Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
841 FOUS53 KDMX 181653 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 1153 AM CDT Fri Sep 18 2026 IAZ060-182100- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 1153 AM CDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 70 82 64 69 Temp 71 79 80 76 73 72 71 75 79 81 76 71 69 67 65 66 66 67 65 Dewpt 69 73 76 74 73 71 70 72 73 74 72 71 69 67 65 66 65 66 63 RH 93 82 88 94100 97 97 90 82 79 87100100100100100 97 97 93 Wind dir SE SE SE SE SE S SE W W NW N N N N N NE NE NE NE Wind spd 11 11 10 10 8 8 8 6 9 8 6 8 6 6 6 9 10 11 11 Clouds B2 SC SC SC B2 B2 B2 B2 B2 B2 B2 B2 B2 OV OV OV OV OV OV PoP 12hr 10 60 60 90 70 QPF 12hr 0.01 0.14 0.04 0.62 0.20 Snow 12hr 00-00 00-00 00-00 Rain shwrs S L C C C S S L C C S L L L L C Tstms S C S C C S S C C S S S Heat index 86 86 Max heat 87 84 88 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 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 62 53 62 49 64 52 69 Temp 63 58 59 60 57 54 58 59 53 50 60 61 56 53 62 66 Dewpt 61 58 57 57 56 53 54 54 53 50 53 56 55 53 58 60 PWind dir NE NE NE NE NE E E E Wind char GN GN GN GN LT LT LT LT Avg clouds OV OV OV B2 B2 B2 B2 B1 B1 SC SC B1 SC SC B1 B1 PoP 12hr 70 60 30 5 0 5 10 20 Rain shwrs C L L C C S S Tstms S $$ IAZ039-182100- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 1153 AM CDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 72 65 77 59 65 Temp 67 70 71 68 68 67 67 72 75 75 72 67 65 63 60 63 63 65 63 Dewpt 64 66 69 68 68 67 67 70 71 71 68 66 65 63 60 63 61 59 57 RH 90 87 93100100100100 93 87 87 87 97100100100100 93 81 81 Wind dir SE SE SE SE SE SE S S SW NW N N N NE NE NE NE NE NE Wind spd 16 13 13 13 11 9 8 8 8 8 9 9 9 11 13 13 16 16 13 Wind gust 26 Clouds B2 B2 B2 OV B2 B2 B2 B2 B2 B2 OV B2 B2 OV OV B2 B2 B2 B2 PoP 12hr 40 80 80 70 60 QPF 12hr 0.05 0.66 0.26 0.84 0.29 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C D C C C L C C L C C L L C C C Tstms S C C S S S S C C S S S Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 52 61 49 61 46 64 49 68 Temp 58 53 59 59 53 50 59 58 51 48 62 61 54 50 64 65 Dewpt 57 53 55 52 53 50 50 49 50 48 51 52 53 50 55 56 PWind dir NE NE NE NE NE NE NE NE Wind char GN BZ GN GN LT LT LT LT Avg clouds B2 B2 B2 B2 B2 B1 B2 B1 SC SC SC SC SC SC B1 SC PoP 12hr 50 50 20 5 0 0 5 10 Rain shwrs C C C C S S Tstms S S $$ IAZ048-182100- Ames-Story IA 41.99N 93.62W Elev. 936 ft 1153 AM CDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 78 68 79 62 67 Temp 69 74 77 74 72 70 69 73 77 78 74 69 68 65 63 64 65 65 64 Dewpt 68 71 75 74 72 70 69 72 73 73 71 69 68 65 63 64 64 64 62 RH 97 90 94100100100100 97 87 85 90100100100100100 97 97 93 Wind dir SE SE SE SE SE S S W W NW N N N N NE NE NE NE NE Wind spd 12 11 11 10 6 6 5 8 8 6 6 6 6 8 9 11 11 12 11 Wind gust 23 21 21 Clouds OV B2 B1 B1 B2 OV B2 OV OV OV B2 B1 B2 OV OV OV OV OV OV PoP 12hr 10 70 60 80 70 QPF 12hr 0 0.34 0.09 0.63 0.31 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C L L C C C C C C C C L L C C C Tstms S C C C S C S S C C S S S S Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 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 56 61 51 61 47 64 51 68 Temp 61 57 58 59 56 53 59 59 52 49 60 61 55 52 63 65 Dewpt 60 57 57 56 56 53 53 53 52 49 53 55 55 52 58 60 PWind dir NE NE NE NE NE E E E Wind char GN GN LT LT LT LT LT LT Avg clouds OV OV OV B2 B2 B2 B2 B2 B1 SC B1 B1 B1 B1 B1 B1 PoP 12hr 60 60 30 5 0 5 10 10 Rain shwrs C L L C C Tstms S S $$ IAZ004-182100- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 1153 AM CDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 69 62 66 55 63 Temp 64 67 69 67 66 64 62 64 66 66 64 61 60 58 56 58 61 63 60 Dewpt 64 66 69 67 66 64 62 64 64 64 63 61 60 58 56 58 58 58 58 RH 100 97100100100100100100 93 93 97100100100100100 90 84 93 Wind dir SE SE E E E N N N N N N N N N NE NE NE NE NE Wind spd 14 12 10 9 6 6 6 8 9 11 12 12 11 12 13 13 14 13 12 Wind gust 25 23 25 Clouds OV OV OV OV B2 OV OV OV OV B2 OV OV B2 B1 OV B2 B2 B2 B2 PoP 12hr 70 70 30 40 40 QPF 12hr 0.12 0.33 0.11 0.17 0.07 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L C S C S S C C C C C C Tstms S C C C S Obvis PF Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 50 57 46 61 44 63 48 67 Temp 56 51 55 56 51 48 59 58 48 46 61 60 52 49 64 64 Dewpt 56 51 52 54 51 48 49 51 48 46 49 54 52 49 55 59 PWind dir NE NE NE E E SE SE S Wind char GN GN LT LT LT LT LT LT Avg clouds B2 B2 B2 B2 B2 B1 B1 B1 SC SC SC B1 SC SC B1 SC PoP 12hr 50 50 10 0 0 5 20 20 Rain shwrs C C C C S S S $$ IAZ035-182100- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 1153 AM CDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 76 66 75 59 65 Temp 68 72 75 72 70 69 67 70 73 73 69 66 65 63 60 62 63 65 62 Dewpt 67 70 75 72 70 69 67 70 71 71 68 66 65 63 60 62 62 61 61 RH 97 93100100100100100100 93 93 97100100100100100 97 87 97 Wind dir SE SE SE SE SE S NW NW NW N N N N N NE NE NE NE NE Wind spd 14 12 10 8 5 5 4 5 5 6 8 8 8 9 10 10 12 11 10 Wind gust 25 23 Clouds OV B2 B2 B2 B2 OV OV OV B2 OV OV OV OV OV OV OV OV B2 OV PoP 12hr 30 70 50 60 50 QPF 12hr 0.04 0.54 0.10 0.45 0.15 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C L C C S C S C C C C C C C C C Tstms S C C C C S S S Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 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 52 59 49 62 45 64 49 69 Temp 59 53 56 57 54 50 59 58 51 47 60 60 54 50 64 65 Dewpt 59 53 55 56 54 50 51 53 51 47 51 55 54 50 57 61 PWind dir NE NE NE NE E E E SE Wind char GN GN LT LT LT LT LT LT Avg clouds OV OV OV B2 B2 B2 B2 B1 B1 B1 B1 B1 SC B1 B2 B1 PoP 12hr 60 60 20 5 0 5 10 10 Rain shwrs C L L C S S Tstms S S $$ IAZ094-182100- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 1153 AM CDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 70 83 64 71 Temp 79 85 80 76 74 72 71 75 81 82 78 72 70 68 65 69 70 69 66 Dewpt 74 75 77 73 71 70 69 72 73 74 75 72 70 68 65 69 70 68 66 RH 85 72 91 90 90 93 93 90 77 77 91100100100100100100 97100 Wind dir SE S S S S SW SW SW SW SW N N N N N N N NE NE Wind spd 9 9 6 9 9 8 9 9 9 6 3 5 5 6 5 6 8 9 10 Clouds FW SC SC SC SC B1 B2 B2 B2 B1 B1 B2 B2 B2 OV OV B2 B2 OV PoP 12hr 5 20 50 90 50 QPF 12hr 0 0.05 0.01 0.59 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S C C D C C C C C C Tstms S C S S C C C Heat index 94 87 86 87 Max heat 85 94 88 90 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 57 62 52 60 47 62 51 67 Temp 63 58 61 60 57 53 58 58 53 49 60 60 55 52 64 64 Dewpt 63 58 61 59 57 53 57 57 53 49 56 58 55 52 61 62 PWind dir NE NE NE NE NE E E E Wind char GN GN GN GN LT LT LT LT Avg clouds OV OV OV B2 B2 B2 B2 B1 B1 SC B1 SC B1 B1 B1 B1 PoP 12hr 60 50 20 10 0 5 10 20 Rain shwrs C L C C S S $$ IAZ017-182100- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 1153 AM CDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 67 63 70 54 63 Temp 64 66 67 66 66 65 64 67 69 69 65 63 62 60 56 60 61 63 59 Dewpt 63 64 67 66 66 65 64 67 67 67 64 63 62 60 56 60 58 57 56 RH 97 93100100100100100100 93 93 97100100100100100 90 81 90 Wind dir SE SE SE SE SE SE SE NW NW N N N NE NE NE NE NE E NE Wind spd 14 13 11 10 8 6 5 5 6 8 8 8 8 10 11 13 14 13 11 Wind gust 27 25 25 24 Clouds B2 B2 OV B2 OV B2 OV OV OV B2 OV OV OV OV B2 B2 B2 B2 B2 PoP 12hr 50 80 50 50 40 QPF 12hr 0.07 0.84 0.15 0.48 0.07 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C L L C C C C S C C C S C C S S C Tstms S C C C C C S S S Obvis PF Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 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 49 58 45 60 42 62 46 65 Temp 56 50 56 56 51 47 58 56 48 45 60 58 52 48 63 62 Dewpt 55 50 52 52 51 47 48 48 48 45 49 51 51 48 54 56 PWind dir NE NE NE NE E E E SE Wind char GN GN LT LT LT LT LT LT Avg clouds B2 OV B2 B2 B2 B2 B1 B1 SC SC SC SC SC B1 B1 SC PoP 12hr 50 40 20 5 0 0 10 10 Rain shwrs C C C C S Tstms S S $$ IAZ049-182100- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 1153 AM CDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 66 79 60 66 Temp 67 71 73 71 70 68 68 73 77 78 74 68 66 64 61 64 63 65 63 Dewpt 66 68 72 71 70 68 68 71 72 72 70 68 66 64 61 64 62 62 59 RH 97 90 97100100100100 93 85 82 87100100100100100 97 90 87 Wind dir SE SE SE SE SE SE S SW W NW N N N N NE NE NE NE NE Wind spd 14 13 11 11 8 6 6 6 6 6 6 8 6 8 9 11 12 13 13 Clouds B2 B2 B1 B2 B2 B2 B2 B2 B2 B2 OV B1 OV OV OV OV OV OV OV PoP 12hr 10 80 70 80 70 QPF 12hr 0.02 0.40 0.12 0.77 0.33 Snow 12hr 00-00 00-00 00-00 Rain shwrs C D C L C C L S L C C L L C C C Tstms C C S S C S C S C S S S S S S Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 53 61 49 61 45 64 49 68 Temp 59 54 58 59 54 50 58 58 50 47 60 61 53 50 62 65 Dewpt 58 54 55 54 54 50 51 50 50 47 51 53 53 50 55 57 PWind dir NE NE NE NE NE E NE E Wind char GN GN GN GN LT LT LT LT Avg clouds OV B2 OV B2 B2 B2 B2 B1 B1 SC SC B1 SC SC SC B1 PoP 12hr 60 60 30 10 0 5 5 10 Rain shwrs C L L C C S Tstms S S $$ IAZ086-182100- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 1153 AM CDT Fri Sep 18 2026 Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 70 84 65 72 Temp 72 77 79 75 73 72 71 76 81 83 79 73 71 69 66 70 70 69 67 Dewpt 70 72 78 75 73 72 71 74 76 76 77 73 71 69 66 70 70 68 67 RH 93 85 97100100100100 94 85 80 94100100100100100100 97100 Wind dir SE SE SE SE SE SE SE S SW W N N N N NE NE NE NE NE Wind spd 11 10 8 9 8 6 6 6 8 6 3 5 4 5 5 6 9 10 11 Clouds B2 SC SC SC B1 B1 B2 B2 B2 B1 B1 OV B2 OV OV OV OV B2 B2 PoP 12hr 10 50 50 90 80 QPF 12hr 0.02 0.12 0.01 0.60 0.16 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C L L L C D D L L C Tstms C S S S S S C C C S S S S S Heat index 87 90 Max heat 90 87 92 Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26 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 58 63 53 62 48 64 51 69 Temp 63 59 61 61 58 55 59 60 54 50 62 62 56 52 65 66 Dewpt 63 59 61 60 58 54 57 56 53 50 56 58 56 52 60 61 PWind dir NE NE NE NE NE NE NE NE Wind char GN GN GN GN LT LT LT LT Avg clouds OV OV OV B2 B2 B2 B2 B2 B1 SC SC B1 SC SC B1 SC PoP 12hr 60 70 30 10 0 5 5 10 Rain shwrs C L L C C S Tstms S S $$