131
FNUS73 KUNR 121348
FWSUNR

Spot Forecast for Boulder Hill SAR...Penn Co SAR
National Weather Service Rapid City SD
748 AM MDT Sun Oct 12 2025

Forecast is based on forecast start time of 0800 MDT on October 12.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...Look for increasing northwest winds behind a cold front
that moved through earlier this morning. Otherwise skies will be
mostly sunny with temperatures steady in the mid 50s. There are
minimal chances for sprinkles late this morning.

.REST OF TODAY...

Sky/weather.........Mostly sunny (25-35 percent).
Max temperature.....Around 58.
Min humidity........35 percent.
Chance of pcpn......10 percent.
Max apparent temp...56.
Surface winds (mph).Northwest winds 6 to 9 mph increasing to 10 to
                    14 mph with gusts to around 30 mph late in the
                    morning.
Rainfall amount.....0.00 inches.
Snowfall amount.....0.0 inches.

TIME (MDT)      8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........45  56  44  39  16  17  16  8   14  5
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).10  10  10  10  0   0   0   0   0   0
Temp............56  56  56  56  56  55  56  56  54  51
RH..............57  53  49  45  41  40  35  35  38  41
Wind chill (F)..56  56  56  56  56  55  56  56  54  51
Surface wnd dir.N   NW  NW  W   W   W   W   W   NW  NW
Surface wnd spd.6   8   9   12  13  14  14  13  12  10
Surface wnd gst.7   12  13  15  30  30  30  29  28  23

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent). Areas of frost
                    late in the evening. Widespread frost
                    overnight.
Min temperature.....Around 32.
Max humidity........89 percent.
Chance of pcpn......0 percent.
Min apparent temp...31.
Surface winds (mph).Northwest winds 5 to 8 mph with gusts to around
                    18 mph in the evening and overnight becoming
                    light.
Rainfall amount.....0.00 inches.
Snowfall amount.....0.0 inches.

TIME (MDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........5   7   7   8   10  5   4   16  11  9   6   7
Weather cov.....                    ARS ARS ARS WID WID WID WID
Weather type....                    FST FST FST FST FST FST FST
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............49  45  42  40  38  37  36  35  34  33  32  32
RH..............44  53  60  64  70  75  79  78  85  85  89  85
Wind chill (F)..46  41  37  35  33  32  31  31  31  33  32  32
Surface wnd dir.NW  NW  NW  NW  NW  NW  NW  W   SW  S   S   S
Surface wnd spd.8   8   8   8   7   6   6   5   3   2   2   2
Surface wnd gst.18  15  13  13  10  9   9   7   7   7   7   7

.COLUMBUS DAY...

Sky/weather.........Mostly sunny (25-35 percent). Widespread frost
                    early in the morning, then areas of frost early
                    in the morning.
Max temperature.....Around 54.
Min humidity........40 percent.
Chance of pcpn......0 percent.
Surface winds (mph).Light winds becoming southeast 5 to 10 mph with
                    gusts to around 26 mph early in the morning.
Rainfall amount.....0.00 inches.

TIME (MDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........7   19  9   12  17  23  29  37  45  53  50  46
Weather cov.....WID WID ARS
Weather type....FST FST FST
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............32  34  37  40  43  46  48  51  53  54  53  52
RH..............85  78  70  64  57  51  47  42  41  40  41  43
Surface wnd dir.S   S   S   SE  SE  SE  SE  SE  SE  SE  SE  SE
Surface wnd spd.3   3   5   6   7   8   9   9   10  10  10  9
Surface wnd gst.7   8   10  13  16  20  23  25  25  26  25  24

$$
Forecaster...DH
Requested by...James Dietz
Type of request...SAR
.TAG 2523461.0/UNR
.DELDT 10/12/25
.FormatterVersion 2.0.0
.EMAIL james.dietz@pennco.org