Lyman County, SD Weather Forecast & Current Conditions

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Lyman County, SD Weather Maps

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Lyman County Weather Map
UTC Time: 10/3/2026, 16:42
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Lyman County, SD Regional Weather

Expires:202610031700;;469335
ASUS43 KFSD 031610
RWRSD 

WEATHER ROUNDUP FOR SOUTH DAKOTA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1100 AM CDT SAT OCT 03 2026

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



SDZ017-020-022-023-036>040-048>070-031700-
SOUTHEAST SOUTH DAKOTA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
SIOUX FALLS    PTSUNNY   62  44  51 S22G33    30.04F TC  17           
HURON          PTSUNNY   63  47  55 SW9       30.02R TC  17           
CHAMBERLAIN    SUNNY     65  53  63 NW12      30.05R TC  19           
MADISON        MOSUNNY   63  46  55 S15G25    30.01R TC  17           
MITCHELL       MOSUNNY   65  46  50 SW14G21   30.01R TC  18           
YANKTON        SUNNY     66  44  45 S17G24    30.05S TC  19           
$$
 
ABBREVIATIONS USED IN REMARKS
   TC - TEMPERATURE IN CELSIUS
  WCI - WIND CHILL INDEX
   HX - HEAT INDEX
  VSB - VISIBILITY

  

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

Lyman County, SD

Today
Sunny
72°/ 45° 22°/ 7°
0%
Sunday
Partly Cloudy
68°/ 50° 20°/ 10°
0%
Monday
Sunny
78°/ 55° 26°/ 13°
0%
Tuesday
Clear
55°13°
0%
Wed Night
Clear
55°13°
0%
Thursday
Partly Cloudy
75°/ 55° 24°/ 13°
0%

Day: Mostly sunny. Highs in the lower 70s. West winds 10 to 15 mph, becoming northwest 15 to 20 mph this afternoon. Gusts up to 35 mph.

Night: Mostly clear. Lows in the mid 40s. Northwest winds 15 to 20 mph with gusts up to 30 mph, diminishing to 5 to 10 mph after midnight.

Fort Thompson, SD

Today
Rain Showers
72°/ 45° 22°/ 7°
20%
Sunday
Partly Cloudy
68°/ 48° 20°/ 9°
0%
Monday
Sunny
75°/ 55° 24°/ 13°
0%
Tue Night
Clear
55°13°
0%
Wednesday
Sunny
75°/ 55° 24°/ 13°
0%
Thu Night-Fri
Clear
55°13°
0%

Day: Mostly sunny. Isolated showers late this morning. Highs in the lower 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph, becoming northwest 10 to 15 mph with gusts up to 30 mph this afternoon. Chance of rain 20 percent.

Night: Mostly clear. Lows in the mid 40s. Northwest winds 10 to 15 mph.

Chamberlain, SD

Today
Sunny
75°/ 45° 24°/ 7°
0%
Sunday
Sunny
68°/ 48° 20°/ 9°
0%
Monday
Sunny
75°/ 55° 24°/ 13°
0%
Tuesday
Sunny
78°/ 52° 26°/ 11°
0%
Wednesday
Sunny
75°/ 55° 24°/ 13°
0%
Thursday
Sunny
72°/ 55° 22°/ 13°
0%
Friday
Sunny
78°26°
0%

Day: Sunny, warmer with highs in the mid 70s. Southwest winds 10 to 15 mph, becoming northwest this afternoon.

Night: Mostly clear. Lows in the mid 40s. Northwest winds 5 to 10 mph. Gusts up to 25 mph in the evening.

Highmore, SD

Today
Rain Showers
72°/ 45° 22°/ 7°
50%
Sunday
Sunny
68°/ 48° 20°/ 9°
0%
Monday
Sunny
75°/ 55° 24°/ 13°
0%
Tue Night
Clear
55°13°
0%
Wednesday
Sunny
72°/ 52° 22°/ 11°
0%
Thu Night-Fri
Clear
52°11°
0%

Day: Partly sunny. Isolated showers late this morning, then scattered showers this afternoon. Highs in the lower 70s. West winds 5 to 10 mph, increasing to northwest 15 to 20 mph this afternoon. Gusts up to 35 mph. Chance of rain 50 percent.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 40s. Northwest winds 15 to 20 mph with gusts up to 30 mph, diminishing to 5 to 10 mph after midnight.

Pierre, SD

Today
Rain Showers
72°/ 45° 22°/ 7°
40%
Sunday
Sunny
68°/ 50° 20°/ 10°
0%
Monday
Sunny
75°/ 55° 24°/ 13°
0%
Tue Night
Clear
55°13°
0%
Wednesday
Sunny
75°/ 52° 24°/ 11°
0%
Thu Night-Fri
Clear
52°11°
0%

Day: Partly sunny. Isolated showers late this morning, then scattered showers this afternoon. Highs in the lower 70s. West winds 5 to 10 mph with gusts up to 25 mph, increasing to northwest 15 to 20 mph with gusts up to 35 mph this afternoon. Chance of rain 40 percent.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 40s. Northwest winds 15 to 20 mph with gusts up to 30 mph, diminishing to 5 to 10 mph after midnight.

Murdo, SD

Today
Sunny
72°/ 45° 22°/ 7°
0%
Sunday
Partly Cloudy
70°/ 52° 21°/ 11°
0%
Monday
Sunny
78°/ 55° 26°/ 13°
0%
Tue Night
Clear
55°13°
0%
Wed-Wed Night
Clear
75°24°
0%
Thursday
Partly Cloudy
75°/ 55° 24°/ 13°
0%

Day: Mostly sunny and breezy. Highs in the lower 70s. Northwest winds 10 to 15 mph with gusts up to 30 mph, increasing to 15 to 25 mph with gusts up to 40 mph this afternoon.

Night: Mostly clear in the evening, then becoming partly cloudy. Breezy with lows in the mid 40s. North winds 20 to 25 mph with gusts up to 35 mph, becoming northwest 5 to 10 mph after midnight.

Gregory, SD

Today
Sunny
75°/ 45° 24°/ 7°
0%
Sunday
Sunny
68°/ 48° 20°/ 9°
0%
Monday
Sunny
72°/ 58° 22°/ 14°
0%
Tuesday
Sunny
80°/ 55° 27°/ 13°
0%
Wednesday
Sunny
75°/ 55° 24°/ 13°
0%
Thursday
Sunny
72°/ 55° 22°/ 13°
0%
Friday
Sunny
78°26°
0%

Day: Sunny. Highs in the mid 70s. Southwest winds 15 to 20 mph, becoming northwest this afternoon.

Night: Mostly clear. Lows in the mid 40s. Northwest winds 10 to 15 mph. Gusts up to 30 mph in the evening.

Fort Pierre, SD

Today
Rain Showers
72°/ 45° 22°/ 7°
20%
Sunday
Sunny
70°/ 50° 21°/ 10°
0%
Monday
Sunny
78°/ 55° 26°/ 13°
0%
Tue Night
Clear
55°13°
0%
Wednesday
Sunny
75°/ 52° 24°/ 11°
0%
Thu Night-Fri
Clear
52°11°
0%

Day: Mostly sunny with isolated showers. Breezy with highs in the lower 70s. Northwest winds 10 to 15 mph with gusts up to 30 mph, increasing to 15 to 25 mph with gusts up to 40 mph this afternoon. Chance of rain 20 percent.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 40s. Northwest winds 15 to 20 mph with gusts up to 35 mph, diminishing to 5 to 10 mph after midnight.

Miller, SD

Today
Rain Showers
72°/ 45° 22°/ 7°
50%
Sunday
Sunny
68°/ 48° 20°/ 9°
0%
Monday
Sunny
72°/ 55° 22°/ 13°
0%
Tue Night
Clear
55°13°
0%
Wednesday
Sunny
72°/ 52° 22°/ 11°
0%
Thu Night-Fri
Clear
52°11°
0%

Day: Partly sunny. Scattered showers late this morning, then isolated showers this afternoon. Highs in the lower 70s. Southwest winds 5 to 10 mph, increasing to northwest 15 to 20 mph this afternoon. Chance of rain 50 percent.

Night: Mostly clear. Lows in the mid 40s. Northwest winds 15 to 20 mph with gusts up to 30 mph, diminishing to 5 to 10 mph after midnight.

Wagner, SD

Today
Sunny
78°/ 48° 26°/ 9°
0%
Sunday
Sunny
68°/ 48° 20°/ 9°
0%
Monday
Sunny
72°/ 58° 22°/ 14°
0%
Tuesday
Sunny
80°/ 55° 27°/ 13°
0%
Wednesday
Sunny
75°/ 55° 24°/ 13°
0%
Thursday
Sunny
72°/ 55° 22°/ 13°
0%
Friday
Sunny
78°26°
0%

Day: Sunny, warmer with highs in the upper 70s. South winds 15 to 20 mph, becoming northwest 10 to 15 mph this afternoon.

Night: Mostly clear. Lows in the upper 40s. Northwest winds 5 to 10 mph. Gusts up to 25 mph in the evening.

Onida, SD

Today
Rain Showers
72°/ 42° 22°/ 6°
50%
Sunday
Sunny
68°/ 48° 20°/ 9°
0%
Monday
Sunny
75°/ 52° 24°/ 11°
0%
Tuesday
Clear
52°11°
0%
Wednesday
Clear
52°/ 52° 11°/ 11°
0%
Thu Night-Fri
Clear
52°11°
0%

Day: Partly sunny with scattered showers. Breezy with highs in the lower 70s. Northwest winds 5 to 10 mph with gusts up to 25 mph, increasing to 20 to 25 mph with gusts up to 35 mph this afternoon. Chance of rain 50 percent.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 40s. Northwest winds 15 to 20 mph with gusts up to 35 mph, diminishing to 5 to 10 mph after midnight.

Plankinton, SD

Today
Sprinkles
75°/ 45° 24°/ 7°
0%
Sunday
Sunny
68°/ 48° 20°/ 9°
0%
Monday
Sunny
72°/ 55° 22°/ 13°
0%
Tuesday
Sunny
78°/ 55° 26°/ 13°
0%
Wednesday
Sunny
75°/ 55° 24°/ 13°
0%
Thursday
Sunny
72°/ 55° 22°/ 13°
0%
Friday
Sunny
78°26°
0%

Day: Sunny. A chance of sprinkles late this morning. Highs in the mid 70s. South winds 15 to 20 mph, becoming northwest 10 to 15 mph this afternoon.

Night: Mostly clear. Lows in the mid 40s. Northwest winds 5 to 10 mph. Gusts up to 25 mph in the evening.

Wessington Springs, SD

Today
Rain Showers
75°/ 45° 24°/ 7°
20%
Sunday
Sunny
68°/ 48° 20°/ 9°
0%
Monday
Sunny
72°/ 55° 22°/ 13°
0%
Tuesday
Sunny
78°/ 55° 26°/ 13°
0%
Wednesday
Sunny
72°/ 55° 22°/ 13°
0%
Thursday
Sunny
72°/ 52° 22°/ 11°
0%
Friday
Sunny
75°24°
0%

Day: Sunny. A chance of showers late this morning. Warmer with highs in the mid 70s. Southwest winds 10 to 15 mph, becoming northwest this afternoon. Chance of rain 20 percent.

Night: Mostly clear. Lows in the mid 40s. Northwest winds 5 to 10 mph. Gusts up to 25 mph in the evening.

Armour, SD

Today
Sunny
75°/ 45° 24°/ 7°
0%
Sunday
Sunny
68°/ 48° 20°/ 9°
0%
Monday
Sunny
72°/ 58° 22°/ 14°
0%
Tuesday
Sunny
78°/ 55° 26°/ 13°
0%
Wednesday
Sunny
75°/ 55° 24°/ 13°
0%
Thursday
Sunny
72°/ 55° 22°/ 13°
0%
Friday
Sunny
78°26°
0%

Day: Sunny, warmer with highs in the mid 70s. South winds 15 to 20 mph, becoming west 10 to 15 mph this afternoon.

Night: Mostly clear. Lows in the mid 40s. Northwest winds 5 to 10 mph. Gusts up to 25 mph in the evening.

Huron, SD

Today
Rain Showers
72°/ 45° 22°/ 7°
30%
Sunday
Sunny
68°/ 45° 20°/ 7°
0%
Monday
Sunny
72°/ 55° 22°/ 13°
0%
Tuesday
Sunny
78°/ 52° 26°/ 11°
0%
Wednesday
Sunny
72°/ 52° 22°/ 11°
0%
Thursday
Sunny
72°/ 52° 22°/ 11°
0%
Friday
Sunny
75°24°
0%

Day: Mostly sunny with a 30 percent chance of showers. Warmer with highs in the lower 70s. South winds 10 to 15 mph, becoming west 5 to 10 mph this afternoon.

Night: Mostly clear. Lows in the mid 40s. Northwest winds 5 to 10 mph. Gusts up to 25 mph in the evening.

Gettysburg, SD

Today
Rain Showers
70°/ 42° 21°/ 6°
50%
Sunday
Sunny
68°/ 48° 20°/ 9°
0%
Monday
Sunny
72°/ 52° 22°/ 11°
0%
Tue Night
Clear
52°11°
0%
Wednesday
Sunny
72°/ 50° 22°/ 10°
0%
Thu Night-Fri
Clear
52°11°
0%

Day: Partly sunny with scattered showers. Breezy with highs around 70. Northwest winds 10 to 15 mph, increasing to 20 to 25 mph this afternoon. Chance of rain 50 percent.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 40s. Northwest winds 15 to 20 mph with gusts up to 30 mph, diminishing to 5 to 10 mph after midnight.

Woonsocket, SD

Today
Sprinkles
75°/ 45° 24°/ 7°
0%
Sunday
Sunny
68°/ 45° 20°/ 7°
0%
Monday
Sunny
72°/ 55° 22°/ 13°
0%
Tuesday
Sunny
78°/ 52° 26°/ 11°
0%
Wednesday
Sunny
75°/ 55° 24°/ 13°
0%
Thursday
Sunny
72°/ 52° 22°/ 11°
0%
Friday
Sunny
75°24°
0%

Day: Sunny. A chance of sprinkles late this morning. Highs in the mid 70s. South winds 10 to 15 mph with gusts up to 30 mph, becoming west this afternoon.

Night: Mostly clear. Lows in the mid 40s. Northwest winds 5 to 10 mph.

Mitchell, SD

Today
Sprinkles
75°/ 45° 24°/ 7°
0%
Sunday
Sunny
68°/ 48° 20°/ 9°
0%
Monday
Sunny
72°/ 55° 22°/ 13°
0%
Tuesday
Sunny
80°/ 55° 27°/ 13°
0%
Wednesday
Sunny
75°/ 55° 24°/ 13°
0%
Thursday
Sunny
75°/ 55° 24°/ 13°
0%
Friday
Sunny
78°26°
0%

Day: Sunny. A chance of sprinkles late this morning. Warmer with highs in the mid 70s. South winds 15 to 20 mph, becoming west 10 to 15 mph this afternoon.

Night: Mostly clear. Lows in the mid 40s. Northwest winds 5 to 10 mph.

Faulkton, SD

Today
Rain Showers
70°/ 42° 21°/ 6°
50%
Sunday
Sunny
68°/ 45° 20°/ 7°
0%
Monday
Sunny
72°/ 52° 22°/ 11°
0%
Tue Night
Clear
52°11°
0%
Wednesday
Sunny
72°/ 52° 22°/ 11°
0%
Thu Night-Fri
Clear
50°10°
0%

Day: Partly sunny with scattered showers. Highs around 70. West winds 5 to 10 mph, increasing to northwest 15 to 20 mph this afternoon. Gusts up to 35 mph. Chance of rain 50 percent.

Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 40s. Northwest winds 15 to 20 mph with gusts up to 30 mph, diminishing to 5 to 10 mph after midnight.

Redfield, SD

Today
Rain Showers
70°/ 42° 21°/ 6°
50%
Sunday
Sunny
68°/ 45° 20°/ 7°
0%
Monday
Sunny
72°/ 52° 22°/ 11°
0%
Tue Night
Clear
52°11°
0%
Wednesday
Sunny
72°/ 52° 22°/ 11°
0%
Thu Night-Fri
Clear
52°11°
0%

Day: Partly sunny with scattered showers. Highs around 70. South winds 10 to 15 mph, becoming west this afternoon. Gusts up to 30 mph. Chance of rain 50 percent.

Night: Mostly clear. Lows in the lower 40s. Northwest winds 10 to 15 mph. Gusts up to 30 mph in the evening.

Names listed above may include county names.

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