Old Town, SD Weather Forecast & Current Conditions

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Old Town Weather Map
UTC Time: 9/18/2026, 22:11
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Old Town, SD Regional Weather

Expires:202609182300;;677925
ASUS43 KFSD 182210
RWRSD 

WEATHER ROUNDUP FOR SOUTH DAKOTA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
500 PM CDT FRI SEP 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>074-182300-
SOUTHWEST AND SOUTH CENTRAL SOUTH DAKOTA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
RAPID CTY ARPT MOSUNNY   76  59  55 N6        30.04F TC  24           
PIERRE         CLOUDY    67  65  93 NE6       29.99S TC  19           
CUSTER         MOSUNNY   70  58  65 E10       30.15F TC  21           
ELLSWORTH AFB  SUNNY     76  60  57 NE8       30.02S TC  24           
PHILIP         CLOUDY    71  62  73 N8        30.01S TC  22           
SPEARFISH      SUNNY     75  59  57 NE9       30.09S TC  24           
WINNER         CLOUDY    75  66  73 NW10      30.01R TC  24           
$$
 

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

Old Town, SD

Late Afternoon
Cloudy
75°/ 58° 24°/ 14°
70%
Saturday
Thunderstorms
65°/ 52° 18°/ 11°
70%
Sunday
Thunderstorms
58°/ 50° 14°/ 10°
N/A
Monday
Rain Showers
62°/ 50° 17°/ 10°
50%
Tuesday
Cloudy
72°/ 55° 22°/ 13°
30%
Wednesday
Thunderstorms
78°/ 55° 26°/ 13°
30%
Thursday
Sunny
78°/ 55° 26°/ 13°
0%
Friday
Cloudy
78°26°
0%

Day: Partly cloudy. Highs in the mid 70s. Northeast winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. Patchy fog after midnight. Lows in the upper 50s. Southeast winds 5 to 10 mph. Chance of rain 70 percent.

Box Elder, SD

Late Afternoon
Cloudy
72°/ 55° 22°/ 13°
50%
Saturday
Thunderstorms
68°/ 52° 20°/ 11°
70%
Sunday
Thunderstorms
62°/ 50° 17°/ 10°
N/A
Monday
Rain Showers
65°/ 48° 18°/
40%
Tuesday
Cloudy
72°/ 55° 22°/ 13°
20%
Wednesday
Cloudy
78°/ 55° 26°/ 13°
20%
Thursday
Cloudy
78°/ 55° 26°/ 13°
0%
Friday
Cloudy
80°27°
0%

Day: Partly cloudy. Near steady temperature in the lower 70s. Northeast winds 5 to 10 mph.

Night: Cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Patchy fog after midnight. Lows in the mid 50s. East winds 5 to 10 mph. Chance of rain 50 percent.

Sturgis, SD

Late Afternoon
Cloudy
75°/ 58° 24°/ 14°
70%
Saturday
Thunderstorms
65°/ 55° 18°/ 13°
70%
Sunday
Thunderstorms
58°/ 50° 14°/ 10°
N/A
Monday
Rain Showers
62°/ 52° 17°/ 11°
50%
Tuesday
Cloudy
72°/ 55° 22°/ 13°
0%
Wednesday
Thunderstorms
78°/ 55° 26°/ 13°
30%
Thursday
Sunny
78°/ 55° 26°/ 13°
0%
Friday
Cloudy
80°27°
0%

Day: Partly cloudy. Near steady temperature in the mid 70s. Northeast winds 5 to 10 mph with gusts up to 20 mph.

Night: Mostly cloudy. Showers likely with a chance of thunderstorms after midnight. Patchy fog after midnight. Lows in the upper 50s. Southeast winds 5 to 10 mph. Chance of rain 70 percent.

Hill City, SD

Late Afternoon
Thunderstorms
75°/ 55° 24°/ 13°
70%
Saturday
Thunderstorms
62°/ 50° 17°/ 10°
70%
Sunday
Thunderstorms
55°/ 48° 13°/
N/A
Monday
Rain Showers
58°/ 48° 14°/
70%
Tuesday
Rain Showers
65°/ 52° 18°/ 11°
30%
Wednesday
Thunderstorms
72°/ 52° 22°/ 11°
40%
Thursday
Sunny
72°/ 52° 22°/ 11°
0%
Friday
Cloudy
72°22°
0%

Day: Partly cloudy with a slight chance of showers and thunderstorms. Highs in the mid 70s. East winds 5 to 10 mph. Chance of rain 20 percent.

Night: Mostly cloudy with showers likely with a chance of thunderstorms. Lows in the mid 50s. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 70 percent.

Hermosa, SD

Late Afternoon
Cloudy
78°/ 58° 26°/ 14°
70%
Saturday
Thunderstorms
68°/ 52° 20°/ 11°
70%
Sunday
Thunderstorms
62°/ 50° 17°/ 10°
N/A
Monday
Rain Showers
62°/ 50° 17°/ 10°
50%
Tuesday
Cloudy
72°/ 55° 22°/ 13°
30%
Wednesday
Thunderstorms
78°/ 55° 26°/ 13°
20%
Thursday
Cloudy
78°/ 55° 26°/ 13°
0%
Friday
Cloudy
80°27°
0%

Day: Partly cloudy. Highs in the upper 70s. Northeast winds 5 to 10 mph with gusts up to 20 mph.

Night: Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. Patchy fog after midnight. Lows in the upper 50s. Northeast winds 5 to 10 mph. Gusts up to 20 mph in the evening. Chance of rain 70 percent.

Lead, SD

Late Afternoon
Thunderstorms
75°/ 50° 24°/ 10°
70%
Saturday
Thunderstorms
60°/ 45° 16°/
70%
Sunday
Thunderstorms
52°/ 42° 11°/
N/A
Monday
Rain Showers
58°/ 45° 14°/
70%
Tuesday
Rain Showers
68°/ 48° 20°/
20%
Wednesday
Thunderstorms
72°/ 48° 22°/
40%
Thursday
Rain Showers
72°/ 48° 22°/
20%
Friday
Cloudy
72°22°
0%

Day: Mostly sunny with a slight chance of showers and thunderstorms. Highs in the mid 70s. Northeast winds around 5 mph. Chance of rain 20 percent.

Night: Mostly cloudy with a chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Patchy fog after midnight. Lows around 50. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 70 percent.

Folsom, SD

Late Afternoon
Cloudy
78°/ 55° 26°/ 13°
50%
Saturday
Thunderstorms
68°/ 52° 20°/ 11°
70%
Sunday
Thunderstorms
62°/ 48° 17°/
N/A
Monday
Rain Showers
65°/ 48° 18°/
40%
Tuesday
Cloudy
75°/ 52° 24°/ 11°
30%
Wednesday
Thunderstorms
80°/ 55° 27°/ 13°
20%
Thursday
Cloudy
80°/ 55° 27°/ 13°
0%
Friday
Cloudy
82°28°
0%

Day: Partly cloudy. Highs in the upper 70s. Northeast winds 5 to 10 mph with gusts up to 20 mph.

Night: Mostly cloudy. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Patchy fog after midnight. Lows in the mid 50s. East winds 5 to 10 mph. Chance of rain 50 percent.

Ellsworth AFB, SD

Late Afternoon
Cloudy
75°/ 55° 24°/ 13°
50%
Saturday
Thunderstorms
68°/ 52° 20°/ 11°
70%
Sunday
Thunderstorms
60°/ 50° 16°/ 10°
90%
Monday
Rain Showers
65°/ 48° 18°/
30%
Tuesday
Cloudy
72°/ 55° 22°/ 13°
0%
Wednesday
Thunderstorms
78°/ 55° 26°/ 13°
20%
Thursday
Cloudy
80°/ 55° 27°/ 13°
0%
Friday
Cloudy
80°27°
0%

Day: Partly cloudy. Near steady temperature in the mid 70s. Northeast winds 5 to 10 mph with gusts up to 20 mph.

Night: Cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Patchy fog after midnight. Lows in the mid 50s. East winds 5 to 10 mph. Chance of rain 50 percent.

Pringle, SD

Late Afternoon
Cloudy
78°/ 58° 26°/ 14°
70%
Saturday
Thunderstorms
65°/ 52° 18°/ 11°
70%
Sunday
Thunderstorms
58°/ 50° 14°/ 10°
90%
Monday
Rain Showers
62°/ 50° 17°/ 10°
50%
Tuesday
Rain Showers
68°/ 55° 20°/ 13°
30%
Wednesday
Thunderstorms
75°/ 55° 24°/ 13°
20%
Thursday
Cloudy
75°/ 55° 24°/ 13°
0%
Friday
Cloudy
75°24°
0%

Day: Partly cloudy. Near steady temperature in the upper 70s. Southeast winds 5 to 10 mph with gusts up to 20 mph.

Night: Showers likely with a chance of thunderstorms. Lows in the upper 50s. Northeast winds 5 to 10 mph. Gusts up to 25 mph in the evening. Chance of rain 70 percent.

Kyle, SD

Late Afternoon
Cloudy
75°/ 55° 24°/ 13°
50%
Saturday
Thunderstorms
68°/ 52° 20°/ 11°
70%
Sunday
Thunderstorms
62°/ 50° 17°/ 10°
N/A
Monday
Rain Showers
65°/ 48° 18°/
40%
Tuesday
Cloudy
75°/ 55° 24°/ 13°
30%
Wednesday
Cloudy
80°/ 55° 27°/ 13°
20%
Thursday
Cloudy
80°/ 55° 27°/ 13°
0%
Friday
Cloudy
82°28°
0%

Day: Partly cloudy. Near steady temperature in the mid 70s. Northeast winds 5 to 10 mph with gusts up to 20 mph.

Night: Mostly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Patchy fog after midnight. Lows in the mid 50s. East winds 5 to 10 mph. Chance of rain 50 percent.

Spearfish, SD

Late Afternoon
Sunny
75°/ 55° 24°/ 13°
70%
Saturday
Thunderstorms
65°/ 52° 18°/ 11°
70%
Sunday
Thunderstorms
58°/ 50° 14°/ 10°
90%
Monday
Rain Showers
62°/ 48° 17°/
50%
Tuesday
Cloudy
75°/ 55° 24°/ 13°
0%
Wednesday
Thunderstorms
78°/ 55° 26°/ 13°
30%
Thursday
Sunny
78°/ 55° 26°/ 13°
0%
Friday
Cloudy
80°27°
0%

Day: Mostly sunny. Near steady temperature in the mid 70s. Northeast winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. Patchy fog after midnight. Lows in the mid 50s. Southeast winds 5 to 10 mph. Chance of rain 70 percent.

Belle Fourche, SD

Late Afternoon
Cloudy
72°/ 55° 22°/ 13°
50%
Saturday
Thunderstorms
65°/ 52° 18°/ 11°
70%
Sunday
Thunderstorms
60°/ 48° 16°/
90%
Monday
Rain Showers
65°/ 48° 18°/
50%
Tuesday
Cloudy
72°/ 52° 22°/ 11°
0%
Wednesday
Thunderstorms
78°/ 52° 26°/ 11°
20%
Thursday
Sunny
78°/ 55° 26°/ 13°
0%
Friday
Cloudy
80°27°
0%

Day: Partly cloudy. Near steady temperature in the lower 70s. East winds 5 to 10 mph with gusts up to 20 mph.

Night: Mostly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Patchy fog after midnight. Lows in the mid 50s. East winds 5 to 10 mph. Gusts up to 20 mph in the evening. Chance of rain 50 percent.

Faith, SD

Late Afternoon
Mostly Cloudy
72°/ 55° 22°/ 13°
0%
Saturday
Rain Showers
65°/ 52° 18°/ 11°
70%
Sunday
Rain Showers
60°/ 48° 16°/
90%
Monday
Rain Showers
62°/ 48° 17°/
30%
Tuesday
Cloudy
72°/ 52° 22°/ 11°
0%
Wednesday
Rain Showers
78°/ 52° 26°/ 11°
20%
Thursday
Cloudy
78°/ 55° 26°/ 13°
0%
Friday
Cloudy
78°26°
0%

Day: Mostly cloudy. Near steady temperature in the lower 70s. Northeast winds 5 to 10 mph with gusts up to 20 mph.

Night: Cloudy. Patchy fog after midnight. Lows in the mid 50s. East winds 5 to 10 mph. Gusts up to 20 mph in the evening.

Sundance, WY

Late Afternoon
Sunny
78°/ 55° 26°/ 13°
70%
Saturday
Thunderstorms
65°/ 52° 18°/ 11°
70%
Sunday
Thunderstorms
58°/ 48° 14°/
90%
Monday
Rain Showers
62°/ 48° 17°/
70%
Tuesday
Cloudy
72°/ 52° 22°/ 11°
0%
Wednesday
Thunderstorms
75°/ 52° 24°/ 11°
30%
Thursday
Sunny
75°/ 55° 24°/ 13°
0%
Friday
Cloudy
78°26°
0%

Day: Mostly sunny. Near steady temperature in the upper 70s. Northeast winds 5 to 10 mph.

Night: Showers likely with a chance of thunderstorms. Patchy fog after midnight. Lows in the mid 50s. Southeast winds 5 to 10 mph. Chance of rain 70 percent.

Hot Springs, SD

Late Afternoon
Cloudy
80°/ 58° 27°/ 14°
70%
Saturday
Thunderstorms
68°/ 55° 20°/ 13°
70%
Sunday
Thunderstorms
62°/ 50° 17°/ 10°
90%
Monday
Rain Showers
65°/ 50° 18°/ 10°
30%
Tuesday
Rain Showers
75°/ 55° 24°/ 13°
30%
Wednesday
Thunderstorms
78°/ 55° 26°/ 13°
20%
Thursday
Cloudy
78°/ 55° 26°/ 13°
0%
Friday
Cloudy
80°27°
0%

Day: Partly cloudy. Near steady temperature around 80. East winds 10 to 15 mph with gusts up to 25 mph.

Night: Mostly cloudy with a chance of thunderstorms. Showers likely in the evening, then a chance of showers after midnight. Lows in the upper 50s. Northeast winds 5 to 10 mph. Gusts up to 25 mph in the evening. Chance of rain 70 percent.

Oral, SD

Late Afternoon
Cloudy
80°/ 58° 27°/ 14°
50%
Saturday
Thunderstorms
70°/ 55° 21°/ 13°
70%
Sunday
Thunderstorms
65°/ 50° 18°/ 10°
90%
Monday
Rain Showers
65°/ 50° 18°/ 10°
30%
Tuesday
Cloudy
75°/ 55° 24°/ 13°
30%
Wednesday
Cloudy
80°/ 55° 27°/ 13°
20%
Thursday
Cloudy
80°/ 55° 27°/ 13°
0%
Friday
Cloudy
82°28°
0%

Day: Partly cloudy. Highs around 80. East winds 5 to 10 mph with gusts up to 25 mph.

Night: Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the upper 50s. Northeast winds 5 to 10 mph. Gusts up to 25 mph in the evening. Chance of rain 50 percent.

Newcastle, WY

Late Afternoon
Sunny
82°/ 55° 28°/ 13°
70%
Saturday
Thunderstorms
70°/ 52° 21°/ 11°
70%
Sunday
Thunderstorms
62°/ 48° 17°/
90%
Monday
Rain Showers
65°/ 48° 18°/
50%
Tuesday
Cloudy
72°/ 52° 22°/ 11°
30%
Wednesday
Thunderstorms
75°/ 52° 24°/ 11°
20%
Thursday
Cloudy
78°/ 52° 26°/ 11°
0%
Friday
Cloudy
78°26°
0%

Day: Mostly sunny. Near steady temperature in the lower 80s. North winds around 5 mph with gusts up to 20 mph.

Night: Mostly cloudy with showers likely with a chance of thunderstorms. Lows in the mid 50s. Southeast winds 5 to 10 mph. Gusts up to 20 mph in the evening. Chance of rain 70 percent.

Colony, WY

Late Afternoon
Sunny
75°/ 55° 24°/ 13°
70%
Saturday
Thunderstorms
65°/ 52° 18°/ 11°
70%
Sunday
Thunderstorms
60°/ 48° 16°/
80%
Monday
Rain Showers
65°/ 48° 18°/
50%
Tuesday
Cloudy
75°/ 52° 24°/ 11°
0%
Wednesday
Thunderstorms
78°/ 52° 26°/ 11°
20%
Thursday
Sunny
80°/ 52° 27°/ 11°
0%
Friday
Cloudy
80°27°
0%

Day: Mostly sunny. Near steady temperature in the mid 70s. East winds 5 to 10 mph.

Night: Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms after midnight. Patchy fog after midnight. Lows in the mid 50s. Southeast winds 5 to 10 mph. Chance of rain 70 percent.

Pine Ridge, SD

Late Afternoon
Cloudy
78°/ 55° 26°/ 13°
50%
Saturday
Thunderstorms
68°/ 52° 20°/ 11°
70%
Sunday
Thunderstorms
65°/ 48° 18°/
90%
Monday
Rain Showers
65°/ 48° 18°/
40%
Tuesday
Rain Showers
72°/ 55° 22°/ 13°
20%
Wednesday
Rain Showers
78°/ 55° 26°/ 13°
20%
Thursday
Cloudy
78°/ 55° 26°/ 13°
0%
Friday
Cloudy
80°27°
0%

Day: Partly cloudy. Near steady temperature in the upper 70s. Northeast winds 5 to 10 mph with gusts up to 20 mph.

Night: Mostly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Lows in the mid 50s. Northeast winds 5 to 10 mph. Gusts up to 20 mph in the evening. Chance of rain 50 percent.

Ardmore, SD

Late Afternoon
Cloudy
82°/ 58° 28°/ 14°
70%
Saturday
Thunderstorms
72°/ 52° 22°/ 11°
70%
Sunday
Thunderstorms
62°/ 48° 17°/
90%
Monday
Rain Showers
65°/ 48° 18°/
20%
Tuesday
Cloudy
75°/ 55° 24°/ 13°
30%
Wednesday
Thunderstorms
78°/ 52° 26°/ 11°
20%
Thursday
Cloudy
80°/ 55° 27°/ 13°
0%
Friday
Cloudy
82°28°
0%

Day: Partly cloudy. Near steady temperature in the lower 80s. East winds 5 to 10 mph with gusts up to 25 mph.

Night: Mostly cloudy with a chance of thunderstorms. Showers likely in the evening, then a chance of showers after midnight. Lows in the upper 50s. East winds 5 to 10 mph. Gusts up to 25 mph in the evening. Chance of rain 70 percent.

Names listed above may include county names.

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