Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
801 FOUS53 KDMX 211030 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 530 AM CDT Thu Aug 21 2025 IAZ060-212100- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 530 AM CDT Thu Aug 21 2025 Date Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 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 61 85 65 79 Temp 67 73 78 81 80 71 66 63 61 73 81 84 82 73 71 68 65 71 76 78 74 Dewpt 65 65 65 63 63 63 62 61 60 64 66 67 67 68 67 66 65 65 61 58 58 RH 93 76 64 54 56 76 87 93 97 73 60 57 61 84 87 93100 81 60 50 57 Wind dir E E E E E E SE S S S S S N S NW NW NW NW NW NW NW Wind spd 4 5 5 5 5 4 3 2 2 4 4 4 5 4 4 4 5 8 10 11 10 Clouds SC SC FW FW CL FW FW FW SC SC SC SC B1 B2 B1 B1 B1 SC FW FW CL PoP 12hr 0 0 5 50 5 QPF 12hr 0 0 0 0.06 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C Tstms C C C S Dense Fog Y Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 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 53 74 50 70 48 72 50 77 Temp 60 54 71 71 57 51 68 68 55 49 69 69 55 52 73 72 Dewpt 55 51 53 52 52 49 48 48 48 46 48 49 50 48 50 52 PWind dir NW NW NW NW N N E W Wind char LT GN LT LT LT LT LT LT Avg clouds CL CL FW FW FW FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 5 5 5 5 $$ IAZ039-212100- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 530 AM CDT Thu Aug 21 2025 Date Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 60 81 62 74 Temp 61 70 76 79 76 67 64 61 61 71 79 81 76 70 68 64 62 68 73 72 68 Dewpt 61 63 64 65 65 64 62 60 60 65 67 67 67 67 66 63 62 61 59 57 56 RH 100 78 66 62 69 90 93 97 97 81 67 63 74 90 93 97100 78 62 59 65 Wind dir E SE E E SE E SE S S S SW W W W NW W NW NW NW NW NW Wind spd 3 5 5 4 3 2 2 2 2 4 5 5 5 4 4 4 5 10 12 14 11 Clouds SC SC SC FW FW FW FW SC SC SC SC B1 B1 SC SC SC SC SC FW FW CL PoP 12hr 0 0 10 40 0 QPF 12hr 0 0 0 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C Tstms S S S Obvis PF Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 51 69 48 67 45 69 47 73 Temp 57 52 67 64 53 48 65 63 51 47 67 64 52 49 70 68 Dewpt 53 50 53 52 49 46 49 48 47 44 49 51 48 46 52 54 PWind dir NW NW NW NW NW NW NW W Wind char LT GN LT GN LT LT LT LT Avg clouds CL CL FW FW FW CL FW FW FW FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 0 0 5 5 $$ IAZ048-212100- Ames-Story IA 41.99N 93.62W Elev. 936 ft 530 AM CDT Thu Aug 21 2025 Date Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 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 81 59 83 63 76 Temp 65 72 78 81 78 69 64 61 60 71 79 83 78 71 69 65 63 69 75 75 71 Dewpt 64 66 66 66 66 64 62 61 59 66 68 69 69 69 67 65 63 63 60 59 58 RH 97 81 67 60 67 84 93100 96 84 69 63 74 93 93100100 81 60 58 63 Wind dir E SE SE E E E SE S S S SW SW N N NW NW NW NW NW NW NW Wind spd 3 5 5 5 4 3 2 2 2 4 5 5 5 3 3 3 5 8 10 11 9 Clouds SC SC FW CL CL FW FW SC B1 SC SC SC B1 B1 B1 SC SC SC FW CL CL PoP 12hr 0 0 10 50 5 QPF 12hr 0 0 0 0.08 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C Tstms C S C S Obvis PF Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 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 50 72 48 69 46 71 48 75 Temp 57 51 69 67 53 48 66 65 51 47 68 66 53 49 71 70 Dewpt 55 51 54 54 51 47 49 50 48 46 49 52 49 48 52 55 PWind dir NW NW NW NW NW N N SW Wind char LT GN LT LT LT LT LT LT Avg clouds CL FW FW FW FW FW FW FW FW FW FW FW FW SC FW FW PoP 12hr 0 0 0 0 0 5 5 5 $$ IAZ004-212100- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 530 AM CDT Thu Aug 21 2025 Date Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 63 80 57 71 Temp 63 71 77 80 78 68 66 64 65 72 78 78 76 67 63 59 57 65 69 70 67 Dewpt 63 67 68 68 68 65 63 62 62 65 68 69 68 64 61 58 54 55 54 55 54 RH 100 87 74 67 71 90 90 93 90 79 71 74 76 90 93 96 90 70 59 59 63 Wind dir SE S S S S S S S SW SW W NW NW NW W NW NW NW NW NW NW Wind spd 5 9 9 9 6 6 6 6 5 6 8 8 5 5 5 6 8 12 14 14 10 Clouds B1 B1 FW FW FW SC SC B1 B2 B1 B1 B1 SC SC FW FW FW CL FW FW FW PoP 12hr 0 10 50 20 0 QPF 12hr 0 0 0.08 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S S Tstms S S C C S S Obvis PF Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 50 68 45 66 45 69 48 73 Temp 53 51 65 64 50 47 63 63 49 46 65 66 52 49 69 69 Dewpt 50 47 52 50 47 44 46 48 45 43 48 51 48 45 52 56 PWind dir NW NW NW NW NW N S SW Wind char LT GN LT LT LT LT LT LT Avg clouds FW CL FW FW FW FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 0 5 5 5 $$ IAZ035-212100- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 530 AM CDT Thu Aug 21 2025 Date Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 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 81 61 83 60 75 Temp 65 72 78 80 77 67 64 62 61 71 80 82 78 69 67 63 60 67 72 73 70 Dewpt 64 67 68 67 67 65 62 61 61 65 69 70 69 68 65 63 60 59 58 57 57 RH 97 84 71 65 71 93 93 97100 81 69 67 74 97 93100100 75 61 57 63 Wind dir SE SE SE SE SE SE S S S S SW W NW NW NW NW NW NW NW NW NW Wind spd 4 6 5 6 5 4 4 4 3 5 5 5 5 4 3 4 5 9 11 12 9 Clouds B1 SC SC FW FW FW SC SC B1 SC SC B1 B2 B1 SC SC SC FW CL CL CL PoP 12hr 0 0 30 40 0 QPF 12hr 0 0 0.04 0.05 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S S Tstms S C C C S Obvis PF Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 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 50 71 46 69 45 71 47 74 Temp 55 51 68 67 52 47 65 65 50 46 67 66 52 48 71 70 Dewpt 53 49 53 53 49 46 48 50 46 44 49 52 48 47 53 56 PWind dir NW NW NW NW NW N SE S Wind char LT GN LT LT LT LT LT LT Avg clouds FW FW FW FW FW FW FW FW FW FW FW FW FW SC FW FW PoP 12hr 0 0 0 0 0 5 5 5 $$ IAZ094-212100- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 530 AM CDT Thu Aug 21 2025 Date Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 61 84 65 81 Temp 67 73 79 81 80 70 66 63 61 73 80 83 81 72 70 67 65 73 78 79 75 Dewpt 66 67 65 64 64 63 62 61 60 64 64 65 67 67 66 66 65 66 63 61 59 RH 97 81 62 56 58 78 87 93 97 73 58 55 63 84 87 97100 79 60 54 58 Wind dir E E E E E E SE SE S S S S SE S NW NW N N N N N Wind spd 4 5 4 4 4 3 3 2 2 2 2 2 2 3 3 3 4 5 8 9 8 Clouds SC SC FW FW CL FW CL SC SC FW FW SC SC B1 B1 B2 B1 B1 SC FW CL PoP 12hr 0 0 0 40 10 QPF 12hr 0 0 0 0.06 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C Tstms C C Obvis PF Dense Fog Y Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 53 75 51 71 48 72 50 76 Temp 60 54 72 70 59 53 68 67 54 49 69 69 54 51 72 72 Dewpt 56 52 52 54 54 51 49 49 48 47 47 49 49 48 49 51 PWind dir N NW N N N N NE E Wind char LT LT LT LT LT LT LT LT Avg clouds CL CL FW FW FW SC SC SC FW FW FW FW FW SC SC SC PoP 12hr 0 0 5 5 5 5 10 10 $$ IAZ017-212100- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 530 AM CDT Thu Aug 21 2025 Date Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 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 79 59 79 58 71 Temp 61 70 76 77 76 66 63 61 61 71 77 77 74 68 64 61 59 65 69 69 66 Dewpt 61 65 66 66 66 64 61 60 59 65 69 69 68 65 62 59 56 58 56 56 55 RH 100 84 71 69 71 93 93 97 93 81 76 76 82 90 93 93 90 78 63 63 68 Wind dir SE SE SE SE S SE S S S SW SW W NW NW W W NW NW NW NW NW Wind spd 4 5 5 5 4 3 3 3 3 5 5 5 5 4 3 5 5 10 13 13 10 Clouds SC SC FW FW FW FW SC B1 B1 B1 B1 B1 B1 SC SC SC FW FW FW FW CL PoP 12hr 0 0 30 20 0 QPF 12hr 0 0 0.04 0.04 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S Tstms C C S S Obvis PF Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 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 49 67 45 65 44 67 45 71 Temp 54 50 65 62 50 47 63 61 48 45 65 64 50 47 68 67 Dewpt 50 48 52 51 47 44 48 49 44 43 49 51 46 45 53 56 PWind dir NW NW NW NW NW NW W SW Wind char LT GN LT LT LT LT LT LT Avg clouds CL FW FW FW CL FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 0 5 5 5 $$ IAZ049-212100- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 530 AM CDT Thu Aug 21 2025 Date Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 59 81 62 75 Temp 61 70 76 79 78 67 64 61 60 71 79 81 77 70 68 64 62 68 73 74 69 Dewpt 61 63 63 63 64 63 62 60 59 65 67 67 67 67 66 64 62 62 60 58 56 RH 100 78 64 58 62 87 93 97 96 81 67 63 71 90 93100100 81 64 57 63 Wind dir E SE E E E E SE SE S SW SW SW W W NW NW NW NW NW NW NW Wind spd 4 5 4 3 2 2 2 2 2 4 5 4 4 3 3 4 5 8 11 12 9 Clouds SC SC FW FW FW FW FW FW SC SC SC SC B1 B1 B1 SC SC SC FW CL CL PoP 12hr 0 0 10 50 5 QPF 12hr 0 0 0 0.05 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C Tstms C S C S Obvis PF Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 50 70 47 67 45 69 46 73 Temp 56 51 67 66 52 48 65 63 50 47 67 64 52 48 70 68 Dewpt 53 49 53 52 49 46 49 48 47 44 49 51 48 45 51 54 PWind dir NW NW NW NW NW NW NW W Wind char LT GN LT LT LT LT LT LT Avg clouds CL CL FW FW CL CL FW FW FW FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 0 5 5 5 $$ IAZ086-212100- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 530 AM CDT Thu Aug 21 2025 Date Thu 08/21/25 Fri 08/22/25 Sat 08/23/25 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 80 61 84 65 81 Temp 64 71 77 80 78 68 66 63 61 73 80 83 81 72 70 67 65 73 78 78 74 Dewpt 62 62 62 62 64 63 63 62 61 65 65 65 67 66 67 66 65 66 63 61 59 RH 93 73 60 54 62 84 90 97100 76 60 55 63 81 90 97100 79 60 56 59 Wind dir E E E E E E E E SE S S S SE SE W NW NW NW NW NW NW Wind spd 4 6 5 5 4 3 2 2 2 2 2 2 3 3 4 4 5 6 10 10 10 Clouds SC FW FW CL CL CL CL FW SC B1 SC FW SC B1 B1 B1 B1 SC SC FW CL PoP 12hr 0 0 0 40 10 QPF 12hr 0 0 0 0.04 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C Tstms S S Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 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 54 73 50 70 47 71 48 75 Temp 59 54 71 69 57 52 67 66 53 49 69 68 54 50 72 71 Dewpt 56 53 53 54 53 50 49 50 49 47 48 51 50 48 50 53 PWind dir NW NW NW NW NW N N NW Wind char LT GN LT LT LT LT LT LT Avg clouds CL FW FW FW CL FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 5 5 5 5 $$