Point Forecast Matrices
Issued by NWS Sioux Falls, SD
Issued by NWS Sioux Falls, SD
486 FOUS53 KFSD 181937 PFMFSD Point Forecast Matrices National Weather Service Sioux Falls SD 237 PM CDT Tue Aug 18 2026 IAZ012-190900- SIOUX CENTER-SIOUX IA 43.08N 96.18W Elev. 1446 ft 237 PM CDT Tue Aug 18 2026 Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 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 78 59 81 61 Temp 83 81 74 68 63 62 70 75 77 74 66 63 61 61 70 79 81 79 69 66 63 62 Dewpt 68 68 65 62 60 61 66 68 69 69 66 63 61 61 69 72 73 72 68 65 63 62 RH 61 65 74 81 90 97 87 79 76 84100100100100 97 79 77 79 97 97100100 Wind dir W NW NE NE NE E S SW SW SW S S S S S S S SW S S SW W Wind spd 3 2 2 3 3 3 3 4 3 3 3 2 3 3 6 10 9 5 4 3 3 2 Clouds B1 B2 B2 B1 B1 B2 B1 B1 SC SC FW FW FW SC FW FW SC FW SC FW FW SC PoP 12hr 10 30 10 30 40 QPF 12hr 0 0 0 0.01 0.05 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C C C C Tstms S S S C C S Heat index 86 83 86 Max heat 87 82 86 Date 08/21 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 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 60 78 58 76 60 80 62 82 Temp 79 79 66 60 76 76 63 60 73 74 65 61 76 78 67 63 79 79 Dewpt 71 72 63 58 65 66 58 57 66 69 62 60 71 72 66 63 71 73 PWind dir NW NE NE E SE SE S S NW Wind char LT LT LT LT GN LT LT LT LT Avg clouds FW FW FW FW SC FW FW SC B2 B1 B1 SC B1 SC SC SC B1 SC PoP 12hr 10 20 5 10 20 20 5 5 10 Rain shwrs S S S S S Tstms S S $$ IAZ031-190900- SIOUX CITY-WOODBURY IA 42.40N 96.38W Elev. 1210 ft 237 PM CDT Tue Aug 18 2026 Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 63 78 60 83 62 Temp 81 79 73 69 65 65 70 75 77 76 69 65 62 61 71 80 83 81 72 68 65 63 Dewpt 70 71 69 67 65 64 68 69 69 68 66 64 62 61 69 72 72 72 68 66 65 63 RH 69 77 87 93100 97 93 82 76 76 90 97100100 93 77 70 74 87 93100100 Wind dir NW NW E E E E SW S S SE SE S S S S S S S SE S SW SW Wind spd 4 3 2 2 2 3 3 4 3 3 3 2 2 2 5 9 8 5 5 3 3 2 Clouds B2 B2 B2 B2 B1 B2 B1 B1 SC FW FW FW FW SC FW FW FW FW SC FW FW SC PoP 12hr 30 50 20 5 40 QPF 12hr 0 0.11 0.05 0 0.08 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C S C C Tstms S S C S C C Heat index 83 83 88 85 Max heat 86 84 89 Date 08/21 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 83 61 79 60 77 61 81 63 82 Temp 81 81 68 62 77 77 66 61 74 75 67 62 78 79 68 64 80 80 Dewpt 72 72 65 61 68 68 61 59 67 69 63 61 71 72 67 64 73 73 PWind dir NW N NE E SE SE S S NW Wind char LT LT LT LT GN LT LT LT LT Avg clouds FW FW FW SC SC FW FW SC B2 B1 SC SC B1 SC SC SC B1 SC PoP 12hr 10 20 5 20 20 20 5 5 5 Rain shwrs S S S S S S Tstms S S S S S $$ IAZ014-190900- SPENCER-CLAY IA 43.15N 95.18W Elev. 1325 ft 237 PM CDT Tue Aug 18 2026 Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 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 79 58 82 61 Temp 83 81 74 66 62 61 70 76 78 75 66 63 60 59 71 79 81 77 69 66 63 62 Dewpt 66 65 63 59 57 58 62 64 65 65 63 61 59 59 67 69 70 69 66 63 62 62 RH 57 58 69 78 84 90 76 66 64 71 90 93 96100 87 72 69 76 90 90 97100 Wind dir NW NW N N NE E SE SW NW S S S S S SW SW SW SW SW SW W W Wind spd 5 4 3 3 3 3 3 4 4 3 3 3 4 3 8 11 11 8 5 4 5 4 Clouds B1 B2 B2 SC B1 B2 SC SC SC FW FW FW SC SC FW FW SC SC SC FW SC SC PoP 12hr 20 20 5 40 40 QPF 12hr 0 0.03 0 0.03 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C C Tstms S S C C S Heat index 85 Max heat 85 85 Date 08/21 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 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 59 79 56 77 58 81 61 83 Temp 79 78 64 60 76 75 61 58 73 73 63 59 77 78 66 62 79 79 Dewpt 68 68 60 58 62 62 56 55 62 64 60 58 67 68 63 61 69 70 PWind dir NW N N E SE SE S SW NW Wind char LT LT LT LT GN LT LT LT LT Avg clouds FW FW FW FW FW FW FW SC B2 B1 B1 SC B1 SC FW SC SC SC PoP 12hr 10 20 0 10 20 20 5 5 5 Rain shwrs S S S S Tstms S S S $$ IAZ022-190900- STORM LAKE-BUENA VISTA 42.60N 95.23W Elev. 1427 ft 237 PM CDT Tue Aug 18 2026 Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 61 78 60 81 63 Temp 80 78 71 67 64 63 69 74 76 74 66 63 62 60 70 78 80 77 69 66 65 63 Dewpt 70 70 67 64 61 62 66 67 67 67 64 62 62 60 68 70 71 71 67 65 64 63 RH 72 76 87 90 90 97 90 79 74 79 93 97100100 93 76 74 82 93 97 97100 Wind dir W NW NE N NE NE E S SW S S S S S S S S S SW SW SW W Wind spd 4 3 2 3 3 4 3 3 2 2 2 3 3 3 5 8 9 5 5 5 5 4 Clouds SC B2 B2 B1 B2 B2 B1 B1 SC FW FW FW SC SC FW FW FW FW SC SC FW SC PoP 12hr 10 20 5 20 40 QPF 12hr 0 0.02 0 0 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S C C Tstms S S S S C S Heat index 83 83 Max heat 84 83 Date 08/21 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 82 61 78 58 76 60 79 62 81 Temp 79 78 66 62 75 74 63 60 72 72 64 60 76 76 66 62 78 78 Dewpt 71 71 63 60 66 66 59 57 65 67 61 60 69 71 65 62 71 72 PWind dir NW N N E SE SE S S W Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW SC FW FW SC B2 B1 SC SC B1 SC FW SC SC SC PoP 12hr 10 20 5 10 30 20 5 20 10 Rain shwrs S S C S S S Tstms S S S S $$ MNZ072-190900- MARSHALL-LYON MN 44.47N 95.82W Elev. 1151 ft 237 PM CDT Tue Aug 18 2026 Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 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 81 61 85 63 Temp 81 81 71 65 61 59 71 77 80 78 68 64 63 62 74 82 84 81 71 67 65 63 Dewpt 62 60 60 57 55 56 57 58 60 61 63 62 62 62 66 65 65 65 66 63 63 61 RH 53 49 68 75 81 90 61 52 51 56 84 93 97100 76 56 53 58 84 87 93 93 Wind dir N N N NW NW S S NW NW S S SW SW SW SW SW SW SW SW W W W Wind spd 6 5 3 2 2 3 3 4 5 4 5 6 8 9 11 11 11 10 8 8 6 5 Clouds SC FW FW SC B1 B1 SC FW SC FW FW SC FW SC FW FW SC SC SC FW FW FW PoP 12hr 5 10 5 50 20 QPF 12hr 0 0 0 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S Tstms C C S Heat index 84 83 Max heat 83 82 84 86 Date 08/21 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 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 59 80 58 80 62 83 64 84 Temp 79 80 65 60 77 78 63 59 76 78 65 62 80 81 68 64 82 82 Dewpt 62 60 59 56 56 54 55 55 57 59 60 60 63 64 64 63 64 63 PWind dir NW NW N E SE S W W NW Wind char GN LT LT LT GN GN GN LT GN Avg clouds FW FW FW FW FW FW FW B1 B2 B1 SC B1 B1 SC FW FW SC FW PoP 12hr 5 0 0 5 20 20 5 20 5 Rain shwrs S S S S Tstms S S S $$ MNZ081-190900- WINDOM-COTTONWOOD MN 43.87N 95.12W Elev. 1355 ft 237 PM CDT Tue Aug 18 2026 Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 58 79 59 82 61 Temp 82 81 73 65 61 59 71 77 79 77 68 64 61 61 72 80 82 78 70 67 64 62 Dewpt 64 63 63 59 56 56 57 57 59 61 63 62 61 61 64 64 65 65 66 64 63 62 RH 55 54 71 81 84 90 61 50 50 58 84 93100100 76 58 56 64 87 90 97100 Wind dir NW N N N NE SE SE SW W SW S SW SW SW SW SW SW SW S SW W W Wind spd 5 4 2 2 1 2 2 4 4 4 4 4 5 6 10 11 11 9 6 6 6 5 Clouds SC SC B1 SC SC B1 FW SC SC SC FW FW FW SC FW FW SC SC SC FW FW SC PoP 12hr 20 10 5 50 30 QPF 12hr 0 0 0 0.06 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C C C Tstms S S S C C S Heat index 82 84 Max heat 84 81 83 85 Date 08/21 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 82 59 79 56 77 59 81 62 83 Temp 79 79 65 59 76 77 63 58 74 75 64 60 78 79 67 62 80 80 Dewpt 62 61 60 57 55 55 55 55 57 59 60 59 62 63 63 62 63 64 PWind dir NW NW N SE S S SW SW NW Wind char LT LT LT LT GN LT GN LT LT Avg clouds FW FW CL FW FW FW FW SC B2 B1 B1 SC B1 SC FW FW SC FW PoP 12hr 5 5 0 5 20 20 5 5 10 Rain shwrs S S S Tstms S S $$ MNZ089-190900- WORTHINGTON-NOBLES MN 43.65N 95.58W Elev. 1584 ft 237 PM CDT Tue Aug 18 2026 Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 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 78 59 81 61 Temp 81 78 70 65 61 60 69 75 77 75 66 63 61 60 71 78 81 78 69 66 63 61 Dewpt 64 63 61 60 57 57 60 61 62 63 64 62 61 60 66 67 67 66 66 64 63 61 RH 56 60 73 84 87 90 73 62 60 66 93 97100100 84 69 63 67 90 93100100 Wind dir NW NW NE N NE SE S SW W SE S SW SW SW SW SW SW SW S SW W W Wind spd 5 4 3 3 2 3 4 4 5 4 4 5 6 6 10 12 12 9 6 6 6 5 Clouds B2 SC B1 B1 B1 B1 SC B1 SC FW FW SC FW SC FW FW SC SC SC FW FW SC PoP 12hr 20 10 5 50 30 QPF 12hr 0 0.03 0 0.03 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S C C C C Tstms S S S S C C S Heat index 83 Max heat 82 84 Date 08/21 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 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 78 57 77 59 80 62 82 Temp 79 79 65 60 76 76 62 58 73 74 64 60 76 78 66 63 79 79 Dewpt 63 63 60 56 57 57 56 55 59 61 61 59 64 64 64 62 65 65 PWind dir NW N N E SE S SW SW NW Wind char LT LT LT LT GN GN GN LT LT Avg clouds FW FW FW SC FW FW FW SC B2 B1 SC SC B1 SC FW FW SC SC PoP 12hr 10 20 0 10 20 20 5 5 5 Rain shwrs S S S Tstms S S $$ SDZ040-190900- BROOKINGS-BROOKINGS SD 44.30N 96.80W Elev. 1617 ft 237 PM CDT Tue Aug 18 2026 Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 57 81 58 84 59 Temp 83 81 71 64 60 58 71 78 80 77 67 62 60 59 72 81 83 81 70 65 61 59 Dewpt 60 60 60 57 55 56 60 61 61 62 63 62 60 59 66 66 63 63 64 62 61 59 RH 46 49 68 78 84 93 68 56 52 60 87100100100 81 60 51 54 81 90100100 Wind dir N N NE E E SE S W W SE S S S S SW SW SW SW SW SW W NW Wind spd 5 5 4 3 3 3 5 8 6 4 4 5 5 5 10 11 12 9 4 4 3 3 Clouds B1 FW B1 SC B2 B2 B2 FW SC SC FW FW SC B1 FW FW SC FW FW FW FW SC PoP 12hr 5 10 10 20 5 QPF 12hr 0 0.01 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S Tstms S S Heat index 83 Max heat 84 80 81 83 85 Date 08/21 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 83 57 80 57 79 60 83 61 84 Temp 80 81 64 58 77 78 62 58 76 77 64 60 79 81 66 62 81 81 Dewpt 60 59 58 54 55 54 54 54 59 60 60 59 63 63 63 61 64 63 PWind dir N N NE E SE S W W NW Wind char LT LT LT LT GN GN GN LT GN Avg clouds FW FW FW FW SC FW FW SC B2 B1 SC SC B1 SC SC FW SC FW PoP 12hr 5 20 0 10 20 20 5 5 5 Rain shwrs S S S S S Tstms S S S S $$ SDZ050-190900- BURKE-GREGORY SD 43.18N 99.29W Elev. 2142 ft 237 PM CDT Tue Aug 18 2026 Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 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 79 61 87 64 Temp 80 78 71 68 65 64 68 74 77 76 68 65 63 62 73 83 87 84 73 69 66 64 Dewpt 64 65 64 63 63 61 66 65 64 66 65 65 63 62 66 65 62 64 63 61 61 60 RH 58 64 79 84 93 90 93 74 64 71 90100100100 79 55 43 51 71 76 84 87 Wind dir N NE S SW W W S S S SE SE S SW SW SW SW W N E N SW W Wind spd 6 4 4 4 4 4 6 8 8 9 9 10 11 11 10 9 9 6 5 4 5 6 Clouds B1 B2 OV B1 B1 B2 SC FW FW FW FW FW FW FW FW CL FW CL FW FW FW FW PoP 12hr 50 40 5 5 10 QPF 12hr 0.04 0.10 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S S Tstms C C S S S Heat index 85 Max heat 81 85 88 82 Date 08/21 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 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 62 81 63 82 64 84 65 84 Temp 81 82 68 62 77 79 68 64 76 80 69 64 79 82 69 65 80 81 Dewpt 65 66 62 58 62 64 61 60 65 68 65 62 67 68 65 63 66 67 PWind dir NE E E SE S S NW SW E Wind char LT LT GN GN BZ GN GN LT GN Avg clouds FW FW FW FW SC SC FW B1 B2 B1 SC SC B1 SC FW SC SC FW PoP 12hr 10 10 5 40 30 20 5 20 10 Rain shwrs C C S S Tstms C S S S $$ SDZ057-190900- CHAMBERLAIN-BRULE SD 43.77N 99.32W Elev. 1565 ft 237 PM CDT Tue Aug 18 2026 Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 81 61 88 63 Temp 79 78 69 67 65 64 70 76 80 78 69 66 64 62 73 84 88 86 73 68 65 63 Dewpt 62 62 62 63 62 62 66 65 64 64 66 66 64 62 66 65 61 62 63 63 63 61 RH 56 58 78 87 90 93 87 69 58 62 90100100100 79 53 40 45 71 84 93 93 Wind dir N NE E S W S S S SE S SE S S S SW W NW N NE SE NW N Wind spd 4 3 4 4 3 3 5 8 6 8 8 8 6 5 5 8 8 6 5 3 3 3 Clouds B1 B2 B2 B1 B1 B2 SC FW FW FW SC FW FW SC FW FW FW CL FW FW CL SC PoP 12hr 40 30 20 0 5 QPF 12hr 0.04 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C S S Tstms S S S S S Date 08/21 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 86 62 83 62 83 64 86 64 86 Temp 83 85 68 62 79 81 68 64 77 81 69 64 81 83 69 65 82 83 Dewpt 63 63 61 58 60 61 60 61 65 67 66 63 67 66 67 64 66 66 PWind dir NE E E SE SE SE NW NE E Wind char LT LT GN GN BZ GN LT LT LT Avg clouds FW FW FW FW SC SC FW B1 B2 B1 SC SC B1 SC FW FW SC FW PoP 12hr 0 5 0 40 20 20 5 10 10 Rain shwrs C S S Tstms C S S $$ SDZ038-190900- HURON-BEADLE SD 44.38N 98.22W Elev. 1282 ft 237 PM CDT Tue Aug 18 2026 Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 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 82 61 87 61 Temp 81 79 69 65 63 61 70 78 81 78 68 65 63 62 72 82 86 83 71 66 63 61 Dewpt 60 60 60 60 60 59 63 64 64 65 65 65 63 62 67 66 63 64 63 63 62 60 RH 49 52 73 84 90 93 78 62 56 64 90100100100 84 58 46 53 76 90 97 97 Wind dir N N NE SE SE N SE S S S S S S S S SW W NW E SW NW N Wind spd 5 4 4 4 4 3 6 8 6 6 8 8 8 8 9 10 9 6 4 3 3 3 Clouds B1 SC SC B1 B1 B2 SC FW FW SC SC SC SC SC FW FW FW FW FW FW FW FW PoP 12hr 10 20 5 0 0 QPF 12hr 0 0.02 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S Heat index 84 Max heat 83 83 85 88 82 Date 08/21 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 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 59 83 62 82 62 85 63 86 Temp 82 82 66 60 79 80 66 62 77 79 67 63 80 83 68 63 82 83 Dewpt 61 62 59 56 57 58 57 58 61 64 63 61 65 66 65 63 64 64 PWind dir N NE E SE SE SE W NW NW Wind char LT LT LT GN BZ GN GN LT GN Avg clouds FW FW CL FW SC SC SC B1 B2 B1 SC SC B1 SC SC SC SC FW PoP 12hr 5 0 0 20 20 20 5 10 5 Rain shwrs S S S S S Tstms S S S S S $$ SDZ059-190900- MITCHELL-DAVISON SD 43.76N 98.02W Elev. 1312 ft 237 PM CDT Tue Aug 18 2026 Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 61 81 61 87 62 Temp 83 81 73 68 64 63 70 76 79 77 68 65 63 62 73 82 86 83 72 66 64 62 Dewpt 64 64 63 63 61 60 66 66 66 67 66 65 63 62 68 69 67 69 67 65 64 62 RH 53 56 71 84 90 90 87 71 64 71 93100100100 84 65 53 63 84 97100100 Wind dir NW N E SE SE W S S E SE S S S S S S SW W SE S W NW Wind spd 6 4 3 3 4 3 8 8 8 6 8 8 6 6 9 10 10 5 4 4 3 3 Clouds B1 B1 B2 B1 B2 B2 B1 SC FW SC FW FW FW SC FW FW FW FW FW FW FW SC PoP 12hr 20 30 5 0 0 QPF 12hr 0 0.01 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S Tstms S S Heat index 83 85 89 87 Max heat 85 81 83 86 91 83 Date 08/21 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 86 60 83 61 81 62 85 63 86 Temp 82 83 66 60 79 80 66 62 76 79 66 63 80 83 68 64 81 83 Dewpt 64 66 62 57 59 62 59 59 63 67 64 62 67 69 67 64 67 68 PWind dir N NE E SE SE SE W W NW Wind char LT LT GN GN BZ GN GN LT GN Avg clouds FW FW FW FW SC FW FW B1 B2 B1 SC SC B1 SC SC FW SC FW PoP 12hr 5 5 5 20 20 20 5 10 5 Rain shwrs S S S S Tstms S S S S $$ SDZ062-190900- SIOUX FALLS-MINNEHAHA SD 43.57N 96.73W Elev. 1424 ft 237 PM CDT Tue Aug 18 2026 Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 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 60 85 62 Temp 83 81 73 67 64 62 71 77 79 78 68 64 62 61 72 82 84 82 72 67 64 62 Dewpt 63 63 62 60 59 60 63 64 64 64 65 64 62 61 67 68 67 67 66 64 63 62 RH 51 54 68 78 84 93 76 64 60 62 90100100100 84 63 57 61 81 90 97100 Wind dir NW NW N NE NE E S SW NW SE S S S S S S SW SW S SW W NW Wind spd 4 4 3 3 3 3 4 6 6 5 3 3 3 4 8 11 11 9 4 3 3 2 Clouds B1 SC B2 B1 B1 B2 SC SC SC FW FW FW FW SC FW FW SC FW SC FW FW SC PoP 12hr 10 20 10 20 30 QPF 12hr 0 0 0 0.03 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S S S S C C Tstms S S S S S Heat index 84 87 84 Max heat 85 81 82 85 88 82 Date 08/21 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 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 82 60 79 62 83 63 85 Temp 82 82 67 61 79 80 65 61 76 77 66 62 79 81 68 64 82 82 Dewpt 64 63 60 56 58 58 57 57 61 64 62 61 65 66 65 63 66 66 PWind dir N N NE E SE SE SW SW NW Wind char LT LT LT LT GN GN LT LT LT Avg clouds FW FW FW FW SC FW FW SC B2 B1 SC SC B2 SC FW FW B1 FW PoP 12hr 10 10 5 20 20 20 5 5 5 Rain shwrs S S S S Tstms S S $$ SDZ070-190900- VERMILLION-CLAY SD 42.95N 96.92W Elev. 1132 ft 237 PM CDT Tue Aug 18 2026 Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 63 79 60 84 63 Temp 84 82 75 71 66 65 70 75 78 76 68 66 63 62 72 80 84 82 72 69 65 63 Dewpt 71 71 69 68 65 64 69 70 70 70 68 66 63 62 71 73 73 74 70 68 65 63 RH 65 69 82 90 97 97 97 84 76 82100100100100 97 79 70 77 93 97100100 Wind dir NW W N SE SE E S SW S S S S S S S S S SW S S SW W Wind spd 5 3 3 3 3 2 4 6 5 4 4 4 4 4 6 10 10 5 5 4 4 3 Clouds B1 B1 B2 B2 B1 B2 B1 B1 FW FW FW CL CL SC FW FW FW FW SC FW FW SC PoP 12hr 30 40 10 10 30 QPF 12hr 0 0.04 0 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C C Tstms S S S C S Heat index 89 86 85 90 88 Max heat 90 84 86 93 Date 08/21 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 83 61 80 60 78 61 81 63 83 Temp 80 81 68 62 77 78 66 62 74 76 67 62 77 79 68 64 80 81 Dewpt 72 74 66 61 68 70 63 60 68 71 65 62 72 74 68 64 73 74 PWind dir NW NE NE SE SE SE S SW NW Wind char LT LT LT LT GN GN LT LT LT Avg clouds FW FW FW SC SC FW FW B1 B2 B1 SC SC B1 SC SC SC B1 SC PoP 12hr 10 10 5 20 20 20 20 10 10 Rain shwrs S S S S S S Tstms S S S S S $$ SDZ069-190900- YANKTON-YANKTON SD 42.95N 97.39W Elev. 1207 ft 237 PM CDT Tue Aug 18 2026 Date 08/18/26 Wed 08/19/26 Thu 08/20/26 Fri 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 79 61 85 63 Temp 83 81 74 70 66 65 67 74 77 76 68 65 63 62 71 80 84 82 72 68 65 63 Dewpt 67 68 67 65 63 63 67 70 70 70 68 65 63 62 71 73 72 74 70 67 65 63 RH 59 65 79 84 90 93100 87 79 82100100100100100 79 67 77 93 97100100 Wind dir NW NW N NE E NE S SW S SE S S S S S S SW S S S SW W Wind spd 4 3 3 3 4 3 5 6 6 5 4 4 4 4 6 10 10 5 5 4 4 3 Clouds B2 B2 B2 B2 B1 B2 B2 SC FW SC FW SC FW SC SC FW FW FW FW FW FW SC PoP 12hr 30 40 10 5 10 QPF 12hr 0 0.03 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C S S S S Tstms S S S S S S S Heat index 86 84 84 91 88 Max heat 87 83 86 93 Date 08/21 Sat 08/22/26 Sun 08/23/26 Mon 08/24/26 Tue 08/25/26 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 62 81 61 79 62 82 64 84 Temp 81 82 68 62 78 78 66 62 74 77 67 63 78 80 68 64 80 81 Dewpt 70 72 65 60 65 68 62 60 67 70 65 62 71 73 68 64 72 73 PWind dir N NE E SE SE SE S SW NW Wind char LT LT LT GN GN GN LT LT LT Avg clouds FW FW FW SC SC FW FW B1 B2 B1 SC SC B1 SC SC SC B1 SC PoP 12hr 5 20 5 20 20 20 5 10 10 Rain shwrs S S S S S Tstms S S S S S $$