Point Forecast Matrices
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
929 FOUS53 KDMX 161257 PFMDMX Point Forecast Matrices National Weather Service Des Moines IA 757 AM CDT Sun Aug 16 2026 IAZ060-162100- Des Moines-Polk IA 41.54N 93.65W Elev. 924 ft 757 AM CDT Sun Aug 16 2026 Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 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 79 63 82 67 82 Temp 74 77 78 77 71 68 65 63 72 79 82 80 73 71 69 68 74 79 82 77 Dewpt 71 72 70 70 67 66 64 63 66 67 67 70 67 67 66 66 70 72 74 73 RH 90 85 76 79 87 93 97100 81 67 61 72 81 87 90 93 87 79 77 87 Wind dir NW N NW N N NW NW W W W W S S S SW SW W W W N Wind spd 9 9 10 6 3 3 3 2 2 4 3 2 3 4 5 4 4 5 5 5 Clouds B2 B2 B2 SC FW FW SC SC SC FW FW FW SC SC B1 B1 B1 B1 B1 B2 PoP 12hr 10 0 0 10 70 QPF 12hr 0 0 0 0 0.23 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C L L L Tstms S S C C Heat index 88 Max heat 84 82 87 84 89 Date Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 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 77 61 78 62 81 64 81 Temp 69 66 74 74 66 62 75 74 66 63 78 78 68 65 78 77 Dewpt 69 66 68 68 64 62 66 68 65 63 70 72 67 65 70 70 PWind dir N NE E E SE W W NW Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B2 B1 SC SC SC B1 SC SC SC SC SC SC SC SC FW PoP 12hr 70 10 5 10 20 20 20 10 Rain shwrs L C S S S S Tstms C S S S $$ IAZ039-162100- Waterloo/Cedar Falls-Black Hawk IA 42.55N 92.40W Elev. 865 ft 757 AM CDT Sun Aug 16 2026 Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 61 80 66 80 Temp 73 77 78 75 68 66 63 62 71 77 80 78 70 69 68 66 73 77 79 74 Dewpt 71 70 68 67 65 64 62 61 65 65 65 68 67 66 66 66 69 71 71 69 RH 93 79 71 76 90 93 97 97 81 67 60 71 90 90 93100 87 82 77 84 Wind dir NW NW NW NW NW NW NW NW NW W W SW S SW SW SW W W W NW Wind spd 11 12 12 9 5 4 3 3 3 5 6 3 4 5 5 4 6 6 6 5 Clouds B1 B1 B1 SC FW FW FW SC FW FW CL FW B1 SC B1 B1 B1 B1 B1 B1 PoP 12hr 0 0 5 30 60 QPF 12hr 0 0 0 0 0.20 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S L L C Tstms S S C C Obvis PF Date Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 62 75 57 76 60 78 62 78 Temp 67 62 72 72 62 59 74 73 64 61 76 75 66 62 76 75 Dewpt 66 62 63 63 60 58 63 64 63 61 68 69 65 62 67 67 PWind dir N NE E S S SW SW NW Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B2 B1 SC SC FW SC SC SC SC SC FW FW SC SC FW PoP 12hr 50 5 5 10 20 20 20 10 Rain shwrs C C S S S S Tstms C S S S $$ IAZ048-162100- Ames-Story IA 41.99N 93.62W Elev. 936 ft 757 AM CDT Sun Aug 16 2026 Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 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 79 61 82 66 81 Temp 73 76 78 76 68 66 63 62 72 78 81 79 71 70 68 67 73 78 80 75 Dewpt 70 70 69 69 67 65 63 62 66 67 68 71 69 68 67 67 70 72 74 72 RH 90 82 74 79 97 97100100 81 69 65 77 93 93 97100 90 82 82 90 Wind dir NW N N N NW NW NW NW W W W S S S SW W W W W N Wind spd 10 10 10 5 2 2 2 1 2 4 4 3 3 4 4 3 4 5 4 4 Clouds B2 B1 B1 SC FW FW FW SC FW CL FW FW B1 B1 B1 B1 B1 B2 B2 B2 PoP 12hr 5 0 5 30 80 QPF 12hr 0 0 0 0 0.28 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C D D L Tstms S S S C C Date Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 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 59 77 61 80 63 80 Temp 68 64 74 74 63 61 74 74 65 62 77 76 67 63 77 76 Dewpt 68 64 67 67 63 60 66 68 65 62 71 72 67 63 69 70 PWind dir N NE E E S SW W NW Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B2 B1 SC SC SC B1 SC SC SC SC FW SC SC SC FW PoP 12hr 60 10 5 20 10 20 20 10 Rain shwrs L C S S S S Tstms C S S S $$ IAZ004-162100- Estherville-Emmet IA 43.40N 94.75W Elev. 1315 ft 757 AM CDT Sun Aug 16 2026 Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 77 57 80 63 77 Temp 68 75 76 75 65 61 59 58 71 78 79 77 68 67 65 63 70 74 76 73 Dewpt 64 65 64 66 62 59 57 56 63 64 66 69 67 65 64 63 68 68 68 68 RH 87 71 66 74 90 93 93 93 76 62 64 76 97 93 97100 93 82 76 84 Wind dir N N N N N NW W W SW SW SW SW SW SW W W N N NE N Wind spd 10 12 11 5 3 3 3 3 4 8 9 8 9 9 6 4 4 4 5 5 Clouds B1 SC SC FW CL FW FW FW FW FW FW SC B1 B1 SC B1 B1 B1 B1 B1 PoP 12hr 0 0 40 50 60 QPF 12hr 0 0 0 0.16 0.14 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C L L C Tstms C C C C S Date Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 57 75 56 76 59 79 59 78 Temp 62 57 72 72 59 57 74 74 63 60 77 76 64 60 76 75 Dewpt 61 57 61 63 59 57 64 67 62 60 69 70 63 59 65 67 PWind dir N E S S SW SW W W Wind char LT LT LT LT GN GN LT LT Avg clouds B1 B1 SC SC SC SC B1 SC SC FW SC FW FW FW SC FW PoP 12hr 40 5 10 20 30 20 10 10 Rain shwrs C S S C S S Tstms S S S S $$ IAZ035-162100- Fort Dodge-Webster IA 42.55N 94.18W Elev. 1165 ft 757 AM CDT Sun Aug 16 2026 Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 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 79 59 82 64 80 Temp 70 75 77 76 67 63 61 60 70 77 80 78 71 69 66 65 71 76 79 74 Dewpt 68 68 68 69 65 63 61 60 66 67 69 71 68 67 66 65 70 72 73 71 RH 93 79 74 79 93100100100 87 71 69 79 90 93100100 97 87 82 90 Wind dir N N N N N NW W W SW SW SW S SW SW SW W NW W W N Wind spd 10 10 9 3 1 1 1 0 1 3 4 3 4 5 4 3 3 3 3 3 Clouds B1 B1 SC FW CL FW SC SC FW FW FW SC B1 B1 B1 B1 B1 B2 B2 B2 PoP 12hr 0 0 30 40 80 QPF 12hr 0 0 0 0 0.37 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C D D C Tstms S C S S C C S Date Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 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 76 57 77 59 80 60 80 Temp 65 61 73 73 61 59 74 73 63 60 76 76 65 61 76 75 Dewpt 65 61 65 67 61 59 66 69 63 60 71 73 65 61 69 70 PWind dir NE NE SE S S SW W NW Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B2 B1 SC SC SC B1 SC SC SC SC FW SC SC SC FW PoP 12hr 50 10 5 20 20 20 20 10 Rain shwrs C C S S S S S S Tstms S S S S S S $$ IAZ094-162100- Lamoni-Decatur IA 40.63N 93.90W Elev. 1125 ft 757 AM CDT Sun Aug 16 2026 Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 63 81 66 84 Temp 75 79 79 76 70 67 65 63 73 79 81 79 72 69 68 67 75 81 83 80 Dewpt 73 73 72 70 69 67 65 63 66 66 67 69 67 66 65 65 69 71 72 73 RH 94 82 79 82 97100100100 79 64 63 72 84 90 90 93 82 72 70 79 Wind dir N N N N N NW NW NW NW NW W S S S SW SW SW SW S E Wind spd 9 8 9 6 4 3 3 2 2 2 2 1 3 3 4 4 5 6 5 4 Clouds B2 B2 B2 B1 SC FW FW SC SC FW FW FW SC SC B1 B1 SC SC SC B1 PoP 12hr 100 5 0 5 50 QPF 12hr 0.13 0 0 0 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs D C S C C C C D Tstms S S S S S S L Heat index 89 Max heat 84 85 85 90 Date Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 66 78 62 79 63 81 64 81 Temp 71 67 76 75 66 63 76 75 66 63 79 78 68 65 79 78 Dewpt 71 67 69 69 66 63 66 68 65 63 69 71 68 65 69 70 PWind dir NE NE E E E NW NW NW Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B2 B2 B1 SC B1 B1 SC SC SC SC SC FW SC SC SC PoP 12hr 80 20 10 10 10 10 20 10 Rain shwrs D L S S Tstms L C S S $$ IAZ017-162100- Mason City-Cerro Gordo IA 43.16N 93.33W Elev. 1189 ft 757 AM CDT Sun Aug 16 2026 Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 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 77 57 80 64 79 Temp 70 75 75 75 66 63 59 58 70 77 78 77 70 68 66 65 72 78 76 72 Dewpt 67 66 65 66 63 61 59 58 63 63 64 68 66 66 65 65 68 69 68 67 RH 90 74 71 74 90 93100100 78 62 62 74 87 93 97100 87 74 76 84 Wind dir NW N NW NW NW NW W W W W SW SW SW SW SW W NW NW NW N Wind spd 12 12 11 6 3 3 3 1 2 5 5 4 5 6 5 4 5 5 5 5 Clouds B1 B1 SC FW CL FW FW FW CL FW FW SC B1 B1 B2 B2 B2 B1 B1 B1 PoP 12hr 0 0 10 30 50 QPF 12hr 0 0 0 0 0.18 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C C C Tstms S S C C C Obvis PF Date Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 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 75 55 77 59 79 59 79 Temp 63 59 72 72 60 57 74 73 63 60 76 76 64 60 76 75 Dewpt 62 59 60 61 58 57 62 64 62 60 68 69 63 60 65 66 PWind dir NW NE S S S SW W NW Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B2 SC SC SC SC SC SC SC SC SC FW SC SC SC FW PoP 12hr 40 5 5 10 20 30 20 10 Rain shwrs C C S C S S Tstms C S S S $$ IAZ049-162100- Marshalltown-Marshall IA 42.11N 92.91W Elev. 972 ft 757 AM CDT Sun Aug 16 2026 Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 59 81 64 81 Temp 73 77 77 75 67 64 61 60 71 77 80 78 69 68 66 65 72 77 80 75 Dewpt 71 70 69 68 65 63 61 60 65 65 66 69 66 65 65 65 69 71 72 70 RH 93 79 76 79 93 97100100 81 67 62 74 90 90 97100 90 82 77 84 Wind dir NW NW NW NW N NW NW NW NW W W SW S S SW SW W W W NW Wind spd 11 10 10 6 3 3 3 2 1 3 4 2 3 4 5 4 5 4 4 5 Clouds B2 B2 B1 SC FW FW FW FW FW FW FW FW SC SC B1 B1 B1 B1 B2 B2 PoP 12hr 5 0 5 30 70 QPF 12hr 0 0 0 0.02 0.23 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C L L L Tstms S S S C C Date Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 61 77 57 77 59 80 61 79 Temp 66 62 73 72 61 58 74 73 63 60 76 75 66 62 76 74 Dewpt 66 62 65 65 60 58 64 65 62 60 68 70 65 62 68 67 PWind dir N NE E SE S SW W NW Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B2 B1 SC SC SC B1 SC SC SC SC SC FW SC SC SC PoP 12hr 60 10 5 10 20 20 20 10 Rain shwrs L C S S S S Tstms C S S S $$ IAZ086-162100- Ottumwa-Wapello IA 41.11N 92.45W Elev. 836 ft 757 AM CDT Sun Aug 16 2026 Date Sun 08/16/26 Mon 08/17/26 Tue 08/18/26 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 63 83 66 84 Temp 77 80 80 78 71 68 65 64 73 79 81 81 71 69 68 67 75 80 83 80 Dewpt 74 75 74 72 70 67 65 63 67 67 67 70 67 66 66 66 70 72 73 74 RH 90 85 82 82 97 97100 97 81 67 63 69 87 90 93 97 84 77 72 82 Wind dir NW NW NW NW N NW NW NW NW NW NW W S S S SW SW W W N Wind spd 9 9 11 8 5 4 4 3 3 3 3 0 2 3 4 4 5 5 5 4 Clouds B2 B2 B2 B1 FW SC SC SC SC FW CL CL FW SC SC B1 SC B1 SC B1 PoP 12hr 30 5 0 5 40 QPF 12hr 0 0 0 0 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S S C C D Tstms S S S S S C Obvis PF Heat index 85 85 89 Max heat 87 89 83 86 86 91 Date Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 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 66 79 61 79 62 82 64 82 Temp 70 67 76 76 66 63 76 76 65 63 78 78 68 65 78 78 Dewpt 70 67 69 69 65 63 66 69 65 63 70 72 68 65 70 71 PWind dir NE NE NE E SE NW S NW Wind char LT LT LT LT LT LT LT LT Avg clouds B2 B2 B2 SC SC SC SC SC SC SC SC SC SC FW SC FW PoP 12hr 80 20 5 20 20 10 20 10 Rain shwrs D L S S S S Tstms C S S S $$