177
FNUS73 KUNR 181405
FWSUNR
SPOT FORECAST FOR NEWCASTLE DRAG RACES...WESTON COUNTY OEM
NATIONAL WEATHER SERVICE RAPID CITY SD
805 AM MDT SAT JUL 18 2026
FORECAST IS BASED ON FORECAST START TIME OF 0900 MDT ON JULY 18.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
..HEAT ADVISORY IN EFFECT UNTIL 9 PM MDT SUNDAY
DISCUSSION
HOT WEATHER IS EXPECTED TO CONTINUE TODAY WITH HIGH
TEMPERATURES AROUND 95F, BUT A MAXIMUM HEAT INDEX AROUND 91F DUE
TO THE DRY AIR. A BRIEF, ISOLATED THUNDERSTORM IS POSSIBLE
BETWEEN 300 PM AND MIDNIGHT. IF A THUNDERSTORM DOES DEVELOP, IT
WILL HAVE GUSTY, ERRATIC WINDS.
SUNDAY WILL BE MOSTLY SUNNY VERY HOT WITH A HIGH AROUND 99F, THOUGH
THE DRY AIR WILL RESULT IN A MAXIMUM HEAT INDEX AROUND 95F. WINDS
WILL BE LIGHT FROM THE SOUTH. ISOLATED SHOWERS ARE POSSIBLE BETWEEN
200 PM AND MIDNIGHT.
REST OF TODAY
SKY/WEATHER.........SUNNY (10-20 PERCENT). SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS AFTER 300 PM.
MAX TEMPERATURE.....AROUND 95.
MIN HUMIDITY........20 PERCENT.
CHANCE OF PCPN......20 PERCENT.
MAX APPARENT TEMP...91.
SURFACE WINDS (MPH).SOUTH WINDS 7 TO 12 MPH WITH GUSTS TO AROUND 22 MPH.
RAINFALL AMOUNT.....0.00 INCHES.
TIME (MDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........10 8 14 9 5 16 12 17 25
WEATHER COV..... SCH SCH SCH
WEATHER TYPE.... RW RW RW
TSTM COV........ SCH SCH SCH
CHC OF PCPN (%).0 0 0 10 10 10 20 20 20
TEMP............79 82 84 87 89 92 94 94 94
RH..............50 44 39 33 28 23 21 21 20
HEAT INDEX (F)..80 82 83 85 87 89 91 91 90
SURFACE WND DIR.S S S S S S S SE SE
SURFACE WND SPD.7 8 10 12 12 12 12 12 12
SURFACE WND GST.15 16 18 20 21 21 21 21 22
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT) UNTIL 700 PM
THEN BECOMING MOSTLY CLOUDY (60-70 PERCENT)
UNTIL 200 AM THEN BECOMING PARTLY CLOUDY
(30-40 PERCENT). SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE EVENING.
MIN TEMPERATURE.....AROUND 72.
MAX HUMIDITY........45 PERCENT.
CHANCE OF PCPN......20 PERCENT.
MAX APPARENT TEMP...89.
SURFACE WINDS (MPH).SOUTHEAST WINDS 10 TO 12 MPH SHIFTING TO THE
EAST 7 TO 12 MPH EARLY IN THE EVENING. GUSTS UP
TO 22 MPH.
RAINFALL AMOUNT.....LESS THAN A TENTH OF AN INCH.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........31 40 48 67 58 40 31 43 30 24 32 33
WEATHER COV.....SCH SCH SCH SCH SCH SCH
WEATHER TYPE....RW RW RW RW RW RW
TSTM COV........SCH SCH SCH SCH SCH SCH
CHC OF PCPN (%).20 20 20 20 20 20 10 10 10 10 10 10
TEMP............93 90 87 83 82 81 80 78 77 76 73 73
RH..............21 24 27 30 32 33 34 36 37 37 41 41
HEAT INDEX (F)..89 87 84 81 81 80 79 78 77 76 73 73
SURFACE WND DIR.SE SE E E E E E E E SE SE E
SURFACE WND SPD.12 10 10 12 12 12 10 9 8 8 7 7
SURFACE WND GST.22 22 21 21 21 21 20 18 16 14 14 13
SUNDAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). AN ISOLATED
THUNDERSTORM IS POSSIBLE AFTER 200 PM.
MAX TEMPERATURE.....AROUND 99.
MIN HUMIDITY........17 PERCENT.
CHANCE OF PCPN......10 PERCENT.
MAX APPARENT TEMP...94.
SURFACE WINDS (MPH).SOUTHEAST WINDS AROUND 5 MPH SHIFTING TO THE
SOUTH AROUND MIDDAY. GUSTS UP TO 12 MPH.
RAINFALL AMOUNT.....0.00 INCHES.
FORECASTER...MS
REQUESTED BY...GILBERT NELSON
TYPE OF REQUEST...OTHER
.TAG 2605054.0/UNR
.DELDT 07/18/26
.FORMATTERVERSION 2.0.0
.EMAIL GNELSON@WESTONGOV.COM
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