Fall River County, SD Weather Forecast & Current Conditions

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Fall River County, SD Weather Maps

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Fall River County Weather Map
UTC Time: 9/17/2026, 05:41
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Fall River County, SD Regional Weather

Expires:202609170600;;582044
ASUS43 KFSD 170510
RWRSD 

WEATHER ROUNDUP FOR SOUTH DAKOTA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1200 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>074-170600-
SOUTHWEST AND SOUTH CENTRAL SOUTH DAKOTA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
RAPID CTY ARPT CLEAR     58  50  75 NW6       30.24R TC  14           
PIERRE         CLEAR     53  52  96 E5        30.19S TC  12           
CUSTER         PTCLDY    54  47  77 N6        30.35S TC  12           
PHILIP         CLEAR     55  53  93 E6        30.20S TC  13           
SPEARFISH      CLEAR     55  43  62 W7        30.29S TC  13           
WINNER         PTCLDY    54  54 100 E5        30.21S TC  12           
$$
 

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

Fall River County, SD

Tonight
Mostly Cloudy
55°13°
0%
Thursday
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%

Night: Mostly cloudy. Lows in the mid 50s. East winds 10 to 15 mph with gusts up to 25 mph.

Hot Springs, SD

Tonight
Mostly Cloudy
58°14°
0%
Thursday
Thunderstorms
75°/ 55° 24°/ 13°
90%
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°
30%
Tuesday
Rain Showers
75°/ 52° 24°/ 11°
30%
Wednesday
Cloudy
80°27°
0%

Night: Partly cloudy this evening, then becoming mostly cloudy. Lows in the upper 50s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Oral, SD

Tonight
Mostly Cloudy
55°13°
0%
Thursday
Thunderstorms
75°/ 55° 24°/ 13°
90%
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%

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds 10 to 15 mph with gusts up to 25 mph.

Hermosa, SD

Tonight
Mostly Cloudy
58°14°
0%
Thursday
Thunderstorms
75°/ 55° 24°/ 13°
80%
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%

Night: Partly cloudy this evening, then becoming mostly cloudy. Lows in the upper 50s. North winds 10 to 15 mph.

Pringle, SD

Tonight
Mostly Cloudy
58°14°
0%
Thursday
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
65°/ 50° 18°/ 10°
50%
Tuesday
Rain Showers
72°/ 52° 22°/ 11°
30%
Wednesday
Cloudy
75°24°
0%

Night: Partly cloudy this evening, then becoming mostly cloudy. Lows in the upper 50s. Northeast winds 10 to 15 mph.

Hill City, SD

Tonight
Mostly Cloudy
55°13°
0%
Thursday
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
62°/ 45° 17°/
60%
Tuesday
Rain Showers
68°/ 48° 20°/
30%
Wednesday
Cloudy
72°22°
0%

Night: Partly cloudy this evening, then becoming mostly cloudy. Lows in the mid 50s. North winds 5 to 10 mph. Gusts up to 20 mph this evening.

Chadron, NE

Afternoon
Sunny
82°/ 58° 28°/ 14°
0%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
70%
Friday
Sunny
80°/ 55° 27°/ 13°
50%
Saturday
Thunderstorms
75°/ 52° 24°/ 11°
90%
Sunday
Thunderstorms
70°/ 50° 21°/ 10°
70%
Monday
Sunny
72°/ 52° 22°/ 11°
0%
Tuesday
Sunny
78°26°
0%

Day: Mostly sunny. Highs in the lower 80s. South winds 15 to 20 mph.

Night: Mostly cloudy. Lows in the upper 50s. East winds around 5 mph.

Pine Ridge, SD

Tonight
Cloudy
55°13°
0%
Thursday
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%

Night: Partly cloudy. Lows in the mid 50s. East winds 5 to 10 mph.

Lusk, WY

Afternoon
Sunny
82°/ 55° 28°/ 13°
0%
Thursday
Thunderstorms
72°/ 52° 22°/ 11°
70%
Friday
Sunny
80°/ 52° 27°/ 11°
40%
Saturday
Thunderstorms
75°/ 48° 24°/
70%
Sun Night
Rain Showers
45°
50%
Monday
Sunny
72°/ 48° 22°/
0%

Day: Mostly sunny. Highs in the lower 80s. Northwest winds 5 to 10 mph with gusts up to 20 mph.

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds 5 to 10 mph with gusts up to 20 mph, becoming east after midnight.

Harrison, NE

Afternoon
Sunny
82°/ 55° 28°/ 13°
0%
Thursday
Thunderstorms
75°/ 55° 24°/ 13°
70%
Friday
Sunny
80°/ 52° 27°/ 11°
50%
Saturday
Thunderstorms
75°/ 50° 24°/ 10°
80%
Sunday
Thunderstorms
70°/ 48° 21°/
70%
Monday
Sunny
72°/ 48° 22°/
0%

Day: Mostly sunny. Warmer with highs in the lower 80s. South winds around 10 mph with gusts up to 20 mph.

Night: Mostly cloudy. Lows in the mid 50s. East winds 5 to 10 mph.

Kyle, SD

Tonight
Mostly Cloudy
55°13°
0%
Thursday
Thunderstorms
78°/ 58° 26°/ 14°
70%
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%

Night: Partly cloudy this evening, then becoming mostly cloudy. Lows in the mid 50s. Northeast winds 5 to 10 mph.

Gordon, NE

Tonight
Mostly Cloudy
55°13°
0%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
90%
Friday
Sunny
78°/ 52° 26°/ 11°
30%
Saturday
Thunderstorms
72°/ 52° 22°/ 11°
90%
Sunday
Thunderstorms
68°/ 48° 20°/
70%
Monday
Rain Showers
72°/ 50° 22°/ 10°
20%
Tuesday
Thunderstorms
75°/ 52° 24°/ 11°
20%
Wednesday
Sunny
78°26°
0%

Night: Mostly cloudy. Lows in the mid 50s. South winds up to 10 mph.

Folsom, SD

Tonight
Mostly Cloudy
55°13°
0%
Thursday
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%

Night: Partly cloudy this evening, then becoming mostly cloudy. Lows in the mid 50s. North winds 5 to 10 mph with gusts up to 20 mph.

Newcastle, WY

Tonight
Mostly Cloudy
55°13°
0%
Thursday
Thunderstorms
75°/ 52° 24°/ 11°
90%
Friday
Cloudy
78°/ 52° 26°/ 11°
60%
Saturday
Thunderstorms
72°/ 48° 22°/
90%
Sunday
Thunderstorms
65°/ 45° 18°/
80%
Monday
Rain Showers
70°/ 48° 21°/
20%
Tuesday
Cloudy
75°/ 50° 24°/ 10°
20%
Wednesday
Sunny
78°26°
0%

Night: Partly cloudy this evening, then becoming mostly cloudy. Lows in the mid 50s. North winds 5 to 10 mph. Gusts up to 20 mph this evening.

Lead, SD

Tonight
Cloudy
48°
0%
Thursday
Thunderstorms
68°/ 48° 20°/
70%
Friday
Mostly Cloudy
72°/ 48° 22°/
70%
Saturday
Thunderstorms
65°/ 45° 18°/
90%
Sunday
Thunderstorms
58°/ 42° 14°/
80%
Monday
Thunderstorms
62°/ 42° 17°/
60%
Tuesday
Sunny
70°/ 45° 21°/
20%
Wednesday
Cloudy
72°22°
0%

Night: Partly cloudy. Lows in the upper 40s. North winds around 5 mph, becoming east.

Rapid City, SD

Tonight
Mostly Cloudy
55°13°
0%
Thursday
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°/
50%
Tuesday
Rain Showers
75°/ 52° 24°/ 11°
30%
Wednesday
Cloudy
78°26°
0%

Night: Partly cloudy this evening, then becoming mostly cloudy. Lows in the mid 50s. Northwest winds 5 to 10 mph. Gusts up to 20 mph this evening.

Box Elder, SD

Tonight
Cloudy
52°11°
0%
Thursday
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
80°27°
20%

Night: Partly cloudy. Lows in the lower 50s. North winds 5 to 10 mph.

Sturgis, SD

Tonight
Cloudy
55°13°
0%
Thursday
Thunderstorms
75°/ 55° 24°/ 13°
50%
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°/
50%
Tuesday
Sunny
75°/ 52° 24°/ 11°
20%
Wednesday
Cloudy
78°26°
0%

Night: Partly cloudy. Lows in the mid 50s. Northwest winds 5 to 10 mph.

Sundance, WY

Tonight
Cloudy
52°11°
0%
Thursday
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
Sunny
78°26°
0%

Night: Partly cloudy. Lows in the lower 50s. Northeast winds 5 to 10 mph.

Alliance, NE

Afternoon
Sunny
80°/ 55° 27°/ 13°
0%
Thursday
Thunderstorms
75°/ 55° 24°/ 13°
70%
Friday
Sunny
80°/ 55° 27°/ 13°
50%
Saturday
Thunderstorms
75°/ 52° 24°/ 11°
90%
Sunday
Thunderstorms
70°/ 48° 21°/
70%
Monday
Sunny
72°/ 48° 22°/
0%

Day: Mostly sunny. Highs around 80. South winds 10 to 15 mph with gusts up to 30 mph.

Night: Mostly cloudy. Lows in the mid 50s. Southeast winds 5 to 10 mph.

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