Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
557 FOUS53 KDMX 132253 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 552 PM CDT Sun Sep 13 2026 IAZ060-140900- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 552 PM CDT Sun Sep 13 2026 Date 09/13/26 Mon 09/14/26 Tue 09/15/26 Wed 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 58 78 68 73 60 Temp 59 59 59 58 58 61 67 76 75 74 71 70 69 68 69 72 67 64 62 61 60 Dewpt 55 55 55 54 53 56 62 69 72 72 71 70 69 67 64 65 65 64 62 61 60 RH 87 87 87 86 83 84 84 79 90 93100100100 97 84 79 93100100100100 Wind dir E E E E SE SE SE SE SE S SW W W N N N N NE NE NE E Wind spd 4 4 5 9 12 14 17 18 16 16 12 9 5 5 6 4 3 3 4 6 9 Wind gust 25 29 31 28 26 Clouds B2 B1 SC B1 B2 B1 B2 B1 B1 B1 B2 B2 B2 OV B2 OV B2 B2 B2 OV OV PoP 12hr 40 70 90 90 70 QPF 12hr 0.02 0.14 1.15 0.44 1.09 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L C D D D D L L C C L L D Tstms S C C C C C S S S C Date 09/16 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 72 66 75 65 77 65 77 60 72 Temp 67 68 67 66 72 72 66 65 73 73 67 65 73 72 64 60 69 68 Dewpt 66 68 67 66 71 71 66 65 70 70 67 64 67 67 64 60 64 65 PWind dir E E NE E SE S W N NE Wind char LT LT LT LT GN GN GN LT LT Avg clouds OV B2 B2 B2 B2 B2 B1 B1 B2 B1 SC SC B1 B1 B1 B1 B1 B1 PoP 12hr 90 80 60 50 60 60 50 40 30 Rain shwrs D L L D L S S C L C L L C C C C C C Tstms C S C C S S S S S S $$ IAZ039-140900- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 552 PM CDT Sun Sep 13 2026 Date 09/13/26 Mon 09/14/26 Tue 09/15/26 Wed CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 51 70 65 73 55 Temp 61 56 53 51 51 60 62 67 67 67 67 68 67 68 71 73 68 61 58 57 55 Dewpt 53 52 51 49 48 52 55 59 61 66 67 68 67 65 60 58 59 59 57 55 54 RH 75 86 93 93 89 75 78 75 81 97100100100 90 68 59 73 93 96 93 96 Wind dir SW E E E SE SE SE SE SE S SW SW SW NW NW NW NW N NE NE E Wind spd 3 2 2 4 9 14 19 21 19 18 14 11 5 8 8 6 3 3 4 5 6 Wind gust 31 35 29 Clouds FW FW SC SC B1 B2 B2 B2 B1 B2 B2 OV B2 B2 B2 B2 B1 B1 B1 B2 OV PoP 12hr 5 80 90 60 20 QPF 12hr 0 0.15 1.34 0.20 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs S L L C L D L L L S S L Tstms C S C C S Date 09/16 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 68 61 73 60 73 61 75 57 71 Temp 64 66 64 62 72 70 64 61 71 71 64 61 73 71 61 57 69 67 Dewpt 60 64 64 62 67 66 63 61 65 66 64 61 64 63 60 57 60 60 PWind dir E E E E SE S W N NE Wind char GN LT LT LT GN GN GN GN GN Avg clouds OV OV B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC B1 SC PoP 12hr 80 70 40 50 60 70 50 30 30 Rain shwrs L D L L C S S C L L L L C C S C C S Tstms C C C S S S S $$ IAZ048-140900- Ames-Story IA 41.99N 93.62W Elev. 936 ft 552 PM CDT Sun Sep 13 2026 Date 09/13/26 Mon 09/14/26 Tue 09/15/26 Wed 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 55 75 66 73 58 Temp 60 57 55 55 56 59 65 72 73 71 69 69 67 67 70 73 68 62 60 59 58 Dewpt 55 55 54 53 52 55 61 67 70 71 69 69 67 66 61 61 63 62 60 58 58 RH 84 93 96 93 86 87 87 84 90100100100100 97 73 66 84100100 96100 Wind dir SE E E E SE SE SE SE SE S SW W W NW N N N N NE E E Wind spd 1 3 4 6 12 14 18 18 16 14 9 5 4 5 6 4 2 3 3 5 8 Wind gust 26 32 32 27 Clouds B1 SC B1 B1 B2 B2 OV B2 B2 B2 OV B2 OV OV OV B2 B2 B1 B2 B2 OV PoP 12hr 40 80 90 70 50 QPF 12hr 0.02 0.18 1.66 0.21 0.35 Snow 12hr 00-00 00-00 00-00 Rain shwrs L L C S L D L L L C C S S C C D Tstms C C C S L C S C Date 09/16 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 70 63 74 63 75 63 76 59 71 Temp 64 67 65 64 71 70 65 63 72 71 66 63 73 70 62 59 69 66 Dewpt 64 67 65 64 70 70 65 63 69 69 66 63 67 66 62 59 63 64 PWind dir E E NE E SE S NW N NE Wind char LT LT LT LT GN GN GN LT LT Avg clouds OV OV OV B2 B2 B2 B1 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 PoP 12hr 90 70 50 60 60 70 50 30 30 Rain shwrs D L L L C S C L L C L L C C C C C S Tstms S C C C S S S S S S $$ IAZ004-140900- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 552 PM CDT Sun Sep 13 2026 Date 09/13/26 Mon 09/14/26 Tue 09/15/26 Wed CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 51 68 56 71 51 Temp 64 56 52 51 53 57 59 65 67 66 62 58 56 62 68 71 66 55 53 52 51 Dewpt 48 49 48 49 48 54 59 65 67 66 62 58 52 52 53 55 57 54 52 50 49 RH 56 77 86 93 83 90100100100100100100 86 70 59 57 73 96 96 93 93 Wind dir SE SE SE SE SE SE S S S SW W W W NW NW NW N NE NE E E Wind spd 3 3 4 8 16 21 23 21 18 14 8 6 8 11 8 5 2 2 3 4 5 Wind gust 34 41 37 31 Clouds FW FW FW SC B2 B2 OV B2 OV B2 SC B1 B1 B1 SC SC SC SC SC SC B1 PoP 12hr 30 90 80 0 0 QPF 12hr 0 0.58 0.32 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L D L C D C S Tstms C C C C C C Date 09/16 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 66 56 71 57 71 57 71 53 68 Temp 64 62 60 58 69 68 59 58 68 69 61 58 68 67 57 54 66 64 Dewpt 58 62 60 58 64 65 59 58 65 66 61 58 63 63 57 53 59 61 PWind dir E E E SE SE S N N NE Wind char GN LT LT LT GN GN GN LT LT Avg clouds B1 B2 B2 B2 B2 B1 B1 B1 B2 B2 B1 B1 B1 B1 SC SC SC SC PoP 12hr 60 30 20 50 70 60 30 20 20 Rain shwrs S L C C S S C C L L L C C S S S Tstms S S S $$ IAZ035-140900- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 552 PM CDT Sun Sep 13 2026 Date 09/13/26 Mon 09/14/26 Tue 09/15/26 Wed 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 53 73 62 73 54 Temp 63 57 54 53 55 58 62 69 70 69 67 65 63 65 70 73 67 58 56 54 55 Dewpt 54 53 52 51 50 55 61 68 70 69 67 65 63 60 57 58 61 58 56 54 54 RH 72 86 93 93 83 90 97 97100100100100100 84 63 59 81100100100 96 Wind dir SE E E E SE SE SE SE S S SW W W NW N N N NE NE E E Wind spd 2 2 3 6 12 17 20 18 16 14 6 4 3 6 5 3 1 2 3 4 5 Wind gust 28 33 29 28 Clouds SC FW SC B1 OV B2 B2 B2 B2 OV B2 B2 B2 OV B2 B1 B1 SC B1 B2 OV PoP 12hr 40 90 80 20 10 QPF 12hr 0.06 0.49 1.93 0.02 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs L D L C L D C C S S S S L Tstms C C C C L C C S S Date 09/16 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 68 60 72 60 73 60 73 56 70 Temp 63 65 63 62 69 68 62 61 70 70 64 61 70 69 60 57 67 65 Dewpt 62 65 63 62 68 68 62 61 68 69 64 61 66 66 60 57 62 64 PWind dir E E E E SE S NW N NE Wind char LT LT LT LT GN GN GN LT LT Avg clouds OV OV B2 B2 OV B2 B1 B2 OV B1 B1 B1 B2 B1 B1 B1 B1 SC PoP 12hr 70 60 40 60 70 70 40 30 20 Rain shwrs L L C L C S C L L L L L C S S C S S Tstms S C S S S S C S S S $$ IAZ094-140900- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 552 PM CDT Sun Sep 13 2026 Date 09/13/26 Mon 09/14/26 Tue 09/15/26 Wed CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 59 83 68 74 61 Temp 61 61 61 60 59 62 72 81 81 78 75 71 69 72 71 69 66 65 65 63 62 Dewpt 54 56 55 55 56 60 67 73 74 73 72 71 69 70 69 69 66 65 65 63 62 RH 78 84 81 84 90 93 84 77 79 85 90100100 93 93100100100100100100 Wind dir NE E E E SE SE SE S S S S SW NW N N N NE NE NE NE E Wind spd 8 6 8 9 12 14 17 18 16 13 12 8 4 5 8 8 6 6 6 9 9 Wind gust 23 25 27 29 28 25 Clouds OV B2 B2 OV OV B2 SC FW B1 SC B1 OV OV OV B2 B2 OV OV OV OV OV PoP 12hr 50 60 70 100 100 QPF 12hr 0.05 0.12 0.26 0.45 1.70 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C L D D D D L L D D D Tstms C C S C S S S S S C C C C Heat index 86 86 Max heat 90 85 Date 09/16 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 76 66 76 65 77 64 75 60 70 Temp 71 71 69 67 72 73 68 65 74 73 68 65 72 71 64 61 67 67 Dewpt 70 71 69 67 72 73 68 65 72 72 68 65 69 69 64 60 66 66 PWind dir E NE NE E SE S W N NE Wind char LT LT LT LT GN GN GN LT LT Avg clouds OV B2 B2 B2 B2 B1 B1 B1 B2 B1 SC SC B1 B1 B1 B1 B1 B1 PoP 12hr 90 80 60 40 50 60 40 40 30 Rain shwrs D C L D L S S C C C C L C C C C C C Tstms C S C S S S S S S S S S S S $$ IAZ017-140900- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 552 PM CDT Sun Sep 13 2026 Date 09/13/26 Mon 09/14/26 Tue 09/15/26 Wed 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 49 68 60 70 51 Temp 63 56 51 49 49 58 59 63 65 65 66 63 60 63 68 70 65 56 53 52 51 Dewpt 47 50 49 48 47 51 57 62 64 65 66 63 60 57 56 56 57 56 53 51 50 RH 56 80 93 96 93 77 93 97 97100100100100 81 65 61 75100100 96 96 Wind dir SW S SE E SE SE SE SE S S SW W W NW NW NW NW N NE NE E Wind spd 3 1 2 4 10 18 23 21 18 17 10 5 4 10 8 6 2 1 3 4 5 Wind gust 29 37 37 33 Clouds FW FW SC SC B1 B2 B2 OV B2 OV OV OV B2 B2 B2 SC SC SC B1 B1 B2 PoP 12hr 10 90 90 10 5 QPF 12hr 0 0.50 0.93 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L D L C D C C C Tstms S C C C C S Date 09/16 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 66 57 71 57 70 58 71 54 68 Temp 63 63 61 59 68 68 60 58 68 67 61 59 69 67 58 55 67 64 Dewpt 59 62 61 59 65 65 60 58 64 65 61 59 63 62 58 55 59 60 PWind dir E E E E SE S NW N NE Wind char GN LT LT LT GN GN GN LT LT Avg clouds B2 B2 B2 B2 B2 B1 B1 B1 B2 B2 B1 B2 B2 B1 SC B1 B1 SC PoP 12hr 70 60 30 50 70 70 40 20 20 Rain shwrs C L L L C S C C L L L L C S S S S S Tstms S S S $$ IAZ049-140900- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 552 PM CDT Sun Sep 13 2026 Date 09/13/26 Mon 09/14/26 Tue 09/15/26 Wed CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 52 74 65 74 56 Temp 61 56 53 52 53 59 63 71 71 68 68 68 67 68 70 73 68 61 59 57 56 Dewpt 54 53 52 51 49 52 57 62 65 68 68 68 67 66 61 60 61 61 58 57 56 RH 78 90 96 96 86 78 81 73 81100100100100 93 73 64 78100 96100100 Wind dir SE E E E SE SE SE SE SE S SW SW W NW NW NW N N NE NE NE Wind spd 1 2 3 5 10 13 18 19 17 14 11 8 4 5 4 3 2 3 4 5 8 Wind gust 28 32 28 Clouds SC FW SC SC B1 B2 B2 B2 B1 B2 OV B2 OV OV OV B2 B2 B1 B2 B2 OV PoP 12hr 30 70 100 70 40 QPF 12hr 0 0.11 1.58 0.26 0.30 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C S L D D L L C C S S C C D Tstms S S C S C C S S S Date 09/16 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 70 61 74 61 75 61 76 57 72 Temp 64 66 64 63 70 70 63 61 71 71 64 61 72 71 61 58 68 66 Dewpt 62 66 64 63 68 68 63 61 67 67 64 61 65 64 61 57 61 62 PWind dir E E NE E SE S W N NE Wind char LT LT LT LT GN GN GN LT LT Avg clouds OV OV B2 B2 B2 B2 B1 B1 B2 B2 B1 SC B1 B1 B1 SC B1 B1 PoP 12hr 80 70 50 50 60 60 50 30 30 Rain shwrs D L L L C S S C L C L L C C C C C S Tstms S C C C S S S S $$ IAZ086-140900- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 552 PM CDT Sun Sep 13 2026 Date 09/13/26 Mon 09/14/26 Tue 09/15/26 Wed 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 58 78 70 77 62 Temp 60 60 59 58 59 62 67 75 76 73 74 72 71 75 74 72 69 66 65 63 62 Dewpt 55 57 55 54 54 57 61 67 70 71 72 72 71 73 70 69 69 66 65 63 62 RH 84 90 87 86 83 84 81 76 82 93 93100100 94 87 90100100100100100 Wind dir E NE E E E SE SE SE SE S S SW SW W NW N N NE NE NE E Wind spd 3 4 5 8 10 13 16 17 14 13 12 10 5 5 6 5 4 4 4 6 8 Wind gust 24 27 28 25 25 23 20 Clouds B2 B2 B1 SC B2 B2 B1 SC SC SC SC B2 OV OV B2 B2 B2 B2 OV OV OV PoP 12hr 30 50 80 90 90 QPF 12hr 0.01 0.04 0.34 0.32 0.98 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L D D D D D L L D D D Tstms S S C C S S S S S C C S Date 09/16 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 Sun 09/20/26 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 76 66 78 65 78 65 79 62 73 Temp 69 72 69 68 74 75 68 66 74 74 68 65 75 74 66 62 70 70 Dewpt 69 72 69 68 74 75 68 66 72 73 68 65 70 71 65 62 66 68 PWind dir E NE NE E SE S W N NE Wind char LT LT LT LT LT LT GN LT LT Avg clouds OV B2 B1 B2 B2 B2 B1 B1 B2 B1 SC SC B1 B1 B1 B1 B1 B1 PoP 12hr 90 70 60 40 50 50 50 40 30 Rain shwrs D C C L L S S C C C C C C C C C C C Tstms S S C S S S S S S S $$