Point Forecast Matrices
Issued by NWS Sioux Falls, SD
Issued by NWS Sioux Falls, SD
580 FOUS53 KFSD 171353 PFMFSD Point Forecast Matrices National Weather Service Sioux Falls SD 853 AM CDT Mon Aug 17 2026 IAZ012-172100- SIOUX CENTER-SIOUX IA 43.08N 96.18W Elev. 1446 ft 853 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 79 61 76 57 74 Temp 71 77 79 78 70 66 63 62 69 73 74 73 67 64 60 58 66 71 73 71 Dewpt 64 64 67 67 68 66 63 62 69 72 73 72 67 64 60 58 66 68 69 69 RH 79 64 67 69 93100100100100 97 97 97100100100100100 90 87 93 Wind dir SW SW SW SW S S SW SW N SE NW NE NE E NE E E SE S E Wind spd 3 8 10 8 6 5 2 2 2 3 3 3 2 2 2 2 2 2 1 1 Clouds SC SC SC SC B1 FW B1 B2 B2 SC SC SC B2 B1 B2 B2 B1 SC SC SC PoP 12hr 5 50 50 10 10 QPF 12hr 0 0.05 0.15 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S S C Tstms S C S S C Heat index 81 Max heat 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 56 76 59 80 59 77 57 75 Temp 61 57 73 74 64 60 77 76 64 59 75 74 62 59 73 73 Dewpt 61 57 69 72 64 60 73 74 64 59 68 69 61 59 69 71 PWind dir SE S S SW NW N E SE Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 SC FW FW FW SC FW FW FW SC FW FW SC B2 B1 PoP 12hr 40 20 20 10 10 5 10 10 Rain shwrs C C S S Tstms C C S $$ IAZ031-172100- SIOUX CITY-WOODBURY IA 42.40N 96.38W Elev. 1210 ft 853 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 63 78 60 76 Temp 72 79 82 80 73 69 65 64 70 74 76 76 69 66 63 61 67 73 74 74 Dewpt 64 66 68 69 69 67 65 64 70 72 73 72 69 66 63 61 67 68 69 69 RH 76 64 63 69 87 93100100100 93 90 87100100100100100 84 84 84 Wind dir S SW SW S S S S SE SW S SW N E NE NE NE E SE S SE Wind spd 2 8 9 6 5 5 3 3 3 4 4 3 2 2 2 2 3 3 2 3 Clouds SC SC SC SC SC SC SC B1 B1 SC B1 B1 B1 B2 B2 B2 B1 B1 SC SC PoP 12hr 20 40 50 5 20 QPF 12hr 0 0.12 0.30 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C S C S S C Tstms C C C S C S C Heat index 85 83 Max heat 84 89 84 Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 57 77 60 81 60 78 59 76 Temp 63 58 73 75 65 61 79 79 66 61 76 76 64 60 74 74 Dewpt 63 58 69 71 65 61 74 74 66 61 69 70 64 60 70 71 PWind dir SE S S SW S N E SE Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 SC FW FW FW SC FW FW FW SC FW FW SC B1 B1 PoP 12hr 40 20 20 20 10 5 10 10 Rain shwrs C C S S S S Tstms C C S S S $$ IAZ014-172100- SPENCER-CLAY IA 43.15N 95.18W Elev. 1325 ft 853 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 61 78 57 76 Temp 70 77 78 76 67 64 63 62 69 74 76 73 65 62 59 58 66 73 75 72 Dewpt 60 60 62 65 65 64 63 62 68 69 70 69 65 62 59 58 64 64 64 65 RH 71 56 58 69 93100100100 97 84 82 87100100100100 93 73 69 79 Wind dir SW SW SW SW S SW SW SW W N N N NE N N NE E E SE NE Wind spd 3 6 9 8 6 6 4 3 4 4 5 4 3 3 3 2 3 3 3 3 Clouds SC FW SC FW B1 SC SC B2 B2 SC SC B1 B1 B1 B2 B1 SC SC SC SC PoP 12hr 5 40 60 10 20 QPF 12hr 0 0.01 0.11 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs L C S C S S C Tstms C C S C 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 54 77 58 80 58 78 56 76 Temp 59 55 74 74 62 59 77 76 64 58 75 74 61 57 73 72 Dewpt 59 55 65 67 62 59 70 71 62 58 65 65 58 57 65 67 PWind dir SE S S SW W N NE SE Wind char LT LT LT LT LT LT LT LT Avg clouds SC B1 SC FW FW FW SC FW FW FW SC FW FW FW B1 SC PoP 12hr 30 20 20 20 10 5 10 20 Rain shwrs C S S S S S S S S Tstms C S S $$ IAZ022-172100- STORM LAKE-BUENA VISTA 42.60N 95.23W Elev. 1427 ft 853 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 63 77 59 75 Temp 70 76 78 76 68 67 65 63 69 73 74 73 67 64 62 60 66 72 74 72 Dewpt 61 63 64 66 66 66 65 63 69 71 72 71 67 64 62 60 66 67 67 68 RH 73 64 62 71 93 97100100100 93 93 93100100100100100 84 79 87 Wind dir W SW SW SW S SW W SW W SW W NW NE NE NE NE E E SE SE Wind spd 3 6 8 5 6 6 5 4 4 4 4 3 2 3 3 2 3 2 2 2 Clouds SC FW SC SC SC B1 FW B1 B2 SC SC B1 B1 B1 B2 B2 B1 SC SC SC PoP 12hr 0 30 70 10 10 QPF 12hr 0 0.04 0.21 0.01 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C L Tstms S C C C C Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 57 77 60 80 60 78 58 76 Temp 61 58 74 74 63 61 77 76 65 61 75 74 62 59 73 72 Dewpt 61 58 67 69 63 61 72 73 65 60 67 68 61 59 67 69 PWind dir SE S S SW W N NE SE Wind char LT LT LT LT LT LT LT LT Avg clouds SC B1 SC FW FW FW SC FW FW FW SC FW FW SC B1 SC PoP 12hr 20 20 20 20 20 5 10 10 Rain shwrs S S S S S S S Tstms S S S S $$ MNZ072-172100- MARSHALL-LYON MN 44.47N 95.82W Elev. 1151 ft 853 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 56 77 Temp 73 80 81 79 69 66 64 62 68 73 75 74 65 61 58 56 66 74 76 75 Dewpt 58 58 61 65 66 64 63 62 64 64 64 63 63 61 58 56 60 59 59 59 RH 59 47 51 62 90 93 97100 87 73 69 69 93100100100 81 59 56 58 Wind dir SW SW SW SW SW SW W W N N N N NE W S SW SE S W SE Wind spd 5 9 11 9 8 6 5 4 4 5 6 5 3 2 2 1 2 3 4 4 Clouds FW SC B1 B1 B1 SC SC B2 B1 B2 B2 B1 SC SC SC B1 SC FW SC SC PoP 12hr 30 30 60 5 20 QPF 12hr 0.05 0.04 0.11 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S C C S S Tstms C S S C 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 57 81 62 82 60 79 58 79 Temp 61 58 78 78 66 63 80 79 64 60 76 77 62 59 76 77 Dewpt 59 58 61 63 65 63 65 63 60 57 58 58 58 57 60 62 PWind dir S SW SW W NW N NW S Wind char LT LT GN GN LT LT LT LT Avg clouds SC SC FW FW FW FW SC FW FW FW SC FW FW SC B1 SC PoP 12hr 10 10 20 10 10 0 5 10 Rain shwrs S S $$ MNZ081-172100- WINDOM-COTTONWOOD MN 43.87N 95.12W Elev. 1355 ft 853 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 61 76 56 75 Temp 72 78 79 77 69 66 63 62 69 73 74 73 65 61 58 56 66 72 75 73 Dewpt 58 56 58 65 64 65 63 62 65 64 65 64 64 61 58 56 60 58 58 60 RH 61 47 49 67 84 97100100 87 73 74 73 97100100100 81 61 55 64 Wind dir SW SW SW SW SW SW W W N NE N N N N N N E SE SE S Wind spd 4 6 11 10 8 8 4 3 3 4 4 4 2 1 1 1 2 2 3 2 Clouds FW FW B1 SC B1 FW B1 B2 B2 SC B1 B1 SC SC SC B1 FW SC SC B1 PoP 12hr 10 30 60 5 20 QPF 12hr 0.01 0.32 0.22 0 0.02 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C C S S C Tstms S C C S S S Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 55 77 60 80 58 77 56 76 Temp 60 56 74 75 64 61 78 77 64 59 74 75 62 58 73 73 Dewpt 59 56 60 63 63 61 65 65 61 58 59 59 58 57 60 62 PWind dir S S SW W W N NW SE Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC FW FW FW FW SC FW FW FW SC FW FW FW B1 SC PoP 12hr 30 10 20 20 20 5 10 20 Rain shwrs C S S S S S S Tstms S S S $$ MNZ089-172100- WORTHINGTON-NOBLES MN 43.65N 95.58W Elev. 1584 ft 853 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 61 76 56 75 Temp 71 77 78 77 68 66 63 62 68 72 74 73 64 61 58 56 66 71 74 72 Dewpt 60 61 63 65 66 65 63 62 66 66 66 65 64 61 58 56 61 61 61 62 RH 68 58 60 67 93 97100100 93 81 76 76100100100100 84 71 64 71 Wind dir SW SW SW SW SW SW W W N NE N NE NE NE NE NE E SE S S Wind spd 4 8 11 10 8 8 5 4 4 3 5 4 3 2 2 2 3 2 3 3 Clouds SC FW SC SC B1 FW B1 B1 B1 SC B1 B1 B1 SC B1 B1 SC SC SC SC PoP 12hr 10 40 50 10 30 QPF 12hr 0 0.09 0.13 0 0.08 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C S C C C Tstms S C S 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 55 77 59 80 59 77 57 75 Temp 60 56 73 75 64 60 77 76 64 59 74 74 61 58 72 73 Dewpt 60 56 63 65 63 60 67 67 62 57 60 61 58 57 62 64 PWind dir S S SW SW W N NE SE Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC FW FW FW SC FW FW FW FW FW FW SC B1 B1 PoP 12hr 30 10 20 20 10 5 10 20 Rain shwrs C S S S S S Tstms C S S $$ SDZ040-172100- BROOKINGS-BROOKINGS SD 44.30N 96.80W Elev. 1617 ft 853 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 59 77 53 77 Temp 71 77 81 80 69 64 61 60 68 73 75 74 64 59 56 54 66 73 75 73 Dewpt 60 62 66 66 66 63 61 60 64 65 64 64 63 59 56 54 61 60 61 61 RH 68 60 60 62 90 97100100 87 76 69 71 97100100100 84 64 62 66 Wind dir S SW SW W SW S S NE NE NE NE NE NE E SE E SE S S S Wind spd 5 11 13 8 4 5 3 3 4 5 5 5 3 2 2 2 3 4 4 3 Clouds FW SC B1 SC B1 SC B2 OV B1 B1 B2 B1 SC B1 B1 B2 SC SC SC SC PoP 12hr 10 40 50 5 20 QPF 12hr 0 0.02 0.08 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C S C S S Tstms S S S S C S S Heat index 83 Max heat 84 Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 54 79 59 81 56 79 56 78 Temp 59 55 76 77 64 59 78 78 63 57 76 76 61 57 74 76 Dewpt 59 55 63 65 64 59 66 64 60 55 59 59 57 55 62 63 PWind dir S S SW W N N E SE Wind char LT GN LT GN LT LT LT GN Avg clouds SC SC SC FW FW FW SC FW CL FW SC FW FW SC B1 SC PoP 12hr 20 10 20 10 5 5 10 20 Rain shwrs S S S Tstms S S $$ SDZ050-172100- BURKE-GREGORY SD 43.18N 99.29W Elev. 2142 ft 853 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 78 60 74 Temp 71 82 86 83 73 68 64 63 68 74 77 76 68 65 62 61 65 71 73 71 Dewpt 64 66 64 64 63 65 64 63 67 67 65 66 65 64 62 61 65 65 65 67 RH 79 58 48 53 71 90100100 97 79 67 71 90 97100100100 81 76 87 Wind dir SW SW W SW S SW SW SW N N N N E W S S S S S S Wind spd 11 9 8 5 6 6 8 5 6 6 8 5 4 4 4 5 6 9 8 8 Clouds CL SC SC SC B1 SC B1 B2 B1 B2 B1 SC B2 B1 B1 B2 B1 B1 B1 SC PoP 12hr 5 40 10 20 60 QPF 12hr 0.01 0.07 0 0 0.30 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C S S C C L L C Tstms S C C S S S C C C Heat index 84 Max heat 84 87 81 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 58 80 62 82 61 79 61 79 Temp 63 59 75 78 66 62 79 80 67 62 76 77 66 63 75 77 Dewpt 63 59 67 68 65 62 67 68 63 60 63 65 63 61 66 68 PWind dir S S S NW E E SE SE Wind char LT GN GN GN LT GN GN BZ Avg clouds B1 SC SC FW FW FW SC FW FW SC SC FW FW SC B2 B1 PoP 12hr 50 5 10 5 10 5 20 20 Rain shwrs C S S S Tstms C S S S $$ SDZ057-172100- CHAMBERLAIN-BRULE SD 43.77N 99.32W Elev. 1565 ft 853 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 61 79 59 76 Temp 73 82 86 85 74 68 65 62 69 75 78 77 69 65 62 60 66 72 75 73 Dewpt 64 66 64 65 64 67 65 62 67 67 66 66 66 65 62 60 66 66 66 66 RH 73 58 48 51 71 97100100 93 76 67 69 90100100100100 81 74 79 Wind dir SW SW W W SE S SE SE E N NW NE E SE SE SE S S S E Wind spd 9 6 5 4 5 5 5 4 5 5 6 5 4 4 3 4 5 8 8 8 Clouds CL SC FW B1 SC SC SC B2 B1 B2 B1 B1 B2 B1 B1 B2 B1 SC SC SC PoP 12hr 5 40 20 10 60 QPF 12hr 0 0.04 0.01 0 0.16 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C S C C L L C Tstms S S S S S S C C Heat index 84 Max heat 85 88 83 Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 57 82 61 84 60 80 61 80 Temp 64 59 76 80 67 63 80 81 67 61 77 78 66 63 76 78 Dewpt 64 59 68 68 67 62 68 67 64 60 63 64 63 62 67 68 PWind dir S S S N NE E E SE Wind char LT LT LT LT LT GN GN BZ Avg clouds SC SC SC FW FW FW SC FW FW SC SC FW FW B1 B2 B1 PoP 12hr 40 0 10 5 5 5 20 20 Rain shwrs C S S Tstms C S S $$ SDZ038-172100- HURON-BEADLE SD 44.38N 98.22W Elev. 1282 ft 853 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 61 79 58 77 Temp 71 80 85 83 72 67 64 62 69 76 77 76 67 63 60 58 67 74 75 74 Dewpt 62 65 65 65 64 65 64 62 65 65 65 65 64 63 60 58 63 64 64 66 RH 73 60 51 55 76 93100100 87 69 67 69 90100100100 87 71 69 76 Wind dir S SW W W S SW E N NE N NE N NE E SE SE SE S S SE Wind spd 9 10 8 5 4 4 4 4 5 5 5 5 4 3 3 3 4 6 5 4 Clouds FW SC SC B1 B1 SC B2 OV B1 B2 SC B1 SC B1 B1 B1 B1 SC B1 SC PoP 12hr 10 40 30 5 50 QPF 12hr 0 0.06 0.04 0 0.14 Snow 12hr 00-00 00-00 00-00 Rain shwrs C C S C C C S Tstms C C S S S C S Heat index 82 85 Max heat 83 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 58 81 61 83 59 80 60 79 Temp 63 59 76 79 66 61 79 80 65 59 77 78 64 61 76 77 Dewpt 63 59 67 69 66 61 67 67 61 57 61 64 60 58 64 68 PWind dir SE S S NW N N E SE Wind char LT GN LT LT LT LT LT GN Avg clouds SC SC SC FW FW FW SC FW FW FW SC FW FW SC B1 B1 PoP 12hr 20 5 10 5 5 5 10 10 Rain shwrs S S Tstms S $$ SDZ059-172100- MITCHELL-DAVISON SD 43.76N 98.02W Elev. 1312 ft 853 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 62 80 58 78 Temp 74 82 87 85 73 68 64 63 70 74 78 77 68 64 61 59 67 73 76 74 Dewpt 63 66 67 65 66 66 64 63 67 68 68 68 67 64 61 59 65 66 66 67 RH 69 58 52 51 79 93100100 90 82 71 74 97100100100 93 79 71 79 Wind dir S SW SW SW S SW S SE NE NE NE N N E SE SE S S SW SE Wind spd 9 11 9 4 5 5 4 4 4 6 6 6 4 3 3 3 5 6 6 6 Clouds FW SC SC B1 B1 SC SC B1 SC B1 B1 SC B1 B1 B1 B2 B1 SC SC B1 PoP 12hr 5 50 20 5 50 QPF 12hr 0 0.14 0.10 0 0.07 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C S S S S C C C Tstms S S S S S S C C Heat index 84 90 Max heat 85 91 84 Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 57 81 61 84 59 81 60 80 Temp 63 58 75 79 66 61 79 81 65 60 77 78 64 61 75 78 Dewpt 63 58 68 71 66 61 71 71 64 59 64 67 63 60 66 69 PWind dir S S S W N NE E SE Wind char LT GN LT LT LT LT LT GN Avg clouds SC B1 SC FW FW FW SC FW FW FW SC FW FW SC B1 B1 PoP 12hr 40 5 20 5 5 5 20 10 Rain shwrs C S S S Tstms C S S $$ SDZ062-172100- SIOUX FALLS-MINNEHAHA SD 43.57N 96.73W Elev. 1424 ft 853 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 62 79 58 77 Temp 74 81 83 83 73 67 64 63 70 75 78 76 67 63 60 58 68 74 76 74 Dewpt 62 64 67 67 68 66 64 63 67 68 68 67 65 63 60 58 64 63 64 65 RH 66 56 59 59 84 97100100 90 79 71 74 93100100100 87 69 66 74 Wind dir S SW SW SW SW SW SW E NE NE NE NE NE NE E E SE S S SE Wind spd 5 10 11 8 5 3 2 2 3 4 5 5 3 2 2 2 3 4 4 4 Clouds FW SC SC B1 B1 SC SC B2 B1 SC B1 SC B1 B1 B1 B2 SC B1 SC B1 PoP 12hr 5 50 50 10 40 QPF 12hr 0 0.04 0.06 0 0.12 Snow 12hr 00-00 00-00 00-00 Rain shwrs S S C C S S C C C Tstms S S S S S S C C Heat index 86 85 Max heat 83 88 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 57 79 61 82 60 80 59 78 Temp 62 58 75 77 65 61 79 79 65 60 77 78 64 60 75 76 Dewpt 62 58 66 68 65 61 69 69 63 58 62 63 59 58 64 66 PWind dir S S S SW N N E SE Wind char LT LT LT LT LT LT LT GN Avg clouds B1 B1 SC FW FW FW SC FW FW FW SC FW FW SC B1 B1 PoP 12hr 40 10 20 10 10 5 10 10 Rain shwrs C C S S S Tstms C C S $$ SDZ070-172100- VERMILLION-CLAY SD 42.95N 96.92W Elev. 1132 ft 853 AM CDT Mon Aug 17 2026 Date Mon 08/17/26 Tue 08/18/26 Wed 08/19/26 CDT 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 84 63 78 59 75 Temp 74 80 84 83 73 69 65 64 70 75 77 76 69 66 63 60 68 72 75 73 Dewpt 66 67 70 70 70 68 65 64 70 73 73 73 69 66 63 60 68 69 69 70 RH 76 65 63 65 90 97100100100 94 87 90100100100100100 90 82 90 Wind dir S SW SW S S S SW S S SE NW N NE E E E SE SE S S Wind spd 4 10 10 8 6 4 4 4 4 4 5 4 3 3 3 2 4 4 3 4 Clouds SC SC SC SC SC FW B1 B2 B1 SC B1 SC B1 B2 B2 B2 B1 B1 SC SC PoP 12hr 20 40 50 5 30 QPF 12hr 0 0.11 0.07 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C S S S C C C Tstms C C S S S S C Heat index 82 88 86 Max heat 83 89 83 Date Thu 08/20/26 Fri 08/21/26 Sat 08/22/26 Sun 08/23/26 CDT 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 58 77 61 82 60 78 59 76 Temp 64 59 74 75 66 62 79 79 67 61 76 76 64 61 74 74 Dewpt 64 59 70 73 66 62 74 75 67 61 69 71 64 61 70 72 PWind dir SE S S SW W N E SE Wind char LT LT LT LT LT LT LT GN Avg clouds B1 B1 SC FW FW FW SC FW FW FW SC FW FW SC B2 B1 PoP 12hr 50 10 20 5 5 5 10 10 Rain shwrs C C S S Tstms C C S $$ SDZ069-172100- YANKTON-YANKTON SD 42.95N 97.39W Elev. 1207 ft 853 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 63 79 60 75 Temp 73 80 85 83 74 70 65 64 70 74 77 76 69 66 63 61 67 72 75 73 Dewpt 65 68 69 71 69 68 65 64 70 72 72 73 69 66 63 61 67 69 69 70 RH 76 67 59 67 84 93100100100 93 85 90100100100100100 90 82 90 Wind dir S S SW S SW SW SW SE E SE W N N E E E SE SE S S Wind spd 5 11 10 8 6 5 4 4 4 5 5 4 4 3 3 3 4 5 4 4 Clouds FW SC SC SC B1 SC B1 B2 SC FW B2 SC B1 B1 B1 B2 B2 B1 SC B1 PoP 12hr 20 40 40 10 40 QPF 12hr 0.03 0.28 0.03 0 0.06 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C S C C C Tstms S C C S S C Heat index 82 89 88 Max heat 85 92 86 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 58 78 61 83 61 79 60 77 Temp 64 59 74 77 66 62 78 79 66 61 76 77 65 61 74 75 Dewpt 64 59 70 73 66 62 74 75 66 61 68 70 64 61 70 72 PWind dir S S S SW N NE E SE Wind char LT LT LT LT LT LT LT GN Avg clouds B1 B1 SC FW FW FW SC FW FW FW SC FW FW SC B1 B1 PoP 12hr 50 10 20 5 5 5 10 10 Rain shwrs C C S Tstms C C $$