Castle Rock, SD Weather Forecast & Current Conditions

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Castle Rock Weather Map
UTC Time: 9/14/2026, 09:53
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Aeronautical Observation: Automated synoptic observations via NWS Gateway.
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Castle Rock, SD Regional Weather

Expires:202609141000;;429196
ASUS43 KFSD 140910
RWRSD 

WEATHER ROUNDUP FOR SOUTH DAKOTA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
400 AM CDT MON SEP 14 2026

NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.



SDZ012>016-024>037-041>051-057-063-072>074-141000-
SOUTHWEST AND SOUTH CENTRAL SOUTH DAKOTA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
RAPID CTY ARPT LGT RAIN  58  57  97 SW12      29.84R TC  14           
PIERRE         MOCLDY    59  55  87 SE15      29.85F TC  15           
CUSTER         TSTM      57  57 100 S7        29.90R FOG     TC  14   
ELLSWORTH AFB  CLOUDY    58  56  92 S21       29.78R THUNDER TC  15   
PHILIP         CLOUDY    58  55  90 SE12      29.80F TC  14           
SPEARFISH      RAIN      55  55 100 E7        29.80F TC  13           
WINNER         CLOUDY    58  54  86 SE16      29.89F TC  14           
$$
 

SKY/WX - Weather  TMP - Temperature  DP - Dew Point  RH - Humidity
WIND - Wind Direction/Speed PRES - Barometric Pressure VSB - Visibility
WCI - Wind Chill Index E13G22 Wind - East Wind 13 mph/Gusts of 22 mph

Castle Rock, SD

Overnight
Thunderstorms
58°14°
70%
Monday
Thunderstorms
72°/ 45° 22°/
20%
Tuesday
Sunny
72°/ 50° 22°/ 10°
30%
Wednesday
Sunny
82°/ 48° 28°/
0%
Thursday
Thunderstorms
78°/ 55° 26°/ 13°
40%
Friday
Rain Showers
78°/ 48° 26°/
60%
Saturday
Thunderstorms
72°/ 45° 22°/
50%

Night: Mostly cloudy with showers and thunderstorms likely. Breezy. Near steady temperature in the upper 50s. Southeast winds 15 to 25 mph with gusts up to 45 mph. Chance of rain 70 percent.

Buffalo, SD

Overnight
Thunderstorms
52°11°
50%
Monday
Thunderstorms
70°/ 42° 21°/
50%
Tuesday
Sunny
70°/ 48° 21°/
40%
Wednesday
Cloudy
78°/ 45° 26°/
0%
Thursday
Thunderstorms
75°/ 52° 24°/ 11°
40%
Friday
Rain Showers
75°/ 48° 24°/
70%
Saturday
Rain Showers
72°/ 45° 22°/
50%

Night: Mostly cloudy with a chance of showers and thunderstorms. Breezy with lows in the lower 50s. Southeast winds 20 to 30 mph with gusts up to 45 mph. Chance of rain 50 percent.

Faith, SD

Overnight
Thunderstorms
52°11°
70%
Monday
Thunderstorms
75°/ 45° 24°/
50%
Tuesday
Sunny
72°/ 48° 22°/
40%
Wednesday
Cloudy
78°/ 48° 26°/
0%
Thursday
Thunderstorms
75°/ 52° 24°/ 11°
40%
Friday
Rain Showers
78°/ 48° 26°/
60%
Saturday
Rain Showers
72°/ 45° 22°/
40%

Night: Showers and thunderstorms likely. Breezy with lows in the lower 50s. Southeast winds 20 to 30 mph with gusts up to 45 mph. Chance of rain 70 percent.

Usta, SD

Overnight
Thunderstorms
58°14°
90%
Monday
Thunderstorms
72°/ 45° 22°/
70%
Tuesday
Sunny
72°/ 48° 22°/
40%
Wednesday
Cloudy
78°/ 45° 26°/
0%
Thursday
Thunderstorms
75°/ 52° 24°/ 11°
40%
Friday
Rain Showers
78°/ 48° 26°/
60%
Saturday
Rain Showers
72°/ 45° 22°/
50%

Night: Showers and thunderstorms. Breezy. Near steady temperature in the upper 50s. Southeast winds 20 to 30 mph with gusts up to 45 mph. Chance of rain 90 percent.

Spearfish, SD

Overnight
Thunderstorms
58°14°
60%
Monday
Thunderstorms
72°/ 45° 22°/
20%
Tuesday
Sunny
72°/ 55° 22°/ 13°
30%
Wednesday
Sunny
80°/ 52° 27°/ 11°
0%
Thursday
Thunderstorms
78°/ 58° 26°/ 14°
40%
Friday
Thunderstorms
78°/ 52° 26°/ 11°
60%
Saturday
Thunderstorms
72°/ 48° 22°/
60%

Night: Partly cloudy with showers and thunderstorms likely. Lows in the upper 50s. South winds 10 to 20 mph with gusts up to 40 mph. Chance of rain 60 percent.

Sturgis, SD

Overnight
Thunderstorms
58°14°
70%
Monday
Cloudy
72°/ 48° 22°/
0%
Tuesday
Sunny
72°/ 52° 22°/ 11°
30%
Wednesday
Sunny
82°/ 52° 28°/ 11°
0%
Thursday
Thunderstorms
78°/ 58° 26°/ 14°
40%
Friday
Thunderstorms
78°/ 52° 26°/ 11°
60%
Saturday
Thunderstorms
72°/ 48° 22°/
50%

Night: Showers and thunderstorms likely. Breezy with lows in the upper 50s. Southeast winds 15 to 25 mph with gusts up to 45 mph. Chance of rain 70 percent.

Ellsworth AFB, SD

Overnight
Thunderstorms
55°13°
70%
Monday
Thunderstorms
75°/ 48° 24°/
40%
Tuesday
Sunny
72°/ 52° 22°/ 11°
40%
Wednesday
Cloudy
82°/ 52° 28°/ 11°
0%
Thursday
Thunderstorms
78°/ 55° 26°/ 13°
50%
Friday
Rain Showers
78°/ 52° 26°/ 11°
50%
Saturday
Thunderstorms
72°/ 48° 22°/
50%

Night: Showers and thunderstorms likely. Breezy with lows in the mid 50s. Southeast winds 20 to 30 mph with gusts up to 45 mph. Chance of rain 70 percent.

Lead, SD

Overnight
Thunderstorms
58°14°
70%
Monday
Thunderstorms
65°/ 38° 18°/
20%
Tuesday
Sunny
65°/ 45° 18°/
20%
Wednesday
Sunny
75°/ 45° 24°/
20%
Thursday
Thunderstorms
70°/ 48° 21°/
50%
Friday
Thunderstorms
70°/ 45° 21°/
60%
Saturday
Thunderstorms
65°/ 42° 18°/
50%

Night: Showers and thunderstorms likely. Near steady temperature in the upper 50s. South winds 10 to 15 mph with gusts up to 35 mph. Chance of rain 70 percent.

Colony, WY

Overnight
Thunderstorms
58°14°
40%
Monday
Cloudy
70°/ 42° 21°/
0%
Tuesday
Sunny
72°/ 48° 22°/
20%
Wednesday
Sunny
80°/ 48° 27°/
0%
Thursday
Thunderstorms
78°/ 52° 26°/ 11°
40%
Friday
Thunderstorms
78°/ 48° 26°/
60%
Saturday
Thunderstorms
72°/ 45° 22°/
50%

Night: Partly cloudy with a chance of showers and thunderstorms. Near steady temperature in the upper 50s. South winds 10 to 20 mph with gusts up to 30 mph. Chance of rain 40 percent.

Lemmon, SD

Overnight
Thunderstorms
52°11°
70%
Monday
Thunderstorms
72°/ 42° 22°/
70%
Tuesday
Sunny
68°/ 45° 20°/
30%
Wednesday
Rain Showers
75°/ 45° 24°/
20%
Thursday
Thunderstorms
75°/ 52° 24°/ 11°
50%
Friday
Rain Showers
75°/ 48° 24°/
60%
Saturday
Rain Showers
70°/ 45° 21°/
50%

Night: Showers and thunderstorms likely. Breezy with lows in the lower 50s. Southeast winds 20 to 30 mph with gusts up to 45 mph. Chance of rain 70 percent.

Sundance, WY

Overnight
Thunderstorms
52°11°
50%
Monday
Thunderstorms
68°/ 40° 20°/
20%
Tuesday
Sunny
70°/ 52° 21°/ 11°
0%
Wednesday
Sunny
78°/ 48° 26°/
0%
Thursday
Thunderstorms
75°/ 55° 24°/ 13°
40%
Friday
Thunderstorms
75°/ 48° 24°/
60%
Saturday
Thunderstorms
70°/ 45° 21°/
50%

Night: Partly cloudy with a chance of showers and thunderstorms. Breezy with lows in the lower 50s. South winds 15 to 25 mph with gusts up to 40 mph. Chance of rain 50 percent.

Box Elder, SD

Overnight
Thunderstorms
55°13°
70%
Monday
Thunderstorms
75°/ 48° 24°/
40%
Tuesday
Sunny
72°/ 52° 22°/ 11°
40%
Wednesday
Cloudy
82°/ 52° 28°/ 11°
0%
Thursday
Thunderstorms
78°/ 55° 26°/ 13°
50%
Friday
Rain Showers
78°/ 52° 26°/ 11°
50%
Saturday
Thunderstorms
75°/ 48° 24°/
40%

Night: Showers and thunderstorms likely. Breezy with lows in the mid 50s. Southeast winds 20 to 30 mph with gusts up to 40 mph. Chance of rain 70 percent.

Moorcroft, WY

Overnight
Thunderstorms
50°10°
40%
Monday
Cloudy
70°/ 38° 21°/
0%
Tuesday
Sunny
75°/ 48° 24°/
20%
Wednesday
Sunny
80°/ 42° 27°/
0%
Thursday
Thunderstorms
80°/ 52° 27°/ 11°
40%
Friday
Thunderstorms
78°/ 45° 26°/
60%
Saturday
Thunderstorms
75°/ 42° 24°/
50%

Night: Partly cloudy with a chance of showers and thunderstorms. Breezy with lows around 50. South winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 40 percent.

Rapid City, SD

Overnight
Thunderstorms
58°14°
70%
Monday
Cloudy
75°/ 48° 24°/
0%
Tuesday
Sunny
72°/ 52° 22°/ 11°
30%
Wednesday
Sunny
82°/ 52° 28°/ 11°
0%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
50%
Friday
Rain Showers
78°/ 52° 26°/ 11°
60%
Saturday
Thunderstorms
72°/ 48° 22°/
50%

Night: Showers and thunderstorms likely. Lows in the upper 50s. South winds 15 to 20 mph with gusts up to 40 mph. Chance of rain 70 percent.

Hill City, SD

Overnight
Thunderstorms
58°14°
70%
Monday
Cloudy
68°/ 42° 20°/
0%
Tuesday
Sunny
65°/ 48° 18°/
20%
Wednesday
Sunny
78°/ 50° 26°/ 10°
20%
Thursday
Thunderstorms
70°/ 52° 21°/ 11°
50%
Friday
Thunderstorms
72°/ 48° 22°/
60%
Saturday
Thunderstorms
68°/ 45° 20°/
50%

Night: Showers and thunderstorms likely. Near steady temperature in the upper 50s. South winds 10 to 15 mph with gusts up to 35 mph. Chance of rain 70 percent.

Bowman, ND

Today
Thunderstorms
70°/ 42° 21°/
60%
Tuesday
Sunny
68°/ 45° 20°/
30%
Wednesday
Sunny
78°/ 42° 26°/
0%
Thursday
Rain Showers
75°/ 50° 24°/ 10°
40%
Friday
Rain Showers
78°/ 48° 26°/
60%
Saturday
Rain Showers
72°/ 45° 22°/
50%

Day: Mostly cloudy with showers likely and a chance of thunderstorms late, then mostly cloudy with a chance of showers in the morning. Sunny in the afternoon. Very windy. Highs around 70. Southeast winds around 15 mph, increasing to west 25 to 30 mph with gusts up to 50 mph in the morning, then, increasing to 35 to 40 mph with gusts up to 60 mph in the afternoon. Chance of rain 60 percent.

Night: Mostly clear. Very windy. Lows in the lower 40s. West winds 30 to 40 mph with gusts up to 60 mph, becoming northwest 15 to 25 mph with gusts up to 35 mph after midnight.

Dupree, SD

Overnight
Thunderstorms
52°11°
N/A
Monday
Thunderstorms
75°/ 45° 24°/
90%
Tuesday
Sunny
72°/ 48° 22°/
40%
Wednesday
Rain Showers
78°/ 48° 26°/
20%
Thursday
Thunderstorms
75°/ 52° 24°/ 11°
50%
Friday
Rain Showers
78°/ 48° 26°/
50%
Saturday
Rain Showers
72°/ 48° 22°/
40%

Night: Showers and thunderstorms. Breezy with lows in the lower 50s. Southeast winds 20 to 30 mph with gusts up to 45 mph.

Hermosa, SD

Overnight
Thunderstorms
58°14°
70%
Monday
Cloudy
78°/ 45° 26°/
0%
Tuesday
Sunny
72°/ 52° 22°/ 11°
40%
Wednesday
Cloudy
85°/ 52° 29°/ 11°
20%
Thursday
Thunderstorms
75°/ 55° 24°/ 13°
60%
Friday
Rain Showers
78°/ 52° 26°/ 11°
50%
Saturday
Thunderstorms
75°/ 48° 24°/
50%

Night: Showers and thunderstorms likely. Lows in the upper 50s. Southeast winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 70 percent.

Hettinger, ND

Today
Thunderstorms
70°/ 42° 21°/
60%
Tuesday
Sunny
68°/ 42° 20°/
20%
Wednesday
Rain Showers
75°/ 42° 24°/
20%
Thursday
Thunderstorms
72°/ 48° 22°/
40%
Friday
Rain Showers
75°/ 45° 24°/
60%
Saturday
Rain Showers
68°/ 42° 20°/
50%

Day: Cloudy with a chance of showers and thunderstorms late, then mostly cloudy with showers likely and a slight chance of thunderstorms in the morning. Sunny in the afternoon. Very windy. Highs around 70. Southeast winds 25 to 30 mph, becoming west 30 to 35 mph in the afternoon. Gusts up to 50 mph, increasing to 55 mph in the afternoon. Chance of rain 60 percent.

Night: Mostly clear. Very windy. Lows in the lower 40s. West winds 25 to 35 mph with gusts up to 50 mph, becoming northwest 15 to 25 mph with gusts up to 35 mph after midnight.

Folsom, SD

Overnight
Thunderstorms
58°14°
70%
Monday
Cloudy
78°/ 45° 26°/
0%
Tuesday
Sunny
72°/ 52° 22°/ 11°
40%
Wednesday
Cloudy
85°/ 52° 29°/ 11°
0%
Thursday
Thunderstorms
78°/ 55° 26°/ 13°
50%
Friday
Rain Showers
80°/ 50° 27°/ 10°
50%
Saturday
Thunderstorms
75°/ 48° 24°/
40%

Night: Showers and thunderstorms likely. Lows in the upper 50s. Southeast winds 10 to 20 mph with gusts up to 35 mph. Chance of rain 70 percent.

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