Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
739 FOUS53 KDMX 270847 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 347 AM CDT Thu Aug 27 2026 IAZ060-272100- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 347 AM CDT Thu Aug 27 2026 Date Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 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 61 86 69 90 Temp 62 61 73 81 83 81 71 66 63 61 74 83 86 84 74 72 71 69 74 83 90 88 Dewpt 59 58 62 60 59 60 61 60 60 59 61 60 58 59 59 59 59 60 62 64 65 64 RH 90 90 68 49 44 49 71 81 90 93 64 46 39 43 59 64 66 73 66 53 44 45 Wind dir NW NW NW NW NW N S W SW W S S S SE SE S S S S S S S Wind spd 3 3 4 6 6 3 2 1 1 1 2 3 4 5 6 8 10 11 12 16 17 13 Wind gust 23 28 29 24 Clouds CL CL CL FW FW FW CL CL FW FW CL FW SC B1 B1 SC B1 B2 B1 B1 SC SC PoP 12hr 0 0 0 10 40 QPF 12hr 0 0 0 0 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C Date Sun 08/30/26 Mon 08/31/26 Tue 09/01/26 Wed 09/02/26 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 76 96 76 94 73 91 72 91 Temp 78 76 92 91 80 76 90 89 77 73 87 88 75 72 88 88 Dewpt 63 62 67 67 66 66 68 69 69 68 69 68 68 67 69 69 PWind dir S SW S SW S SW SE SW Wind char GN GN GN GN LT LT LT LT Avg clouds SC SC SC SC SC SC B1 SC SC SC SC SC SC SC SC FW PoP 12hr 10 10 30 30 50 30 30 20 Rain shwrs S C C S C C S S C S Tstms S S S S S S S S C S $$ IAZ039-272100- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 347 AM CDT Thu Aug 27 2026 Date Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 57 82 64 82 Temp 59 58 72 78 81 77 66 61 59 57 71 79 82 78 69 67 66 65 70 77 82 79 Dewpt 58 57 63 60 58 61 61 59 58 55 62 62 61 64 62 59 58 58 63 66 67 66 RH 96 96 73 54 46 58 84 93 96 93 73 56 49 62 78 75 75 78 78 69 61 64 Wind dir NW NW NW NW N N N W W NW SW SW SW S S S S S S S S S Wind spd 4 4 5 8 9 3 3 2 1 1 1 3 4 3 6 8 10 11 12 14 16 16 Wind gust 25 28 27 Clouds FW FW FW FW FW CL FW CL FW FW FW CL FW SC B1 B1 B1 B2 B2 B2 B1 SC PoP 12hr 0 0 0 10 60 QPF 12hr 0 0 0 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs L L C C S Tstms S Date Sun 08/30/26 Mon 08/31/26 Tue 09/01/26 Wed 09/02/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 70 89 73 87 70 85 68 86 Temp 73 70 85 84 76 73 85 83 74 70 82 81 71 68 83 82 Dewpt 63 62 71 72 68 66 72 73 68 67 70 71 67 66 71 71 PWind dir S S S SW S S E S Wind char BZ GN GN GN LT LT LT LT Avg clouds SC SC SC SC SC SC B1 SC SC SC B1 SC SC SC SC FW PoP 12hr 20 20 40 20 40 30 30 20 Rain shwrs S S S S C S S C C S C S Tstms S S S S C S S S S S S $$ IAZ048-272100- Ames-Story IA 41.99N 93.62W Elev. 936 ft 347 AM CDT Thu Aug 27 2026 Date Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 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 83 59 86 67 88 Temp 60 59 72 80 82 79 68 64 61 59 72 81 84 81 72 70 69 67 72 81 87 85 Dewpt 58 57 62 61 59 63 62 60 60 58 62 62 61 63 61 60 60 60 63 66 67 67 RH 93 93 71 52 46 58 81 87 97 96 71 53 46 54 68 71 73 78 73 60 52 55 Wind dir NW NW NW NW NW N N NE NW N S SW S SE SE S S S S S S S Wind spd 3 3 4 6 5 2 1 0 0 0 1 4 4 3 6 6 9 10 12 14 16 12 Wind gust 23 27 29 23 Clouds CL CL CL FW FW FW FW FW FW FW CL FW SC B1 B1 B1 B2 B2 B2 B1 SC SC PoP 12hr 0 0 0 10 50 QPF 12hr 0 0 0 0 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C Date Sun 08/30/26 Mon 08/31/26 Tue 09/01/26 Wed 09/02/26 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 73 94 73 92 70 89 69 89 Temp 75 73 89 89 77 74 88 87 74 71 85 85 72 70 86 85 Dewpt 64 63 69 70 68 66 70 72 69 67 70 70 69 67 71 71 PWind dir S SW S SW S SE SE SW Wind char GN GN GN LT LT LT LT LT Avg clouds SC SC SC SC SC B1 B1 SC SC B1 B1 SC SC SC SC FW PoP 12hr 10 10 30 20 40 30 30 20 Rain shwrs C S S C C S C S Tstms C S S S S S C S $$ IAZ004-272100- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 347 AM CDT Thu Aug 27 2026 Date Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 54 82 65 84 Temp 59 56 71 77 79 77 64 59 56 54 71 79 81 80 70 68 66 65 71 80 84 83 Dewpt 55 54 58 56 55 55 55 53 52 51 59 61 62 63 62 61 60 60 63 66 68 68 RH 87 93 63 48 44 47 73 80 86 90 66 54 53 56 76 78 81 84 76 62 59 61 Wind dir NW NW NW N N N NE W SW S S S S S SE S S S S S S S Wind spd 4 4 4 6 6 3 3 3 1 1 4 8 10 9 12 13 16 18 20 21 18 12 Wind gust 26 28 33 34 28 Clouds CL CL CL FW CL CL CL FW FW CL CL SC B1 B2 B1 B1 B2 OV B2 SC SC FW PoP 12hr 0 0 5 60 50 QPF 12hr 0 0 0 0.12 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs L L C C Tstms C C S Date Sun 08/30/26 Mon 08/31/26 Tue 09/01/26 Wed 09/02/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 71 87 70 85 65 83 65 85 Temp 73 71 84 85 73 70 83 82 69 66 80 81 68 66 82 82 Dewpt 65 63 68 70 67 65 68 68 64 61 66 67 65 63 67 68 PWind dir S S SW W N SE SE S Wind char GN GN GN GN LT LT LT LT Avg clouds SC SC SC SC SC SC B1 SC SC SC B1 B1 SC SC SC SC PoP 12hr 10 10 20 20 30 20 30 20 Rain shwrs S S C S S C S Tstms S S S $$ IAZ035-272100- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 347 AM CDT Thu Aug 27 2026 Date Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 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 83 56 85 66 88 Temp 59 57 72 80 82 79 66 61 58 56 72 82 84 81 72 69 68 66 72 81 87 85 Dewpt 58 55 61 59 57 60 59 57 56 55 62 62 62 63 62 60 59 60 64 66 68 68 RH 96 93 68 49 43 52 78 87 93 96 71 51 48 54 71 73 73 81 76 60 53 57 Wind dir NW NW NW NW NW NE E NE E N S S S S SE S S S S S S S Wind spd 3 2 3 4 4 2 1 0 1 0 2 4 6 5 6 8 11 13 14 19 17 11 Wind gust 27 29 27 Clouds FW CL CL FW FW FW FW CL SC SC CL SC B1 B2 B1 B1 OV OV B1 B1 SC SC PoP 12hr 0 0 0 30 60 QPF 12hr 0 0 0 0.04 0.13 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L L Tstms S C S Date Sun 08/30/26 Mon 08/31/26 Tue 09/01/26 Wed 09/02/26 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 72 92 72 90 68 87 67 88 Temp 75 72 88 87 75 72 87 84 72 68 83 83 70 68 85 84 Dewpt 64 63 70 71 67 65 70 71 67 66 69 70 67 66 70 70 PWind dir S S S SW E E SE S Wind char GN GN LT LT LT LT LT LT Avg clouds SC B1 SC SC SC SC B1 SC B1 B1 B2 B1 SC SC B1 SC PoP 12hr 10 20 20 20 30 20 30 20 Rain shwrs S S S S S C S S C S Tstms S S S S S C S C S $$ IAZ094-272100- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 347 AM CDT Thu Aug 27 2026 Date Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 62 86 68 89 Temp 63 61 75 81 84 81 71 67 64 62 76 83 85 83 74 71 70 68 74 84 88 87 Dewpt 61 58 62 59 58 59 59 59 59 59 59 57 55 57 58 58 57 58 60 62 62 63 RH 93 90 64 47 41 47 66 75 84 90 56 41 36 41 57 63 63 70 62 48 42 45 Wind dir N NW N N N N NE W SW SW S S S S S S S S S S S S Wind spd 3 3 3 5 6 5 3 1 1 1 3 3 4 5 6 8 10 11 13 18 18 16 Wind gust 24 29 26 Clouds FW CL CL CL FW FW FW FW FW CL CL SC FW B1 SC SC B1 B2 B1 B1 SC FW PoP 12hr 0 0 0 5 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Date Sun 08/30/26 Mon 08/31/26 Tue 09/01/26 Wed 09/02/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 95 76 93 73 91 73 91 Temp 78 75 92 92 81 76 90 90 78 74 88 88 76 73 88 87 Dewpt 61 61 64 65 65 64 65 66 68 66 67 67 68 66 67 68 PWind dir S S S SW S SW S SW Wind char GN BZ GN GN LT GN LT GN Avg clouds SC SC SC SC SC B1 SC SC FW SC SC SC SC SC SC FW PoP 12hr 5 5 20 20 40 20 20 20 Rain shwrs S S S C S S S Tstms S S S S S S $$ IAZ017-272100- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 347 AM CDT Thu Aug 27 2026 Date Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 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 54 83 64 84 Temp 58 57 72 78 79 77 64 60 56 54 72 80 83 79 69 67 66 65 70 77 83 81 Dewpt 56 55 61 57 56 58 57 55 54 52 59 59 59 61 62 60 59 59 63 65 67 67 RH 93 93 68 48 45 52 78 84 93 93 64 49 44 54 78 78 78 81 78 67 59 63 Wind dir NW NW NW NW NW N N W N N S SW S S S S S S S S S S Wind spd 4 3 4 8 6 2 2 2 0 0 0 3 4 5 8 8 11 12 16 18 18 16 Wind gust 23 28 31 32 Clouds CL CL CL CL CL CL CL CL CL FW CL FW SC B1 B1 B1 B2 OV B2 B1 SC SC PoP 12hr 0 0 0 20 80 QPF 12hr 0 0 0 0.02 0.16 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S D D C C Tstms S S S S S S Date Sun 08/30/26 Mon 08/31/26 Tue 09/01/26 Wed 09/02/26 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 70 90 71 88 67 85 65 86 Temp 73 70 86 85 74 72 85 83 71 68 82 81 69 66 83 82 Dewpt 63 62 69 70 67 66 69 70 66 64 67 67 65 65 68 68 PWind dir S S S SW SW SE SE S Wind char GN GN GN LT LT LT LT LT Avg clouds SC SC SC SC SC SC SC B1 SC B1 B1 B1 SC SC B1 SC PoP 12hr 10 20 20 20 30 30 40 20 Rain shwrs S S S S S C C S C S Tstms S S S S S S S S $$ IAZ049-272100- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 347 AM CDT Thu Aug 27 2026 Date Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 56 84 64 85 Temp 58 57 72 79 81 77 66 62 58 56 71 80 83 79 70 68 66 65 71 78 84 81 Dewpt 56 56 63 60 58 62 60 59 58 55 62 61 60 63 61 58 57 58 63 65 67 65 RH 93 96 73 52 46 60 81 90100 96 73 52 46 58 73 70 73 78 76 64 57 58 Wind dir NW NW NW NW NW N NE NW NW N N SW S SE SE S S S S S S S Wind spd 4 3 3 6 5 2 2 1 1 0 0 2 2 2 5 6 9 9 12 14 14 14 Wind gust 26 29 26 Clouds CL CL CL FW FW CL FW FW FW FW FW FW FW SC SC SC B1 B2 B2 B2 SC FW PoP 12hr 0 0 0 10 50 QPF 12hr 0 0 0 0 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S Date Sun 08/30/26 Mon 08/31/26 Tue 09/01/26 Wed 09/02/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 71 92 73 90 70 88 68 88 Temp 73 71 87 86 76 73 86 85 73 70 83 82 71 69 84 83 Dewpt 62 61 70 71 66 65 71 72 68 66 70 70 67 66 71 71 PWind dir S S S SW SE S SE S Wind char GN GN GN LT LT LT LT LT Avg clouds SC SC SC SC SC SC B1 SC SC B1 B1 SC SC SC SC SC PoP 12hr 10 10 40 20 40 30 30 20 Rain shwrs S C S S C C S C S Tstms S C S S C S S C S $$ IAZ086-272100- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 347 AM CDT Thu Aug 27 2026 Date Thu 08/27/26 Fri 08/28/26 Sat 08/29/26 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 60 86 67 87 Temp 62 60 74 81 83 80 69 65 62 60 75 82 85 83 72 69 68 67 74 82 87 85 Dewpt 60 58 64 62 61 62 62 61 60 59 64 60 58 61 60 59 58 58 63 64 63 63 RH 93 93 71 53 47 54 78 87 93 96 69 47 40 47 66 70 70 73 69 55 45 48 Wind dir NW NW N N NW N N NW W NE SW SW S SE SE S S S S S S S Wind spd 4 4 4 6 6 4 2 1 1 1 0 1 2 3 6 6 8 9 11 14 17 13 Wind gust 25 27 24 Clouds FW FW CL FW FW FW FW CL FW FW CL CL SC SC SC SC SC B2 B2 B2 SC FW PoP 12hr 0 0 0 5 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Date Sun 08/30/26 Mon 08/31/26 Tue 09/01/26 Wed 09/02/26 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 74 95 76 93 74 92 72 91 Temp 76 74 91 91 79 76 90 89 77 74 88 88 75 73 88 87 Dewpt 61 61 67 67 66 65 69 69 68 68 70 70 69 68 70 71 PWind dir S S S SW S SW S SW Wind char GN BZ GN GN LT LT LT LT Avg clouds SC SC SC SC SC B1 B1 SC FW SC SC SC SC SC SC SC PoP 12hr 10 10 40 30 30 20 30 20 Rain shwrs S C C C S S C S Tstms S S C S S C S $$