188
FNUS73 KUNR 191312
FWSUNR

Spot Forecast for Newcastle Shine and Show...Weston County OEM
National Weather Service Rapid City SD
712 AM MDT Sat Sep 19 2026

Forecast is based on forecast start time of 0900 MDT on September 19.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...Low clouds and fog this morning will gradually
dissipate leading to mostly sunny skies but temperatures will
remain on the cooler side with highs remaining in the mid to upper
60s. Heading into the afternoon our attention turns to the system
moving in from the west that will bring a large area of showers
with some embedded thunderstorm activity.There is marginal risk
for severe weather across southern portions of Weston county but
the threat looks low but nonetheless storms will have the risk of
producing some small hail.

.REST OF TODAY...

Sky/weather.........Mostly cloudy (80-90 percent). Slight chance of
                    thunderstorms late in the morning. Chance of
                    rain showers through the day. Chance of
                    thunderstorms in the afternoon.
Max temperature.....Around 68.
Min humidity........55 percent.
Chance of pcpn......40 percent.
Max apparent temp...68.
Max apparent temp...68.
Surface winds (mph).Light winds becoming south 5 to 7 mph with
                    gusts to around 16 mph in the late morning and
                    afternoon.
Rainfall amount.....0.09 inches.

TIME (MDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........76  77  82  78  89  89  89  89  89
Weather cov.....SCH CHC CHC SCH SCH SCH CHC SCH CHC
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........SCH SCH SCH SCH SCH SCH CHC SCH CHC
Chc of pcpn (%).20  30  30  20  20  20  30  20  40
Temp............55  56  58  61  64  66  67  67  68
RH..............96  92  85  78  70  63  59  56  55
Heat index (F)..55  56  58  61  64  66  67  67  68
Wind chill (F)..55  56  58  61  64  66  67  67  68
Surface wnd dir.SE  S   S   S   S   S   S   S   SE
Surface wnd spd.3   5   6   6   7   6   6   7   7
Surface wnd gst.8   10  12  14  14  15  16  16  16

.TONIGHT...

Sky/weather.........Partly cloudy (45-55 percent) then becoming
                    mostly cloudy (70-80 percent). Chance of
                    thunderstorms early in the evening. Rain
                    showers through the night. Slight chance of
                    thunderstorms in the late evening and
                    overnight.
Min temperature.....Around 50.
Max humidity........100 percent.
Chance of pcpn......90 percent.
Max apparent temp...65.
Max apparent temp...65.
Surface winds (mph).Southeast winds 5 to 7 mph shifting to the
                    south around 6 mph after 3 am, then shifting to
                    the southeast around 5 mph after 3 am. Gusts up
                    to 16 mph.
Rainfall amount.....0.38 inches.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........48  54  72  74  71  77  77  96  86  82  72  82
Weather cov.....DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF
Weather type....RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW  RW
Tstm cov........CHC CHC CHC SCH SCH SCH SCH SCH SCH SCH SCH SCH
Chc of pcpn (%).80  80  80  80  80  80  90  90  90  90  90  90
Temp............65  62  61  59  57  57  58  57  57  56  54  54
RH..............65  72  75  78  83  83  75  80  77  83  90  86
Heat index (F)..65  62  61  59  57  57  58  57  57  56  54  54
Wind chill (F)..65  62  61  59  57  57  58  57  57  56  54  54
Surface wnd dir.E   E   E   E   E   E   SE  SE  SE  S   SE  E
Surface wnd spd.7   7   6   6   6   6   5   6   6   6   5   5
Surface wnd gst.14  14  15  16  15  14  13  13  14  14  13  10

$$
Forecaster...AW
Requested by...Gilbert Nelson
Type of request...OTHER
.TAG 2605059.0/UNR
.DELDT 09/19/26
.FormatterVersion 2.0.0
.EMAIL gnelson@westongov.com