Mystic, SD Weather Forecast & Current Conditions

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Mystic Weather Map
UTC Time: 10/18/2026, 08:21
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
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Mystic, SD Regional Weather

Expires:202610180900;;298700
ASUS43 KFSD 180810
RWRSD 

WEATHER ROUNDUP FOR SOUTH DAKOTA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
300 AM CDT SUN OCT 18 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>074-180900-
SOUTHWEST AND SOUTH CENTRAL SOUTH DAKOTA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
RAPID CTY ARPT CLEAR     52  29  41 NW13      29.95S TC  11           
PIERRE         CLEAR     44  32  62 S3        29.89S TC   7           
CUSTER         CLEAR     50  23  34 NW7       30.08F TC  10           
ELLSWORTH AFB  CLEAR     52  31  45 NW13      29.92R TC  11           
PHILIP         CLEAR     36  32  85 W6        29.91S TC   2           
PINE RIDGE     CLEAR     40  33  76 CALM      30.00S TC   4           
SPEARFISH      CLEAR     52  27  37 CALM      30.03R TC  11           
WINNER         CLEAR     55  29  36 S20G32    29.94F TC  13           
$$
 

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

Mystic, SD

Overnight
Clear
45°7°
0%
Sunday
Sunny
58°/ 35° 14°/ 2°
0%
Monday
Sunny
60°/ 42° 16°/ 6°
0%
Tuesday
Sunny
68°/ 42° 20°/ 6°
0%
Wednesday
Sunny
65°/ 45° 18°/ 7°
0%
Thursday
Cloudy
70°/ 48° 21°/ 9°
20%
Friday
Rain
65°/ 42° 18°/ 6°
60%
Saturday
Rain
52°11°
50%

Night: Mostly clear. Lows in the mid 40s. Northwest winds around 5 mph.

Hill City, SD

Overnight
Clear
48°9°
0%
Sunday
Sunny
62°/ 40° 17°/ 4°
0%
Monday
Sunny
58°/ 42° 14°/ 6°
0%
Tuesday
Sunny
68°/ 48° 20°/ 9°
0%
Wednesday
Sunny
65°/ 48° 18°/ 9°
0%
Thursday
Sunny
70°/ 52° 21°/ 11°
20%
Friday
Rain
68°/ 48° 20°/ 9°
50%
Saturday
Rain
55°13°
40%

Night: Mostly clear. Near steady temperature in the upper 40s. Northwest winds 5 to 10 mph with gusts up to 20 mph.

Sturgis, SD

Overnight
Clear
52°11°
0%
Sunday
Sunny
65°/ 42° 18°/ 6°
0%
Monday
Sunny
62°/ 45° 17°/ 7°
0%
Tuesday
Sunny
72°/ 50° 22°/ 10°
0%
Wednesday
Sunny
68°/ 52° 20°/ 11°
0%
Thursday
Sunny
78°/ 55° 26°/ 13°
20%
Friday
Rain
75°/ 52° 24°/ 11°
50%
Saturday
Rain
58°14°
40%

Night: Mostly clear. Near steady temperature in the lower 50s. West winds 5 to 10 mph with gusts up to 20 mph.

Rapid City, SD

Overnight
Clear
52°11°
0%
Sunday
Sunny
65°/ 42° 18°/ 6°
0%
Monday
Sunny
60°/ 45° 16°/ 7°
0%
Tuesday
Sunny
75°/ 50° 24°/ 10°
0%
Wednesday
Sunny
68°/ 50° 20°/ 10°
0%
Thursday
Sunny
75°/ 55° 24°/ 13°
20%
Friday
Rain
75°/ 52° 24°/ 11°
50%
Saturday
Rain
60°16°
40%

Night: Mostly clear. Lows in the lower 50s. Northwest winds 5 to 10 mph with gusts up to 20 mph.

Sundance, WY

Overnight
Clear
45°7°
0%
Sunday
Sunny
62°/ 38° 17°/ 3°
0%
Monday
Sunny
62°/ 45° 17°/ 7°
0%
Tuesday
Sunny
68°/ 45° 20°/ 7°
0%
Wednesday
Sunny
65°/ 50° 18°/ 10°
0%
Thursday
Cloudy
72°/ 52° 22°/ 11°
20%
Friday
Rain
68°/ 45° 20°/ 7°
60%
Saturday
Rain
52°11°
50%

Night: Mostly clear. Lows in the mid 40s. East winds 5 to 10 mph.

Spearfish, SD

Overnight
Clear
48°9°
0%
Sunday
Sunny
62°/ 42° 17°/ 6°
0%
Monday
Sunny
62°/ 45° 17°/ 7°
0%
Tuesday
Sunny
72°/ 48° 22°/ 9°
0%
Wednesday
Sunny
65°/ 52° 18°/ 11°
0%
Thursday
Cloudy
78°/ 55° 26°/ 13°
20%
Friday
Rain
72°/ 48° 22°/ 9°
60%
Saturday
Rain
55°13°
50%

Night: Mostly clear. Lows in the upper 40s. West winds 5 to 10 mph.

Hermosa, SD

Overnight
Clear
50°10°
0%
Sunday
Sunny
65°/ 42° 18°/ 6°
0%
Monday
Sunny
58°/ 45° 14°/ 7°
0%
Tuesday
Sunny
75°/ 48° 24°/ 9°
0%
Wednesday
Sunny
68°/ 48° 20°/ 9°
0%
Thursday
Sunny
75°/ 55° 24°/ 13°
20%
Friday
Rain
75°/ 52° 24°/ 11°
50%
Saturday
Rain
62°17°
40%

Night: Mostly clear. Lows around 50. Northwest winds 5 to 10 mph with gusts up to 20 mph.

Box Elder, SD

Overnight
Clear
45°7°
0%
Sunday
Sunny
68°/ 40° 20°/ 4°
0%
Monday
Sunny
62°/ 42° 17°/ 6°
0%
Tuesday
Sunny
75°/ 48° 24°/ 9°
0%
Wednesday
Sunny
68°/ 48° 20°/ 9°
0%
Thursday
Sunny
78°/ 55° 26°/ 13°
20%
Friday
Rain
78°/ 52° 26°/ 11°
40%
Saturday
Rain
62°17°
40%

Night: Mostly clear. Lows in the mid 40s. West winds 5 to 10 mph.

Newcastle, WY

Overnight
Clear
40°4°
0%
Sunday
Sunny
65°/ 40° 18°/ 4°
0%
Monday
Sunny
58°/ 42° 14°/ 6°
0%
Tuesday
Sunny
68°/ 45° 20°/ 7°
0%
Wednesday
Sunny
68°/ 45° 20°/ 7°
0%
Thursday
Cloudy
72°/ 50° 22°/ 10°
20%
Friday
Rain
68°/ 48° 20°/ 9°
50%
Saturday
Rain
55°13°
40%

Night: Clear. Lows around 40. Northwest winds around 5 mph.

Pringle, SD

Overnight
Clear
48°9°
0%
Sunday
Sunny
65°/ 42° 18°/ 6°
0%
Monday
Sunny
58°/ 45° 14°/ 7°
0%
Tuesday
Sunny
68°/ 48° 20°/ 9°
0%
Wednesday
Sunny
65°/ 50° 18°/ 10°
0%
Thursday
Sunny
72°/ 55° 22°/ 13°
20%
Friday
Rain
68°/ 50° 20°/ 10°
50%
Saturday
Rain
58°14°
40%

Night: Mostly clear. Lows in the upper 40s. Northwest winds 5 to 10 mph with gusts up to 20 mph.

Colony, WY

Overnight
Clear
45°7°
0%
Sunday
Sunny
65°/ 38° 18°/ 3°
0%
Monday
Sunny
65°/ 40° 18°/ 4°
0%
Tuesday
Sunny
72°/ 42° 22°/ 6°
0%
Wednesday
Sunny
65°/ 48° 18°/ 9°
0%
Thursday
Sunny
78°/ 52° 26°/ 11°
20%
Friday
Rain
72°/ 45° 22°/ 7°
60%
Saturday
Rain
55°13°
50%

Night: Mostly clear. Lows in the mid 40s. West winds 5 to 10 mph.

Rochelle, WY

Overnight
Clear
42°6°
0%
Sunday
Sunny
65°/ 38° 18°/ 3°
0%
Monday
Sunny
60°/ 40° 16°/ 4°
0%
Tuesday
Sunny
70°/ 42° 21°/ 6°
0%
Wednesday
Sunny
68°/ 45° 20°/ 7°
0%
Thursday
Cloudy
72°/ 50° 22°/ 10°
20%
Friday
Rain
68°/ 45° 20°/ 7°
60%
Saturday
Rain
55°13°
40%

Night: Clear. Lows in the lower 40s. Northwest winds 5 to 10 mph.

Belle Fourche, SD

Overnight
Clear
45°7°
0%
Sunday
Sunny
65°/ 38° 18°/ 3°
0%
Monday
Sunny
62°/ 40° 17°/ 4°
0%
Tuesday
Sunny
72°/ 45° 22°/ 7°
0%
Wednesday
Sunny
65°/ 48° 18°/ 9°
0%
Thursday
Sunny
75°/ 52° 24°/ 11°
20%
Friday
Rain
75°/ 48° 24°/ 9°
60%
Saturday
Rain
58°14°
50%

Night: Mostly clear. Lows in the mid 40s. Northwest winds 5 to 10 mph.

Ellsworth AFB, SD

Overnight
Clear
45°7°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
62°/ 42° 17°/ 6°
0%
Tuesday
Sunny
75°/ 48° 24°/ 9°
0%
Wednesday
Sunny
68°/ 48° 20°/ 9°
0%
Thursday
Sunny
78°/ 55° 26°/ 13°
20%
Friday
Rain
78°/ 50° 26°/ 10°
50%
Saturday
Rain
62°17°
40%

Night: Mostly clear. Lows in the mid 40s. Northwest winds 5 to 10 mph.

Folsom, SD

Overnight
Clear
45°7°
0%
Sunday
Sunny
68°/ 42° 20°/ 6°
0%
Monday
Sunny
62°/ 42° 17°/ 6°
0%
Tuesday
Sunny
75°/ 48° 24°/ 9°
0%
Wednesday
Sunny
70°/ 45° 21°/ 7°
0%
Thursday
Cloudy
78°/ 52° 26°/ 11°
20%
Friday
Rain
75°/ 50° 24°/ 10°
50%
Saturday
Rain
65°18°
40%

Night: Mostly clear. Lows in the mid 40s. West winds 5 to 10 mph.

Hot Springs, SD

Overnight
Clear
45°7°
0%
Sunday
Sunny
68°/ 42° 20°/ 6°
0%
Monday
Sunny
58°/ 45° 14°/ 7°
0%
Tuesday
Sunny
72°/ 48° 22°/ 9°
0%
Wednesday
Sunny
68°/ 48° 20°/ 9°
0%
Thursday
Cloudy
75°/ 55° 24°/ 13°
20%
Friday
Rain
72°/ 52° 22°/ 11°
50%
Saturday
Rain
62°17°
40%

Night: Mostly clear. Lows in the mid 40s. West winds 5 to 10 mph with gusts up to 20 mph.

Kyle, SD

Overnight
Clear
42°6°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
62°/ 42° 17°/ 6°
0%
Tuesday
Sunny
75°/ 48° 24°/ 9°
0%
Wednesday
Sunny
68°/ 48° 20°/ 9°
0%
Thursday
Sunny
78°/ 55° 26°/ 13°
20%
Friday
Rain
78°/ 52° 26°/ 11°
50%
Saturday
Rain
65°18°
40%

Night: Mostly clear. Lows in the lower 40s. Southwest winds 10 to 15 mph.

Oral, SD

Overnight
Clear
45°7°
0%
Sunday
Sunny
65°/ 42° 18°/ 6°
0%
Monday
Sunny
62°/ 42° 17°/ 6°
0%
Tuesday
Sunny
75°/ 48° 24°/ 9°
0%
Wednesday
Sunny
68°/ 48° 20°/ 9°
0%
Thursday
Cloudy
78°/ 55° 26°/ 13°
20%
Friday
Rain
75°/ 50° 24°/ 10°
50%
Saturday
Rain
62°17°
40%

Night: Clear. Lows in the mid 40s. Southwest winds 10 to 15 mph.

Ardmore, SD

Overnight
Clear
45°7°
0%
Sunday
Sunny
65°/ 42° 18°/ 6°
0%
Monday
Sunny
60°/ 42° 16°/ 6°
0%
Tuesday
Sunny
72°/ 48° 22°/ 9°
0%
Wednesday
Sunny
68°/ 48° 20°/ 9°
0%
Thursday
Cloudy
75°/ 52° 24°/ 11°
20%
Friday
Rain
72°/ 50° 22°/ 10°
50%
Saturday
Rain
60°16°
40%

Night: Clear. Lows in the mid 40s. West winds 10 to 15 mph.

Faith, SD

Overnight
Cloudy
45°7°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
60°/ 38° 16°/ 3°
0%
Tuesday
Sunny
72°/ 45° 22°/ 7°
0%
Wednesday
Sunny
68°/ 45° 20°/ 7°
0%
Thursday
Sunny
75°/ 52° 24°/ 11°
20%
Friday
Rain
75°/ 48° 24°/ 9°
50%
Saturday
Rain
58°14°
40%

Night: Partly cloudy. Lows in the mid 40s. Northwest winds 5 to 10 mph.

Names listed above may include county names.

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