Opal Lake, SD Weather Forecast & Current Conditions

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Opal Lake, SD Weather Maps

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Opal Lake Weather Map
UTC Time: 9/22/2026, 08:21
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Opal Lake, SD Regional Weather

Expires:202609220900;;861333
ASUS43 KFSD 220810
RWRSD 

WEATHER ROUNDUP FOR SOUTH DAKOTA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
300 AM CDT TUE SEP 22 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>074-220900-
SOUTHWEST AND SOUTH CENTRAL SOUTH DAKOTA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
RAPID CTY ARPT CLOUDY    54  53  97 SE9       30.19F TC  12           
PIERRE         MOCLDY    51  51 100 SE12      30.23S TC  11           
CUSTER         FOG       49  48  97 VRB5      30.23F VSB 3/4 TC   9   
ELLSWORTH AFB  CLOUDY    55  53  93 SE14      30.15F TC  13           
PHILIP         CLEAR     50  48  93 S6        30.21S TC  10           
SPEARFISH      CLEAR     46  46 100 CALM      30.15F TC   8           
WINNER         FOG       46  46 100 CALM      30.25S VSB 1/4 TC   8   
$$
 

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

Opal Lake, SD

Tonight
Mostly Cloudy
45°
0%
Tuesday
Mostly Cloudy
65°/ 52° 18°/ 11°
40%
Wednesday
Thunderstorms
78°/ 50° 26°/ 10°
50%
Thursday
Cloudy
78°/ 52° 26°/ 11°
0%
Friday
Thunderstorms
75°/ 52° 24°/ 11°
20%
Saturday
Cloudy
78°/ 50° 26°/ 10°
0%
Sunday
Cloudy
70°/ 52° 21°/ 11°
50%
Monday
Rain Showers
72°22°
30%

Night: Mostly cloudy. Patchy fog. Lows in the mid 40s. Southeast winds 10 to 15 mph with gusts up to 30 mph.

Usta, SD

Tonight
Mostly Cloudy
45°
0%
Tuesday
Cloudy
62°/ 52° 17°/ 11°
50%
Wednesday
Thunderstorms
78°/ 48° 26°/
70%
Thursday
Sunny
78°/ 52° 26°/ 11°
0%
Friday
Thunderstorms
75°/ 52° 24°/ 11°
20%
Saturday
Cloudy
75°/ 48° 24°/
0%
Sunday
Cloudy
68°/ 50° 20°/ 10°
50%
Monday
Rain Showers
70°21°
40%

Night: Mostly cloudy. Patchy fog. Lows in the mid 40s. Southeast winds 10 to 15 mph with gusts up to 25 mph.

Ellsworth AFB, SD

Tonight
Mostly Cloudy
48°
0%
Tuesday
Mostly Cloudy
68°/ 55° 20°/ 13°
30%
Wednesday
Thunderstorms
82°/ 52° 28°/ 11°
40%
Thursday
Cloudy
78°/ 52° 26°/ 11°
0%
Friday
Thunderstorms
75°/ 55° 24°/ 13°
20%
Saturday
Cloudy
78°/ 52° 26°/ 11°
0%
Sunday
Cloudy
72°/ 52° 22°/ 11°
50%
Monday
Rain Showers
72°22°
30%

Night: Mostly cloudy. Patchy fog. Lows in the upper 40s. Southeast winds 10 to 15 mph with gusts up to 30 mph.

Dupree, SD

Tonight
Mostly Cloudy
45°
0%
Tuesday
Mostly Cloudy
62°/ 52° 17°/ 11°
50%
Wednesday
Thunderstorms
75°/ 52° 24°/ 11°
70%
Thursday
Cloudy
75°/ 52° 24°/ 11°
0%
Friday
Thunderstorms
72°/ 55° 22°/ 13°
20%
Saturday
Cloudy
75°/ 50° 24°/ 10°
0%
Sunday
Cloudy
70°/ 52° 21°/ 11°
50%
Monday
Rain Showers
72°22°
40%

Night: Mostly cloudy. Patchy fog. Lows in the mid 40s. Southeast winds 10 to 15 mph.

Belle Fourche, SD

Tonight
Mostly Cloudy
45°
0%
Tuesday
Cloudy
68°/ 52° 20°/ 11°
40%
Wednesday
Rain Showers
78°/ 48° 26°/
20%
Thursday
Sunny
78°/ 52° 26°/ 11°
0%
Friday
Thunderstorms
75°/ 52° 24°/ 11°
20%
Saturday
Cloudy
78°/ 50° 26°/ 10°
0%
Sunday
Rain Showers
72°/ 52° 22°/ 11°
40%
Monday
Rain Showers
72°22°
20%

Night: Mostly cloudy. Patchy fog. Lows in the mid 40s. Southeast winds 10 to 20 mph with gusts up to 30 mph.

Lemmon, SD

Tonight
Mostly Cloudy
45°
0%
Tuesday
Mostly Cloudy
62°/ 50° 17°/ 10°
50%
Wednesday
Thunderstorms
75°/ 48° 24°/
70%
Thursday
Sunny
75°/ 52° 24°/ 11°
0%
Friday
Rain Showers
72°/ 52° 22°/ 11°
20%
Saturday
Cloudy
75°/ 48° 24°/
20%
Sunday
Cloudy
68°/ 48° 20°/
50%
Monday
Rain Showers
68°20°
40%

Night: Mostly cloudy. Lows in the mid 40s. Southeast winds 10 to 15 mph with gusts up to 25 mph.

Philip, SD

Tonight
Mostly Cloudy
45°
0%
Tuesday
Mostly Cloudy
65°/ 52° 18°/ 11°
30%
Wednesday
Thunderstorms
78°/ 52° 26°/ 11°
50%
Thursday
Cloudy
75°/ 52° 24°/ 11°
20%
Friday
Thunderstorms
72°/ 52° 22°/ 11°
20%
Saturday
Cloudy
78°/ 52° 26°/ 11°
0%
Sunday
Cloudy
72°/ 52° 22°/ 11°
50%
Monday
Rain Showers
72°22°
40%

Night: Mostly cloudy. Patchy fog. Lows in the mid 40s. Southeast winds 10 to 15 mph.

Box Elder, SD

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

Night: Mostly cloudy. Patchy fog. Lows in the upper 40s. Southeast winds 10 to 15 mph.

Isabel, SD

Tonight
Mostly Cloudy
45°
0%
Tuesday
Mostly Cloudy
62°/ 52° 17°/ 11°
20%
Wednesday
Thunderstorms
72°/ 52° 22°/ 11°
50%
Thursday
Partly Cloudy
75°/ 52° 24°/ 11°
20%
Fri-Fri Night
Rain Showers
68°20°
50%
Saturday
Cloudy
75°24°
0%
Sunday
Cloudy
75°/ 52° 24°/ 11°
50%
Monday
Rain Showers
72°22°
50%

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

McIntosh, SD

Tonight
Cloudy
45°
0%
Tuesday
Partly Cloudy
62°/ 52° 17°/ 11°
20%
Wednesday
Thunderstorms
70°/ 52° 21°/ 11°
70%
Thursday
Partly Cloudy
75°/ 52° 24°/ 11°
20%
Fri-Fri Night
Rain Showers
68°20°
50%
Saturday
Cloudy
72°22°
0%
Sunday
Cloudy
72°/ 52° 22°/ 11°
50%
Monday
Rain Showers
68°20°
50%

Night: Partly cloudy. Lows in the mid 40s. Southeast winds 5 to 10 mph with gusts up to 20 mph.

Buffalo, SD

Tonight
Mostly Cloudy
45°
0%
Tuesday
Mostly Cloudy
65°/ 52° 18°/ 11°
50%
Wednesday
Rain Showers
75°/ 48° 24°/
50%
Thursday
Sunny
78°/ 52° 26°/ 11°
0%
Friday
Thunderstorms
75°/ 52° 24°/ 11°
20%
Saturday
Cloudy
75°/ 48° 24°/
20%
Sunday
Cloudy
70°/ 48° 21°/
50%
Monday
Rain Showers
70°21°
30%

Night: Mostly cloudy. Patchy fog. Lows in the mid 40s. Southeast winds 10 to 20 mph with gusts up to 30 mph.

Sturgis, SD

Tonight
Mostly Cloudy
48°
0%
Tuesday
Cloudy
68°/ 55° 20°/ 13°
30%
Wednesday
Rain Showers
78°/ 52° 26°/ 11°
20%
Thursday
Cloudy
78°/ 55° 26°/ 13°
0%
Friday
Thunderstorms
75°/ 58° 24°/ 14°
20%
Saturday
Sunny
78°/ 52° 26°/ 11°
20%
Sunday
Rain Showers
72°/ 55° 22°/ 13°
40%
Monday
Rain Showers
72°22°
30%

Night: Mostly cloudy this evening, then becoming partly cloudy. Patchy fog. Lows in the upper 40s. Southeast winds 10 to 15 mph with gusts up to 30 mph.

Spearfish, SD

Tonight
Clear
45°
0%
Tuesday
Cloudy
72°/ 55° 22°/ 13°
30%
Wednesday
Rain Showers
75°/ 52° 24°/ 11°
20%
Thursday
Cloudy
78°/ 55° 26°/ 13°
0%
Friday
Thunderstorms
75°/ 55° 24°/ 13°
20%
Saturday
Cloudy
75°/ 52° 24°/ 11°
20%
Sunday
Rain Showers
72°/ 52° 22°/ 11°
40%
Monday
Rain Showers
72°22°
30%

Night: Mostly clear. Lows in the mid 40s. Southeast winds 10 to 15 mph with gusts up to 30 mph.

Rapid City, SD

Tonight
Mostly Cloudy
48°
0%
Tuesday
Mostly Cloudy
65°/ 55° 18°/ 13°
40%
Wednesday
Rain Showers
80°/ 52° 27°/ 11°
20%
Thursday
Cloudy
78°/ 52° 26°/ 11°
0%
Friday
Thunderstorms
75°/ 55° 24°/ 13°
20%
Saturday
Sunny
78°/ 52° 26°/ 11°
0%
Sunday
Rain Showers
72°/ 55° 22°/ 13°
40%
Monday
Rain Showers
72°22°
30%

Night: Mostly cloudy. Patchy fog. Lows in the upper 40s. Southeast winds 10 to 15 mph.

Kadoka, SD

Tonight
Mostly Cloudy
48°
0%
Tuesday
Rain Showers
65°/ 55° 18°/ 13°
20%
Wednesday
Rain Showers
78°/ 52° 26°/ 11°
20%
Thursday
Cloudy
75°/ 52° 24°/ 11°
20%
Friday
Thunderstorms
75°/ 55° 24°/ 13°
20%
Saturday
Cloudy
78°/ 52° 26°/ 11°
0%
Sunday
Cloudy
72°/ 52° 22°/ 11°
40%
Monday
Rain Showers
75°24°
40%

Night: Mostly cloudy. Patchy fog. Lows in the upper 40s. Southeast winds 10 to 15 mph.

Lead, SD

Tonight
Cloudy
42°
0%
Tuesday
Cloudy
65°/ 48° 18°/
40%
Wednesday
Rain Showers
70°/ 45° 21°/
20%
Thursday
Cloudy
72°/ 45° 22°/
0%
Friday
Thunderstorms
68°/ 48° 20°/
20%
Saturday
Sunny
72°/ 45° 22°/
20%
Sunday
Rain Showers
68°/ 45° 20°/
40%
Monday
Rain Showers
65°18°
40%

Night: Partly cloudy. Patchy fog. Lows in the lower 40s. South winds 5 to 10 mph with gusts up to 20 mph.

Hettinger, ND

Tonight
Mostly Cloudy
42°
0%
Tuesday
Cloudy
62°/ 48° 17°/
60%
Wednesday
Thunderstorms
72°/ 45° 22°/
70%
Thursday
Sunny
75°/ 48° 24°/
0%
Friday
Sunny
72°/ 50° 22°/ 10°
0%
Saturday
Sunny
72°/ 45° 22°/
20%
Sunday
Sunny
65°/ 45° 18°/
50%
Monday
Rain Showers
65°18°
30%

Night: Mostly cloudy. Lows in the lower 40s. Southeast winds 10 to 15 mph with gusts up to 25 mph.

Fort Pierre, SD

Tonight
Mostly Cloudy
45°
0%
Tuesday
Mostly Cloudy
62°/ 52° 17°/ 11°
50%
Wednesday
Rain Showers
75°/ 55° 24°/ 13°
40%
Thursday
Partly Cloudy
75°/ 52° 24°/ 11°
40%
Friday
Rain Showers
72°/ 55° 22°/ 13°
50%
Saturday
Partly Cloudy
78°/ 55° 26°/ 13°
0%
Sunday
Partly Cloudy
75°/ 55° 24°/ 13°
40%
Monday
Rain Showers
75°24°
50%

Night: Mostly cloudy. Lows in the mid 40s. Southeast winds 5 to 10 mph.

Hill City, SD

Tonight
Mostly Cloudy
45°
0%
Tuesday
Mostly Cloudy
62°/ 52° 17°/ 11°
50%
Wednesday
Rain Showers
72°/ 48° 22°/
20%
Thursday
Cloudy
72°/ 50° 22°/ 10°
20%
Friday
Thunderstorms
68°/ 52° 20°/ 11°
20%
Saturday
Sunny
75°/ 50° 24°/ 10°
0%
Sunday
Cloudy
68°/ 50° 20°/ 10°
40%
Monday
Rain Showers
68°20°
30%

Night: Mostly cloudy. Areas of fog. Lows in the mid 40s. Southeast winds 5 to 10 mph with gusts up to 20 mph.

Folsom, SD

Tonight
Mostly Cloudy
48°
0%
Tuesday
Mostly Cloudy
68°/ 55° 20°/ 13°
20%
Wednesday
Cloudy
82°/ 52° 28°/ 11°
0%
Thursday
Cloudy
78°/ 52° 26°/ 11°
0%
Friday
Thunderstorms
75°/ 55° 24°/ 13°
20%
Saturday
Sunny
82°/ 52° 28°/ 11°
0%
Sunday
Cloudy
75°/ 52° 24°/ 11°
40%
Monday
Rain Showers
75°24°
30%

Night: Mostly cloudy. Patchy fog. Lows in the upper 40s. Southeast winds 5 to 10 mph. Gusts up to 20 mph this evening.

Names listed above may include county names.

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