Sully Lake, SD Weather Forecast & Current Conditions

Feedback E-mail the Weather

Quick Clicks

Weather World

Sully Lake, SD Weather Maps

°F °C°F °C
Sully Lake Weather Map
UTC Time: 9/14/2026, 03:30
Your Time:

Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Sully Lake, SD Regional Weather

Expires:202609140400;;414693
ASUS43 KFSD 140310
RWRSD 

WEATHER ROUNDUP FOR SOUTH DAKOTA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1000 PM CDT SUN SEP 13 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>074-140400-
SOUTHWEST AND SOUTH CENTRAL SOUTH DAKOTA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
RAPID CTY ARPT PTCLDY    60  54  80 SE17      29.92F TC  16           
PIERRE         CLOUDY    63  49  60 SE17      30.02R TC  17           
CUSTER         MOCLDY    55  53  93 SE5       30.03R TC  13           
ELLSWORTH AFB  MOCLDY    63  54  72 SE18      29.88F TC  17           
PHILIP         LGT RAIN  61  52  72 SE15G28   29.99S TC  16           
SPEARFISH      PTCLDY    64  54  68 E12G18    29.84F TC  18           
WINNER         CLOUDY    60  53  77 SE18G29   30.04F TC  16           
$$
 

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

Sully Lake, SD

Tonight
Thunderstorms
55°13°
100%
Monday
Thunderstorms
75°/ 50° 24°/ 10°
100%
Tuesday
Sunny
68°/ 48° 20°/
20%
Wednesday
Rain Showers
70°/ 52° 21°/ 11°
50%
Thursday
Rain Showers
72°/ 55° 22°/ 13°
50%
Fri Night
Thunderstorms
52°11°
40%
Saturday
Rain Showers
72°22°
20%

Night: Showers with a slight chance of thunderstorms after midnight. Breezy with lows in the mid 50s. Southeast winds 15 to 25 mph with gusts up to 35 mph. Chance of rain near 100 percent.

Gettysburg, SD

Tonight
Thunderstorms
55°13°
100%
Monday
Thunderstorms
72°/ 48° 22°/
100%
Tuesday
Sunny
68°/ 48° 20°/
0%
Wednesday
Rain Showers
68°/ 50° 20°/ 10°
40%
Thursday
Rain Showers
70°/ 52° 21°/ 11°
50%
Fri Night
Rain Showers
52°11°
50%
Saturday
Rain Showers
70°21°
20%

Night: Partly cloudy this evening, then showers with a slight chance of thunderstorms after midnight. Breezy with lows in the mid 50s. Southeast winds 15 to 25 mph. Gusts up to 40 mph after midnight. Chance of rain near 100 percent.

Pierre, SD

Tonight
Thunderstorms
55°13°
100%
Monday
Thunderstorms
75°/ 52° 24°/ 11°
100%
Tuesday
Sunny
70°/ 52° 21°/ 11°
20%
Wednesday
Rain Showers
72°/ 52° 22°/ 11°
50%
Thursday
Rain Showers
72°/ 55° 22°/ 13°
50%
Friday
Rain Showers
75°/ 55° 24°/ 13°
50%
Saturday
Rain Showers
72°22°
20%

Night: Showers with a slight chance of thunderstorms after midnight. Breezy with lows in the mid 50s. Southeast winds 15 to 25 mph with gusts up to 35 mph. Chance of rain near 100 percent.

Fort Pierre, SD

Tonight
Thunderstorms
55°13°
100%
Monday
Thunderstorms
75°/ 50° 24°/ 10°
70%
Tuesday
Sunny
72°/ 52° 22°/ 11°
40%
Wednesday
Rain Showers
75°/ 52° 24°/ 11°
20%
Thursday
Rain Showers
75°/ 55° 24°/ 13°
50%
Friday
Rain Showers
75°/ 55° 24°/ 13°
50%
Saturday
Rain Showers
72°/ 52° 22°/ 11°
20%

Night: Showers with a chance of thunderstorms after midnight. Breezy with lows in the mid 50s. Southeast winds 20 to 25 mph with gusts up to 40 mph. Chance of rain near 100 percent.

Highmore, SD

Tonight
Thunderstorms
55°13°
90%
Monday
Thunderstorms
72°/ 48° 22°/
100%
Tuesday
Sunny
68°/ 48° 20°/
0%
Wednesday
Rain Showers
68°/ 52° 20°/ 11°
50%
Thursday
Rain Showers
72°/ 55° 22°/ 13°
50%
Friday
Rain Showers
72°/ 52° 22°/ 11°
50%
Saturday
Rain Showers
70°21°
20%

Night: Partly cloudy this evening, then cloudy with showers with a slight chance of thunderstorms after midnight. Breezy with lows in the mid 50s. Southeast winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 90 percent.

Isabel, SD

Tonight
Thunderstorms
55°13°
100%
Monday
Thunderstorms
75°/ 48° 24°/
70%
Tuesday
Sunny
70°/ 50° 21°/ 10°
20%
Wednesday
Rain Showers
72°/ 50° 22°/ 10°
40%
Thursday
Rain Showers
72°/ 55° 22°/ 13°
40%
Friday
Rain Showers
72°/ 52° 22°/ 11°
50%
Saturday
Rain Showers
72°22°
40%

Night: Partly cloudy this evening, then showers with a chance of thunderstorms after midnight. Windy with lows in the mid 50s. Southeast winds 20 to 30 mph with gusts up to 40 mph. Chance of rain near 100 percent.

Faulkton, SD

Tonight
Thunderstorms
52°11°
90%
Monday
Thunderstorms
72°/ 48° 22°/
100%
Tuesday
Sunny
68°/ 48° 20°/
0%
Wednesday
Rain Showers
68°/ 50° 20°/ 10°
40%
Thu Night-Fri
Rain Showers
55°13°
50%
Fri Night
Rain Showers
52°11°
40%
Saturday
Rain Showers
68°20°
20%

Night: Partly cloudy this evening, then mostly cloudy with showers with a slight chance of thunderstorms after midnight. Lows in the lower 50s. Southeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 90 percent.

Mobridge, SD

Tonight
Thunderstorms
55°13°
90%
Monday
Thunderstorms
72°/ 48° 22°/
100%
Tuesday
Sunny
68°/ 48° 20°/
0%
Wednesday
Rain Showers
68°/ 48° 20°/
40%
Thursday
Partly Cloudy
72°/ 52° 22°/ 11°
40%
Fri Night
Rain Showers
52°11°
40%
Saturday
Rain Showers
70°21°
20%

Night: Partly cloudy this evening, then mostly cloudy with showers with a slight chance of thunderstorms after midnight. Windy with lows in the mid 50s. Southeast winds 15 to 20 mph with gusts up to 30 mph, increasing to 20 to 30 mph with gusts up to 40 mph after midnight. Chance of rain 90 percent.

Kennebec, SD

Tonight
Thunderstorms
55°13°
70%
Monday
Thunderstorms
78°/ 52° 26°/ 11°
100%
Tuesday
Sunny
72°/ 52° 22°/ 11°
40%
Wednesday
Rain Showers
72°/ 55° 22°/ 13°
50%
Thursday
Rain Showers
75°/ 58° 24°/ 14°
60%
Friday
Rain Showers
75°/ 55° 24°/ 13°
50%
Saturday
Rain Showers
72°/ 52° 22°/ 11°
20%

Night: Mostly cloudy. Showers likely with a slight chance of thunderstorms after midnight. Breezy with lows in the mid 50s. Southeast winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 70 percent.

Murdo, SD

Tonight
Thunderstorms
55°13°
100%
Monday
Thunderstorms
78°/ 50° 26°/ 10°
70%
Tuesday
Sunny
72°/ 52° 22°/ 11°
40%
Wednesday
Rain Showers
75°/ 52° 24°/ 11°
50%
Thursday
Rain Showers
75°/ 55° 24°/ 13°
50%
Friday
Rain Showers
78°/ 55° 26°/ 13°
50%
Saturday
Rain Showers
75°/ 50° 24°/ 10°
20%

Night: Showers with a chance of thunderstorms after midnight. Windy with lows in the mid 50s. Southeast winds 20 to 30 mph with gusts up to 40 mph. Chance of rain near 100 percent.

Miller, SD

Tonight
Thunderstorms
55°13°
90%
Monday
Thunderstorms
72°/ 50° 22°/ 10°
100%
Tuesday
Sunny
70°/ 48° 21°/
0%
Wednesday
Rain Showers
68°/ 52° 20°/ 11°
50%
Thursday
Rain Showers
72°/ 55° 22°/ 13°
50%
Friday
Rain Showers
72°/ 55° 22°/ 13°
50%
Saturday
Rain Showers
70°21°
20%

Night: Partly cloudy this evening, then cloudy with showers with a slight chance of thunderstorms after midnight. Breezy with lows in the mid 50s. Southeast winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 90 percent.

Ipswich, SD

Tonight
Thunderstorms
52°11°
90%
Monday
Thunderstorms
72°/ 48° 22°/
100%
Tuesday
Sunny
68°/ 48° 20°/
0%
Wednesday
Rain Showers
65°/ 48° 18°/
40%
Thu Night
Rain Showers
52°11°
40%
Fri Night
Rain Showers
52°11°
40%
Saturday
Rain Showers
68°20°
20%

Night: Partly cloudy this evening, then mostly cloudy with showers with a slight chance of thunderstorms after midnight. Breezy with lows in the lower 50s. Southeast winds 10 to 15 mph with gusts up to 25 mph, increasing to 20 to 25 mph with gusts up to 35 mph after midnight. Chance of rain 90 percent.

McIntosh, SD

Tonight
Thunderstorms
55°13°
100%
Monday
Thunderstorms
75°/ 48° 24°/
90%
Tuesday
Sunny
68°/ 48° 20°/
0%
Wednesday
Rain Showers
72°/ 48° 22°/
30%
Thursday
Partly Cloudy
72°/ 52° 22°/ 11°
40%
Fri Night
Thunderstorms
52°11°
50%
Saturday
Rain Showers
72°22°
40%

Night: Showers with a slight chance of thunderstorms after midnight. Windy with lows in the mid 50s. Southeast winds 20 to 30 mph with gusts up to 40 mph. Chance of rain near 100 percent.

Fort Thompson, SD

Tonight
Thunderstorms
55°13°
90%
Monday
Thunderstorms
72°/ 52° 22°/ 11°
100%
Tuesday
Sunny
70°/ 52° 21°/ 11°
0%
Wednesday
Rain Showers
68°/ 55° 20°/ 13°
50%
Thursday
Rain Showers
72°/ 58° 22°/ 14°
60%
Friday
Rain Showers
72°/ 55° 22°/ 13°
50%
Saturday
Rain Showers
70°21°
20%

Night: Mostly cloudy. Showers with a slight chance of thunderstorms after midnight. Lows in the mid 50s. Southeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 90 percent.

Herreid, SD

Tonight
Thunderstorms
52°11°
90%
Monday
Thunderstorms
75°/ 48° 24°/
100%
Tuesday
Sunny
68°/ 45° 20°/
0%
Wednesday
Rain Showers
68°/ 48° 20°/
30%
Thu Night
Rain Showers
52°11°
40%
Fri Night
Rain Showers
52°11°
40%
Saturday
Rain Showers
72°22°
20%

Night: Partly cloudy this evening, then mostly cloudy with showers with a slight chance of thunderstorms after midnight. Windy with lows in the lower 50s. Southeast winds 15 to 20 mph with gusts up to 30 mph, increasing to 20 to 30 mph with gusts up to 40 mph after midnight. Chance of rain 90 percent.

Eureka, SD

Tonight
Thunderstorms
52°11°
90%
Monday
Thunderstorms
72°/ 48° 22°/
100%
Tuesday
Sunny
68°/ 45° 20°/
0%
Wednesday
Rain Showers
65°/ 48° 18°/
30%
Thursday
Partly Cloudy
70°/ 52° 21°/ 11°
40%
Fri Night
Rain Showers
52°11°
40%
Saturday
Rain Showers
68°20°
20%

Night: Partly cloudy this evening, then mostly cloudy with showers with a slight chance of thunderstorms after midnight. Breezy with lows in the lower 50s. Southeast winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 90 percent.

Huron, SD

Tonight
Thunderstorms
55°13°
90%
Monday
Thunderstorms
72°/ 50° 22°/ 10°
100%
Tuesday
Sunny
70°/ 50° 21°/ 10°
0%
Wednesday
Rain Showers
68°/ 52° 20°/ 11°
50%
Thursday
Mostly Cloudy
72°/ 55° 22°/ 13°
50%
Friday
Rain Showers
72°/ 55° 22°/ 13°
50%
Saturday
Mostly Cloudy
70°/ 52° 21°/ 11°
0%

Night: Partly cloudy this evening, then mostly cloudy with showers with a chance of thunderstorms after midnight. Lows in the mid 50s. Southeast winds around 10 mph with gusts up to 20 mph, increasing to 15 to 20 mph with gusts up to 35 mph after midnight. Chance of rain 90 percent.

Chamberlain, SD

Tonight
Thunderstorms
55°13°
70%
Monday
Thunderstorms
75°/ 52° 24°/ 11°
90%
Tuesday
Sunny
70°/ 52° 21°/ 11°
0%
Wednesday
Rain Showers
68°/ 55° 20°/ 13°
50%
Thursday
Mostly Cloudy
72°/ 58° 22°/ 14°
70%
Friday
Rain Showers
75°/ 55° 24°/ 13°
50%
Saturday
Mostly Cloudy
70°/ 52° 21°/ 11°
0%

Night: Mostly cloudy. A slight chance of sprinkles this evening, then showers likely with a chance of thunderstorms after midnight. Breezy with lows in the mid 50s. Southeast winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 70 percent.

Redfield, SD

Tonight
Thunderstorms
55°13°
50%
Monday
Thunderstorms
70°/ 48° 21°/
100%
Tuesday
Sunny
70°/ 48° 21°/
0%
Wednesday
Rain Showers
68°/ 52° 20°/ 11°
50%
Thu Night
Thunderstorms
55°13°
50%
Friday
Rain Showers
72°/ 55° 22°/ 13°
50%
Saturday
Rain Showers
70°/ 50° 21°/ 10°
20%

Night: Partly cloudy this evening, then mostly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows in the mid 50s. Southeast winds 15 to 20 mph. Gusts up to 35 mph after midnight. Chance of rain 50 percent.

Ashley, ND

Tonight
Thunderstorms
50°10°
N/A
Monday
Thunderstorms
72°/ 48° 22°/
N/A
Tuesday
Sunny
65°/ 45° 18°/
0%
Wednesday
Rain Showers
65°/ 45° 18°/
30%
Thursday
Sunny
68°/ 52° 20°/ 11°
40%
Friday
Rain Showers
68°/ 50° 20°/ 10°
40%
Saturday
Rain Showers
68°/ 48° 20°/
20%

Night: Mostly cloudy. Showers and a slight chance of thunderstorms after midnight. Windy. Lows around 50. Southeast winds 5 to 10 mph with gusts up to 20 mph, increasing to 20 to 30 mph with gusts up to 40 mph after midnight.

Trending Headlines

Trending Entertainment Headlines

Sully Lake Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Sully Lake Quick Facts

National Two Day Weather Forecast


E-mail the Sully Lake Weather Forecast

Voice your opinion or tell us about page issues...