Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
721 FOUS53 KDMX 181930 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 230 PM CDT Mon Aug 18 2025 IAZ060-190900- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 230 PM CDT Mon Aug 18 2025 Date 08/18/25 Tue 08/19/25 Wed 08/20/25 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 87 69 85 64 Temp 88 84 79 77 74 72 79 85 87 85 78 74 71 70 77 82 84 81 74 69 66 65 Dewpt 74 74 73 74 72 71 73 73 72 72 72 71 69 69 69 69 68 67 67 66 64 64 RH 63 72 82 90 93 97 82 67 61 65 82 90 93 97 76 65 59 63 79 90 93 97 Wind dir W NW NW NW NW NW N N N N NE NE NE N NE NE NE NE NE E E E Wind spd 6 8 4 4 3 3 4 6 8 6 4 4 3 4 5 8 8 6 4 3 3 2 Clouds B1 SC SC SC SC B1 B1 SC SC FW FW FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 20 5 10 5 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Tstms S S Heat index 97 91 91 94 91 Max heat 98 88 93 94 89 87 89 83 Date 08/21 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 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 62 86 62 79 57 76 53 76 Temp 79 79 67 64 83 82 68 63 77 76 62 57 71 71 58 53 71 71 Dewpt 64 64 64 62 66 68 65 60 58 57 56 53 52 52 53 50 51 52 PWind dir E SE W N NW N NW N N Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW SC SC SC FW FW CL FW FW FW FW FW FW SC SC PoP 12hr 0 0 10 20 5 5 5 10 10 Rain shwrs S S Tstms S S $$ IAZ039-190900- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 230 PM CDT Mon Aug 18 2025 Date 08/18/25 Tue 08/19/25 Wed 08/20/25 Thu CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 69 83 65 81 60 Temp 82 81 75 72 70 70 75 81 82 81 74 70 68 67 75 79 80 77 70 66 63 62 Dewpt 75 75 73 71 70 70 73 72 71 72 71 69 67 67 69 68 67 66 66 64 62 61 RH 79 82 94 97100100 94 74 69 74 90 97 97100 82 69 65 69 87 93 97 97 Wind dir SW NW NW NW NW N N N N N N N N N NE NE NE NE NE E E E Wind spd 6 5 3 3 3 4 5 8 8 6 4 4 3 4 5 8 8 5 4 2 2 2 Clouds B1 SC SC SC B1 B2 B2 B1 SC SC FW FW FW SC FW FW FW FW FW FW FW FW PoP 12hr 20 5 5 0 0 QPF 12hr 0.06 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Tstms S S Obvis PF PF PF Heat index 89 87 87 Max heat 90 85 88 83 84 Date 08/21 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 79 60 81 58 75 52 72 49 73 Temp 76 76 64 62 79 76 65 60 74 71 59 54 68 66 54 51 68 66 Dewpt 64 64 61 60 68 67 63 58 58 57 53 51 53 52 51 48 52 53 PWind dir E S W NW NW NW NW NW NW Wind char LT LT LT LT GN LT GN LT LT Avg clouds SC FW FW FW SC SC SC FW CL CL CL FW FW FW FW FW FW SC PoP 12hr 0 0 10 20 5 0 5 5 5 Rain shwrs S $$ IAZ048-190900- Ames-Story IA 41.99N 93.62W Elev. 936 ft 230 PM CDT Mon Aug 18 2025 Date 08/18/25 Tue 08/19/25 Wed 08/20/25 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 67 84 62 Temp 85 83 76 74 72 70 77 82 84 82 75 71 69 68 75 80 82 79 71 67 64 63 Dewpt 75 75 74 73 71 70 74 73 74 74 73 71 69 68 70 70 70 69 68 66 64 63 RH 72 77 94 97 97100 90 74 72 77 94100100100 84 72 67 72 90 97100100 Wind dir W NW NW NW NW N N N N N NE NE NE NE NE NE NE NE NE E E E Wind spd 6 5 4 3 3 3 4 6 6 5 4 3 2 3 5 6 6 5 3 2 2 2 Clouds SC SC SC SC SC B1 B1 SC SC SC FW FW SC SC FW FW FW FW FW FW FW FW PoP 12hr 20 5 5 5 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Obvis PF PF Heat index 94 90 88 91 88 Max heat 94 85 90 93 84 85 88 Date 08/21 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 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 61 83 59 77 54 73 50 74 Temp 78 77 65 63 80 78 66 60 74 73 59 54 70 68 54 50 69 68 Dewpt 66 66 64 62 68 69 64 58 58 59 55 51 53 54 52 50 53 54 PWind dir E SE W N NW N NW N N Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW FW FW SC SC SC SC FW FW CL FW FW FW FW FW FW FW FW PoP 12hr 0 0 10 20 5 5 5 10 10 Rain shwrs S S Tstms S S $$ IAZ004-190900- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 230 PM CDT Mon Aug 18 2025 Date 08/18/25 Tue 08/19/25 Wed 08/20/25 Thu CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 68 83 65 83 61 Temp 82 80 74 72 69 69 75 80 83 81 72 68 66 66 74 79 81 78 69 65 63 62 Dewpt 73 72 71 71 69 69 72 71 71 72 69 68 66 65 68 69 68 69 66 64 62 61 RH 74 77 90 97100100 90 74 67 74 90100100 97 82 72 65 74 90 97 97 97 Wind dir NW N N N N N N N N N NE NE N N NE E E E E SE SE S Wind spd 5 5 4 3 4 4 5 6 6 5 4 3 2 2 3 5 5 5 4 4 4 4 Clouds SC SC SC SC B1 B2 B1 SC SC FW SC FW FW SC SC FW FW CL FW CL FW FW PoP 12hr 10 5 5 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis PF F PF Heat index 88 88 Max heat 89 85 88 84 Date 08/21 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 83 62 80 55 74 51 72 48 73 Temp 78 77 66 64 76 75 61 56 71 70 56 52 66 66 53 49 67 67 Dewpt 67 68 64 63 66 64 57 53 55 55 50 48 50 51 49 47 50 52 PWind dir S S NW NW NW NW NW NW N Wind char LT LT GN LT GN LT GN LT LT Avg clouds FW FW FW SC B1 SC FW FW FW CL FW FW FW FW FW FW FW FW PoP 12hr 0 20 20 10 0 5 5 10 5 Rain shwrs S S S Tstms S S S $$ IAZ035-190900- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 230 PM CDT Mon Aug 18 2025 Date 08/18/25 Tue 08/19/25 Wed 08/20/25 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 66 84 62 Temp 84 82 75 73 71 70 77 82 83 82 74 70 68 67 75 80 81 79 70 66 63 63 Dewpt 74 75 73 72 71 70 73 72 72 74 72 70 68 67 70 70 69 69 67 65 63 62 RH 72 79 94 97100100 87 72 70 77 93100100100 84 72 67 72 90 97100 97 Wind dir W N N NW N N N N N N NE NE NE NE NE NE NE NE E E SE SE Wind spd 6 4 4 3 3 3 5 6 6 5 3 2 2 2 4 5 5 5 3 3 2 2 Clouds SC FW SC SC B1 B2 B1 SC SC FW SC FW SC SC FW FW FW FW FW FW FW FW PoP 12hr 10 5 5 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis PF PF PF Heat index 91 89 87 89 88 Max heat 93 87 90 85 86 Date 08/21 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 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 61 83 57 77 52 73 48 74 Temp 78 77 65 63 79 76 63 58 74 72 57 52 68 67 53 49 68 67 Dewpt 67 67 63 62 68 67 61 55 58 59 53 50 53 54 51 48 53 55 PWind dir SE S W N NW NW NW N N Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW FW FW SC SC SC SC FW FW CL FW FW FW FW FW FW FW SC PoP 12hr 0 5 20 20 0 5 5 10 10 Rain shwrs S S Tstms S S $$ IAZ094-190900- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 230 PM CDT Mon Aug 18 2025 Date 08/18/25 Tue 08/19/25 Wed 08/20/25 Thu CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 72 87 68 86 63 Temp 91 87 81 77 74 72 79 85 87 84 76 73 71 70 77 82 84 81 73 69 66 65 Dewpt 73 74 74 73 72 71 74 73 73 72 73 72 70 70 71 68 67 68 67 67 66 64 RH 56 65 79 87 93 97 85 67 63 67 90 97 97100 82 63 57 65 81 93100 97 Wind dir SW SW NW NW NW N N N N N NE NE NE NE NE NE NE NE NE E E NE Wind spd 9 5 4 4 3 3 4 6 8 5 4 4 4 4 5 6 6 5 4 3 3 3 Clouds SC SC SC B1 B1 B1 SC SC SC SC SC FW SC SC FW FW FW FW FW FW FW FW PoP 12hr 20 10 10 5 5 QPF 12hr 0.01 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Heat index 100 95 86 92 94 89 Max heat 103 92 94 95 87 87 88 Date 08/21 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 84 62 87 62 82 57 77 53 76 Temp 79 79 67 63 82 82 68 63 77 76 63 58 72 72 59 54 70 70 Dewpt 64 63 64 62 65 68 67 63 58 57 57 54 53 53 54 52 51 52 PWind dir E SE SW N N N N N N Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW FW SC SC SC FW FW FW SC SC SC SC SC SC SC PoP 12hr 0 0 5 20 5 5 10 10 20 Rain shwrs S S Tstms S $$ IAZ017-190900- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 230 PM CDT Mon Aug 18 2025 Date 08/18/25 Tue 08/19/25 Wed 08/20/25 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 68 82 64 81 59 Temp 81 78 73 71 70 69 75 79 81 80 71 68 66 65 73 78 79 76 67 64 61 60 Dewpt 73 73 72 70 69 68 72 72 72 72 70 67 66 65 68 69 68 67 65 62 60 60 RH 77 85 97 97 97 97 90 79 74 77 97 97100100 84 74 69 74 93 93 97100 Wind dir W N N NW N N N N N N N N NE NE NE NE NE NE E E SE SE Wind spd 8 5 4 3 3 3 6 6 6 5 3 2 2 2 3 5 5 4 2 2 2 2 Clouds B1 SC SC B1 B2 B2 B1 B1 SC FW FW FW FW SC FW FW FW FW CL FW FW FW PoP 12hr 10 5 5 0 0 QPF 12hr 0.08 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis PF PF PF PF Heat index 86 Max heat 86 85 Date 08/21 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 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 59 80 54 72 50 69 48 71 Temp 75 75 62 62 77 73 62 56 71 68 56 52 66 64 52 49 66 65 Dewpt 65 65 61 60 69 66 59 54 57 56 51 48 52 52 49 47 51 53 PWind dir SE S W NW NW NW NW NW NW Wind char LT LT LT LT GN LT GN LT LT Avg clouds FW FW FW SC B1 SC SC FW FW FW CL FW FW SC FW FW FW SC PoP 12hr 0 5 20 10 0 0 5 5 5 Rain shwrs S Tstms S $$ IAZ049-190900- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 230 PM CDT Mon Aug 18 2025 Date 08/18/25 Tue 08/19/25 Wed 08/20/25 Thu CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 69 84 66 81 61 Temp 84 82 75 73 71 70 76 81 83 81 73 70 68 67 74 79 80 77 69 65 63 61 Dewpt 74 76 74 72 70 69 73 72 72 72 71 70 67 67 69 69 68 67 66 64 62 61 RH 72 82 97 97 97 97 90 74 70 74 93100 97100 84 72 67 71 90 97 97100 Wind dir W NW NW NW NW N N N N N N NE N N NE NE NE NE NE E E E Wind spd 8 5 4 3 3 4 5 8 6 5 4 3 3 4 5 6 6 5 3 3 2 2 Clouds B1 SC SC SC B1 B1 B1 SC SC SC FW FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 20 5 5 5 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Obvis PF PF Heat index 91 88 86 89 Max heat 92 87 90 83 84 Date 08/21 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 80 59 82 57 76 52 72 48 73 Temp 76 75 63 61 78 77 65 59 74 71 58 53 68 67 54 49 68 66 Dewpt 64 64 61 60 67 68 63 57 58 58 53 50 53 53 51 48 52 53 PWind dir E SE W NW NW NW NW NW N Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW FW CL FW SC SC SC FW CL CL CL FW FW FW FW FW FW FW PoP 12hr 0 0 10 20 5 5 5 10 10 Rain shwrs S S Tstms S S $$ IAZ086-190900- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 230 PM CDT Mon Aug 18 2025 Date 08/18/25 Tue 08/19/25 Wed 08/20/25 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 71 86 67 84 62 Temp 92 86 80 77 74 73 79 83 86 83 76 73 71 69 76 80 82 79 71 68 65 63 Dewpt 75 76 75 74 73 72 73 73 73 74 72 71 70 68 70 70 69 69 68 66 64 63 RH 58 72 85 90 97 97 82 72 65 74 87 93 97 97 82 72 65 72 90 93 97100 Wind dir SW W NW W W NW N N N N N NE N N NE NE NE NE NE NE NE NE Wind spd 9 5 4 4 4 4 5 6 6 5 5 4 4 5 5 8 8 6 5 4 3 3 Clouds SC SC SC SC B1 B2 B1 SC SC SC FW FW FW FW FW SC FW FW FW FW FW FW PoP 12hr 30 10 10 5 0 QPF 12hr 0.01 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S Tstms C S S Heat index 102 96 85 89 92 89 Max heat 106 93 90 93 84 85 87 Date 08/21 Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 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 84 62 79 56 74 53 75 Temp 77 77 66 63 81 80 68 64 76 74 61 57 71 69 57 53 69 69 Dewpt 64 65 64 63 67 69 66 62 60 60 58 54 54 54 54 51 52 54 PWind dir NE SE W N NW NW NW NW N Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW FW CL FW FW FW SC SC FW CL CL FW FW FW FW FW FW SC PoP 12hr 0 0 5 20 5 5 5 10 10 Rain shwrs S S Tstms S S $$