Bismark Lake, SD Weather Forecast & Current Conditions

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Bismark Lake Weather Map
UTC Time: 10/14/2026, 22:46
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Bismark Lake, SD Regional Weather

Expires:202610142300;;104005
ASUS43 KFSD 142210
RWRSD 

WEATHER ROUNDUP FOR SOUTH DAKOTA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
500 PM CDT WED OCT 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>074-142300-
SOUTHWEST AND SOUTH CENTRAL SOUTH DAKOTA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
RAPID CTY ARPT PTSUNNY   56  40  55 SE7       30.09F TC  13           
PIERRE         PTSUNNY   53  39  59 NE7       30.13F TC  12           
CUSTER         CLOUDY    45  40  82 E3        30.11R TC   7           
PHILIP         MOSUNNY   60  41  49 E8        30.10F TC  16           
PINE RIDGE     CLOUDY    55  41  59 E7        30.09F TC  13           
SPEARFISH      MOSUNNY   50  45  81 NE5       30.10S TC  10           
WINNER         MOSUNNY   56  40  55 E9        30.12F 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

Bismark Lake, SD

Afternoon
Rain Showers
48°/ 38° 9°/ 3°
70%
Thursday
Mostly Cloudy
48°/ 25° 9°/ -4°
0%
Friday
Sunny
52°/ 38° 11°/ 3°
0%
Saturday
Sunny
72°/ 48° 22°/ 9°
0%
Sunday
Sunny
65°/ 42° 18°/ 6°
0%
Monday
Sunny
68°/ 48° 20°/ 9°
0%
Tuesday
Sunny
68°20°
0%

Day: Cloudy with a 50 percent chance of rain showers. Highs in the upper 40s. Southeast winds around 5 mph.

Night: Rain showers likely. Lows in the upper 30s. Northeast winds 5 to 10 mph. Gusts up to 30 mph after midnight. Chance of rain 70 percent.

Pringle, SD

Afternoon
Rain Showers
48°/ 42° 9°/ 6°
90%
Thursday
Mostly Cloudy
52°/ 25° 11°/ -4°
0%
Friday
Sunny
52°/ 38° 11°/ 3°
0%
Saturday
Sunny
72°/ 48° 22°/ 9°
0%
Sunday
Sunny
68°/ 45° 20°/ 7°
0%
Monday
Sunny
68°/ 48° 20°/ 9°
0%
Tuesday
Sunny
72°22°
0%

Day: Cloudy with a 50 percent chance of rain showers. Highs in the upper 40s. Southeast winds around 5 mph with gusts up to 20 mph.

Night: Showers. Lows in the lower 40s. Northeast winds 5 to 10 mph. Gusts up to 20 mph after midnight. Chance of rain 90 percent.

Hermosa, SD

Afternoon
Rain Showers
55°/ 42° 13°/ 6°
90%
Thursday
Rain Showers
55°/ 28° 13°/ -2°
20%
Friday
Sunny
55°/ 40° 13°/ 4°
0%
Saturday
Sunny
78°/ 48° 26°/ 9°
0%
Sunday
Sunny
72°/ 45° 22°/ 7°
0%
Monday
Sunny
72°/ 48° 22°/ 9°
0%
Tuesday
Sunny
75°24°
0%

Day: Mostly cloudy with a 40 percent chance of showers. Highs in the mid 50s. Southeast winds 5 to 10 mph.

Night: Showers. Lows in the lower 40s. Northeast winds 5 to 10 mph. Gusts up to 20 mph after midnight. Chance of rain 90 percent.

Lead, SD

Afternoon
Rain Showers
48°/ 35° 9°/ 2°
70%
Thursday
Mostly Cloudy
45°/ 22° 7°/ -6°
0%
Friday
Sunny
52°/ 38° 11°/ 3°
0%
Saturday
Sunny
72°/ 45° 22°/ 7°
0%
Sunday
Sunny
65°/ 38° 18°/ 3°
0%
Monday
Sunny
68°/ 45° 20°/ 7°
0%
Tuesday
Sunny
68°20°
0%

Day: Rain showers likely. Highs in the upper 40s. Southeast winds around 5 mph. Chance of rain 70 percent.

Night: Rain showers likely. Lows in the mid 30s. North winds 5 to 10 mph. Gusts up to 30 mph after midnight. Chance of rain 70 percent.

Rapid City, SD

Afternoon
Rain Showers
55°/ 42° 13°/ 6°
70%
Thursday
Mostly Cloudy
55°/ 30° 13°/ -1°
0%
Friday
Sunny
55°/ 42° 13°/ 6°
0%
Saturday
Sunny
78°/ 50° 26°/ 10°
0%
Sunday
Sunny
70°/ 45° 21°/ 7°
0%
Monday
Sunny
72°/ 50° 22°/ 10°
0%
Tuesday
Sunny
75°24°
0%

Day: Mostly cloudy with a 50 percent chance of showers. Highs in the mid 50s. Southeast winds 5 to 10 mph with gusts up to 20 mph.

Night: Cloudy with showers likely. Lows in the lower 40s. Southeast winds around 5 mph, becoming north with gusts up to 25 mph after midnight. Chance of rain 70 percent.

Hot Springs, SD

Afternoon
Rain Showers
52°/ 42° 11°/ 6°
90%
Thursday
Rain Showers
58°/ 28° 14°/ -2°
40%
Friday
Sunny
55°/ 35° 13°/ 2°
0%
Saturday
Sunny
75°/ 45° 24°/ 7°
0%
Sunday
Cloudy
72°/ 42° 22°/ 6°
0%
Monday
Sunny
72°/ 48° 22°/ 9°
0%
Tuesday
Sunny
75°24°
0%

Day: Cloudy with a 50 percent chance of showers. Highs in the lower 50s. East winds 5 to 10 mph with gusts up to 20 mph.

Night: Showers. Lows in the lower 40s. Northeast winds 5 to 10 mph. Chance of rain 90 percent.

Sturgis, SD

Afternoon
Rain Showers
55°/ 42° 13°/ 6°
50%
Thursday
Mostly Cloudy
52°/ 30° 11°/ -1°
0%
Friday
Sunny
55°/ 42° 13°/ 6°
0%
Saturday
Sunny
75°/ 52° 24°/ 11°
0%
Sunday
Sunny
70°/ 45° 21°/ 7°
0%
Monday
Sunny
72°/ 50° 22°/ 10°
0%
Tuesday
Sunny
75°24°
0%

Day: Mostly cloudy with a 50 percent chance of showers. Highs in the mid 50s. Southeast winds 5 to 10 mph with gusts up to 20 mph.

Night: Cloudy with a 50 percent chance of showers. Lows in the lower 40s. South winds 5 to 10 mph, becoming northwest with gusts up to 30 mph after midnight.

Oral, SD

Afternoon
Rain Showers
55°/ 42° 13°/ 6°
50%
Thursday
Rain Showers
58°/ 28° 14°/ -2°
70%
Friday
Sunny
55°/ 35° 13°/ 2°
0%
Saturday
Sunny
75°/ 45° 24°/ 7°
0%
Sunday
Cloudy
72°/ 40° 22°/ 4°
0%
Monday
Sunny
75°/ 45° 24°/ 7°
0%
Tuesday
Sunny
78°26°
0%

Day: Mostly cloudy with a 50 percent chance of showers. Highs in the mid 50s. East winds 5 to 10 mph with gusts up to 20 mph.

Night: Showers. Lows in the lower 40s. Northeast winds 5 to 10 mph.

Box Elder, SD

Afternoon
Rain Showers
58°/ 42° 14°/ 6°
70%
Thursday
Mostly Cloudy
55°/ 30° 13°/ -1°
0%
Friday
Sunny
55°/ 38° 13°/ 3°
0%
Saturday
Sunny
78°/ 45° 26°/ 7°
0%
Sunday
Cloudy
72°/ 38° 22°/ 3°
0%
Monday
Sunny
75°/ 48° 24°/ 9°
0%
Tuesday
Sunny
75°24°
0%

Day: Partly cloudy with a 20 percent chance of showers. Highs in the upper 50s. Southeast winds 5 to 10 mph with gusts up to 20 mph.

Night: Cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the lower 40s. East winds 5 to 10 mph, becoming north with gusts up to 20 mph after midnight. Chance of rain 70 percent.

Kyle, SD

Afternoon
Rain Showers
58°/ 40° 14°/ 4°
90%
Thursday
Rain Showers
58°/ 28° 14°/ -2°
50%
Friday
Sunny
55°/ 38° 13°/ 3°
0%
Saturday
Sunny
78°/ 45° 26°/ 7°
0%
Sunday
Cloudy
72°/ 38° 22°/ 3°
0%
Monday
Sunny
75°/ 48° 24°/ 9°
0%
Tuesday
Sunny
78°26°
0%

Day: Mostly cloudy with a 20 percent chance of showers. Highs in the upper 50s. East winds 5 to 10 mph with gusts up to 20 mph.

Night: Showers. Lows around 40. Northeast winds 5 to 10 mph. Chance of rain 90 percent.

Folsom, SD

Afternoon
Rain Showers
58°/ 42° 14°/ 6°
90%
Thursday
Rain Showers
58°/ 28° 14°/ -2°
20%
Friday
Sunny
55°/ 35° 13°/ 2°
0%
Saturday
Sunny
78°/ 45° 26°/ 7°
0%
Sunday
Sunny
72°/ 40° 22°/ 4°
0%
Monday
Sunny
75°/ 45° 24°/ 7°
0%
Tuesday
Sunny
78°26°
0%

Day: Mostly cloudy with a 40 percent chance of showers. Highs in the upper 50s. Southeast winds 5 to 10 mph.

Night: Showers. Lows in the lower 40s. Northeast winds 5 to 10 mph. Gusts up to 20 mph after midnight. Chance of rain 90 percent.

Newcastle, WY

Afternoon
Rain Showers
52°/ 38° 11°/ 3°
70%
Thursday
Mostly Cloudy
52°/ 25° 11°/ -4°
0%
Friday
Sunny
52°/ 32° 11°/ 0°
0%
Saturday
Sunny
72°/ 42° 22°/ 6°
0%
Sunday
Sunny
68°/ 38° 20°/ 3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Sunny
72°22°
0%

Day: Rain showers likely. Highs in the lower 50s. Southeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70 percent.

Night: Showers likely. Lows in the upper 30s. North winds around 5 mph, increasing to 10 to 15 mph with gusts up to 30 mph after midnight. Chance of rain 70 percent.

Ardmore, SD

Afternoon
Rain Showers
52°/ 42° 11°/ 6°
90%
Thursday
Rain Showers
55°/ 28° 13°/ -2°
70%
Friday
Sunny
55°/ 32° 13°/ 0°
0%
Saturday
Sunny
75°/ 45° 24°/ 7°
0%
Sunday
Cloudy
72°/ 42° 22°/ 6°
0%
Monday
Sunny
75°/ 45° 24°/ 7°
0%
Tuesday
Sunny
75°24°
0%

Day: Showers likely. Highs in the lower 50s. East winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 70 percent.

Night: Showers. Lows in the lower 40s. Northeast winds 5 to 10 mph. Gusts up to 20 mph in the evening. Chance of rain 90 percent.

Sundance, WY

Afternoon
Rain Showers
50°/ 35° 10°/ 2°
70%
Thursday
Cloudy
48°/ 25° 9°/ -4°
0%
Friday
Sunny
52°/ 42° 11°/ 6°
0%
Saturday
Sunny
72°/ 45° 22°/ 7°
0%
Sunday
Sunny
68°/ 42° 20°/ 6°
0%
Monday
Sunny
70°/ 48° 21°/ 9°
0%
Tuesday
Sunny
68°20°
0%

Day: Rain showers likely. Highs around 50. South winds around 5 mph. Chance of rain 70 percent.

Night: Cloudy. Rain showers likely in the evening, then a chance of rain showers after midnight. Lows in the mid 30s. Northwest winds 5 to 10 mph. Gusts up to 30 mph after midnight. Chance of rain 70 percent.

Rochelle, WY

Afternoon
Rain Showers
52°/ 38° 11°/ 3°
80%
Thursday
Cloudy
50°/ 22° 10°/ -6°
0%
Friday
Sunny
55°/ 32° 13°/ 0°
0%
Saturday
Sunny
75°/ 42° 24°/ 6°
0%
Sunday
Sunny
70°/ 38° 21°/ 3°
0%
Monday
Sunny
72°/ 42° 22°/ 6°
0%
Tuesday
Sunny
72°22°
0%

Day: Showers likely. Highs in the lower 50s. Southeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 70 percent.

Night: Rain showers. Lows in the upper 30s. Northeast winds around 5 mph, increasing to north 10 to 15 mph with gusts up to 35 mph after midnight. Chance of rain 80 percent.

Spearfish, SD

Afternoon
Rain Showers
55°/ 38° 13°/ 3°
70%
Thursday
Cloudy
50°/ 28° 10°/ -2°
0%
Friday
Sunny
55°/ 42° 13°/ 6°
0%
Saturday
Sunny
78°/ 50° 26°/ 10°
0%
Sunday
Sunny
68°/ 45° 20°/ 7°
0%
Monday
Sunny
72°/ 52° 22°/ 11°
0%
Tuesday
Sunny
72°22°
0%

Day: Mostly cloudy with a 50 percent chance of showers. Highs in the mid 50s. East winds 5 to 10 mph with gusts up to 20 mph.

Night: Cloudy. Rain showers likely in the evening, then a chance of rain showers after midnight. Lows in the upper 30s. West winds 5 to 10 mph. Gusts up to 25 mph after midnight. Chance of rain 70 percent.

Pine Ridge, SD

Afternoon
Rain Showers
58°/ 40° 14°/ 4°
40%
Thursday
Rain Showers
58°/ 28° 14°/ -2°
80%
Friday
Sunny
55°/ 35° 13°/ 2°
0%
Saturday
Sunny
75°/ 45° 24°/ 7°
0%
Sunday
Cloudy
72°/ 38° 22°/ 3°
0%
Monday
Sunny
75°/ 48° 24°/ 9°
0%
Tuesday
Sunny
75°24°
0%

Day: Mostly cloudy with a 40 percent chance of showers. Highs in the upper 50s. East winds 5 to 10 mph.

Night: Showers. Lows around 40. Northeast winds 5 to 10 mph.

Ellsworth AFB, SD

WIND ADVISORY IN EFFECT FROM 9 AM TO 11 PM MDT THURSDAY
Afternoon
Rain Showers
55°/ 42° 13°/ 6°
50%
Thursday
Mostly Cloudy
55°/ 30° 13°/ -1°
0%
Friday
Sunny
55°/ 35° 13°/ 2°
0%
Saturday
Sunny
75°/ 45° 24°/ 7°
0%
Sunday
Sunny
72°/ 42° 22°/ 6°
0%
Monday
Sunny
75°/ 48° 24°/ 9°
0%
Tuesday
Sunny
75°24°
0%

Day: Partly cloudy with a 20 percent chance of showers. Highs in the mid 50s. Southeast winds 5 to 10 mph with gusts up to 20 mph.

Night: Cloudy with a 50 percent chance of showers. Lows in the lower 40s. Southeast winds 5 to 10 mph, becoming northwest with gusts up to 25 mph after midnight.

Belle Fourche, SD

Afternoon
Rain Showers
55°/ 40° 13°/ 4°
50%
Thursday
Cloudy
52°/ 28° 11°/ -2°
0%
Friday
Sunny
55°/ 35° 13°/ 2°
0%
Saturday
Sunny
78°/ 45° 26°/ 7°
0%
Sunday
Sunny
70°/ 42° 21°/ 6°
0%
Monday
Sunny
72°/ 45° 22°/ 7°
0%
Tuesday
Sunny
72°22°
0%

Day: Mostly cloudy with a 20 percent chance of showers. Highs in the mid 50s. Southeast winds 5 to 10 mph with gusts up to 20 mph.

Night: Cloudy with a 50 percent chance of showers. Lows around 40. South winds 5 to 10 mph, becoming northwest 10 to 15 mph after midnight.

Colony, WY

Afternoon
Rain Showers
55°/ 38° 13°/ 3°
70%
Thursday
Cloudy
52°/ 25° 11°/ -4°
0%
Friday
Sunny
58°/ 42° 14°/ 6°
0%
Saturday
Sunny
78°/ 45° 26°/ 7°
0%
Sunday
Sunny
70°/ 40° 21°/ 4°
0%
Monday
Sunny
75°/ 45° 24°/ 7°
0%
Tuesday
Sunny
72°22°
0%

Day: Mostly cloudy with a 50 percent chance of showers. Highs in the mid 50s. Southeast winds around 5 mph.

Night: Cloudy. Rain showers likely in the evening, then a chance of rain showers after midnight. Lows in the upper 30s. West winds 10 to 15 mph. Chance of rain 70 percent.

Names listed above may include county names.

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