Lake Thompson, SD Weather Forecast & Current Conditions

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Lake Thompson, SD Weather Maps

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Lake Thompson Weather Map
UTC Time: 10/26/2026, 02:36
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Lake Thompson, SD Regional Weather

Expires:202610260300;;189845
ASUS43 KFSD 260210
RWRFSD

WEATHER ROUNDUP FOR SE SOUTH DAKOTA/SW MINNESOTA/NW IOWA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
900 PM CDT SUN OCT 25 2026

NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND OR OBSTRUCTIONS TO VISIBILITY.



SDZ038>040-050-052>070-260300-
SOUTHEAST SOUTH DAKOTA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
BROOKINGS      CLOUDY    41  34  76 NE10      30.45F TC   5           
CHAMBERLAIN    CLOUDY    39  38  95 NE6       30.50R TC   4           
HURON          CLOUDY    41  38  89 NE12      30.47R TC   5           
MADISON        CLOUDY    41  39  93 NE18      30.42F TC   5           
MITCHELL       LGT RAIN  42  37  82 NE7       30.46S TC   6           
SIOUX FALLS    CLOUDY    44  33  65 NE15G25   30.42F TC   7           
WINNER         CLOUDY    39  37  92 NE12      30.46R TC   4           
YANKTON        CLOUDY    48  38  68 NE9       30.39S TC   9           
$$


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

Lake Thompson, SD

Tonight
Rain Showers
40°4°
90%
Monday
Rain Showers
42°/ 38° 6°/ 3°
100%
Tuesday
Cloudy
55°/ 42° 13°/ 6°
0%
Wednesday
Rain Showers
62°/ 38° 17°/ 3°
20%
Thursday
Sunny
62°/ 42° 17°/ 6°
0%
Friday
Mostly Cloudy
65°/ 48° 18°/ 9°
60%
Saturday
Rain Showers
62°/ 42° 17°/ 6°
60%
Sunday
Mostly Cloudy
58°14°
0%

Night: Showers. Near steady temperature around 40. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 90 percent.

Howard, SD

Tonight
Rain Showers
42°6°
100%
Monday
Rain Showers
45°/ 42° 7°/ 6°
100%
Tuesday
Cloudy
55°/ 42° 13°/ 6°
0%
Wednesday
Rain Showers
62°/ 38° 17°/ 3°
20%
Thursday
Sunny
62°/ 45° 17°/ 7°
0%
Friday
Rain Showers
65°/ 48° 18°/ 9°
60%
Saturday
Rain Showers
62°/ 45° 17°/ 7°
60%
Sunday
Mostly Cloudy
60°16°
0%

Night: Showers. Near steady temperature in the lower 40s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.

Madison, SD

Tonight
Rain Showers
40°4°
100%
Monday
Rain Showers
45°/ 38° 7°/ 3°
100%
Tuesday
Cloudy
55°/ 42° 13°/ 6°
0%
Wednesday
Rain Showers
62°/ 40° 17°/ 4°
20%
Thursday
Sunny
62°/ 45° 17°/ 7°
0%
Friday
Rain Showers
65°/ 48° 18°/ 9°
60%
Saturday
Rain Showers
62°/ 45° 17°/ 7°
60%
Sunday
Mostly Cloudy
58°14°
0%

Night: Showers. Near steady temperature around 40. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.

Brookings, SD

Tonight
Rain Showers
40°4°
100%
Monday
Rain Showers
42°/ 38° 6°/ 3°
100%
Tuesday
Cloudy
55°/ 42° 13°/ 6°
0%
Wednesday
Rain Showers
62°/ 40° 17°/ 4°
40%
Thursday
Sunny
62°/ 42° 17°/ 6°
0%
Friday
Mostly Cloudy
62°/ 48° 17°/ 9°
50%
Saturday
Rain Showers
62°/ 45° 17°/ 7°
60%
Sunday
Mostly Cloudy
58°14°
0%

Night: Showers. Near steady temperature around 40. Northeast winds 10 to 15 mph. Chance of rain near 100 percent.

Hayti, SD

Tonight
Rain
35°2°
100%
Monday
Rain
38°/ 38° 3°/ 3°
100%
Tuesday
Cloudy
55°/ 42° 13°/ 6°
0%
Wed-Wed Night
Rain
62°17°
20%
Thursday
Partly Cloudy
62°/ 42° 17°/ 6°
0%
Friday
Rain
62°/ 45° 17°/ 7°
50%
Saturday
Rain
60°/ 42° 16°/ 6°
60%
Sunday
Mostly Cloudy
58°14°
0%

Night: Rain. Lows in the mid 30s. Northeast winds 10 to 15 mph. Chance of rain near 100 percent.

Clark, SD

Tonight
Rain
35°2°
100%
Monday
Rain
38°/ 38° 3°/ 3°
100%
Tuesday
Cloudy
52°/ 40° 11°/ 4°
0%
Wednesday
Rain
58°/ 38° 14°/ 3°
20%
Thu Night
Mostly Cloudy
42°6°
0%
Friday
Rain
62°/ 45° 17°/ 7°
50%
Saturday
Rain
58°/ 42° 14°/ 6°
60%
Sunday
Mostly Cloudy
58°14°
0%

Night: Rain. Lows in the mid 30s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.

Huron, SD

Tonight
Rain Showers
40°4°
100%
Monday
Rain Showers
42°/ 42° 6°/ 6°
100%
Tuesday
Mostly Cloudy
55°/ 38° 13°/ 3°
0%
Wednesday
Sunny
62°/ 35° 17°/ 2°
0%
Thursday
Sunny
62°/ 42° 17°/ 6°
0%
Friday
Mostly Cloudy
65°/ 45° 18°/ 7°
50%
Saturday
Rain Showers
62°/ 42° 17°/ 6°
50%
Sunday
Mostly Cloudy
58°14°
0%

Night: Showers. Near steady temperature around 40. Northeast winds 5 to 10 mph. Chance of rain near 100 percent.

Woonsocket, SD

Tonight
Rain Showers
42°6°
100%
Monday
Rain Showers
45°/ 42° 7°/ 6°
100%
Tuesday
Mostly Cloudy
55°/ 38° 13°/ 3°
0%
Wednesday
Sunny
62°/ 38° 17°/ 3°
0%
Thursday
Sunny
62°/ 42° 17°/ 6°
0%
Friday
Mostly Cloudy
65°/ 45° 18°/ 7°
50%
Saturday
Rain Showers
62°/ 42° 17°/ 6°
50%
Sunday
Mostly Cloudy
60°16°
0%

Night: Showers. Near steady temperature in the lower 40s. Northeast winds 10 to 15 mph. Chance of rain near 100 percent.

Salem, SD

Tonight
Rain Showers
42°6°
100%
Monday
Rain Showers
48°/ 40° 9°/ 4°
100%
Tuesday
Cloudy
58°/ 42° 14°/ 6°
0%
Wednesday
Rain Showers
65°/ 42° 18°/ 6°
20%
Thursday
Sunny
65°/ 45° 18°/ 7°
0%
Friday
Rain Showers
68°/ 48° 20°/ 9°
60%
Saturday
Rain Showers
62°/ 45° 17°/ 7°
60%
Sunday
Mostly Cloudy
60°16°
0%

Night: Showers. Near steady temperature in the lower 40s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.

Watertown, SD

Tonight
Rain
35°2°
100%
Monday
Rain
38°/ 38° 3°/ 3°
100%
Tuesday
Cloudy
52°/ 42° 11°/ 6°
0%
Wednesday
Rain
60°/ 40° 16°/ 4°
20%
Thu Night
Cloudy
40°4°
0%
Friday
Rain
60°/ 45° 16°/ 7°
50%
Saturday
Rain
58°/ 42° 14°/ 6°
60%
Sunday
Mostly Cloudy
58°14°
0%

Night: Rain. Lows in the mid 30s. Northeast winds 5 to 10 mph. Chance of rain near 100 percent.

Clear Lake, SD

Tonight
Rain
35°2°
90%
Monday
Rain
38°/ 35° 3°/ 2°
100%
Tuesday
Cloudy
55°/ 45° 13°/ 7°
0%
Wed-Wed Night
Rain
62°17°
20%
Thu-Thu Night
Cloudy
60°16°
0%
Friday
Rain
62°/ 45° 17°/ 7°
60%
Saturday
Rain
58°/ 45° 14°/ 7°
60%
Sunday
Mostly Cloudy
58°14°
0%

Night: Rain. Lows in the mid 30s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 90 percent.

Flandreau, SD

Tonight
Rain Showers
42°6°
100%
Monday
Rain Showers
45°/ 40° 7°/ 4°
100%
Tuesday
Cloudy
58°/ 45° 14°/ 7°
0%
Wednesday
Rain Showers
65°/ 42° 18°/ 6°
40%
Thursday
Sunny
62°/ 45° 17°/ 7°
0%
Friday
Rain Showers
65°/ 48° 18°/ 9°
60%
Saturday
Rain Showers
62°/ 45° 17°/ 7°
60%
Sunday
Mostly Cloudy
58°14°
0%

Night: Showers. Near steady temperature in the lower 40s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.

Alexandria, SD

Tonight
Rain Showers
42°6°
100%
Monday
Rain Showers
45°/ 38° 7°/ 3°
100%
Tuesday
Cloudy
58°/ 42° 14°/ 6°
0%
Wednesday
Rain Showers
65°/ 38° 18°/ 3°
20%
Thursday
Sunny
65°/ 45° 18°/ 7°
0%
Friday
Rain Showers
68°/ 48° 20°/ 9°
60%
Saturday
Rain Showers
62°/ 45° 17°/ 7°
50%
Sunday
Mostly Cloudy
62°17°
0%

Night: Showers. Near steady temperature in the lower 40s. Northeast winds 10 to 15 mph. Chance of rain near 100 percent.

Sioux Falls, SD

Tonight
Rain Showers
42°6°
100%
Monday
Rain Showers
48°/ 42° 9°/ 6°
100%
Tuesday
Cloudy
58°/ 45° 14°/ 7°
0%
Wednesday
Rain Showers
65°/ 42° 18°/ 6°
20%
Thursday
Sunny
65°/ 48° 18°/ 9°
0%
Friday
Rain Showers
68°/ 50° 20°/ 10°
60%
Saturday
Rain Showers
62°/ 45° 17°/ 7°
60%
Sunday
Mostly Cloudy
62°17°
0%

Night: A chance of showers this evening, then showers after midnight. Near steady temperature in the lower 40s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.

Redfield, SD

Tonight
Rain
35°2°
100%
Monday
Rain
38°/ 38° 3°/ 3°
100%
Tuesday
Cloudy
52°/ 35° 11°/ 2°
0%
Wednesday
Cloudy
60°16°
0%
Thursday
Cloudy
60°/ 40° 16°/ 4°
0%
Friday
Rain
62°/ 42° 17°/ 6°
50%
Sat Night
Rain
40°4°
20%
Sunday
Mostly Cloudy
58°14°
0%

Night: Rain. Lows in the mid 30s. Northeast winds 5 to 10 mph. Chance of rain near 100 percent.

Wessington Springs, SD

Tonight
Rain Showers
40°4°
100%
Monday
Rain Showers
42°/ 35° 6°/ 2°
100%
Tuesday
Mostly Cloudy
55°/ 38° 13°/ 3°
0%
Wednesday
Sunny
62°/ 38° 17°/ 3°
0%
Thursday
Sunny
62°/ 42° 17°/ 6°
0%
Friday
Mostly Cloudy
62°/ 45° 17°/ 7°
50%
Saturday
Rain Showers
60°/ 42° 16°/ 6°
50%
Sunday
Partly Cloudy
58°14°
0%

Night: Showers. Near steady temperature around 40. Northeast winds 10 to 15 mph. Chance of rain near 100 percent.

Mitchell, SD

Tonight
Rain Showers
42°6°
100%
Monday
Rain Showers
45°/ 38° 7°/ 3°
100%
Tuesday
Mostly Cloudy
58°/ 42° 14°/ 6°
0%
Wednesday
Sunny
62°/ 38° 17°/ 3°
0%
Thursday
Sunny
65°/ 42° 18°/ 6°
0%
Friday
Mostly Cloudy
65°/ 48° 18°/ 9°
50%
Saturday
Rain Showers
62°/ 42° 17°/ 6°
50%
Sunday
Mostly Cloudy
60°16°
0%

Night: Showers. Near steady temperature in the lower 40s. Northeast winds 10 to 15 mph. Chance of rain near 100 percent.

Tyler, MN

Tonight
Rain Showers
42°6°
100%
Monday
Rain Showers
40°/ 38° 4°/ 3°
100%
Tuesday
Mostly Cloudy
55°/ 45° 13°/ 7°
0%
Wednesday
Rain Showers
62°/ 42° 17°/ 6°
40%
Thursday
Sunny
62°/ 45° 17°/ 7°
0%
Friday
Mostly Cloudy
62°/ 48° 17°/ 9°
60%
Saturday
Rain Showers
62°/ 45° 17°/ 7°
60%
Sunday
Mostly Cloudy
58°14°
0%

Night: Showers. Near steady temperature in the lower 40s. Northeast winds 10 to 15 mph. Chance of rain near 100 percent.

Parker, SD

Tonight
Rain Showers
42°6°
100%
Monday
Rain Showers
48°/ 42° 9°/ 6°
100%
Tuesday
Mostly Cloudy
58°/ 45° 14°/ 7°
0%
Wednesday
Rain Showers
65°/ 42° 18°/ 6°
20%
Thursday
Sunny
65°/ 48° 18°/ 9°
0%
Friday
Rain Showers
68°/ 52° 20°/ 11°
60%
Saturday
Rain Showers
65°/ 48° 18°/ 9°
70%
Sunday
Mostly Cloudy
62°17°
0%

Night: A chance of showers this evening, then showers after midnight. Lows in the lower 40s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.

Parkston, SD

Tonight
Rain Showers
42°6°
100%
Monday
Rain Showers
48°/ 40° 9°/ 4°
100%
Tuesday
Mostly Cloudy
58°/ 45° 14°/ 7°
0%
Wednesday
Rain Showers
65°/ 42° 18°/ 6°
20%
Thursday
Sunny
65°/ 45° 18°/ 7°
0%
Friday
Rain Showers
68°/ 48° 20°/ 9°
60%
Saturday
Rain Showers
62°/ 45° 17°/ 7°
60%
Sunday
Mostly Cloudy
62°17°
0%

Night: Showers. Near steady temperature in the lower 40s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.

Names listed above may include county names.

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