Point Forecast Matrices
Issued by NWS Sioux Falls, SD
Issued by NWS Sioux Falls, SD
223 FOUS53 KFSD 172253 PFMFSD Point Forecast Matrices National Weather Service Sioux Falls SD 553 PM CDT Mon Aug 17 2026 IAZ012-180900- SIOUX CENTER-SIOUX IA 43.08N 96.18W Elev. 1446 ft 553 PM CDT Mon Aug 17 2026 Date 08/17/26 Tue 08/18/26 Wed 08/19/26 Thu 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 77 58 75 57 Temp 78 70 67 64 63 70 75 76 75 67 64 60 59 68 74 75 71 65 63 60 58 Dewpt 67 67 65 64 63 70 72 72 72 67 64 60 59 68 69 69 70 65 63 60 58 RH 69 90 93100100100 90 87 90100100100100100 84 82 97100100100100 Wind dir S S S SW W S W NW N NE NE E E SE S SW S SE S S S Wind spd 8 6 5 3 3 3 3 2 2 2 2 2 1 2 2 2 2 2 3 2 2 Clouds SC B1 SC B1 B2 SC FW SC SC B1 SC B2 B2 SC SC B1 SC SC SC SC B1 PoP 12hr 40 40 10 50 10 QPF 12hr 0.10 0.11 0 0.07 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C S C C Tstms S S C C S C C Date 08/20 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 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 77 60 80 58 75 56 75 58 76 Temp 75 73 65 61 78 77 64 58 74 73 62 58 73 73 63 59 74 74 Dewpt 72 73 65 61 72 73 62 57 64 66 58 56 66 68 63 59 70 71 PWind dir S S SW NE N E SE SE SE Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC FW FW FW B1 FW FW FW SC FW FW SC B2 B1 SC B1 B2 SC PoP 12hr 10 20 10 20 20 10 10 10 10 Rain shwrs S S S S Tstms S S S $$ IAZ031-180900- SIOUX CITY-WOODBURY IA 42.40N 96.38W Elev. 1210 ft 553 PM CDT Mon Aug 17 2026 Date 08/17/26 Tue 08/18/26 Wed 08/19/26 Thu CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 63 79 60 77 59 Temp 79 72 69 67 64 71 76 78 77 71 67 63 61 69 75 77 74 68 64 62 60 Dewpt 68 67 66 64 64 70 72 73 72 70 67 63 61 68 69 69 69 66 64 62 60 RH 69 84 90 90100 97 87 85 85 97100100100 97 82 76 84 93100100100 Wind dir S S S SE SW SE SW NW W NE NE NE E SE S S SE SE S S S Wind spd 8 6 5 4 4 4 4 3 3 2 1 1 1 2 3 2 3 3 2 2 2 Clouds SC SC B1 B1 B2 SC SC SC B1 B2 OV B2 B2 B1 B1 B1 SC SC SC SC B1 PoP 12hr 60 60 10 40 20 QPF 12hr 0.20 0.13 0 0.05 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C L C S S C C S S Tstms S C C C C S S S C S S Date 08/20 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 79 61 82 60 77 57 76 59 77 Temp 77 76 66 63 79 80 67 61 75 75 64 60 74 74 65 61 75 76 Dewpt 71 72 66 63 73 73 64 59 66 67 60 58 66 68 63 61 70 72 PWind dir S S SW NE N E SE SE SE Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC FW FW FW B1 FW FW FW SC FW FW SC B2 B1 SC B1 B2 B1 PoP 12hr 5 20 20 20 5 10 20 10 20 Rain shwrs S S S S S S S Tstms S S S S S $$ IAZ014-180900- SPENCER-CLAY IA 43.15N 95.18W Elev. 1325 ft 553 PM CDT Mon Aug 17 2026 Date 08/17/26 Tue 08/18/26 Wed 08/19/26 Thu 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 78 56 77 56 Temp 76 68 66 64 63 69 75 77 74 66 63 59 57 68 74 76 73 64 61 59 57 Dewpt 63 64 64 63 63 68 69 70 69 65 62 59 57 65 65 65 65 63 60 58 57 RH 64 87 93 97100 97 82 79 84 97 97100100 90 74 69 76 97 97 96100 Wind dir S S SW SW W W W NW N NE N NE E SE S W W SE S S S Wind spd 8 6 6 5 4 4 4 4 4 3 2 2 1 2 3 3 3 3 2 3 3 Clouds SC B1 SC B1 B2 B1 SC SC SC B1 FW B1 B2 SC SC B1 SC SC SC SC SC PoP 12hr 50 60 20 30 10 QPF 12hr 0.15 0.17 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C L C S C C Tstms S S C C C S S C Date 08/20 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 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 78 60 81 57 76 55 76 57 77 Temp 76 74 65 61 78 77 64 58 74 72 60 57 74 73 62 58 74 75 Dewpt 68 69 64 61 70 69 60 56 61 63 56 55 63 65 60 58 66 68 PWind dir S SW W NW N E SE SE SE Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC FW FW SC B1 FW FW FW SC FW FW SC B1 B1 SC SC B1 SC PoP 12hr 20 20 20 30 5 5 10 10 10 Rain shwrs S S S S C S Tstms S S S S C S $$ IAZ022-180900- STORM LAKE-BUENA VISTA 42.60N 95.23W Elev. 1427 ft 553 PM CDT Mon Aug 17 2026 Date 08/17/26 Tue 08/18/26 Wed 08/19/26 Thu CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 63 77 59 76 59 Temp 76 68 66 66 64 69 74 76 74 67 64 62 60 68 73 75 72 65 62 61 60 Dewpt 65 65 65 64 63 69 71 72 72 67 64 62 60 67 68 68 68 64 62 61 60 RH 69 90 97 93 97100 90 87 93100100100100 97 84 79 87 97100100100 Wind dir S S S SW W SW W W NW NE NE NE E SE SE SW SE E S S S Wind spd 5 6 6 6 6 4 4 3 2 2 2 2 2 2 2 2 1 2 2 2 2 Clouds SC SC B1 B2 B2 SC FW SC B1 B2 B2 B2 B2 B1 SC B1 SC SC SC SC SC PoP 12hr 50 60 10 30 10 QPF 12hr 0.16 0.23 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C L C S S C C Tstms S C C C S S C C Date 08/20 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 77 61 80 60 75 57 76 59 76 Temp 75 74 65 62 77 76 65 60 73 71 61 59 73 72 62 60 74 73 Dewpt 70 72 65 62 72 73 63 59 65 66 58 57 66 68 62 60 69 71 PWind dir S SW SW NW N E SE SE SE Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC FW FW SC SC FW SC FW SC FW FW SC B1 B1 SC B1 B1 SC PoP 12hr 10 20 20 20 10 10 10 10 10 Rain shwrs S S S S S S S Tstms S S S S S S $$ MNZ072-180900- MARSHALL-LYON MN 44.47N 95.82W Elev. 1151 ft 553 PM CDT Mon Aug 17 2026 Date 08/17/26 Tue 08/18/26 Wed 08/19/26 Thu 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 78 56 79 59 Temp 79 71 67 65 63 69 75 77 76 67 61 58 57 70 77 78 76 67 63 61 60 Dewpt 64 65 64 63 62 64 63 63 61 62 60 57 57 60 59 59 59 61 60 60 60 RH 60 81 90 93 97 84 66 62 60 84 97 96100 71 54 52 56 81 90 97100 Wind dir SW SW SW W W N N N N N NW SW SW SE SE W S S S SW S Wind spd 9 8 8 6 4 4 4 5 5 3 2 1 1 2 4 4 4 4 5 5 6 Clouds SC SC B1 B1 B2 SC SC SC SC FW FW FW FW FW SC SC SC SC FW FW SC PoP 12hr 50 30 10 20 5 QPF 12hr 0.10 0.07 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C C S S S S Tstms C S C S S S S Date 08/20 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 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 82 63 82 59 78 57 79 61 82 Temp 80 78 67 64 79 79 65 60 76 76 63 59 76 77 65 62 79 79 Dewpt 63 64 65 63 63 61 58 55 57 56 56 55 58 59 61 60 63 63 PWind dir SW SW NW NW N SW SE SE S Wind char GN GN GN LT GN LT LT LT GN Avg clouds FW FW SC SC SC FW FW FW FW FW FW SC B1 SC SC SC B1 SC PoP 12hr 20 30 10 20 0 5 10 10 10 Rain shwrs S C S S Tstms S S S $$ MNZ081-180900- WINDOM-COTTONWOOD MN 43.87N 95.12W Elev. 1355 ft 553 PM CDT Mon Aug 17 2026 Date 08/17/26 Tue 08/18/26 Wed 08/19/26 Thu CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 77 55 77 57 Temp 78 71 68 64 63 69 74 77 75 66 62 58 57 69 75 77 74 66 62 60 58 Dewpt 61 64 65 63 62 65 64 64 63 63 61 58 57 61 59 60 61 61 61 59 58 RH 56 79 90 97 97 87 71 64 66 90 97100100 76 58 56 64 84 97 96100 Wind dir SW S SW SW SW NW N NW N N N NW SW SE S SW SW S S SW SW Wind spd 10 9 9 6 4 4 4 4 3 2 2 1 1 2 2 3 3 3 3 4 4 Clouds SC B1 SC B1 B2 SC SC SC FW SC FW SC B1 SC SC SC SC SC FW SC SC PoP 12hr 50 40 30 30 10 QPF 12hr 0.27 0.09 0.02 0.04 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S C C C S S C C Tstms S C S C C S S S C Date 08/20 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 79 61 80 58 77 56 76 58 78 Temp 77 75 65 62 78 78 64 58 74 75 62 57 73 74 63 59 76 76 Dewpt 63 65 64 62 64 63 59 56 57 57 56 55 58 60 61 59 62 63 PWind dir SW SW W NW N SE SE SE S Wind char GN LT LT LT GN LT LT LT GN Avg clouds FW FW SC SC SC FW FW FW SC FW SC SC B1 SC SC SC B1 SC PoP 12hr 20 40 20 20 5 5 10 10 10 Rain shwrs S C S S S S S Tstms S S S S S S $$ MNZ089-180900- WORTHINGTON-NOBLES MN 43.65N 95.58W Elev. 1584 ft 553 PM CDT Mon Aug 17 2026 Date 08/17/26 Tue 08/18/26 Wed 08/19/26 Thu 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 61 77 56 76 57 Temp 77 69 67 64 62 68 74 77 74 65 62 58 56 68 73 76 72 64 62 59 58 Dewpt 64 65 64 63 62 66 66 66 65 64 62 58 56 62 62 62 63 63 61 59 58 RH 64 87 90 97100 93 76 69 74 97100100100 81 68 62 73 97 97100100 Wind dir SW S SW SW W W N NW N NE NE NE SE SE S SW NE S S SW S Wind spd 10 9 8 6 5 4 4 4 4 3 2 2 1 3 3 3 4 3 4 4 5 Clouds SC B1 SC B1 B2 SC SC SC SC SC FW SC B2 SC SC B1 SC SC FW SC SC PoP 12hr 50 40 20 40 10 QPF 12hr 0.17 0.09 0 0.12 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C S C C C S C C Tstms S C S C C S S S C Date 08/20 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 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 78 61 80 58 75 56 75 58 77 Temp 75 74 65 62 77 77 64 58 73 72 60 57 72 72 63 59 74 74 Dewpt 65 66 64 62 66 64 59 56 58 58 57 55 60 61 61 59 64 64 PWind dir SW SW W NW N E SE SE S Wind char GN LT LT LT LT LT LT LT GN Avg clouds SC FW FW FW SC FW CL FW SC FW FW SC B1 B1 SC SC B1 SC PoP 12hr 20 30 20 20 20 5 10 10 10 Rain shwrs S C S S S S S Tstms S C S S S S $$ SDZ040-180900- BROOKINGS-BROOKINGS SD 44.30N 96.80W Elev. 1617 ft 553 PM CDT Mon Aug 17 2026 Date 08/17/26 Tue 08/18/26 Wed 08/19/26 Thu CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 60 78 54 78 56 Temp 80 70 65 62 61 69 75 76 75 66 60 57 55 69 75 77 74 66 61 59 57 Dewpt 65 65 63 62 61 64 63 62 62 61 59 57 55 61 61 60 61 61 60 59 57 RH 60 84 93100100 84 66 62 64 84 96100100 76 62 56 64 84 97100100 Wind dir SW S S N W N N N N NE E E SE S SW SW SE S S S S Wind spd 8 4 4 3 3 5 6 5 4 3 2 2 2 4 5 5 4 4 4 4 5 Clouds SC B1 B2 B2 B2 SC SC SC FW SC FW SC B1 SC SC B1 SC FW FW SC SC PoP 12hr 50 20 5 30 5 QPF 12hr 0.23 0.04 0 0.04 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C S C C Tstms S S C C S S C Heat index 82 Max heat 84 Date 08/20 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 81 59 82 55 77 55 78 58 81 Temp 78 77 64 60 79 79 63 56 75 75 61 57 75 76 64 59 77 78 Dewpt 65 66 64 60 63 60 57 53 56 56 55 53 58 60 60 59 63 64 PWind dir SW SW NW N N E SE SE S Wind char GN LT GN LT LT LT GN LT GN Avg clouds SC FW FW SC SC FW CL FW SC FW SC SC B2 B1 SC SC B1 SC PoP 12hr 5 20 5 20 20 10 10 10 10 Rain shwrs S S S Tstms S S $$ SDZ050-180900- BURKE-GREGORY SD 43.18N 99.29W Elev. 2142 ft 553 PM CDT Mon Aug 17 2026 Date 08/17/26 Tue 08/18/26 Wed 08/19/26 Thu 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 80 60 77 59 Temp 83 72 68 65 63 69 75 79 78 70 66 62 61 68 73 76 73 66 64 61 60 Dewpt 64 64 63 64 63 67 66 64 65 64 63 61 61 64 64 64 66 65 63 61 60 RH 53 76 84 97100 93 74 60 64 81 90 97100 87 73 66 79 97 97100100 Wind dir SW S SW SW N SE N N N NE SE S SW SW S S SE S S SW SW Wind spd 4 6 8 6 5 6 6 6 4 3 4 4 5 6 9 9 8 9 10 10 9 Clouds B1 SC B1 B1 B1 SC SC SC SC OV B2 B2 B2 B1 SC SC FW FW FW FW SC PoP 12hr 40 10 30 60 20 QPF 12hr 0.10 0 0 0.07 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C S C C L L S S Tstms S C C C S S S C C S S Date 08/20 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 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 84 63 84 61 79 60 79 62 81 Temp 80 77 66 64 79 81 67 61 75 77 66 62 73 76 67 63 76 79 Dewpt 67 66 63 60 64 64 59 55 59 61 59 58 63 65 63 61 66 68 PWind dir SW S N NE E SE SE SE S Wind char GN LT GN LT GN GN BZ GN GN Avg clouds FW FW FW FW SC FW FW FW SC FW FW B1 B2 B1 SC SC B1 SC PoP 12hr 5 10 5 10 5 30 30 20 20 Rain shwrs S C C S S S S S Tstms S S S S S S $$ SDZ057-180900- CHAMBERLAIN-BRULE SD 43.77N 99.32W Elev. 1565 ft 553 PM CDT Mon Aug 17 2026 Date 08/17/26 Tue 08/18/26 Wed 08/19/26 Thu CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 82 60 79 59 Temp 85 73 69 66 63 70 76 81 80 70 66 63 61 69 74 78 76 68 65 63 60 Dewpt 63 65 66 65 63 66 64 63 62 64 63 63 61 64 64 64 64 66 65 63 60 RH 48 76 90 97100 87 66 54 54 81 90100100 84 71 62 66 93100100100 Wind dir W SE S NW E E N N N E SE SE S SW S S SE SE S S S Wind spd 4 5 5 5 4 5 5 5 4 5 4 4 4 5 8 8 8 8 6 5 4 Clouds B1 SC B2 B1 SC SC SC SC B1 B1 SC B1 SC SC SC SC FW FW FW FW SC PoP 12hr 40 10 10 60 10 QPF 12hr 0.05 0 0 0.05 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C L L Tstms S C C C S S C C Date 08/20 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 86 62 86 60 80 60 80 62 83 Temp 81 80 66 63 82 83 67 61 76 78 66 62 75 78 67 63 79 81 Dewpt 66 63 65 62 62 60 58 56 57 57 59 59 62 64 64 63 66 66 PWind dir SW SE NE NE E SE SE SE SE Wind char LT LT GN LT GN GN BZ GN GN Avg clouds FW FW FW FW SC FW FW FW SC SC SC B1 B2 B1 SC SC B2 SC PoP 12hr 0 10 0 5 0 30 20 20 20 Rain shwrs C S S S S S S Tstms S S S S $$ SDZ038-180900- HURON-BEADLE SD 44.38N 98.22W Elev. 1282 ft 553 PM CDT Mon Aug 17 2026 Date 08/17/26 Tue 08/18/26 Wed 08/19/26 Thu 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 61 81 58 79 59 Temp 84 73 68 65 62 70 76 80 78 68 63 60 58 69 76 78 76 67 64 62 60 Dewpt 63 64 62 63 62 64 63 62 62 62 61 60 58 62 63 63 64 64 63 62 60 RH 49 73 81 93100 81 64 54 58 81 93100100 78 64 60 66 90 97100100 Wind dir W S W NE W SW N NW NW NE E SE SE SE SW SW SE SE S S S Wind spd 6 5 4 4 4 5 5 5 5 3 3 3 4 5 6 6 5 6 6 6 6 Clouds B2 B1 B1 B1 B1 SC SC SC FW FW FW B1 B1 SC SC B1 SC FW FW FW SC PoP 12hr 50 20 10 40 5 QPF 12hr 0.11 0.01 0 0.03 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C S S S C C Tstms C S C S S C Date 08/20 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 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 85 61 85 59 79 59 79 61 82 Temp 80 79 65 62 81 82 65 59 77 77 64 60 75 77 65 62 78 79 Dewpt 66 66 65 62 62 60 57 55 56 57 57 57 60 63 63 61 65 66 PWind dir S SE NE N NE SE SE SE S Wind char GN LT LT LT LT LT GN GN GN Avg clouds FW FW FW SC SC FW FW FW SC SC SC B1 B2 B1 SC B1 B2 SC PoP 12hr 5 5 0 10 20 20 20 20 10 Rain shwrs S S S S S Tstms S S $$ SDZ059-180900- MITCHELL-DAVISON SD 43.76N 98.02W Elev. 1312 ft 553 PM CDT Mon Aug 17 2026 Date 08/17/26 Tue 08/18/26 Wed 08/19/26 Thu CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 81 59 79 59 Temp 85 74 69 66 63 71 76 80 79 69 64 61 59 70 75 78 75 67 64 62 60 Dewpt 66 67 65 64 62 67 67 66 66 65 64 61 59 64 65 65 66 66 64 62 60 RH 53 79 87 93 97 87 74 62 64 87100100100 81 71 64 74 97100100100 Wind dir W S S NW S E N N N NE E E SE S SW S SE SE S S S Wind spd 5 5 5 5 4 5 6 6 4 3 3 3 4 5 6 8 6 6 6 6 6 Clouds B1 SC B1 B2 B1 FW SC SC SC SC SC B1 B1 SC B1 B1 SC SC FW SC SC PoP 12hr 50 10 10 40 10 QPF 12hr 0.15 0.01 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C S S C C Tstms C C C S S C Heat index 87 82 Max heat 90 84 84 Date 08/20 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 84 61 85 59 79 59 80 61 82 Temp 79 79 66 62 80 82 66 59 75 77 63 60 75 78 66 62 77 79 Dewpt 69 70 66 62 66 65 60 56 58 61 59 57 62 66 64 61 66 68 PWind dir S S NE N NE SE SE SE S Wind char GN LT LT LT LT LT GN GN GN Avg clouds FW FW FW FW SC FW FW FW SC FW FW SC B2 B1 B1 SC B2 SC PoP 12hr 5 10 0 5 0 20 20 20 20 Rain shwrs S S S S S Tstms S $$ SDZ062-180900- SIOUX FALLS-MINNEHAHA SD 43.57N 96.73W Elev. 1424 ft 553 PM CDT Mon Aug 17 2026 Date 08/17/26 Tue 08/18/26 Wed 08/19/26 Thu 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 81 58 79 59 Temp 82 73 68 66 64 71 77 79 78 69 64 61 59 70 76 78 75 67 63 61 60 Dewpt 66 66 65 65 63 67 66 66 65 64 63 60 59 63 63 63 64 64 63 61 60 RH 58 79 90 97 97 87 69 64 64 84 97 97100 78 64 60 69 90100100100 Wind dir SW S SW NW W NW NW NW NW NE NE E E SE S SW S SE S S S Wind spd 10 6 5 3 3 4 4 5 5 3 2 2 2 3 4 5 5 4 3 3 3 Clouds SC B1 SC B2 B2 FW FW SC SC SC SC SC B2 SC B1 B1 SC SC SC SC SC PoP 12hr 50 30 10 50 10 QPF 12hr 0.20 0.06 0 0.07 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C C C Tstms S S C C S C C Heat index 84 Max heat 87 82 83 Date 08/20 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 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 82 62 83 59 78 58 78 61 81 Temp 79 77 66 62 81 80 66 60 76 76 63 59 75 76 65 61 77 78 Dewpt 67 68 66 62 65 64 59 56 57 58 57 56 60 62 62 61 64 66 PWind dir S S NW NE NE E SE SE S Wind char GN LT LT LT LT LT GN LT GN Avg clouds SC FW FW FW B1 FW FW FW SC FW FW SC B2 B1 SC SC B2 SC PoP 12hr 5 30 5 20 20 10 10 10 20 Rain shwrs C S S S S S Tstms C S S S $$ SDZ070-180900- VERMILLION-CLAY SD 42.95N 96.92W Elev. 1132 ft 553 PM CDT Mon Aug 17 2026 Date 08/17/26 Tue 08/18/26 Wed 08/19/26 Thu CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 63 80 60 77 59 Temp 81 73 69 67 64 71 76 79 78 70 67 63 61 69 74 77 74 67 65 62 60 Dewpt 69 70 67 65 64 71 72 73 73 70 67 63 61 69 70 70 70 67 65 62 60 RH 67 90 93 93100100 87 82 85100100100100100 87 79 87100100100100 Wind dir S S S SW S S SW NW N NE NE E E SE S S S SE S S S Wind spd 6 6 5 5 4 4 4 4 3 3 2 2 2 3 4 4 4 4 4 3 3 Clouds SC SC SC B1 B2 SC SC SC B1 OV B1 B2 B2 B1 B1 B1 SC SC SC SC SC PoP 12hr 50 30 10 50 20 QPF 12hr 0.17 0.04 0 0.04 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C C S S C C S S S S Tstms S C C C C S S S C S S S S Heat index 84 Max heat 87 84 Date 08/20 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 80 62 83 60 78 58 76 60 78 Temp 77 76 67 63 80 80 67 60 76 76 64 60 73 74 65 61 75 76 Dewpt 72 75 67 63 73 73 64 60 65 68 61 59 67 70 65 61 70 72 PWind dir S S SW NE NE E SE SE SE Wind char LT LT LT LT LT LT GN LT GN Avg clouds SC FW FW FW SC FW FW FW SC FW FW SC B2 B1 SC B1 B2 SC PoP 12hr 10 20 10 20 5 10 20 10 20 Rain shwrs S S S S S S Tstms S S S S $$ SDZ069-180900- YANKTON-YANKTON SD 42.95N 97.39W Elev. 1207 ft 553 PM CDT Mon Aug 17 2026 Date 08/17/26 Tue 08/18/26 Wed 08/19/26 Thu 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 64 81 60 77 59 Temp 82 73 69 66 65 70 76 79 78 70 66 63 61 68 74 77 74 67 65 62 60 Dewpt 68 69 66 65 65 70 72 71 72 69 66 63 61 68 69 69 70 67 65 62 60 RH 63 87 90 97100100 87 77 82 97100100100100 84 76 87100100100100 Wind dir S S SW SW SE SE NW NW N N NE E SE S S S SE SE S S S Wind spd 8 6 6 4 4 4 5 4 4 3 3 2 3 4 5 5 4 4 4 4 3 Clouds SC SC SC B2 B2 B1 FW SC B1 B2 B2 B2 B2 B1 B1 B1 SC SC SC SC SC PoP 12hr 50 30 10 60 30 QPF 12hr 0.15 0.03 0 0.03 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C C S S L L C C S S Tstms S C C C C S S S C C S S Heat index 85 Max heat 88 85 Date 08/20 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 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 82 62 84 60 78 59 77 61 79 Temp 78 77 67 63 80 80 67 61 75 76 65 60 74 75 66 62 75 77 Dewpt 72 75 67 63 71 72 63 58 63 66 61 58 66 69 64 62 69 72 PWind dir S S SW NE NE E SE SE SE Wind char LT LT LT LT LT LT GN GN GN Avg clouds FW FW FW FW SC FW FW FW SC FW FW B1 B2 B1 SC B1 B1 SC PoP 12hr 5 20 5 10 5 20 20 10 20 Rain shwrs S S S S Tstms S S $$