Hermosa, SD Weather Forecast & Current Conditions

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Hermosa Weather Map
UTC Time: 9/17/2026, 14:38
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Hermosa, SD Regional Weather

Expires:202609171500;;603949
ASUS43 KFSD 171410
RWRSD 

WEATHER ROUNDUP FOR SOUTH DAKOTA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
900 AM CDT THU SEP 17 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>074-171500-
SOUTHWEST AND SOUTH CENTRAL SOUTH DAKOTA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
RAPID CTY ARPT MOSUNNY   59  46  62 CALM      30.28R TC  15           
PIERRE         FOG       52  52 100 E3        30.27R VSB 1/4 TC  11   
CUSTER         PTSUNNY   57  48  72 E8        30.37R TC  14           
ELLSWORTH AFB  MOSUNNY   58  43  57 CALM      30.24R TC  15           
PHILIP         FOG       53  52  96 SE5       30.28R VSB<1/4 TC  12   
SPEARFISH      PTSUNNY   55  46  71 CALM      30.27S TC  13           
WINNER         FOG       55  55 100 NE7       30.28F VSB<1/4 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

Hermosa, SD

Today
Thunderstorms
75°/ 55° 24°/ 13°
70%
Friday
Mostly Cloudy
75°/ 55° 24°/ 13°
40%
Saturday
Thunderstorms
70°/ 52° 21°/ 11°
70%
Sunday
Thunderstorms
65°/ 48° 18°/
90%
Monday
Rain Showers
68°/ 48° 20°/
50%
Tuesday
Rain Showers
75°/ 52° 24°/ 11°
30%
Wednesday
Cloudy
80°27°
0%

Day: Mostly cloudy. Showers likely with a slight chance of thunderstorms this afternoon. Highs in the mid 70s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent.

Night: Showers with a slight chance of thunderstorms in the evening, then showers likely after midnight. Locally heavy rainfall possible in the evening. Lows in the mid 50s. North winds 10 to 15 mph with gusts up to 25 mph.

Hill City, SD

Today
Thunderstorms
68°/ 52° 20°/ 11°
90%
Friday
Mostly Cloudy
72°/ 52° 22°/ 11°
60%
Saturday
Thunderstorms
65°/ 48° 18°/
90%
Sunday
Thunderstorms
58°/ 45° 14°/
90%
Monday
Thunderstorms
65°/ 45° 18°/
60%
Tuesday
Rain Showers
70°/ 48° 21°/
30%
Wednesday
Cloudy
75°24°
0%

Day: Cloudy. Showers with a slight chance of thunderstorms this afternoon. Highs in the upper 60s. East winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 90 percent.

Night: Showers with a slight chance of thunderstorms in the evening, then showers likely after midnight. Lows in the lower 50s. Northeast winds 5 to 10 mph. Gusts up to 30 mph in the evening.

Box Elder, SD

Today
Thunderstorms
78°/ 55° 26°/ 13°
50%
Friday
Rain Showers
72°/ 52° 22°/ 11°
40%
Saturday
Rain Showers
68°/ 52° 20°/ 11°
90%
Sunday
Thunderstorms
65°/ 48° 18°/
90%
Monday
Rain Showers
68°/ 48° 20°/
40%
Tuesday
Cloudy
75°/ 52° 24°/ 11°
40%
Wednesday
Rain Showers
78°26°
20%

Day: Mostly cloudy. A chance of showers with a slight chance of thunderstorms this afternoon. Highs in the upper 70s. East winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 50 percent.

Night: Showers with a chance of thunderstorms in the evening, then showers after midnight. Breezy with lows in the mid 50s. East winds 15 to 25 mph, becoming northeast 10 to 15 mph after midnight. Gusts up to 35 mph.

Pringle, SD

Today
Thunderstorms
72°/ 55° 22°/ 13°
90%
Friday
Mostly Cloudy
75°/ 55° 24°/ 13°
60%
Saturday
Thunderstorms
68°/ 52° 20°/ 11°
70%
Sunday
Thunderstorms
62°/ 48° 17°/
90%
Monday
Rain Showers
68°/ 50° 20°/ 10°
50%
Tuesday
Rain Showers
72°/ 52° 22°/ 11°
30%
Wednesday
Cloudy
78°26°
0%

Day: Cloudy. A slight chance of showers this morning, then showers with a chance of thunderstorms this afternoon. Highs in the lower 70s. East winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 90 percent.

Night: Showers with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the mid 50s. Northeast winds 10 to 20 mph with gusts up to 30 mph, diminishing to 5 to 10 mph with gusts up to 20 mph after midnight.

Rapid City, SD

Today
Thunderstorms
75°/ 55° 24°/ 13°
70%
Friday
Mostly Cloudy
75°/ 55° 24°/ 13°
40%
Saturday
Thunderstorms
68°/ 52° 20°/ 11°
90%
Sunday
Thunderstorms
62°/ 48° 17°/
90%
Monday
Rain Showers
68°/ 48° 20°/
60%
Tuesday
Cloudy
75°/ 52° 24°/ 11°
30%
Wednesday
Cloudy
78°26°
0%

Day: Mostly cloudy. Showers likely with a slight chance of thunderstorms this afternoon. Highs in the mid 70s. Northeast winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 70 percent.

Night: Showers with a slight chance of thunderstorms in the evening, then showers after midnight. Lows in the mid 50s. Northeast winds 5 to 10 mph. Gusts up to 20 mph in the evening.

Folsom, SD

Today
Thunderstorms
78°/ 55° 26°/ 13°
70%
Friday
Mostly Cloudy
75°/ 52° 24°/ 11°
40%
Saturday
Thunderstorms
72°/ 50° 22°/ 10°
90%
Sunday
Thunderstorms
65°/ 48° 18°/
90%
Monday
Rain Showers
70°/ 48° 21°/
30%
Tuesday
Rain Showers
78°/ 52° 26°/ 11°
30%
Wednesday
Cloudy
82°28°
0%

Day: Mostly cloudy. Showers likely with a slight chance of thunderstorms this afternoon. Highs in the upper 70s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent.

Night: Showers with a slight chance of thunderstorms in the evening, then showers likely after midnight. Lows in the mid 50s. Northeast winds 10 to 15 mph. Gusts up to 30 mph, decreasing to 20 mph after midnight.

Kyle, SD

Today
Thunderstorms
78°/ 58° 26°/ 14°
50%
Friday
Mostly Cloudy
75°/ 52° 24°/ 11°
40%
Saturday
Rain Showers
72°/ 52° 22°/ 11°
90%
Sunday
Thunderstorms
65°/ 48° 18°/
90%
Monday
Rain Showers
70°/ 48° 21°/
30%
Tuesday
Rain Showers
78°/ 52° 26°/ 11°
40%
Wednesday
Rain Showers
80°27°
20%

Day: Mostly cloudy. A chance of showers and thunderstorms this afternoon. Highs in the upper 70s. East winds 10 to 20 mph with gusts up to 30 mph. Chance of rain 50 percent.

Night: Showers with a chance of thunderstorms in the evening, then showers likely after midnight. Locally heavy rainfall possible in the evening. Lows in the upper 50s. Northeast winds 10 to 20 mph. Gusts up to 35 mph, decreasing to 25 mph after midnight.

Sturgis, SD

Today
Rain Showers
75°/ 55° 24°/ 13°
70%
Friday
Cloudy
75°/ 55° 24°/ 13°
50%
Saturday
Thunderstorms
68°/ 52° 20°/ 11°
90%
Sunday
Thunderstorms
62°/ 48° 17°/
90%
Monday
Thunderstorms
68°/ 48° 20°/
60%
Tuesday
Cloudy
75°/ 52° 24°/ 11°
20%
Wednesday
Cloudy
78°26°
0%

Day: Cloudy. A slight chance of showers this morning, then showers likely this afternoon. Highs in the mid 70s. East winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 70 percent.

Night: Showers. Lows in the mid 50s. East winds 10 to 15 mph. Gusts up to 30 mph in the evening.

Lead, SD

Today
Thunderstorms
68°/ 48° 20°/
90%
Friday
Mostly Cloudy
72°/ 48° 22°/
70%
Saturday
Thunderstorms
65°/ 45° 18°/
90%
Sunday
Thunderstorms
58°/ 42° 14°/
80%
Monday
Thunderstorms
65°/ 42° 18°/
60%
Tuesday
Rain Showers
72°/ 45° 22°/
20%
Wednesday
Cloudy
75°24°
0%

Day: Cloudy. A slight chance of showers this morning, then showers with a slight chance of thunderstorms this afternoon. Highs in the upper 60s. Southeast winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 90 percent.

Night: Showers. Lows in the upper 40s. Southeast winds 5 to 10 mph. Gusts up to 25 mph in the evening.

Oral, SD

Today
Thunderstorms
75°/ 55° 24°/ 13°
70%
Friday
Mostly Cloudy
78°/ 55° 26°/ 13°
40%
Saturday
Thunderstorms
72°/ 52° 22°/ 11°
90%
Sunday
Thunderstorms
68°/ 48° 20°/
90%
Monday
Rain Showers
72°/ 48° 22°/
20%
Tuesday
Rain Showers
78°/ 52° 26°/ 11°
30%
Wednesday
Cloudy
82°28°
0%

Day: Mostly cloudy. Showers likely with a chance of thunderstorms this afternoon. Highs in the mid 70s. Northeast winds 10 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent.

Night: Showers with a chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the mid 50s. Northeast winds 10 to 15 mph. Gusts up to 30 mph, decreasing to 20 mph after midnight.

Hot Springs, SD

Today
Thunderstorms
75°/ 55° 24°/ 13°
70%
Friday
Cloudy
78°/ 55° 26°/ 13°
50%
Saturday
Thunderstorms
72°/ 52° 22°/ 11°
50%
Sunday
Thunderstorms
65°/ 48° 18°/
90%
Monday
Rain Showers
70°/ 50° 21°/ 10°
20%
Tuesday
Rain Showers
75°/ 52° 24°/ 11°
30%
Wednesday
Cloudy
80°27°
0%

Day: Mostly cloudy. Showers likely with a chance of thunderstorms this afternoon. Highs in the mid 70s. East winds 10 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent.

Night: Showers with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the mid 50s. Northeast winds 10 to 20 mph with gusts up to 35 mph, diminishing to 5 to 10 mph with gusts up to 20 mph after midnight.

Ellsworth AFB, SD

Today
Rain Showers
78°/ 55° 26°/ 13°
50%
Friday
Rain Showers
75°/ 52° 24°/ 11°
50%
Saturday
Rain Showers
68°/ 52° 20°/ 11°
90%
Sunday
Thunderstorms
65°/ 48° 18°/
90%
Monday
Rain Showers
68°/ 48° 20°/
40%
Tuesday
Cloudy
75°/ 52° 24°/ 11°
20%
Wednesday
Rain Showers
80°27°
20%

Day: Mostly cloudy. A chance of showers this afternoon. Highs in the upper 70s. East winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 50 percent.

Night: Showers with a slight chance of thunderstorms in the evening, then showers after midnight. Lows in the mid 50s. East winds 10 to 20 mph. Gusts up to 35 mph in the evening.

Pine Ridge, SD

Today
Thunderstorms
78°/ 58° 26°/ 14°
70%
Friday
Mostly Cloudy
75°/ 52° 24°/ 11°
30%
Saturday
Rain Showers
72°/ 52° 22°/ 11°
90%
Sunday
Thunderstorms
68°/ 48° 20°/
90%
Monday
Rain Showers
70°/ 48° 21°/
30%
Tuesday
Rain Showers
75°/ 52° 24°/ 11°
30%
Wednesday
Cloudy
78°26°
0%

Day: Mostly cloudy. Showers likely with a chance of thunderstorms this afternoon. Highs in the upper 70s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent.

Night: Showers with a chance of thunderstorms in the evening, then showers likely after midnight. Locally heavy rainfall possible in the evening. Lows in the upper 50s. Northeast winds 10 to 15 mph. Gusts up to 30 mph, decreasing to 20 mph after midnight.

Ardmore, SD

Today
Thunderstorms
75°/ 55° 24°/ 13°
90%
Friday
Cloudy
78°/ 55° 26°/ 13°
50%
Saturday
Thunderstorms
75°/ 52° 24°/ 11°
90%
Sunday
Thunderstorms
68°/ 48° 20°/
80%
Monday
Rain Showers
72°/ 48° 22°/
20%
Tuesday
Cloudy
78°/ 52° 26°/ 11°
30%
Wednesday
Cloudy
82°28°
0%

Day: Mostly cloudy. A slight chance of showers this morning, then showers with a chance of thunderstorms this afternoon. Highs in the mid 70s. East winds 10 to 20 mph with gusts up to 30 mph. Chance of rain 90 percent.

Night: Showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the mid 50s. Northeast winds 10 to 20 mph with gusts up to 35 mph, diminishing to 5 to 10 mph after midnight.

Spearfish, SD

Today
Rain Showers
75°/ 55° 24°/ 13°
90%
Friday
Mostly Cloudy
75°/ 55° 24°/ 13°
70%
Saturday
Thunderstorms
68°/ 52° 20°/ 11°
90%
Sunday
Thunderstorms
62°/ 48° 17°/
90%
Monday
Rain Showers
68°/ 48° 20°/
50%
Tuesday
Cloudy
75°/ 52° 24°/ 11°
0%
Wednesday
Cloudy
78°26°
0%

Day: Cloudy. Showers likely this afternoon. Highs in the mid 70s. East winds 5 to 10 mph, increasing to southeast 10 to 20 mph this afternoon. Gusts up to 30 mph. Chance of rain 70 percent.

Night: Cloudy. Showers in the evening, then a chance of showers after midnight. Lows in the mid 50s. East winds 10 to 20 mph, diminishing to 5 to 10 mph after midnight. Gusts up to 30 mph. Chance of rain 90 percent.

Sundance, WY

Today
Thunderstorms
72°/ 52° 22°/ 11°
90%
Friday
Cloudy
75°/ 52° 24°/ 11°
70%
Saturday
Thunderstorms
68°/ 48° 20°/
90%
Sunday
Thunderstorms
62°/ 45° 17°/
70%
Monday
Rain Showers
68°/ 48° 20°/
50%
Tuesday
Sunny
75°/ 50° 24°/ 10°
0%
Wednesday
Cloudy
78°26°
0%

Day: Cloudy. A slight chance of showers this morning, then showers with a slight chance of thunderstorms this afternoon. Highs in the lower 70s. Southeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 90 percent.

Night: Mostly cloudy. Showers with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the lower 50s. East winds 5 to 10 mph. Gusts up to 25 mph in the evening. Chance of rain 90 percent.

Newcastle, WY

Today
Thunderstorms
75°/ 52° 24°/ 11°
90%
Friday
Cloudy
78°/ 52° 26°/ 11°
60%
Saturday
Thunderstorms
72°/ 48° 22°/
90%
Sunday
Thunderstorms
65°/ 48° 18°/
80%
Monday
Rain Showers
68°/ 48° 20°/
20%
Tuesday
Cloudy
75°/ 50° 24°/ 10°
20%
Wednesday
Cloudy
78°26°
0%

Day: Cloudy. A slight chance of showers this morning, then showers with a chance of thunderstorms this afternoon. Highs in the mid 70s. Southeast winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 90 percent.

Night: Cloudy. Showers with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the lower 50s. Southeast winds 10 to 15 mph with gusts up to 30 mph, becoming southwest around 5 mph after midnight. Chance of rain 90 percent.

Belle Fourche, SD

Today
Rain Showers
75°/ 55° 24°/ 13°
90%
Friday
Cloudy
75°/ 52° 24°/ 11°
70%
Saturday
Thunderstorms
68°/ 50° 20°/ 10°
90%
Sunday
Thunderstorms
62°/ 48° 17°/
90%
Monday
Rain Showers
68°/ 48° 20°/
20%
Tuesday
Cloudy
75°/ 50° 24°/ 10°
20%
Wednesday
Cloudy
78°26°
0%

Day: Mostly cloudy. Patchy fog this morning. Showers likely this afternoon. Highs in the mid 70s. East winds 10 to 20 mph with gusts up to 35 mph. Chance of rain 70 percent.

Night: Cloudy with showers. Breezy with lows in the mid 50s. Southeast winds 20 to 30 mph, becoming east 10 to 20 mph after midnight. Chance of rain 90 percent.

Faith, SD

Today
Rain Showers
75°/ 55° 24°/ 13°
50%
Friday
Rain Showers
72°/ 52° 22°/ 11°
30%
Saturday
Rain Showers
68°/ 50° 20°/ 10°
70%
Sunday
Thunderstorms
62°/ 48° 17°/
90%
Monday
Rain Showers
68°/ 48° 20°/
40%
Tuesday
Mostly Cloudy
75°/ 50° 24°/ 10°
20%
Wednesday
Rain Showers
78°26°
20%

Day: Mostly cloudy. Patchy fog this morning. A chance of showers this afternoon. Highs in the mid 70s. East winds 10 to 20 mph with gusts up to 30 mph. Chance of rain 50 percent.

Night: Showers, breezy with lows in the mid 50s. East winds 15 to 25 mph with gusts up to 35 mph.

Kadoka, SD

Today
Thunderstorms
78°/ 58° 26°/ 14°
40%
Friday
Rain Showers
72°/ 52° 22°/ 11°
20%
Saturday
Rain Showers
68°/ 52° 20°/ 11°
70%
Sunday
Thunderstorms
65°/ 48° 18°/
90%
Monday
Rain Showers
68°/ 48° 20°/
40%
Tuesday
Cloudy
75°/ 52° 24°/ 11°
40%
Wednesday
Rain Showers
78°26°
20%

Day: Mostly cloudy. Patchy fog this morning. A chance of showers with a slight chance of thunderstorms this afternoon. Highs in the upper 70s. East winds 10 to 20 mph with gusts up to 30 mph. Chance of rain 40 percent.

Night: Showers with a chance of thunderstorms in the evening, then showers with a slight chance of thunderstorms after midnight. Locally heavy rainfall possible in the evening. Breezy with lows in the upper 50s. East winds 15 to 25 mph.

Names listed above may include county names.

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