Spot Forecast
Issued by NWS Sioux Falls, SD
Issued by NWS Sioux Falls, SD
628 FNUS73 KFSD 160134 FWSFSD Spot Forecast for Bluff...Vermillion National Weather Service Sioux Falls SD 834 PM CDT Fri May 15 2026 If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION... Northwest winds sustained at 15-20 mph and gusts of 25-30 mph will gradually decrease over the next few hours. Winds will become light and variable overnight. Current temperature is in the mid 80s and will also decrease over the next few hours, with a low near sunrise in the mid 50s. Relative humidity is currently around 17% and expected to gradually increase as winds come down, rising above 30% around midnight. Mixing height will decrease from around 500 ft AGL to 400 ft AGL. Smoke dispersal this evening will be poor. Saturday morning winds will become east-northeast and increase. By early afternoon gusts of 20-25 mph are expected. These winds are expected to continue through the evening and into the overnight. Minimum relative humidity for Saturday will be in the upper 30% range with highs near 90 degrees F. Mixing height will increase to around 6000 ft AGL Saturday afternoon. .REST OF TONIGHT... Min temperature.....Around 54. Max humidity........51 percent. TIME (CDT) 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky cover.......PC PC PC PC PC MCR MCR PC PC Sky (%).........39 33 27 32 32 24 20 30 45 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).0 0 0 0 0 0 0 0 0 Temp............81 75 69 66 63 61 59 58 56 Dewpoint........37 35 35 34 34 34 38 38 38 RH..............21 23 28 30 34 36 45 47 51 20 FT wind dir..N N N NNE NE NE NNE NNE NNE 20 FT wind spd..21 20 16 8 6 5 5 3 3 20 FT wind gust.30 26 22 13 10 8 7 6 6 Smoke Dispersal.PR PR PR PR PR PR PR PR PR .SATURDAY... Max temperature.....Around 86. Min humidity........18 percent. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky cover.......MC MC MC MC PC PC PC PC PC MC MC MC Sky (%).........51 65 65 54 45 35 50 44 41 64 58 78 Weather cov..... Weather type.... Tstm cov........ Temp............55 55 59 65 72 76 79 81 84 84 84 85 Dewpoint........37 37 38 38 38 37 36 35 36 36 37 38 RH..............51 50 45 37 29 24 21 19 18 18 19 19 20 FT wind dir..N N NNE NE ENE ENE E E E E E E 20 FT wind spd..5 5 6 6 7 10 12 13 14 14 15 16 20 FT wind gust.7 8 9 9 13 16 18 21 22 22 23 23 Smoke Dispersal.PR PR PR PR FR GD EX EX EX EX EX EX $$ Forecaster...AP Requested by...Tony Klunder Type of request...WILDFIRE .TAG 2613786.0/FSD .DELDT 05/15/26 .FormatterVersion 2.0.0 .EMAIL tonyk@cityofvermillion.com