Point Forecast Matrices
Issued by NWS Sioux Falls, SD
Issued by NWS Sioux Falls, SD
957 FOUS53 KFSD 151903 PFMFSD Point Forecast Matrices National Weather Service Sioux Falls SD 203 PM CDT Sat Aug 15 2026 IAZ012-160900- SIOUX CENTER-SIOUX IA 43.08N 96.18W Elev. 1446 ft 203 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue 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 55 79 61 Temp 83 79 75 68 65 62 69 74 76 76 66 61 58 56 70 76 78 76 69 67 64 62 Dewpt 74 74 70 68 65 62 67 68 67 68 63 60 58 56 67 69 72 73 69 67 64 62 RH 74 85 84100100100 93 82 74 76 90 97100100 90 79 82 90100100100100 Wind dir W W W NW N N N N NW NW NW N N S SW SW SW SW SW SW SW SW Wind spd 3 3 3 5 6 5 8 9 8 3 2 1 0 0 3 8 9 5 5 4 3 2 Clouds OV B2 B2 SC FW B2 SC FW FW FW FW SC SC SC SC SC SC B1 B2 B1 B2 OV PoP 12hr 40 5 0 30 40 QPF 12hr 0.01 0 0 0.10 0.26 Snow 12hr 00-00 00-00 00-00 Rain shwrs L C C C C C C Tstms C S S C S C Heat index 89 83 Max heat 92 Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 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 57 73 54 74 57 77 58 78 Temp 74 73 64 59 71 71 61 57 72 72 63 59 74 74 64 59 75 76 Dewpt 74 72 64 59 68 69 60 57 70 71 63 59 72 73 64 59 71 73 PWind dir W NE N SE S S SW S SW Wind char LT LT LT LT LT LT LT LT LT Avg clouds B2 B2 B1 B1 B2 SC B1 SC B2 SC SC SC B1 FW FW FW B1 FW PoP 12hr 60 50 5 10 20 30 10 10 5 Rain shwrs C L C S S C C Tstms C C S $$ IAZ031-160900- SIOUX CITY-WOODBURY IA 42.40N 96.38W Elev. 1210 ft 203 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 64 79 57 81 62 Temp 80 80 74 71 68 65 70 75 78 77 69 64 60 58 71 78 81 79 72 69 65 63 Dewpt 73 73 71 70 67 64 67 68 67 68 65 62 59 58 66 69 71 72 70 68 65 63 RH 79 79 90 97 97 97 90 79 69 74 87 93 96100 84 74 72 79 93 97100100 Wind dir NW NW NW NW NW NW N N NW NW NW NW N N SW S S S SW SW SW S Wind spd 4 3 3 4 6 5 8 9 8 4 2 1 0 0 2 6 8 5 6 4 3 2 Clouds OV B2 B2 SC FW B1 SC FW FW CL FW SC SC SC SC SC SC SC B2 B1 SC B2 PoP 12hr 30 5 5 10 50 QPF 12hr 0 0 0 0.01 0.30 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S S C C C C C Tstms C S S S C S C C C Heat index 84 84 84 Max heat 87 83 86 Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 79 59 75 56 75 58 79 59 79 Temp 77 76 67 61 73 73 63 59 73 73 64 60 76 77 65 60 77 77 Dewpt 74 74 67 61 68 68 63 59 69 70 64 60 71 72 65 60 71 72 PWind dir SE N N SE S S SW S SW Wind char LT LT LT LT LT LT LT LT LT Avg clouds B2 B1 B1 B1 B2 B1 B1 SC B2 SC FW SC B1 FW FW FW B1 FW PoP 12hr 60 60 10 10 30 30 10 10 5 Rain shwrs C L L S C C C Tstms C C C S $$ IAZ014-160900- SPENCER-CLAY IA 43.15N 95.18W Elev. 1325 ft 203 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue 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 54 80 61 Temp 79 77 72 70 66 63 69 74 76 76 65 60 57 55 70 77 79 76 68 66 63 62 Dewpt 73 73 70 69 64 62 65 65 65 66 62 59 56 55 65 65 68 69 67 65 63 62 RH 82 87 93 97 93 97 87 74 69 71 90 96 96100 84 67 69 79 97 97100100 Wind dir W W W NW N N N N N N N NW W SW SW SW SW SW SW SW SW W Wind spd 4 4 4 5 8 9 11 11 10 4 2 1 1 1 3 8 8 6 6 6 5 4 Clouds OV B2 B2 SC SC SC FW SC CL FW FW FW SC SC FW FW SC SC B2 B1 B2 OV PoP 12hr 40 5 0 20 50 QPF 12hr 0.06 0 0 0.01 0.18 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S S C C C C C Tstms C S S C C C C S Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 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 57 75 53 76 56 78 57 79 Temp 76 74 63 58 71 71 59 56 73 72 61 58 75 74 63 58 76 76 Dewpt 71 70 63 58 65 65 58 56 65 67 61 58 69 70 63 58 68 70 PWind dir W N N SE S S SW SW SW Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 B2 B2 B1 B2 SC SC SC B1 SC SC SC B1 FW FW SC SC FW PoP 12hr 60 50 20 10 20 40 20 10 5 Rain shwrs C L C C S S C C S Tstms C C S $$ IAZ022-160900- STORM LAKE-BUENA VISTA 42.60N 95.23W Elev. 1427 ft 203 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 64 78 57 80 63 Temp 79 78 73 70 68 65 69 74 76 76 66 62 60 58 70 77 79 77 69 67 65 64 Dewpt 75 74 71 70 67 64 67 68 68 68 64 62 60 58 66 67 69 71 68 66 65 64 RH 88 88 93100 97 97 93 82 76 76 93100100100 87 71 72 82 97 97100100 Wind dir W W W NW N N N N N NW N NW NW SW SW SW SW SW SW SW SW SW Wind spd 3 2 3 4 6 6 9 10 9 3 2 1 1 1 2 5 5 3 5 6 5 4 Clouds OV B2 B2 SC FW SC SC SC FW CL FW FW SC FW FW FW SC SC B2 B1 B1 B2 PoP 12hr 40 5 0 5 50 QPF 12hr 0.04 0 0 0 0.11 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C C C C C Tstms C S C C C C S Heat index 82 Max heat 85 Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 79 59 75 56 75 58 78 59 79 Temp 76 74 65 60 72 71 60 58 72 72 62 59 74 74 64 60 76 75 Dewpt 73 73 65 60 67 68 60 58 67 69 62 59 71 72 64 60 70 72 PWind dir W NE N SE S S SW SW SW Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 B1 B2 B1 B1 SC SC SC B1 SC FW SC B1 SC FW FW SC FW PoP 12hr 70 70 10 10 20 40 10 10 5 Rain shwrs C L L C S S C S Tstms C C C S $$ MNZ072-160900- MARSHALL-LYON MN 44.47N 95.82W Elev. 1151 ft 203 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue 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 57 82 61 Temp 79 78 72 67 64 61 69 74 77 76 66 62 59 58 73 79 81 78 69 66 64 62 Dewpt 73 72 68 65 62 61 63 62 60 59 60 57 55 55 61 61 64 66 67 65 64 62 RH 82 82 87 93 93100 81 66 56 56 81 84 87 90 66 54 56 67 93 97100100 Wind dir W W NW NW NW NW NW NW NW N NW W SW SW SW SW SW W SW SW W W Wind spd 8 8 9 9 8 8 11 12 11 6 2 4 4 4 6 11 11 8 8 8 5 4 Clouds B2 B1 B1 B1 SC B1 FW CL CL FW FW FW FW SC FW FW SC SC B1 SC SC B1 PoP 12hr 10 0 0 30 40 QPF 12hr 0 0 0 0.03 0.04 Snow 12hr 00-00 00-00 00-00 Rain shwrs L C C C C C Tstms C S C C S S Heat index 83 Max heat 85 83 Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 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 57 76 56 78 60 80 60 81 Temp 76 74 62 57 73 74 60 57 76 76 64 61 78 78 65 61 78 79 Dewpt 66 66 62 57 59 59 58 57 62 64 64 61 66 66 64 61 65 66 PWind dir NW NW N S S SW SW W NW Wind char LT LT LT LT LT GN GN LT LT Avg clouds B1 B1 B1 SC B1 FW FW SC SC FW SC SC SC FW FW SC SC FW PoP 12hr 60 30 10 10 30 30 20 10 5 Rain shwrs C L C S C C S S Tstms S C S S S $$ MNZ081-160900- WINDOM-COTTONWOOD MN 43.87N 95.12W Elev. 1355 ft 203 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 77 55 80 61 Temp 82 80 73 69 64 62 69 73 76 75 65 61 57 57 72 78 80 77 69 66 64 62 Dewpt 73 73 72 67 63 62 62 61 60 60 60 58 56 56 61 60 62 65 67 65 64 62 RH 74 79 97 93 97100 78 66 58 60 84 90 96 96 68 54 54 67 93 97100100 Wind dir W W W NW NW NW N N NW N NW W W SW SW SW SW SW SW SW W W Wind spd 5 4 4 8 9 9 12 12 11 5 2 2 2 2 4 9 10 8 8 6 5 4 Clouds OV OV B2 FW FW SC SC FW CL CL CL FW FW SC FW FW SC SC B1 B1 B1 B2 PoP 12hr 40 5 0 30 40 QPF 12hr 0.07 0 0 0.03 0.23 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C C C C S S C Tstms C S S C S S Heat index 86 82 Max heat 87 81 Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 77 56 74 54 76 57 78 58 79 Temp 76 72 63 57 71 72 60 56 73 74 63 59 75 76 64 59 76 77 Dewpt 65 65 63 57 58 59 58 56 60 63 62 59 64 65 63 59 63 65 PWind dir W NW N SW S S SW SW NW Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 B2 B1 SC B1 SC SC SC B1 SC SC FW SC SC FW SC SC FW PoP 12hr 60 40 10 5 30 30 20 10 5 Rain shwrs C L C S C S C S S Tstms S C S S $$ MNZ089-160900- WORTHINGTON-NOBLES MN 43.65N 95.58W Elev. 1584 ft 203 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue 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 55 79 61 Temp 79 78 72 68 64 61 68 73 76 75 65 60 57 57 70 76 78 76 68 66 63 62 Dewpt 74 74 72 67 63 61 63 62 61 61 60 59 56 56 62 63 65 67 67 66 63 62 RH 85 88100 97 97100 84 68 60 62 84 96 96 96 76 64 64 74 97100100100 Wind dir W W W NW N N N N N N N NW W SW SW SW SW SW SW SW W W Wind spd 5 5 5 8 9 9 11 11 10 5 1 1 2 3 5 9 10 9 9 8 5 4 Clouds OV B1 B2 FW FW SC SC FW FW CL CL FW FW SC FW FW SC SC B1 B1 B2 B2 PoP 12hr 40 5 0 30 40 QPF 12hr 0.05 0 0 0.04 0.15 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C S S C Tstms C S S C C S S S Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 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 56 74 54 75 57 77 58 78 Temp 74 72 63 57 70 71 59 56 72 73 62 59 74 75 63 59 75 76 Dewpt 67 67 63 57 61 61 59 56 63 64 62 59 66 66 63 59 65 66 PWind dir W N N SE S S SW W W Wind char LT LT LT LT LT LT LT LT LT Avg clouds B1 B2 B1 SC B1 SC SC SC B1 SC SC SC SC FW FW SC SC FW PoP 12hr 60 40 5 10 20 30 20 10 5 Rain shwrs C L C S S C C S Tstms S C S $$ SDZ040-160900- BROOKINGS-BROOKINGS SD 44.30N 96.80W Elev. 1617 ft 203 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 57 79 54 81 59 Temp 77 76 69 65 60 58 69 75 78 76 66 60 57 56 70 77 80 78 68 64 62 60 Dewpt 72 69 65 63 60 58 62 60 58 59 58 56 55 54 62 64 66 67 66 64 62 60 RH 85 79 87 93100100 78 60 50 56 75 87 93 93 76 64 62 69 93100100100 Wind dir W NW NW N N NW N NW NW NW N S S S S SW SW W SW SW SW NW Wind spd 10 10 8 6 6 6 10 11 11 6 2 2 1 3 8 13 13 9 5 4 3 2 Clouds OV B1 SC SC SC B1 CL CL CL FW FW FW FW B1 FW SC B1 SC SC SC B1 B2 PoP 12hr 5 0 5 30 30 QPF 12hr 0 0 0 0.01 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C Tstms C C C S S Heat index 82 Max heat 82 Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 77 53 75 52 77 56 80 57 81 Temp 74 73 61 55 72 73 59 55 74 75 63 58 77 78 63 58 78 78 Dewpt 67 67 61 55 60 60 58 55 64 66 63 58 66 66 63 58 65 66 PWind dir W N N SE S S SW SW E Wind char LT LT LT LT GN LT GN LT LT Avg clouds B2 B1 B1 B1 B2 SC SC SC B1 SC SC SC B1 FW FW SC SC FW PoP 12hr 60 30 10 10 30 30 20 10 5 Rain shwrs C L C C C S S Tstms S C S $$ SDZ050-160900- BURKE-GREGORY SD 43.18N 99.29W Elev. 2142 ft 203 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue 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 60 83 62 Temp 74 75 70 67 62 59 67 73 76 77 68 65 62 61 68 78 82 79 70 67 64 62 Dewpt 66 64 62 63 61 59 63 62 61 63 62 61 61 61 67 69 68 69 67 65 64 62 RH 76 69 76 87 97100 87 68 60 62 81 87 97100 97 74 63 72 90 93100100 Wind dir NW N N N N N NE N N NE SE S S S S SW W N S S S S Wind spd 12 11 8 8 6 5 5 6 5 4 4 6 8 11 16 13 10 6 6 5 5 6 Clouds SC CL B1 B1 B1 SC FW CL FW FW SC SC SC B1 FW FW SC SC SC SC B1 B2 PoP 12hr 5 5 30 40 40 QPF 12hr 0 0 0.05 0.07 0.17 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C C C C L Tstms C S S C C C C S S Heat index 85 Max heat 85 Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 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 57 75 57 78 60 81 61 82 Temp 74 74 64 59 70 73 63 59 73 76 65 61 76 78 66 61 78 79 Dewpt 69 69 64 59 64 65 62 59 67 68 64 61 67 68 64 61 66 68 PWind dir NW N SW S S S SW S S Wind char GN LT LT GN GN GN GN LT GN Avg clouds B2 B1 B1 B2 B2 B1 B1 SC B1 SC FW FW SC FW FW FW SC FW PoP 12hr 60 30 20 40 20 30 20 10 5 Rain shwrs L C C S C C S C S Tstms S C C S C S S S $$ SDZ057-160900- CHAMBERLAIN-BRULE SD 43.77N 99.32W Elev. 1565 ft 203 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 58 79 59 84 61 Temp 76 76 70 66 62 59 68 73 77 78 69 65 62 60 69 78 83 81 71 67 65 62 Dewpt 66 65 64 64 62 59 63 63 62 63 63 63 62 60 68 70 69 69 68 67 65 62 RH 71 69 81 93100100 84 71 60 60 81 93100100 97 76 63 67 90100100100 Wind dir NW NW N N N N NE N NW NE SE S S S S SW NW NW E SE S SW Wind spd 12 10 6 5 4 3 3 5 5 4 4 5 6 8 10 9 8 6 4 3 3 4 Clouds FW CL B1 B1 SC B1 CL CL FW FW SC FW SC B1 FW FW SC SC SC B1 SC OV PoP 12hr 5 0 40 20 20 QPF 12hr 0 0 0.02 0.01 0.01 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S S S S S S S L Tstms S S S S S S S Heat index 86 84 Max heat 87 Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 78 56 76 57 80 59 83 60 84 Temp 73 75 64 58 70 74 63 61 74 77 66 61 77 80 66 61 78 81 Dewpt 69 69 64 58 65 65 63 61 68 69 66 61 68 68 66 61 67 68 PWind dir E E SE SE S S S SE SE Wind char LT LT LT LT GN LT LT LT GN Avg clouds B2 B2 B1 B1 B2 SC SC SC B2 SC FW FW SC FW FW FW SC FW PoP 12hr 60 40 20 30 20 10 0 5 5 Rain shwrs L L C S S C C S S S Tstms C C S C S $$ SDZ038-160900- HURON-BEADLE SD 44.38N 98.22W Elev. 1282 ft 203 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue 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 79 58 82 61 Temp 76 74 69 66 61 59 68 74 77 77 67 63 60 60 69 78 81 79 69 66 63 62 Dewpt 69 67 65 63 61 59 63 62 61 62 61 60 60 60 65 68 69 69 67 66 63 62 RH 79 79 87 90100100 84 66 58 60 81 90100100 87 71 67 72 93100100100 Wind dir NW NW N N N NW N NW NW NW SW S S S S SW W W SW S S NE Wind spd 11 10 9 6 6 6 8 9 8 4 3 3 4 6 10 12 10 6 4 3 3 4 Clouds B1 SC SC SC SC SC FW CL FW FW FW FW SC SC SC SC SC SC SC SC B1 B2 PoP 12hr 0 0 20 30 20 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S S S L Tstms S S S S Heat index 84 81 Max heat 86 Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 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 56 76 56 79 59 82 59 82 Temp 75 74 63 57 72 74 61 58 75 76 64 60 78 79 65 60 78 80 Dewpt 67 69 63 57 63 64 61 58 66 69 64 60 67 69 65 60 66 69 PWind dir SW N SE SE S S SW S SE Wind char LT LT LT LT GN LT LT LT LT Avg clouds B2 B2 B1 B1 B2 SC SC SC B1 SC FW SC SC FW FW SC SC FW PoP 12hr 60 30 10 10 20 30 20 5 5 Rain shwrs L C C S C S Tstms S C C $$ SDZ059-160900- MITCHELL-DAVISON SD 43.76N 98.02W Elev. 1312 ft 203 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 59 80 58 83 61 Temp 74 72 68 66 62 59 69 74 78 78 68 63 60 59 70 78 82 80 70 66 64 62 Dewpt 68 65 63 65 62 59 64 64 63 65 64 62 60 59 66 69 71 72 70 66 64 62 RH 82 79 84 97100100 84 71 60 64 87 97100100 87 74 69 77100100100100 Wind dir NW NW N N N NW N N NW N SW S S S S SW W NW S S SW SW Wind spd 10 10 8 8 8 6 9 10 10 5 2 3 4 5 10 13 11 8 4 4 3 3 Clouds B2 SC B1 B1 B1 SC CL CL FW FW FW CL SC SC SC SC SC SC SC SC B1 OV PoP 12hr 5 0 20 30 20 QPF 12hr 0 0 0 0.03 0.07 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S C C S S C Tstms C S S S Heat index 86 84 Max heat 82 88 Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 79 56 76 56 79 59 82 59 83 Temp 75 75 64 58 72 74 62 58 74 76 65 60 77 79 66 60 78 80 Dewpt 70 71 64 58 65 67 62 58 68 71 65 60 70 71 65 60 68 71 PWind dir E N S S S S S S SE Wind char LT LT LT LT GN LT LT LT LT Avg clouds B2 B2 B1 B1 B2 SC SC B1 B2 SC FW SC SC FW FW FW SC FW PoP 12hr 60 30 10 20 30 30 20 5 5 Rain shwrs C L C S C C S Tstms C S $$ SDZ062-160900- SIOUX FALLS-MINNEHAHA SD 43.57N 96.73W Elev. 1424 ft 203 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue 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 56 81 62 Temp 77 76 71 68 64 62 70 76 79 78 68 62 59 58 71 78 80 78 70 67 64 63 Dewpt 73 72 68 66 63 61 64 62 61 61 60 58 57 57 63 65 68 70 68 66 64 63 RH 87 87 90 93 97 97 81 62 54 56 76 87 93 96 76 64 67 76 93 97100100 Wind dir W NW NW N N NW N NW NW NW NW N SE S SW SW SW SW SW SW SW NW Wind spd 5 6 5 6 6 6 8 9 9 6 2 1 0 1 5 10 11 9 4 4 3 2 Clouds OV B2 B1 FW SC B1 FW CL FW FW FW FW SC SC SC SC B1 SC B1 SC B2 OV PoP 12hr 20 5 5 30 30 QPF 12hr 0 0 0 0.27 0.20 Snow 12hr 00-00 00-00 00-00 Rain shwrs L S C C C C C Tstms C S C C S S Heat index 83 Max heat 82 85 Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 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 57 75 55 77 58 80 59 81 Temp 75 74 64 58 73 73 61 57 75 75 64 60 77 78 65 60 78 79 Dewpt 70 70 64 58 64 64 60 57 66 68 64 60 68 69 64 60 67 68 PWind dir W NE NW SE S S SW SW SE Wind char LT LT LT LT LT LT LT LT LT Avg clouds B2 B2 B1 SC B2 SC SC SC B2 SC FW SC B1 FW FW FW B1 FW PoP 12hr 60 40 5 10 30 30 20 10 5 Rain shwrs C L C S C C S S Tstms S C S $$ SDZ070-160900- VERMILLION-CLAY SD 42.95N 96.92W Elev. 1132 ft 203 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue CDT 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 63 79 57 81 62 Temp 81 82 75 70 66 63 70 75 78 77 68 64 60 59 71 78 81 79 71 68 65 63 Dewpt 75 75 72 70 66 63 67 67 67 67 65 63 60 59 67 69 72 74 71 68 65 63 RH 82 79 90100100100 90 76 69 71 90 97100100 87 74 74 85100100100100 Wind dir W NW W NW NW NW N N NW NW NW NW W S SW S SW SW S SW SW S Wind spd 5 4 4 6 6 5 8 10 9 5 3 1 1 2 4 10 11 6 6 5 3 3 Clouds OV OV B1 SC SC B1 FW FW CL FW FW SC B1 SC SC SC SC SC B1 B1 B1 B2 PoP 12hr 30 5 10 40 50 QPF 12hr 0 0 0 0.12 0.41 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C C C C C C C C Tstms C S C C S C C S Heat index 87 88 85 Max heat 90 86 82 86 Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 CDT 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 79 59 75 56 76 59 79 59 80 Temp 76 75 67 60 72 73 63 60 73 74 65 60 76 77 66 60 77 78 Dewpt 74 74 67 60 68 69 63 60 70 72 65 60 72 73 66 60 71 73 PWind dir SE NE N S S S SW S S Wind char LT LT LT LT LT LT LT LT LT Avg clouds B2 B2 B1 B1 B2 SC B1 SC B2 SC FW SC B1 FW FW FW B1 FW PoP 12hr 60 50 10 20 30 30 20 10 5 Rain shwrs C L C S S C C C S Tstms C C S S S $$ SDZ069-160900- YANKTON-YANKTON SD 42.95N 97.39W Elev. 1207 ft 203 PM CDT Sat Aug 15 2026 Date 08/15/26 Sun 08/16/26 Mon 08/17/26 Tue 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 58 81 62 Temp 77 76 72 69 65 62 69 74 78 77 68 64 60 59 69 77 81 78 71 68 65 63 Dewpt 73 73 69 68 65 62 66 66 66 67 65 62 60 59 68 70 73 75 71 68 65 63 RH 87 90 90 97100100 90 76 67 71 90 93100100 97 79 77 91100100100100 Wind dir W NW NW NW N NW N NW NW NW NW W S S S S SW W S SW W S Wind spd 5 4 6 6 8 6 8 10 10 6 3 2 2 2 5 11 11 6 6 4 3 3 Clouds OV B1 B1 SC SC B2 FW CL CL FW FW SC B1 B1 B1 SC SC SC B1 B1 SC B2 PoP 12hr 20 5 10 40 50 QPF 12hr 0 0 0 0.16 0.35 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S C C C C S S C Tstms C S C C S S S S Heat index 85 Max heat 82 87 Date 08/18 Wed 08/19/26 Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 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 59 75 57 76 59 80 59 81 Temp 75 75 66 60 71 73 63 59 73 74 66 61 76 77 66 60 77 78 Dewpt 74 74 66 60 68 69 63 59 70 73 66 61 72 74 66 60 71 74 PWind dir E NE E S S S S S S Wind char LT LT LT LT GN LT LT LT LT Avg clouds B2 B2 B1 B1 B2 SC B1 SC B2 SC FW SC B1 FW FW FW SC FW PoP 12hr 60 50 10 20 30 30 20 10 5 Rain shwrs C L C S S C C S S S Tstms S C S S S S $$