Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
925 FOUS53 KDMX 211827 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 127 PM CDT Fri Aug 21 2026 IAZ060-212100- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 127 PM CDT Fri Aug 21 2026 Date Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 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 86 65 83 60 80 Temp 86 83 74 70 67 66 75 81 82 78 70 66 62 60 70 77 80 77 Dewpt 70 69 66 64 62 62 65 65 64 63 61 59 58 57 59 59 60 61 RH 59 63 76 81 84 87 71 58 55 60 73 78 87 90 68 54 51 58 Wind dir NW NW N N NW W NW NW NW N N N NW N NE E E E Wind spd 9 6 5 3 3 3 4 9 10 5 3 3 2 1 1 2 2 3 Clouds FW FW FW FW FW FW CL CL FW FW CL CL FW SC SC SC B1 B1 PoP 12hr 5 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs Heat index 91 Max heat 89 93 83 83 86 82 Date Mon 08/24/26 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 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 64 78 65 83 67 84 65 83 Temp 67 64 75 74 67 66 80 81 71 67 81 81 69 65 80 80 Dewpt 60 60 64 65 64 64 70 71 68 66 69 68 66 64 67 67 PWind dir SE SE SE S SW NW NW NW Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B2 B2 B1 SC SC B1 SC B1 SC SC FW FW FW SC SC PoP 12hr 30 50 20 20 30 20 5 10 Rain shwrs C C S S C S S Tstms S S C S S $$ IAZ039-212100- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 127 PM CDT Fri Aug 21 2026 Date Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 63 79 57 77 Temp 84 79 71 67 65 63 72 77 79 75 66 62 59 57 67 74 77 74 Dewpt 68 66 64 62 61 61 64 64 61 60 57 55 54 53 58 58 57 59 RH 59 64 79 84 87 93 76 64 54 60 73 78 83 86 73 57 50 59 Wind dir NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW Wind spd 12 10 6 4 4 5 9 13 13 9 6 4 3 2 2 4 4 2 Clouds FW FW FW CL FW CL FW CL FW CL CL CL FW SC FW FW FW SC PoP 12hr 20 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Tstms S Date Mon 08/24/26 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 59 76 62 80 64 82 62 80 Temp 62 59 73 72 65 63 77 78 68 65 80 78 66 62 78 77 Dewpt 57 57 62 62 62 62 68 68 66 63 68 67 63 62 66 66 PWind dir E SE SE S SW W NW NW Wind char LT LT LT LT LT GN LT LT Avg clouds SC SC B1 SC SC B1 B1 SC B1 SC FW FW FW FW FW SC PoP 12hr 0 10 20 20 40 10 5 5 Rain shwrs S S S C C Tstms S S S C C $$ IAZ048-212100- Ames-Story IA 41.99N 93.62W Elev. 936 ft 127 PM CDT Fri Aug 21 2026 Date Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 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 86 64 82 58 79 Temp 85 81 71 68 65 64 73 79 81 77 67 63 60 58 69 76 79 76 Dewpt 69 68 65 63 62 61 65 65 63 63 60 58 56 55 59 59 60 62 RH 59 65 81 84 90 90 76 62 54 62 78 84 87 90 70 56 52 62 Wind dir NW N N NW NW NW NW N N N N N N N N S NE E Wind spd 9 6 4 3 2 3 6 10 10 4 3 2 2 1 1 3 2 1 Clouds FW FW FW FW FW FW CL CL FW FW CL SC FW FW SC SC SC B1 PoP 12hr 5 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs Heat index 90 Max heat 88 91 82 83 Date Mon 08/24/26 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 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 63 77 64 83 65 83 63 82 Temp 65 63 74 73 66 64 80 80 69 66 81 79 67 64 80 78 Dewpt 60 61 64 65 64 64 70 71 68 65 69 69 65 63 67 68 PWind dir SE SE SE S SW NW NW N Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B2 B2 B1 B1 B1 B1 SC B1 B1 SC FW FW FW SC SC PoP 12hr 30 40 20 20 20 20 5 10 Rain shwrs C C S S S S S Tstms S S S S S $$ IAZ004-212100- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 127 PM CDT Fri Aug 21 2026 Date Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 61 79 53 78 Temp 80 78 67 64 63 61 70 76 77 75 63 58 55 53 66 75 78 75 Dewpt 63 63 60 58 57 56 61 59 58 58 54 51 50 50 55 56 57 59 RH 56 60 78 81 81 84 73 56 52 55 72 77 83 89 68 52 48 58 Wind dir N N N NW NW NW N N N N N NW NW NW SE S S SE Wind spd 10 6 4 4 5 8 10 11 11 6 4 3 3 1 1 2 2 3 Clouds FW FW FW FW FW FW CL CL CL CL CL FW FW SC SC SC SC B1 PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Mon 08/24/26 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 60 77 62 82 62 81 59 80 Temp 62 60 73 73 64 63 79 79 66 63 78 78 63 60 77 77 Dewpt 57 57 64 65 62 62 68 68 62 60 64 63 59 57 63 64 PWind dir S S S SW W NW NW NW Wind char LT GN GN LT LT GN LT LT Avg clouds B1 B2 B2 B1 B1 SC B1 SC SC FW FW FW FW FW SC SC PoP 12hr 40 50 20 20 20 5 5 10 Rain shwrs C C S S S S S Tstms S S S S S S S $$ IAZ035-212100- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 127 PM CDT Fri Aug 21 2026 Date Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 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 61 82 55 80 Temp 84 80 69 65 63 62 72 79 80 77 65 60 57 55 67 77 79 76 Dewpt 66 66 62 61 59 59 64 62 61 61 56 55 53 53 58 58 59 62 RH 55 62 78 87 87 90 76 56 52 58 73 84 86 93 73 52 50 62 Wind dir NW N N NW NW NW N N N N N N N NW E S N S Wind spd 6 5 3 2 2 3 6 8 8 4 2 1 1 1 0 0 0 1 Clouds FW FW FW FW FW FW FW CL FW CL CL FW FW FW SC SC B1 B1 PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Date Mon 08/24/26 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 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 61 78 62 83 63 83 61 82 Temp 63 61 73 74 65 63 79 80 67 64 81 79 65 61 79 78 Dewpt 59 59 64 66 63 63 70 71 66 63 67 67 62 60 66 66 PWind dir SE SE SE SW W NW NW NW Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B2 B2 B1 B1 B1 B2 SC B1 SC SC FW FW FW SC SC PoP 12hr 40 40 20 20 20 20 5 10 Rain shwrs C C S S S S S S S Tstms S S S S S S S $$ IAZ094-212100- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 127 PM CDT Fri Aug 21 2026 Date Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 65 84 61 81 Temp 87 83 75 70 68 65 75 81 83 79 71 67 63 61 71 78 80 77 Dewpt 70 70 68 67 64 63 65 64 64 64 63 61 59 57 59 59 60 62 RH 57 65 79 90 87 93 71 56 53 60 76 81 87 87 66 52 51 60 Wind dir W NW NW N N NW N NW N N NE NE NE NE E SE E E Wind spd 6 5 4 3 3 3 3 5 9 6 4 3 3 2 2 2 3 3 Clouds FW FW SC FW FW FW FW CL CL FW SC FW B1 SC SC B1 B1 B1 PoP 12hr 5 5 5 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 92 88 Max heat 88 93 83 83 86 81 Date Mon 08/24/26 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 65 80 65 84 67 85 65 84 Temp 68 65 76 75 68 66 81 81 71 68 82 81 69 66 81 80 Dewpt 60 60 65 66 64 64 70 71 69 66 68 68 66 64 66 67 PWind dir E SE SE SE SW NW NW NW Wind char LT GN LT LT LT LT LT LT Avg clouds B2 B2 B2 B1 B1 B1 B1 SC SC B2 SC SC FW FW FW SC PoP 12hr 40 30 10 5 30 20 5 10 Rain shwrs C C S C S Tstms S S C S $$ IAZ017-212100- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 127 PM CDT Fri Aug 21 2026 Date Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 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 61 79 54 78 Temp 81 78 68 65 63 63 71 76 77 75 64 60 56 55 67 75 77 74 Dewpt 64 64 62 60 59 59 62 61 57 57 54 52 52 51 56 55 55 58 RH 56 62 81 84 87 87 73 60 50 54 70 75 86 86 68 50 47 57 Wind dir NW NW NW NW NW NW N N NW NW NW NW NW NW NW NW NW E Wind spd 11 8 4 4 4 6 9 12 12 6 4 3 2 1 1 2 2 1 Clouds SC FW FW CL CL FW CL CL CL CL CL FW FW FW FW FW SC SC PoP 12hr 5 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs Date Mon 08/24/26 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 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 57 76 60 82 63 82 60 81 Temp 61 58 73 72 64 62 78 79 67 63 80 78 65 60 79 78 Dewpt 56 57 61 61 61 62 67 67 64 62 64 62 60 60 63 62 PWind dir SE SE S SW SW NW NW NW Wind char LT LT LT LT LT GN LT LT Avg clouds SC B1 B2 B1 SC B1 B2 SC SC FW FW FW FW FW FW SC PoP 12hr 5 20 20 20 30 5 5 5 Rain shwrs S S S S C S Tstms S S C S $$ IAZ049-212100- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 127 PM CDT Fri Aug 21 2026 Date Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 62 82 56 80 Temp 85 80 70 66 64 62 73 79 80 76 66 61 58 56 68 76 79 75 Dewpt 68 66 63 61 60 60 64 63 61 61 58 55 54 53 58 57 57 59 RH 57 62 78 84 87 93 73 58 52 60 75 81 86 90 70 52 47 58 Wind dir NW NW N N NW NW NW NW N N N NW N N N N N NE Wind spd 9 8 5 3 3 3 6 10 11 6 4 3 3 2 1 2 2 1 Clouds FW CL FW FW CL CL CL CL FW CL FW CL FW CL SC SC SC SC PoP 12hr 10 0 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs Tstms Date Mon 08/24/26 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 59 78 61 82 64 83 62 82 Temp 62 60 74 73 64 63 78 78 67 64 81 78 66 62 79 78 Dewpt 57 58 62 62 62 62 68 69 66 63 67 66 63 61 65 65 PWind dir SE SE SE S SW NW NW NW Wind char LT LT LT LT LT LT LT LT Avg clouds SC B1 B2 B1 SC B1 B1 SC SC SC SC FW FW FW FW SC PoP 12hr 10 20 10 20 40 10 5 5 Rain shwrs S S S C C Tstms C C $$ IAZ086-212100- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 127 PM CDT Fri Aug 21 2026 Date Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 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 65 84 59 81 Temp 87 84 75 70 67 66 75 82 82 79 70 65 61 59 71 78 80 78 Dewpt 72 71 68 65 63 63 66 66 65 64 61 60 58 57 60 59 60 62 RH 61 65 79 84 87 90 74 58 56 60 73 84 90 93 68 52 51 58 Wind dir W NW NW N NW NW NW NW NW N N N NW N N N N NE Wind spd 9 6 5 4 4 3 5 10 11 8 4 3 3 2 2 2 3 2 Clouds FW FW FW FW FW FW CL CL FW FW FW CL FW CL FW SC SC SC PoP 12hr 10 10 0 0 0 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 93 89 Max heat 88 94 83 84 85 82 Date Mon 08/24/26 Tue 08/25/26 Wed 08/26/26 Thu 08/27/26 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 63 78 64 83 67 84 65 83 Temp 65 63 75 74 66 66 80 81 70 67 82 81 69 65 81 80 Dewpt 60 60 64 66 64 64 70 72 69 67 70 70 67 65 68 68 PWind dir E SE SE SE S NW NW NW Wind char LT LT LT LT LT LT LT LT Avg clouds SC B1 B1 B1 SC SC B1 SC SC B1 SC FW FW FW FW SC PoP 12hr 10 30 10 10 20 20 5 5 Rain shwrs C S S S Tstms S S S $$