Point Forecast Matrices
Issued by NWS Sioux Falls, SD
Issued by NWS Sioux Falls, SD
404 FOUS53 KFSD 171638 PFMFSD Point Forecast Matrices National Weather Service Sioux Falls SD 1138 AM CDT Mon Aug 17 2026 IAZ012-172100- SIOUX CENTER-SIOUX IA 43.08N 96.18W Elev. 1446 ft 1138 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 62 77 58 75 Temp 78 81 78 70 67 64 63 70 75 76 75 67 64 60 59 68 74 75 71 Dewpt 64 66 68 67 65 64 63 70 72 72 72 67 64 60 59 68 69 69 70 RH 62 60 71 90 93100100100 90 87 90100100100100100 84 82 97 Wind dir SW SW SW S S SW W S W NW N NE NE E E SE S SW S Wind spd 9 10 8 6 5 3 3 3 3 2 2 2 2 2 1 2 2 2 2 Clouds SC SC SC SC SC B1 B2 FW FW SC SC B1 SC B2 B2 SC SC B1 SC PoP 12hr 5 40 40 10 50 QPF 12hr 0 0.10 0.11 0 0.07 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C S C C Tstms S S S C S C C Heat index 83 Max heat 84 Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 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 77 60 80 58 76 56 75 Temp 63 58 75 75 66 61 77 77 64 58 74 73 62 57 72 72 Dewpt 63 58 72 74 66 61 72 73 62 57 64 66 58 56 66 68 PWind dir S S S SW NE N E SE Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC FW FW SC SC FW FW FW SC FW SC B1 B1 B1 PoP 12hr 10 10 20 10 10 5 10 10 Rain shwrs S S Tstms S S $$ IAZ031-172100- SIOUX CITY-WOODBURY IA 42.40N 96.38W Elev. 1210 ft 1138 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 63 79 60 77 Temp 76 81 79 72 69 67 64 71 76 78 77 71 67 63 61 69 75 77 74 Dewpt 64 66 68 67 66 64 64 70 72 73 72 70 67 63 61 68 69 69 69 RH 66 60 69 84 90 90100 97 87 85 85 97100100100 97 82 76 84 Wind dir SW S S S S SE SW SE SW NW W NE NE NE E SE S S SE Wind spd 8 9 8 6 5 4 4 4 4 3 3 2 1 1 1 2 3 2 3 Clouds SC FW SC SC B1 B1 B2 B1 SC SC B1 B2 OV B2 B2 B1 B1 B1 SC PoP 12hr 5 50 60 10 40 QPF 12hr 0 0.20 0.13 0 0.05 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C L C S S C C Tstms S C C C C S S S C Heat index 83 Max heat 85 Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 59 79 61 82 60 77 57 76 Temp 64 60 77 77 67 62 80 80 67 61 75 75 64 58 73 74 Dewpt 64 60 71 72 66 62 73 73 64 59 66 67 60 58 66 68 PWind dir S S S SW NE N E SE Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC FW FW SC SC FW FW FW FW FW FW B1 B1 B1 PoP 12hr 20 5 20 20 20 5 10 20 Rain shwrs S S S S S Tstms S S S S $$ IAZ014-172100- SPENCER-CLAY IA 43.15N 95.18W Elev. 1325 ft 1138 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 62 78 56 77 Temp 75 80 76 68 66 64 63 69 75 77 74 66 63 59 57 68 74 76 73 Dewpt 61 61 64 64 64 63 63 68 69 70 69 65 62 59 57 65 65 65 65 RH 62 52 66 87 93 97100 97 82 79 84 97 97100100 90 74 69 76 Wind dir SW SW SW S SW SW W W W NW N NE N NE E SE S W W Wind spd 6 9 6 6 6 5 4 4 4 4 4 3 2 2 1 2 3 3 3 Clouds FW SC SC B1 B1 B1 B2 B1 SC SC SC B1 FW B1 B2 SC SC B1 SC PoP 12hr 5 50 60 20 30 QPF 12hr 0 0.15 0.17 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S L C S C C Tstms S S C C S S C Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 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 78 60 81 57 77 55 76 Temp 61 57 76 75 65 61 78 77 64 58 74 73 60 56 73 73 Dewpt 60 57 68 69 64 61 70 69 60 56 61 63 56 55 63 65 PWind dir S S SW W NW N E SE Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC FW FW SC SC FW FW FW FW FW SC SC B1 B1 PoP 12hr 10 20 20 20 30 5 5 10 Rain shwrs S S S S C Tstms S S S S C $$ IAZ022-172100- STORM LAKE-BUENA VISTA 42.60N 95.23W Elev. 1427 ft 1138 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 63 77 59 76 Temp 76 78 76 68 66 66 64 69 74 76 74 67 64 62 60 68 73 75 72 Dewpt 64 63 66 65 65 64 63 69 71 72 72 67 64 62 60 67 68 68 68 RH 66 60 71 90 97 93 97100 90 87 93100100100100 97 84 79 87 Wind dir SW SW SW S SW SW W SW W W NW NE NE NE E SE SE SW SE Wind spd 5 6 5 6 6 6 6 4 4 3 2 2 2 2 2 2 2 2 1 Clouds FW SC FW SC B1 B2 B2 SC FW SC B1 B2 B2 B2 B2 B1 SC B1 SC PoP 12hr 0 50 60 10 30 QPF 12hr 0 0.16 0.23 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C L C S S C C Tstms S C C S S C C Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 59 77 61 80 60 76 57 75 Temp 62 60 75 74 65 62 77 76 65 60 74 72 61 58 72 71 Dewpt 62 60 70 72 65 62 72 73 63 59 65 66 58 57 66 68 PWind dir SE S SW SW NW N E SE Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC FW FW SC SC SC FW FW FW FW SC B1 B1 B1 PoP 12hr 10 10 20 20 20 5 10 10 Rain shwrs S S S S Tstms S S S S $$ MNZ072-172100- MARSHALL-LYON MN 44.47N 95.82W Elev. 1151 ft 1138 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 62 78 56 79 Temp 81 83 79 71 67 65 63 69 75 77 76 67 61 58 57 70 77 78 76 Dewpt 59 61 64 65 64 63 62 64 63 63 61 62 60 57 57 60 59 59 59 RH 47 47 60 81 90 93 97 84 66 62 60 84 97 96100 71 54 52 56 Wind dir SW SW SW SW SW W W N N N N N NW SW SW SE SE W S Wind spd 10 12 9 8 8 6 4 4 4 5 5 3 2 1 1 2 4 4 4 Clouds FW B1 SC B1 B1 B1 B2 SC SC SC SC FW FW FW FW FW SC SC SC PoP 12hr 30 40 30 10 20 QPF 12hr 0.10 0.10 0.07 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C C S S S S Tstms C S S S S S S S Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 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 59 82 63 82 59 79 57 79 Temp 63 60 80 80 68 64 79 79 65 59 76 77 63 58 76 77 Dewpt 60 60 63 64 65 63 63 61 58 55 57 56 56 55 58 59 PWind dir S SW SW NW NW N W SE Wind char LT GN GN GN LT GN LT LT Avg clouds SC FW FW FW SC SC FW FW FW FW FW FW SC B1 SC SC PoP 12hr 5 20 30 10 5 0 5 10 Rain shwrs S C Tstms S S $$ MNZ081-172100- WINDOM-COTTONWOOD MN 43.87N 95.12W Elev. 1355 ft 1138 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 62 77 55 77 Temp 81 82 78 71 68 64 63 69 74 77 75 66 62 58 57 69 75 77 74 Dewpt 57 58 62 64 65 63 62 65 64 64 63 63 61 58 57 61 59 60 61 RH 44 44 58 79 90 97 97 87 71 64 66 90 97100100 76 58 56 64 Wind dir SW SW S S SW SW SW NW N NW N N N NW SW SE S SW SW Wind spd 6 11 10 9 9 6 4 4 4 4 3 2 2 1 1 2 2 3 3 Clouds FW SC SC B1 SC B1 B2 SC SC SC FW SC FW SC B1 SC SC SC SC PoP 12hr 20 40 40 30 30 QPF 12hr 0.02 0.27 0.09 0.02 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C S S C C Tstms C C S C S S S C Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 57 79 61 80 58 77 56 76 Temp 62 58 77 77 66 62 78 78 64 58 74 75 62 56 73 74 Dewpt 61 58 63 65 64 62 64 63 59 56 57 57 56 55 58 60 PWind dir S SW SW W NW N SE SE Wind char LT GN LT LT LT GN LT LT Avg clouds SC SC FW FW SC SC SC FW FW FW FW FW SC SC SC SC PoP 12hr 10 20 40 20 10 5 5 10 Rain shwrs S C S S S Tstms S S S S S $$ MNZ089-172100- WORTHINGTON-NOBLES MN 43.65N 95.58W Elev. 1584 ft 1138 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 61 77 56 76 Temp 79 81 77 69 67 64 62 68 74 77 74 65 62 58 56 68 73 76 72 Dewpt 60 60 64 65 64 63 62 66 66 66 65 64 62 58 56 62 62 62 63 RH 52 49 64 87 90 97100 93 76 69 74 97100100100 81 68 62 73 Wind dir SW SW SW S SW SW W W N NW N NE NE NE SE SE S SW NE Wind spd 9 12 10 9 8 6 5 4 4 4 4 3 2 2 1 3 3 3 4 Clouds FW SC SC B1 B1 B1 B2 SC SC SC SC SC FW SC B2 SC SC B1 SC PoP 12hr 10 50 40 20 40 QPF 12hr 0 0.17 0.09 0 0.12 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S C C C S C C Tstms S C S S C S S S C Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 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 78 61 80 58 76 56 75 Temp 62 58 75 76 66 62 77 77 64 58 73 74 61 56 72 73 Dewpt 61 58 65 66 65 62 66 64 59 55 58 59 57 55 60 61 PWind dir S SW SW W NW N E SE Wind char LT GN LT LT LT LT LT LT Avg clouds SC SC SC FW FW SC SC FW FW FW FW FW SC SC B1 B1 PoP 12hr 10 20 30 20 20 5 5 10 Rain shwrs S C S S S Tstms S C S S S $$ SDZ040-172100- BROOKINGS-BROOKINGS SD 44.30N 96.80W Elev. 1617 ft 1138 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 60 78 54 78 Temp 77 82 80 70 65 62 61 69 75 76 75 66 60 57 55 69 75 77 74 Dewpt 61 64 65 65 63 62 61 64 63 62 62 61 59 57 55 61 61 60 61 RH 58 55 60 84 93100100 84 66 62 64 84 96100100 76 62 56 64 Wind dir SW SW SW SW S N W N N N N NE E E SE S SW SW SE Wind spd 12 13 8 4 4 3 3 5 6 5 4 3 2 2 2 4 5 5 4 Clouds SC SC FW B1 B1 B2 B2 SC FW SC FW SC FW SC B1 SC SC B1 SC PoP 12hr 10 40 20 5 30 QPF 12hr 0 0.23 0.04 0 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C S C C Tstms S S S S S S C Heat index 82 Max heat 84 Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 56 81 59 82 56 78 55 78 Temp 61 57 78 79 65 60 79 78 63 56 75 76 61 56 75 76 Dewpt 60 57 65 66 64 60 63 60 57 53 56 56 55 54 58 60 PWind dir S SW SW NW N N E SE Wind char LT GN LT GN LT LT LT GN Avg clouds SC SC SC FW FW SC FW FW FW FW FW FW SC B1 B1 SC PoP 12hr 5 5 20 5 5 5 10 10 Rain shwrs S Tstms S $$ SDZ050-172100- BURKE-GREGORY SD 43.18N 99.29W Elev. 2142 ft 1138 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 86 62 80 60 77 Temp 83 86 83 72 68 65 63 69 75 79 78 70 66 62 61 68 73 76 73 Dewpt 66 63 64 64 63 64 63 67 66 64 65 64 63 61 61 64 64 64 66 RH 57 46 53 76 84 97100 93 74 60 64 81 90 97100 87 73 66 79 Wind dir SW SW W S SW SW N SE N N N NE SE S SW SW S S SE Wind spd 9 6 4 5 6 6 5 6 6 6 4 3 4 4 5 6 9 9 8 Clouds SC SC SC SC B1 B1 B1 SC SC SC SC OV B2 B2 B2 B1 SC SC FW PoP 12hr 20 40 10 30 60 QPF 12hr 0.02 0.10 0 0 0.07 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C S C C L L S Tstms S S C C S S S C C S Heat index 85 Max heat 85 88 82 Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 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 59 84 63 84 61 79 60 79 Temp 64 60 80 81 68 64 79 81 67 61 75 77 66 61 73 76 Dewpt 63 60 67 66 63 60 64 64 59 55 59 61 59 58 63 65 PWind dir S SW S NE NE E SE SE Wind char GN GN LT GN LT GN GN BZ Avg clouds FW FW FW FW FW FW FW FW FW FW SC FW SC B2 B2 B1 PoP 12hr 20 5 10 5 10 5 30 30 Rain shwrs S C C Tstms S S S $$ SDZ057-172100- CHAMBERLAIN-BRULE SD 43.77N 99.32W Elev. 1565 ft 1138 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 62 82 60 79 Temp 82 87 85 73 69 66 63 70 76 81 80 70 66 63 61 69 74 78 76 Dewpt 68 63 64 65 66 65 63 66 64 63 62 64 63 63 61 64 64 64 64 RH 63 45 50 76 90 97100 87 66 54 54 81 90100100 84 71 62 66 Wind dir SW W W SE S NW E E N N N E SE SE S SW S S SE Wind spd 5 5 3 4 5 5 4 5 5 5 4 5 4 4 4 5 8 8 8 Clouds FW SC B1 SC B2 B1 SC SC SC SC B1 B1 SC B1 SC SC SC SC FW PoP 12hr 5 40 10 10 60 QPF 12hr 0 0.05 0 0 0.05 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C C L L Tstms S C S S S C C Heat index 85 Max heat 86 88 83 83 Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 59 86 62 86 60 81 60 81 Temp 65 60 81 84 68 63 82 83 67 60 77 79 66 61 76 79 Dewpt 65 60 66 63 65 62 62 60 58 56 57 57 59 59 62 64 PWind dir S SW SE NE NE E SE SE Wind char LT LT LT LT LT GN GN BZ Avg clouds FW FW FW FW FW FW FW FW FW FW SC SC SC B2 B2 B1 PoP 12hr 10 0 10 0 5 0 30 20 Rain shwrs C S Tstms S S $$ SDZ038-172100- HURON-BEADLE SD 44.38N 98.22W Elev. 1282 ft 1138 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 86 61 81 58 79 Temp 81 86 84 73 68 65 62 70 76 80 78 68 63 60 58 69 76 78 76 Dewpt 64 64 63 64 62 63 62 64 63 62 62 62 61 60 58 62 63 63 64 RH 56 48 49 73 81 93100 81 64 54 58 81 93100100 78 64 60 66 Wind dir SW W W SE SW NE W SW N NW NW NE E SE SE SE SW SW SE Wind spd 10 8 6 5 4 4 4 5 5 5 5 3 3 3 4 5 6 6 5 Clouds FW SC B1 B1 B2 B1 B1 SC SC SC FW FW FW B1 B1 SC SC B1 SC PoP 12hr 5 50 20 10 40 QPF 12hr 0 0.11 0.01 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S S C C Tstms C C S S C Heat index 83 Max heat 84 88 82 82 Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 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 59 85 61 85 59 81 59 81 Temp 64 60 80 82 67 61 81 82 65 59 78 78 64 59 76 78 Dewpt 63 60 66 66 65 61 62 60 57 55 56 57 57 57 60 63 PWind dir SE S SE NE N NE SE SE Wind char LT GN LT LT LT LT LT GN Avg clouds FW FW FW FW FW FW FW FW FW FW SC SC SC B1 B1 B1 PoP 12hr 5 5 5 0 5 5 20 20 Rain shwrs S S $$ SDZ059-172100- MITCHELL-DAVISON SD 43.76N 98.02W Elev. 1312 ft 1138 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 62 81 59 79 Temp 84 88 85 74 69 66 63 71 76 80 79 69 64 61 59 70 75 78 75 Dewpt 66 66 66 67 65 64 62 67 67 66 66 65 64 61 59 64 65 65 66 RH 55 48 53 79 87 93 97 87 74 62 64 87100100100 81 71 64 74 Wind dir SW SW W S S NW S E N N N NE E E SE S SW S SE Wind spd 13 9 5 5 4 5 4 5 6 6 4 3 3 3 4 5 6 8 6 Clouds SC SC B1 B1 SC B2 B1 FW SC SC SC SC SC B1 B1 SC B1 B1 SC PoP 12hr 5 40 10 10 40 QPF 12hr 0 0.15 0.01 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C C Tstms C S S S C Heat index 86 91 87 82 Max heat 89 92 84 84 Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 59 84 62 85 59 81 59 80 Temp 64 60 79 82 67 62 80 82 66 59 76 79 64 59 75 78 Dewpt 64 60 69 70 67 62 66 65 60 56 58 61 59 57 62 66 PWind dir S S S NE N NE SE SE Wind char LT GN LT LT LT LT LT GN Avg clouds SC SC FW FW FW FW FW FW FW FW FW SC SC B1 B1 B1 PoP 12hr 10 5 5 0 5 0 20 20 Rain shwrs S S $$ SDZ062-172100- SIOUX FALLS-MINNEHAHA SD 43.57N 96.73W Elev. 1424 ft 1138 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 63 81 58 79 Temp 80 84 82 73 68 66 64 71 77 79 78 69 64 61 59 70 76 78 75 Dewpt 61 64 66 66 65 65 63 67 66 66 65 64 63 60 59 63 63 63 64 RH 52 51 58 79 90 97 97 87 69 64 64 84 97 97100 78 64 60 69 Wind dir SW SW SW SW SW NW W NW NW NW NW NE NE E E SE S SW S Wind spd 11 13 10 6 5 3 3 4 4 5 5 3 2 2 2 3 4 5 5 Clouds SC SC SC SC B1 B2 B2 FW FW SC SC SC SC SC B2 SC B1 B1 SC PoP 12hr 10 40 30 10 50 QPF 12hr 0 0.20 0.06 0 0.07 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C C C C Tstms S S S S S C C Heat index 84 Max heat 84 87 82 83 Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 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 59 82 62 83 59 80 58 79 Temp 63 60 79 80 67 63 80 80 66 59 77 78 64 58 76 77 Dewpt 63 60 67 68 66 63 65 64 59 56 57 58 57 56 60 62 PWind dir S S S NW NE NE E SE Wind char LT GN LT LT LT LT LT GN Avg clouds SC SC SC FW FW SC SC FW FW FW FW FW SC B1 B1 B1 PoP 12hr 10 5 30 10 10 5 10 10 Rain shwrs C S Tstms C S $$ SDZ070-172100- VERMILLION-CLAY SD 42.95N 96.92W Elev. 1132 ft 1138 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 63 80 60 77 Temp 78 83 81 73 69 67 64 71 76 79 78 70 67 63 61 69 74 77 74 Dewpt 67 69 70 70 67 65 64 71 72 73 73 70 67 63 61 69 70 70 70 RH 69 63 69 90 93 93100100 87 82 85100100100100100 87 79 87 Wind dir SW SW S SW S SW S S SW NW N NE NE E E SE S S S Wind spd 10 10 6 8 5 5 4 4 4 4 3 3 2 2 2 3 4 4 4 Clouds SC SC SC SC B1 B1 B2 SC SC SC B1 OV B1 B2 B2 B1 B1 B1 SC PoP 12hr 10 50 30 10 50 QPF 12hr 0 0.17 0.04 0 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C C S S C C S Tstms S C C C C S S S C S Heat index 87 84 Max heat 82 88 84 Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 59 80 62 82 60 78 58 76 Temp 65 60 77 78 68 63 79 80 67 60 75 76 64 59 73 74 Dewpt 65 60 72 75 68 63 73 73 64 60 65 68 61 59 67 70 PWind dir S S S SW NE NE E SE Wind char LT LT LT LT LT LT LT GN Avg clouds SC SC SC FW FW SC SC FW FW FW FW FW FW B1 B1 B1 PoP 12hr 20 10 20 10 10 5 10 20 Rain shwrs S S S S Tstms S S S $$ SDZ069-172100- YANKTON-YANKTON SD 42.95N 97.39W Elev. 1207 ft 1138 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 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 64 81 60 77 Temp 80 85 82 73 69 66 65 70 76 79 78 70 66 63 61 68 74 77 74 Dewpt 66 69 69 69 66 65 65 70 72 71 72 69 66 63 61 68 69 69 70 RH 62 59 65 87 90 97100100 87 77 82 97100100100100 84 76 87 Wind dir S SW S SW S SW SE SE NW NW N N NE E SE S S S SE Wind spd 12 11 8 8 6 4 4 4 5 4 4 3 3 2 3 4 5 5 4 Clouds FW SC SC SC B1 B2 B2 B1 FW SC B1 B2 B2 B2 B2 B1 B1 B1 SC PoP 12hr 10 50 30 10 60 QPF 12hr 0 0.15 0.03 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S C C S S L L C Tstms S C S C C S S S C C Heat index 89 85 Max heat 83 90 85 Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 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 59 82 62 84 60 79 59 77 Temp 65 60 78 80 68 63 80 80 67 60 76 77 65 59 74 75 Dewpt 65 60 72 75 68 63 71 72 63 58 63 66 61 58 66 69 PWind dir S S S SW NE NE E SE Wind char LT LT LT LT LT LT LT GN Avg clouds SC SC FW FW FW SC SC FW FW FW SC FW SC B1 B2 B1 PoP 12hr 30 5 20 5 10 5 20 20 Rain shwrs C S S S S Tstms S S S S $$