FNUS73 KFSD 201150 FWSFSD Spot Forecast for Table marsh south of 141...Iowa DNR National Weather Service Sioux Falls SD 650 AM CDT Fri Mar 20 2026 If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION... Winds this morning will be light (gusts around 10 mph), with any prevailing direction north-northwest to northwest into the afternoon hours. Temperatures will warm quickly from the upper 30s into the mid 60s by noon with a high in the upper 70s. Relative humidity values decrease to around 35% later today. Skies should be mostly clear with high clouds over the area. Poor mixing is expected through the morning hours, increasing after mid day. Wind direction shifts to the south through the evening hours, but speeds remain light (around 5 mph). Mostly clear skies with again high clouds tonight and lows in the mid 40s. Much warmer on Saturday with highs in the upper 80s with humidity values around 25%. Winds out of the south Saturday may gust around 20 mph in the afternoon. .REST OF TODAY... Max temperature.....Around 78. Min humidity........34 percent. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky cover.......MCR MCR MCR MCR MCR MCR PC MCR Sky (%).........17 18 16 14 19 22 27 25 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).0 0 0 0 0 0 0 0 Chc of thdr (%).0 0 0 0 0 0 0 0 Temp............55 61 66 70 74 76 78 78 Dewpoint........42 45 48 49 48 48 47 48 RH..............61 56 52 47 40 37 34 35 20 FT wind dir..NNW NNW NNW NW NW NW NW NW 20 FT wind spd..6 6 6 6 7 8 8 6 20 FT wind gust.9 9 10 12 12 13 13 12 Mix hgt (kft)...0.6 0.8 1.2 1.7 2.0 2.8 3.4 3.8 Transp wind dir.N N NNW NNW NW WNW WNW WNW Transp wind spd.9 8 7 8 9 10 13 13 Smoke Dispersal.PR PR PR PR FR FR GD GD .TONIGHT... Min temperature.....Around 45. Max humidity........83 percent. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky cover.......PC MCR MCR MCR MCR MCR MCR MCR MCR MCR MCR MCR Sky (%).........32 23 18 10 10 11 10 12 10 13 15 22 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 0 0 Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 0 0 Temp............76 74 69 63 60 58 56 54 52 51 49 48 Dewpoint........47 48 47 47 47 46 46 44 44 43 43 42 RH..............36 40 45 56 62 64 69 69 74 74 80 80 20 FT wind dir..NW NNW ENE ESE SSW SE SE SSE SSE S S SSE 20 FT wind spd..6 5 3 3 2 3 3 3 3 5 5 5 20 FT wind gust.9 8 7 7 6 6 6 7 7 7 8 8 Mix hgt (kft)...2.3 0.6 0.5 0.4 0.3 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Transp wind dir.WNW NW NNE SSW SW W W SW SW SSW SSW SSW Transp wind spd.9 6 7 7 7 6 6 5 5 5 6 7 Smoke Dispersal.FR PR PR PR PR PR PR PR PR PR PR PR .SATURDAY... Max temperature.....Around 87. Min humidity........24 percent. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky cover.......MCR MCR MCR MCR MCR MCR MCR MCR MCR MCR MCR MCR Sky (%).........13 13 10 15 19 18 18 17 15 12 10 9 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 0 0 Chc of thdr (%).0 0 0 0 0 00 0 0 0 0 0 Temp............47 46 48 53 60 66 73 79 83 86 87 86 Dewpoint........42 41 41 42 44 45 46 46 46 46 46 46 RH..............83 83 77 66 55 47 38 31 27 25 24 25 20 FT wind dir..S S SSE S SSW SSW SSW SSW SSW S S S 20 FT wind spd..6 6 6 6 6 7 8 9 10 12 12 10 20 FT wind gust.8 9 9 10 12 13 14 15 16 17 18 18 Mix hgt (kft)...0.4 0.4 0.4 0.4 0.6 0.8 1.1 1.5 2.3 3.2 4.0 2.9 Transp wind dir.SSW SW SSW SSW WSW W W W WSW SW SSW SSW Transp wind spd.9 12 12 12 12 9 9 9 10 12 12 12 Smoke Dispersal.PR PR PR PR PR PR PR PR FR FR GD FR $$ Forecaster...SG Requested by...Johnathan McAndrews Type of request...PRESCRIBED .TAG 2606662.0/FSD .DELDT 03/20/26 .FormatterVersion 2.0.0 .EMAIL johnathan.mcandrews@dnr.iowa.gov