409
FNUS73 KUNR 241928
FWSUNR
SPOT FORECAST FOR MOUNT RUSHMORE FIREWORKS...NATIONAL PARK SERVICE
NATIONAL WEATHER SERVICE RAPID CITY SD
128 PM MDT WED JUN 24 2026
FORECAST IS BASED ON FORECAST START TIME OF 0600 MDT ON JUNE 25.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.
DISCUSSION
A COUPLE OF DISTURBANCES WILL BRING CHANCES FOR
SHOWERS AND THUNDERSTORMS OVER THE NEXT COUPLE OF DAYS. THE FIRST
DISTURBANCE ARRIVES THURSDAY MORNING WITH SOME RAIN SHOWERS AND
ISOLATED THUNDERSTORMS. THE SECOND DISTURBANCE ARRIVES LATER IN
THE AFTERNOON, WHICH WILL CONTAIN THUNDERSTORMS, SOME OF WHICH MAY
BE STRONG TO SEVERE (2 OUT OF 5 SLIGHT RISK) AFTER 500 PM.
CONFIDENCE FOR THUNDERSTORMS IS MEDIUM, BUT LOW FOR SEVERITY LATE
THURSDAY. THERE IS A MARGINAL RISK (1 OUT OF 5) FOR SEVERE
THUNDERSTORMS FRIDAY AFTERNOON AND EVENING. ANY THUNDERSTORM WILL
HAVE GUSTY, ERRATIC WINDS.
GUSTY SOUTHERLY WINDS (14-24 MPH GUSTS) WILL DEVELOP THURSDAY
AFTERNOON AND PERSIST INTO FRIDAY, BUT SUSTAINED WINDS WILL ONLY
BE 5-15 MPH. HIGHS IN THE UPPER 50S THURSDAY RISE TO THE UPPER 70S
FRIDAY. EXCELLENT RELATIVE HUMIDITY RECOVERY IS EXPECTED THURSDAY
NIGHT.
THURSDAY
SKY/WEATHER.........CLOUDY (85-95 PERCENT). RAIN SHOWERS LIKELY IN
THE MORNING, THEN CHANCE OF RAIN SHOWERS IN THE
AFTERNOON.CHANCE OF THUNDERSTORMS MAINLY IN THE
AFTERNOON.
MAX TEMPERATURE.....AROUND 57.
MIN HUMIDITY........68 PERCENT.
CHANCE OF PCPN......60 PERCENT.
MAX APPARENT TEMP...57.
SURFACE WINDS (MPH).LIGHT WINDS BECOMING SOUTHEAST 5 TO 7 MPH WITH
GUSTS TO AROUND 24 MPH LATE IN THE MORNING.
RAINFALL AMOUNT.....0.04 INCHES.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........92 92 90 90 91 91 93 91 88 85 91 92
WEATHER COV.....CHC CHC CHC LKY LKY LKY CHC CHC CHC CHC CHC CHC
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........SCH SCH SCH CHC CHC CHC CHC CHC CHC CHC CHC CHC
CHC OF PCPN (%).30 30 30 60 60 60 50 50 50 40 40 40
TEMP............52 53 55 56 56 56 56 56 57 57 57 57
RH..............69 71 69 69 74 77 80 80 77 77 77 80
HEAT INDEX (F)..52 53 55 56 56 56 56 56 57 57 57 57
SURFACE WND DIR.SW S SE SE SE SE SE SE SE SE SE SE
SURFACE WND SPD.1 1 2 3 3 5 5 6 6 7 7 7
SURFACE WND GST.9 10 13 14 16 18 21 22 23 24 24 24
THURSDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN
SLIGHT CHANCE OF RAIN SHOWERS OVERNIGHT.
MIN TEMPERATURE.....AROUND 55.
MAX HUMIDITY........90 PERCENT.
CHANCE OF PCPN......50 PERCENT.
MAX APPARENT TEMP...56.
SURFACE WINDS (MPH).SOUTH WINDS 5 TO 7 MPH BECOMING LIGHT. GUSTS UP
TO 23 MPH.
RAINFALL AMOUNT.....0.04 INCHES.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........94 95 97 97 92 89 70 63 62 57 54 52
WEATHER COV.....CHC CHC CHC CHC CHC CHC SCH SCH SCH SCH SCH SCH
WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW
TSTM COV........CHC CHC CHC SCH SCH SCH
CHC OF PCPN (%).50 50 50 40 40 40 20 20 20 20 20 20
TEMP............56 55 56 55 55 55 55 55 55 55 55 55
RH..............80 83 77 83 83 83 86 90 86 86 83 83
HEAT INDEX (F)..56 55 56 55 55 55 55 55 55 55 55 55
SURFACE WND DIR.S SE S S S S S S S SW S S
SURFACE WND SPD.7 7 6 6 6 6 6 5 5 5 5 3
SURFACE WND GST.23 22 21 20 21 21 21 20 18 18 17 15
FRIDAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
CHANCE OF RAIN SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 77.
MIN HUMIDITY........43 PERCENT.
CHANCE OF PCPN......30 PERCENT.
MAX APPARENT TEMP...77.
SURFACE WINDS (MPH).LIGHT WINDS BECOMING SOUTH 5 TO 6 MPH WITH
GUSTS TO AROUND 18 MPH IN THE AFTERNOON.
RAINFALL AMOUNT.....0.00 INCHES.
TIME (MDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........40 29 33 37 34 31 28 30 31 33 39 45
WEATHER COV..... CHC CHC CHC CHC CHC CHC
WEATHER TYPE.... RW RW RW RW RW RW
TSTM COV........ SCH SCH SCH CHC CHC CHC
CHC OF PCPN (%).0 0 0 0 0 0 30 30 30 30 30 30
TEMP............56 58 62 65 68 71 73 75 76 77 76 74
RH..............80 80 72 68 63 57 53 48 46 43 45 48
HEAT INDEX (F)..56 58 62 65 68 71 73 75 76 77 76 74
SURFACE WND DIR.S S S S S S S S S S S S
SURFACE WND SPD.2 2 2 2 3 3 5 6 6 6 6 5
SURFACE WND GST.10 9 9 9 10 13 15 16 18 18 18 17
FORECASTER...EH
REQUESTED BY...OWEN MURNANE
TYPE OF REQUEST...OTHER
.TAG 2616114.0/UNR
.DELDT 06/24/26
.FORMATTERVERSION 2.0.0
.EMAIL OWEN_MURNANE@NPS.GOV
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