Culvert Lake, SD Weather Forecast & Current Conditions

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Culvert Lake, SD Weather Maps

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Culvert Lake Weather Map
UTC Time: 9/22/2026, 04:35
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Culvert Lake, SD Regional Weather

Expires:202609220500;;850953
ASUS43 KFSD 220410
RWRSD 

WEATHER ROUNDUP FOR SOUTH DAKOTA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1100 PM CDT MON SEP 21 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>070-220500-
SOUTHEAST SOUTH DAKOTA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
SIOUX FALLS    DRIZZLE   53  53 100 NE7       30.24S FOG     TC  12   
HURON          CLOUDY    53  51  93 E6        30.26R TC  12           
CHAMBERLAIN    CLEAR     49  49  98 CALM      30.28R TC  10           
MADISON        CLOUDY    52  52 100 E7        30.25R TC  11           
MITCHELL       CLOUDY    54  52  93 NE6       30.25S TC  12           
YANKTON        CLOUDY    55  54  96 N5        30.23S TC  13           
$$
 
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

Culvert Lake, SD

Tonight
Rain Showers
50°10°
20%
Tuesday
Mostly Cloudy
58°/ 45° 14°/
0%
Wednesday
Partly Cloudy
62°/ 52° 17°/ 11°
90%
Thursday
Rain Showers
65°/ 52° 18°/ 11°
30%
Fri Night-Sat
Rain Showers
55°13°
50%
Sat Night
Rain Showers
55°13°
20%
Sunday
Partly Cloudy
68°/ 52° 20°/ 11°
20%
Monday
Thunderstorms
68°20°
50%

Night: Cloudy. A slight chance of showers after midnight. Patchy fog after midnight. Near steady temperature around 50. East winds 5 to 10 mph. Chance of rain 20 percent.

Granite Falls, MN

Tonight
Rain
48°
20%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
90%
Thursday
Rain Showers
65°/ 55° 18°/ 13°
50%
Friday
Rain Showers
65°/ 55° 18°/ 13°
50%
Saturday
Rain Showers
68°/ 55° 20°/ 13°
50%
Sunday
Sunny
68°/ 55° 20°/ 13°
0%
Monday
Rain Showers
68°20°
50%

Night: Cloudy. A 20 percent chance of rain late in the evening. Patchy fog through the night. Lows in the upper 40s. East winds up to 5 mph.

Tyler, MN

Tonight
Drizzle
48°
0%
Tuesday
Mostly Cloudy
58°/ 45° 14°/
0%
Wednesday
Partly Cloudy
62°/ 52° 17°/ 11°
90%
Thursday
Rain Showers
65°/ 52° 18°/ 11°
40%
Friday
Rain Showers
65°/ 55° 18°/ 13°
50%
Saturday
Rain Showers
65°/ 55° 18°/ 13°
50%
Sunday
Sunny
68°/ 55° 20°/ 13°
0%
Monday
Rain Showers
68°20°
50%

Night: Cloudy. A chance of drizzle, mainly this evening. Patchy fog. Near steady temperature in the upper 40s. East winds 5 to 10 mph.

Madison, MN

Tonight
Cloudy
48°
0%
Tuesday
Mostly Cloudy
62°/ 50° 17°/ 10°
0%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
90%
Thursday
Rain Showers
68°/ 52° 20°/ 11°
50%
Friday
Mostly Cloudy
68°/ 55° 20°/ 13°
50%
Saturday
Rain Showers
68°/ 55° 20°/ 13°
50%
Sunday
Sunny
68°/ 52° 20°/ 11°
0%
Monday
Rain Showers
68°20°
50%

Night: Cloudy. Patchy fog after midnight. Lows in the upper 40s. East winds up to 5 mph late in the evening becoming light.

Marshall, MN

Tonight
Rain Showers
52°11°
50%
Tuesday
Mostly Cloudy
60°/ 45° 16°/
0%
Wednesday
Sunny
65°/ 52° 18°/ 11°
90%
Thursday
Rain Showers
65°/ 55° 18°/ 13°
50%
Friday
Rain Showers
65°/ 55° 18°/ 13°
50%
Saturday
Rain Showers
65°/ 55° 18°/ 13°
50%
Sunday
Sunny
68°/ 55° 20°/ 13°
0%
Monday
Rain Showers
68°20°
40%

Night: Cloudy. A chance of showers with a slight chance of drizzle this evening. Patchy fog. Near steady temperature in the lower 50s. East winds 5 to 10 mph. Chance of rain 50 percent.

Brookings, SD

Tonight
Drizzle
50°10°
0%
Tuesday
Drizzle
58°/ 45° 14°/
0%
Wednesday
Mostly Cloudy
62°/ 52° 17°/ 11°
80%
Thursday
Rain Showers
65°/ 52° 18°/ 11°
40%
Friday
Rain Showers
65°/ 55° 18°/ 13°
60%
Saturday
Rain Showers
65°/ 55° 18°/ 13°
50%
Sunday
Sunny
68°/ 55° 20°/ 13°
0%
Monday
Rain Showers
68°20°
50%

Night: Cloudy with a chance of drizzle. Patchy fog. Near steady temperature around 50. East winds 5 to 10 mph.

Milbank, SD

Tonight
Mostly Cloudy
45°
0%
Tuesday
Mostly Cloudy
60°/ 48° 16°/
0%
Wednesday
Rain Showers
65°/ 52° 18°/ 11°
90%
Thursday
Rain Showers
68°20°
20%
Friday
Rain Showers
68°/ 55° 20°/ 13°
50%
Sat Night
Rain Showers
55°13°
20%
Sunday
Partly Cloudy
68°/ 52° 20°/ 11°
20%
Monday
Thunderstorms
68°20°
50%

Night: Mostly cloudy. Patchy fog after midnight. Lows in the mid 40s. East winds 5 to 10 mph.

Hayti, SD

Tonight
Rain Showers
50°10°
20%
Tuesday
Mostly Cloudy
60°/ 48° 16°/
0%
Wednesday
Rain Showers
62°/ 52° 17°/ 11°
80%
Thu-Thu Night
Rain Showers
65°18°
20%
Friday
Rain Showers
65°/ 55° 18°/ 13°
50%
Saturday
Rain Showers
68°/ 55° 20°/ 13°
50%
Sunday
Partly Cloudy
68°/ 52° 20°/ 11°
30%
Monday
Rain Showers
68°20°
50%

Night: Cloudy. A slight chance of showers after midnight. Patchy fog after midnight. Near steady temperature around 50. East winds 5 to 10 mph. Chance of rain 20 percent.

Watertown, SD

Tonight
Rain Showers
45°
20%
Tuesday
Mostly Cloudy
60°/ 45° 16°/
0%
Wednesday
Rain Showers
62°/ 52° 17°/ 11°
90%
Thursday
Mostly Cloudy
68°/ 55° 20°/ 13°
20%
Friday
Rain Showers
65°/ 55° 18°/ 13°
50%
Saturday
Rain Showers
68°/ 55° 20°/ 13°
50%
Sunday
Partly Cloudy
68°/ 52° 20°/ 11°
30%
Monday
Thunderstorms
68°20°
50%

Night: Mostly cloudy. A slight chance of showers after midnight. Patchy fog after midnight. Lows in the mid 40s. East winds 5 to 10 mph. Chance of rain 20 percent.

Montevideo, MN

Tonight
Rain
45°
20%
Tuesday
Partly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
90%
Thursday
Rain Showers
65°/ 52° 18°/ 11°
70%
Friday
Rain Showers
65°/ 55° 18°/ 13°
50%
Saturday
Rain Showers
65°/ 55° 18°/ 13°
50%
Sunday
Sunny
68°/ 52° 20°/ 11°
0%
Monday
Rain Showers
68°20°
50%

Night: Cloudy. A 20 percent chance of rain late in the evening. Lows in the mid 40s. East winds up to 5 mph.

Ortonville, MN

Tonight
Mostly Cloudy
45°
0%
Tuesday
Partly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
90%
Thursday
Rain Showers
68°/ 52° 20°/ 11°
30%
Friday
Rain Showers
65°/ 55° 18°/ 13°
50%
Sat Night
Rain Showers
55°13°
20%
Sunday
Partly Cloudy
68°/ 52° 20°/ 11°
20%
Monday
Thunderstorms
68°20°
50%

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

Flandreau, SD

Tonight
Drizzle
52°11°
0%
Tuesday
Drizzle
58°/ 45° 14°/
0%
Wednesday
Mostly Cloudy
62°/ 52° 17°/ 11°
80%
Thursday
Rain Showers
65°/ 52° 18°/ 11°
40%
Friday
Rain Showers
65°/ 55° 18°/ 13°
60%
Saturday
Rain Showers
65°/ 55° 18°/ 13°
40%
Sunday
Sunny
68°/ 55° 20°/ 13°
0%
Monday
Rain Showers
68°20°
50%

Night: Cloudy with a chance of drizzle. Patchy fog this evening. Areas of fog after midnight. Near steady temperature in the lower 50s. East winds 5 to 10 mph.

Benson, MN

Tonight
Mostly Cloudy
45°
0%
Tuesday
Partly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
62°/ 50° 17°/ 10°
90%
Thursday
Rain Showers
65°/ 52° 18°/ 11°
50%
Friday
Mostly Cloudy
65°/ 55° 18°/ 13°
50%
Saturday
Rain Showers
65°/ 55° 18°/ 13°
50%
Sunday
Sunny
68°/ 52° 20°/ 11°
0%
Monday
Rain Showers
68°20°
50%

Night: Mostly cloudy. Lows in the mid 40s. East winds up to 5 mph.

De Smet, SD

Tonight
Drizzle
48°
0%
Tuesday
Drizzle
58°/ 48° 14°/
0%
Wednesday
Rain Showers
62°/ 52° 17°/ 11°
70%
Thursday
Rain Showers
68°/ 52° 20°/ 11°
20%
Friday
Rain Showers
65°/ 55° 18°/ 13°
60%
Saturday
Cloudy
68°/ 55° 20°/ 13°
0%
Sunday
Sunny
68°/ 55° 20°/ 13°
0%
Monday
Rain Showers
68°20°
50%

Night: Cloudy with a slight chance of drizzle. Patchy fog after midnight. Lows in the upper 40s. East winds 5 to 10 mph.

Pipestone, MN

Tonight
Drizzle
50°10°
0%
Tuesday
Drizzle
58°/ 45° 14°/
0%
Wednesday
Mostly Cloudy
62°/ 50° 17°/ 10°
80%
Thursday
Rain Showers
62°/ 52° 17°/ 11°
50%
Friday
Rain Showers
65°/ 55° 18°/ 13°
60%
Saturday
Rain Showers
65°/ 55° 18°/ 13°
50%
Sunday
Partly Cloudy
68°/ 55° 20°/ 13°
0%
Monday
Rain Showers
68°20°
40%

Night: Cloudy. Drizzle likely, mainly this evening. Patchy fog this evening, then areas of fog after midnight. Near steady temperature around 50. East winds 5 to 10 mph.

Sisseton, SD

Tonight
Mostly Cloudy
45°
0%
Tuesday
Partly Cloudy
62°/ 45° 17°/
0%
Wednesday
Rain Showers
65°/ 52° 18°/ 11°
90%
Thursday
Rain Showers
68°/ 52° 20°/ 11°
20%
Friday
Rain Showers
68°/ 55° 20°/ 13°
50%
Sat Night
Rain Showers
52°11°
20%
Sunday
Partly Cloudy
68°/ 52° 20°/ 11°
20%
Monday
Thunderstorms
68°20°
60%

Night: Partly cloudy this evening, then becoming mostly cloudy. Lows in the mid 40s. Temperature rising to around 50 after midnight. Southeast winds 5 to 10 mph.

Madison, SD

Tonight
Rain Showers
50°10°
50%
Tuesday
Drizzle
58°/ 48° 14°/
0%
Wednesday
Rain Showers
62°/ 52° 17°/ 11°
80%
Thursday
Rain Showers
65°/ 52° 18°/ 11°
40%
Friday
Rain Showers
65°/ 55° 18°/ 13°
60%
Saturday
Rain Showers
68°/ 55° 20°/ 13°
40%
Sunday
Sunny
68°/ 55° 20°/ 13°
0%
Monday
Rain Showers
68°20°
50%

Night: A chance of showers this evening. Cloudy with a chance of drizzle. Patchy fog this evening. Areas of fog after midnight. Near steady temperature around 50. East winds 5 to 10 mph. Chance of rain 50 percent.

Redwood Falls, MN

Tonight
Rain
48°
20%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
70%
Thursday
Rain Showers
65°/ 52° 18°/ 11°
70%
Friday
Rain Showers
65°/ 55° 18°/ 13°
50%
Saturday
Rain Showers
65°/ 55° 18°/ 13°
50%
Sunday
Partly Cloudy
68°/ 55° 20°/ 13°
0%
Monday
Rain Showers
68°20°
40%

Night: Cloudy. A 20 percent chance of rain late in the evening. Patchy fog through the night. Lows in the upper 40s. East winds up to 5 mph.

Clark, SD

Tonight
Mostly Cloudy
45°
0%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Rain Showers
62°/ 52° 17°/ 11°
80%
Thursday
Mostly Cloudy
68°/ 55° 20°/ 13°
20%
Fri Night
Thunderstorms
55°13°
50%
Saturday
Rain Showers
68°/ 55° 20°/ 13°
20%
Sunday
Partly Cloudy
68°/ 55° 20°/ 13°
30%
Monday
Rain Showers
68°20°
50%

Night: Mostly cloudy. Patchy fog after midnight. Lows in the mid 40s. East winds 5 to 10 mph with gusts up to 20 mph.

Olivia, MN

Tonight
Rain
45°
20%
Tuesday
Mostly Cloudy
62°/ 45° 17°/
0%
Wednesday
Partly Cloudy
65°/ 50° 18°/ 10°
70%
Thursday
Rain Showers
62°/ 52° 17°/ 11°
70%
Friday
Rain Showers
65°/ 55° 18°/ 13°
50%
Saturday
Rain Showers
65°/ 55° 18°/ 13°
50%
Sunday
Partly Cloudy
68°/ 52° 20°/ 11°
0%
Monday
Rain Showers
68°20°
40%

Night: Cloudy. A 20 percent chance of rain late in the evening. Lows in the mid 40s. East winds up to 5 mph.

Names listed above may include county names.

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