 B2 B2 B2 PoP 12hr 40 10 0 0 40 QPF 12hr 0.05 0 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C Tstms C S C C S Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 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 61 76 56 76 58 78 59 80 Temp 77 76 66 61 73 72 60 57 73 73 62 59 74 74 64 60 76 76 Dewpt 73 72 66 61 66 66 60 57 66 68 62 59 70 70 64 60 70 71 PWind dir SW N N E S S S S W Wind char LT LT LT LT LT LT LT LT LT Avg clouds B2 B1 B2 B1 B2 SC SC SC B1 SC SC SC B1 SC SC SC B1 FW PoP 12hr 70 70 20 5 30 40 20 10 5 Rain shwrs C L L C S C S C S S S Tstms S C C S $$ IAZ094-160900- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 457 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 81 63 81 65 Temp 82 77 75 73 72 76 79 80 77 71 68 65 63 73 78 81 79 72 69 67 66 Dewpt 77 75 74 73 71 73 73 72 70 68 67 65 63 66 66 66 68 66 65 64 64 RH 85 94 97100 97 90 82 77 79 90 97100100 79 67 60 69 81 87 90 93 Wind dir NW NW NW NW NW N N N N N N N N N W W S S S S SW Wind spd 4 3 3 4 5 8 9 11 8 4 3 3 2 2 2 2 1 2 3 4 4 Clouds B2 OV B2 B1 SC B1 B1 SC FW CL FW FW FW FW FW CL FW SC SC B1 B1 PoP 12hr 60 20 0 0 5 QPF 12hr 0.16 0.01 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S S S S S Tstms C C C C S S S S Heat index 90 Max heat 97 86 84 87 85 Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 84 67 79 61 78 62 80 63 81 Temp 81 81 72 67 77 75 66 63 76 75 66 62 77 76 67 64 78 78 Dewpt 71 72 70 67 69 69 66 63 65 67 64 62 68 70 66 63 68 70 PWind dir S NE NE NE E SE S E N Wind char LT LT GN LT LT LT LT LT LT Avg clouds B1 SC SC B2 B2 B1 SC B1 B1 SC SC SC B1 SC SC SC SC SC PoP 12hr 20 80 20 10 5 20 20 10 5 Rain shwrs S S L D S S S S Tstms S S C C S S $$ IAZ017-160900- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 457 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue 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 78 57 80 63 Temp 77 73 71 70 68 70 74 76 75 66 63 59 59 70 78 79 77 69 67 65 64 Dewpt 74 72 71 69 66 67 66 65 65 63 60 59 58 64 63 64 67 66 65 64 64 RH 90 97100 97 93 90 76 69 71 90 90100 96 81 60 60 71 90 93 97100 Wind dir SW W W NW NW N NW NW NW NW NW NW W W W SW S S SW SW W Wind spd 2 3 4 6 9 12 13 12 6 4 3 2 1 2 5 5 3 5 6 6 5 Clouds OV B1 B2 SC SC SC SC FW FW FW FW SC FW FW CL FW SC B1 B2 B2 B2 PoP 12hr 40 5 0 0 50 QPF 12hr 0.21 0 0 0 0.10 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C C Tstms C S C C S Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 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 58 74 54 76 57 77 58 79 Temp 78 73 64 60 72 71 59 56 73 72 61 60 74 74 63 59 76 75 Dewpt 69 68 64 59 63 62 57 56 62 64 61 60 67 67 63 59 67 67 PWind dir W NW N NW SW S SW SW W Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 B1 B2 B1 B1 SC SC SC B1 SC SC SC SC SC SC FW SC FW PoP 12hr 70 70 5 5 10 40 30 20 5 Rain shwrs C L L C C C S S S Tstms S C C $$ IAZ049-160900- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 457 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 68 80 59 81 63 Temp 79 74 73 72 71 73 76 78 75 68 65 62 61 70 78 80 77 68 67 65 64 Dewpt 75 73 72 71 70 71 70 69 68 65 63 61 60 65 65 66 68 65 64 64 64 RH 88 97 97 97 97 93 82 74 79 90 93 97 97 84 64 62 74 90 90 97100 Wind dir NW NW NW NW NW N N NW NW NW NW NW NW NW W W SW S S SW SW Wind spd 4 3 3 3 5 9 10 11 6 4 4 3 2 1 3 3 2 3 4 4 4 Clouds B2 OV OV B1 SC B1 B1 FW FW CL FW FW FW FW FW FW FW SC B1 B2 B2 PoP 12hr 50 10 0 0 20 QPF 12hr 0.22 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S S S Tstms C C S S S S Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 82 62 77 56 77 58 78 59 79 Temp 78 77 67 63 74 72 61 58 74 72 63 59 74 73 64 60 76 75 Dewpt 71 70 67 63 66 64 60 58 63 64 61 59 67 67 64 60 68 68 PWind dir W N N N S S S SW NW Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 B1 B2 B2 B1 B1 SC SC B1 SC SC SC B1 SC SC SC B1 FW PoP 12hr 60 80 20 5 10 20 20 20 10 Rain shwrs S L D C S S S S S S Tstms S C C $$ IAZ086-160900- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 457 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue 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 71 84 63 83 65 Temp 82 76 75 74 74 77 81 83 79 71 68 65 65 73 79 82 80 71 67 66 67 Dewpt 77 74 74 74 73 75 75 74 71 69 67 65 64 67 66 66 69 66 65 64 65 RH 85 94 97100 97 94 82 74 77 93 97100 97 81 64 58 69 84 93 93 93 Wind dir NW NW W W NW NW NW NW NW NW NW NW NW NW NW NW SW S S S SW Wind spd 5 4 3 4 4 6 9 11 9 5 4 5 3 3 3 3 0 2 3 4 4 Clouds B2 B2 OV B2 B1 B1 SC SC FW CL CL FW FW FW FW CL FW FW SC B1 B1 PoP 12hr 60 20 0 0 5 QPF 12hr 0.24 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L C C C S S S Tstms C C C C S S S Heat index 90 87 89 Max heat 101 87 90 82 86 Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 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 67 80 60 79 61 80 63 82 Temp 82 81 71 68 77 76 66 62 76 76 65 62 77 77 67 64 78 78 Dewpt 72 73 70 67 70 69 65 62 65 67 64 62 68 70 66 63 69 71 PWind dir SW N N NE E SE S S NW Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 SC B1 B2 B1 B1 SC B1 B1 SC SC SC B1 SC SC SC SC FW PoP 12hr 20 80 30 5 5 20 20 20 5 Rain shwrs S D D C S S S Tstms S C S S S $$