FNUS73 KFSD 051300 FWSFSD Spot Forecast for Waterman Prairie - Nelson...Iowa DNR National Weather Service Sioux Falls SD 800 AM CDT Tue May 5 2026 If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION... Heading into northwestern IA, a mild and mostly cloudy day is ahead with highs mainly in the mid 50s for the day. As mixing increases, smoke dispersal should gradually improve with strengthening northwesterly winds. Wind gusts between 15-25 mph will be possible. Drier conditions will return this afternoon with relative humidity values in the 25-35 percent range with the driest conditions expected between 3pm to 6pm. .TODAY... Max temperature.....Around 56. Min humidity........27 percent. TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky cover.......MC MC PC MC MC MC MC MC MC MC Sky (%).........61 55 49 60 61 59 57 57 51 60 Weather cov..... Weather type.... Tstm cov........ Chc of pcpn (%).0 0 0 0 0 0 0 0 0 0 Chc of thdr (%).0 0 0 0 0 0 0 0 0 0 Temp............42 46 48 51 53 54 55 55 55 55 Dewpoint........27 27 26 26 25 25 24 24 24 23 RH..............55 47 42 37 33 32 30 30 30 29 20 FT wind dir..NW NW NW NW NW NW NW WNW NW NW 20 FT wind spd..6 7 9 12 13 13 14 15 15 15 20 FT wind gust.10 12 14 16 18 20 20 21 22 21 Mix hgt (kft)...1.2 3.1 5.6 6.9 7.6 8.0 8.5 8.5 8.7 8.6 Transp wind dir.N NNW NW NW WNW WNW WNW WNW WNW NW Transp wind spd.10 14 18 20 20 20 20 21 20 20 Smoke Dispersal.PR GD EX EX EX EX EX EX EX EX .TONIGHT... Min temperature.....Around 32. Max humidity........75 percent. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky cover.......MC MC MC MC MC MC MC MC PC PC PC MCR Sky (%).........62 70 73 74 72 68 67 56 50 38 32 25 Weather cov..... WID WID Weather type.... FST FST 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............55 53 50 47 44 42 40 38 36 34 33 32 Dewpoint........22 23 22 22 23 23 23 24 24 24 24 24 RH..............27 31 33 37 43 46 50 57 61 66 69 72 20 FT wind dir..NW NW NNW NNW N N N N N N N N 20 FT wind spd..14 14 12 10 7 6 6 5 5 3 3 3 20 FT wind gust.21 20 16 14 13 12 9 8 7 6 6 6 Mix hgt (kft)...8.4 7.8 1.2 0.8 0.9 0.7 0.7 0.6 0.5 0.5 0.5 0.5 Transp wind dir.NW NW NNW NNW N N N N NNE NNE NNE NNE Transp wind spd.21 20 17 15 14 13 10 12 9 9 7 7 Smoke Dispersal.EX EX FR PR PR PR PR PR PR PR PR PR .WEDNESDAY... Max temperature.....Around 55. Min humidity........29 percent. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky cover.......MCR MCR PC MCR MCR PC PC PC PC PC PC PC Sky (%).........16 24 28 17 11 32 41 45 46 38 30 34 Weather cov.....WID WID Weather type....FST FST 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............32 33 38 42 46 49 51 52 53 54 55 55 Dewpoint........25 25 26 26 26 25 25 24 24 24 24 24 RH..............75 72 62 53 45 39 36 33 32 31 30 30 20 FT wind dir..N N N NNW NW NW NW NW NW NW NW NW 20 FT wind spd..2 3 3 6 6 8 10 12 12 12 13 13 20 FT wind gust.6 6 6 8 10 13 15 16 17 17 17 17 Mix hgt (kft)...0.5 0.5 1.3 3.5 6.1 7.1 7.6 7.8 8.1 7.9 7.7 7.5 Transp wind dir.N N NNW NW NW NW NW NW NW NW WNW WNW Transp wind spd.6 6 6 10 15 16 16 15 15 15 16 17 Smoke Dispersal.PR PR PR GD EX EX EX EX EX EX EX EX $$ Forecaster...IG Requested by...Steven Burkett Type of request...PRESCRIBED .TAG 2612757.0/FSD .DELDT 05/05/26 .FormatterVersion 2.0.0 .EMAIL steven.burkett@dnr.iowa.gov