Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
754 FOUS53 KDMX 190303 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 1002 PM CDT Fri Sep 18 2026 IAZ060-190900- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 1002 PM CDT Fri Sep 18 2026 Date 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon 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 82 63 68 57 Temp 72 71 71 74 78 80 77 70 68 67 65 64 64 66 64 63 62 59 58 Dewpt 72 71 70 71 74 74 73 70 68 67 65 64 63 64 62 62 61 59 58 RH 100100 97 90 88 82 87100100100100100 97 93 93 97 97100100 Wind dir SE S SE SW W NW N N N N N NE NE NE NE NE NE NE NE Wind spd 8 8 6 6 9 8 6 8 6 6 9 10 11 11 11 11 10 10 11 Clouds B2 B2 B2 B2 B2 B1 B1 B2 B2 OV B2 OV OV OV OV OV OV OV OV PoP 12hr 40 40 40 60 50 QPF 12hr 0.16 0.07 0.36 0.18 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S S C C C C C C L L C C C C L Tstms C C C S S C C S S S S S Heat index 85 Max heat 87 Date 09/21 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 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 61 54 61 50 65 54 67 56 68 Temp 58 60 56 54 57 58 52 50 60 61 55 54 62 64 58 57 63 64 Dewpt 57 57 56 53 54 54 52 50 54 56 55 54 58 60 58 57 60 61 PWind dir NE NE NE NE E E SE SE E Wind char GN GN LT LT LT LT LT LT LT Avg clouds OV B2 B2 B2 B2 B1 SC SC SC SC SC B1 B1 B1 SC SC B1 B1 PoP 12hr 60 30 10 0 0 5 20 20 20 Rain shwrs L L C S S S $$ IAZ039-190900- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 1002 PM CDT Fri Sep 18 2026 Date 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 65 78 60 67 54 Temp 68 67 67 72 76 76 72 67 65 63 61 62 64 67 65 60 57 56 54 Dewpt 68 67 67 71 72 72 69 67 65 63 61 62 60 58 58 57 57 55 54 RH 100100100 97 87 87 90100100100100100 87 73 78 90100 96100 Wind dir SE SE S S SW NW N N N NE NE NE NE NE NE E E NE NE Wind spd 11 9 8 8 8 8 10 10 9 11 13 13 16 16 13 13 12 13 14 Wind gust 26 Clouds OV OV B2 B2 B2 B2 OV B2 OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 80 60 40 50 20 QPF 12hr 0.78 0.12 0.47 0.06 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L D L C C C C S C C C C S S S S S S C Tstms C C S S C C S Obvis PF PF PF PF Flood A A A A Date 09/21 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 62 49 61 46 65 50 68 53 69 Temp 60 59 52 50 58 58 50 47 62 62 53 52 65 64 56 54 66 65 Dewpt 55 53 52 49 51 50 49 47 52 52 53 52 56 56 56 54 58 57 PWind dir NE NE NE NE E E SE E E Wind char GN GN GN LT LT LT LT LT LT Avg clouds B2 B2 B2 B1 B1 B1 SC FW FW SC SC SC B1 SC SC SC B1 SC PoP 12hr 60 40 10 0 0 5 10 5 5 Rain shwrs C L C C $$ IAZ048-190900- Ames-Story IA 41.99N 93.62W Elev. 936 ft 1002 PM CDT Fri Sep 18 2026 Date 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon 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 79 62 67 57 Temp 71 69 69 73 76 78 74 68 66 65 64 63 63 66 64 61 60 58 57 Dewpt 71 69 69 72 73 74 72 68 66 65 64 63 63 63 61 61 60 58 57 RH 100100100 97 90 88 93100100100100100100 90 90100100100100 Wind dir SE S S W W NW N N N N N NE NE NE NE NE E NE NE Wind spd 6 6 5 6 8 6 8 9 6 8 10 11 12 12 11 10 10 10 11 Clouds B2 B2 OV B2 OV B2 B2 B2 OV OV B2 OV OV OV OV OV OV OV B2 PoP 12hr 60 50 30 50 30 QPF 12hr 0.36 0.04 0.25 0.09 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C C S S S S C S C C C C S S C C L Tstms C C C S S S S S S Date 09/21 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 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 61 52 60 48 65 52 67 55 68 Temp 58 59 55 52 58 58 51 49 61 61 55 54 63 64 58 56 64 64 Dewpt 57 56 55 52 53 53 51 49 54 55 55 54 59 59 58 56 60 61 PWind dir NE NE NE E E E SE SE E Wind char GN LT LT LT LT LT LT LT LT Avg clouds OV OV B2 B2 B1 B1 SC FW SC SC SC B1 B1 B1 B1 B1 SC B1 PoP 12hr 60 30 10 0 0 5 20 5 20 Rain shwrs L L C S S S $$ IAZ004-190900- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 1002 PM CDT Fri Sep 18 2026 Date 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 68 56 65 52 Temp 66 64 63 66 66 67 64 60 59 57 57 59 63 65 63 57 55 54 52 Dewpt 66 64 63 66 66 66 64 60 59 57 57 59 58 58 58 57 55 54 52 RH 100100100100100 97100100100100100100 84 78 84100100100100 Wind dir E NE N N N N N N N NE NE NE NE NE NE NE E E E Wind spd 6 6 6 8 9 11 11 12 11 12 13 14 14 13 12 11 9 10 10 Wind gust 25 Clouds OV OV OV OV OV OV OV OV OV B2 OV B2 B2 B2 B2 OV B2 B2 B2 PoP 12hr 60 30 20 20 40 QPF 12hr 0.24 0.09 0.07 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C S S S S S S C C C Tstms C S Obvis PF PF PF PF Date 09/21 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 60 47 61 45 65 49 68 52 68 Temp 57 56 50 48 59 58 49 46 62 62 52 51 65 65 55 53 67 66 Dewpt 54 55 50 48 50 52 49 46 52 55 52 51 57 59 55 53 58 60 PWind dir NE NE E SE SE S S SE SE Wind char GN LT LT LT LT LT LT LT LT Avg clouds B2 B2 B2 B1 B1 B1 SC FW SC SC SC SC B1 B1 B1 SC B1 B1 PoP 12hr 50 20 5 0 5 20 20 10 5 Rain shwrs C C S S S $$ IAZ035-190900- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 1002 PM CDT Fri Sep 18 2026 Date 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon 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 76 59 67 54 Temp 69 68 67 70 72 73 69 64 63 62 61 61 64 66 64 60 58 56 54 Dewpt 69 68 67 70 72 72 68 64 63 62 61 61 61 60 61 60 58 56 54 RH 100100100100100 97 97100100100100100 90 81 90100100100100 Wind dir SE S W NW NW N N N N N N NE NE NE NE E E E E Wind spd 6 5 4 5 5 8 8 9 9 10 10 11 12 11 9 9 8 9 10 Clouds B2 B2 OV OV B2 B2 B2 OV OV OV OV OV B2 B2 B2 OV OV OV OV PoP 12hr 60 40 20 20 30 QPF 12hr 0.39 0.02 0.15 0 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C S S S S S S S S S S S C C L Tstms C C S S S Obvis PF Date 09/21 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 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 61 49 61 46 65 50 67 53 69 Temp 58 57 53 50 58 57 50 47 61 61 54 52 64 63 57 54 66 65 Dewpt 56 56 53 50 52 54 50 47 53 56 54 52 58 60 57 54 60 62 PWind dir NE NE E E SE SE S SE SE Wind char GN LT LT LT LT LT LT LT LT Avg clouds OV B2 B2 B2 B1 B1 SC SC SC SC SC B1 B1 B1 SC B1 B1 B1 PoP 12hr 60 20 10 0 5 10 20 10 10 Rain shwrs L L S S $$ IAZ094-190900- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 1002 PM CDT Fri Sep 18 2026 Date 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 84 64 71 59 Temp 76 72 71 74 80 82 78 72 69 68 66 66 68 69 65 64 63 61 59 Dewpt 71 70 68 71 73 74 74 71 69 68 66 66 68 66 64 64 63 61 59 RH 85 93 90 90 79 77 88 97100100100100100 90 97100100100100 Wind dir S SW SW SW SW SW NW N N N N N NE NE NE NE NE NE NE Wind spd 9 8 8 9 10 8 4 6 6 6 8 8 10 11 10 10 9 9 10 Clouds B1 B1 B2 B2 B1 B1 B1 B2 OV B2 OV OV OV OV OV OV OV OV OV PoP 12hr 30 30 70 60 60 QPF 12hr 0.06 0.02 0.87 0.18 0.21 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S S C L L C C C L L C C L L L Tstms C C S S C C C C C S C C Heat index 89 Max heat 86 90 Date 09/21 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 62 53 60 48 63 52 65 55 67 Temp 61 60 56 54 57 57 52 49 61 58 54 53 63 61 58 56 63 62 Dewpt 61 59 56 54 57 56 52 49 57 58 54 53 61 61 58 56 63 62 PWind dir NE NE NE NE NE E E E E Wind char GN GN GN LT LT LT LT LT LT Avg clouds OV B2 B2 B2 B2 B1 B1 SC SC SC SC B1 B2 B1 B1 B1 B1 SC PoP 12hr 60 30 10 0 0 5 10 20 20 Rain shwrs L C C S S $$ IAZ017-190900- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 1002 PM CDT Fri Sep 18 2026 Date 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon 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 63 72 55 65 50 Temp 68 66 65 69 71 70 65 62 60 59 57 60 63 65 62 57 55 52 51 Dewpt 66 65 65 68 70 69 65 62 60 58 57 60 58 57 57 57 55 52 51 RH 93 97100 97 97 97100100100 96100100 84 75 84100100100100 Wind dir SE SE SE NW NW N N N N NE NE NE NE NE NE E E E E Wind spd 9 6 5 5 6 8 8 10 10 10 11 13 13 13 10 9 9 10 11 Wind gust 24 Clouds OV OV B2 OV OV B2 OV OV OV OV OV B2 B2 B2 B2 B2 OV OV OV PoP 12hr 70 50 20 20 30 QPF 12hr 0.74 0.06 0.14 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L L C C C S S S S S S C C C Tstms C S S S S Obvis PF PF PF PF Flood A A A A Date 09/21 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 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 60 46 60 43 64 48 66 50 67 Temp 58 56 50 47 57 56 48 45 61 60 52 50 64 62 55 52 65 63 Dewpt 54 53 50 47 49 50 48 45 50 52 52 50 56 56 55 52 57 58 PWind dir NE NE E E SE SE SE SE SE Wind char GN LT LT LT LT LT LT LT LT Avg clouds OV B2 B2 B2 B1 B1 SC SC FW SC SC B1 B1 B1 SC SC B1 SC PoP 12hr 50 20 5 0 0 5 20 5 10 Rain shwrs C C S S S $$ IAZ049-190900- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 1002 PM CDT Fri Sep 18 2026 Date 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 66 79 60 67 54 Temp 68 68 68 72 77 78 74 68 66 64 62 63 63 66 64 60 58 56 55 Dewpt 68 68 68 71 73 73 71 68 66 64 62 63 61 61 60 59 58 56 55 RH 100100100 97 87 85 90100100100100100 93 84 87 96100100100 Wind dir SE SE S SW SW W N N N N N NE NE NE NE NE E NE NE Wind spd 9 8 6 6 8 6 6 9 8 9 10 12 12 13 12 11 10 10 12 Clouds B2 OV B2 OV B2 B2 B2 B2 OV OV OV OV OV B2 B2 B2 B2 B2 B2 PoP 12hr 60 50 40 60 40 QPF 12hr 0.49 0.06 0.24 0.05 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C C C C S C C C L L C C S S C C C Tstms C C S S C C S S Date 09/21 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 61 49 60 46 65 50 67 53 68 Temp 58 58 54 50 57 57 50 47 60 61 53 52 62 63 56 54 63 64 Dewpt 55 55 53 50 51 51 50 47 52 54 53 52 56 57 56 54 58 59 PWind dir NE NE NE NE E E SE SE E Wind char GN GN LT LT LT LT LT LT LT Avg clouds OV B2 B2 B1 B1 B1 SC FW FW SC SC SC B1 B1 SC SC SC SC PoP 12hr 60 30 10 0 0 5 10 5 5 Rain shwrs C L C C $$ IAZ086-190900- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 1002 PM CDT Fri Sep 18 2026 Date 09/18/26 Sat 09/19/26 Sun 09/20/26 Mon 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 65 72 59 Temp 72 71 71 76 81 83 80 74 70 69 67 68 69 70 67 64 63 61 59 Dewpt 72 71 71 73 76 77 77 73 70 69 67 68 68 66 66 64 63 61 59 RH 100100100 90 85 82 91 97100100100100 97 87 97100100100100 Wind dir SE SE SE S SW SW NW N NW NW N NE NE NE NE NE NE NE NE Wind spd 9 6 6 6 9 8 4 6 5 6 6 9 10 11 11 10 10 10 11 Clouds B1 B1 B2 B2 B2 B1 B1 B2 B2 OV OV OV OV B2 OV OV OV OV OV PoP 12hr 40 40 70 70 60 QPF 12hr 0.20 0.18 0.74 0.37 0.32 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C S S C C L C L L L L L L L L L Tstms S S S S C C C S S S C C S Obvis PF Heat index 87 92 87 Max heat 89 96 Date 09/21 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 Fri 09/25/26 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 63 54 61 49 66 53 68 55 70 Temp 61 61 57 55 58 58 53 50 62 62 56 54 64 63 59 56 66 65 Dewpt 60 60 57 54 56 56 53 50 57 59 56 54 61 61 59 56 62 63 PWind dir NE NE NE NE NE NE E E E Wind char GN GN GN LT LT LT LT LT LT Avg clouds OV B2 B2 B2 B2 B1 SC SC SC SC SC SC B1 B1 SC SC B1 SC PoP 12hr 60 40 20 0 0 5 10 5 20 Rain shwrs L L C C S S $$