Alcester, SD Weather Forecast & Current Conditions

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Alcester Weather Map
UTC Time: 9/19/2026, 00:58
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Alcester, SD Regional Weather

Expires:202609190100;;682258
ASUS43 KFSD 190010
RWRFSD

WEATHER ROUNDUP FOR SE SOUTH DAKOTA/SW MINNESOTA/NW IOWA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
700 PM CDT FRI SEP 18 2026

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



IAZ001>003-012>014-020>022-031-032-NEZ013-014-SDZ071-190100-
NORTHWEST IOWA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHEROKEE       MOCLDY    73  72  94 NE7       29.92S TC  23           
DENISON        PTCLDY    84  72  65 S9        29.90S TC  29           
ESTHERVILLE    CLOUDY    68  66  93 E8        29.98F TC  20           
LE MARS        MOCLDY   N/A N/A N/A NE10G17   29.89F                  
MAURICE        CLOUDY    72  70  94 E12       29.93F TC  22           
SHELDON        CLOUDY    70  70 100 NE7       29.93F TC  21           
SIOUX CITY     MOCLDY    82  74  76 N9        29.87R TC  28           
6HR MIN TEMP:  81; 6HR MAX TEMP:  96;                                

SPENCER        CLOUDY    68  66  93 E12       29.96F TC  20           
6HR MIN TEMP:  67; 6HR MAX TEMP:  70;                                

STORM LAKE     MOCLDY    73  70  88 E8G15     29.93S TC  23           
$$
 
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

Alcester, SD

Tonight
Thunderstorms
65°18°
50%
Saturday
Thunderstorms
72°/ 58° 22°/ 14°
20%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
70%
Monday
Thunderstorms
58°/ 48° 14°/
70%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
68°/ 52° 20°/ 11°
40%
Thursday
Rain Showers
68°/ 55° 20°/ 13°
40%
Friday
Mostly Cloudy
68°20°
0%

Night: Mostly cloudy with a chance of showers and thunderstorms. Patchy fog after midnight. Lows in the mid 60s. North winds 5 to 10 mph. Chance of rain 50 percent. Heat index values in the upper 90s early this evening.

Canton, SD

Tonight
Thunderstorms
62°17°
20%
Saturday
Rain Showers
68°/ 58° 20°/ 14°
20%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
70%
Monday
Rain Showers
60°/ 48° 16°/
70%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
68°/ 52° 20°/ 11°
40%
Thursday
Rain Showers
68°/ 55° 20°/ 13°
40%
Friday
Mostly Cloudy
70°21°
0%

Night: Mostly cloudy with a slight chance of showers and thunderstorms. Patchy fog after midnight. Lows in the lower 60s. North winds 5 to 10 mph. Chance of rain 20 percent.

Sioux Center, IA

Tonight
Thunderstorms
62°17°
50%
Saturday
Thunderstorms
70°/ 58° 21°/ 14°
20%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
70%
Monday
Rain Showers
58°/ 48° 14°/
70%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
40%
Thursday
Rain Showers
68°/ 52° 20°/ 11°
40%
Friday
Mostly Cloudy
68°20°
0%

Night: Mostly cloudy with a chance of showers and thunderstorms. Areas of fog after midnight. Lows in the lower 60s. Northeast winds 5 to 10 mph, becoming north after midnight. Chance of rain 50 percent.

Le Mars, IA

Tonight
Thunderstorms
65°18°
50%
Saturday
Thunderstorms
72°/ 58° 22°/ 14°
20%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
70%
Monday
Thunderstorms
55°/ 48° 13°/
70%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
40%
Thursday
Rain Showers
68°/ 55° 20°/ 13°
40%
Friday
Mostly Cloudy
68°20°
0%

Night: Mostly cloudy with a chance of showers and thunderstorms. Patchy fog after midnight. Lows in the mid 60s. Northeast winds 5 to 10 mph, becoming north after midnight. Chance of rain 50 percent.

Vermillion, SD

Tonight
Thunderstorms
62°17°
20%
Saturday
Rain Showers
70°/ 58° 21°/ 14°
20%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
80%
Monday
Thunderstorms
60°/ 48° 16°/
70%
Tuesday
Mostly Cloudy
65°/ 48° 18°/
0%
Wednesday
Mostly Cloudy
68°/ 52° 20°/ 11°
50%
Thursday
Rain Showers
68°/ 55° 20°/ 13°
50%
Friday
Mostly Cloudy
70°21°
0%

Night: Mostly cloudy with a slight chance of showers. A slight chance of thunderstorms after midnight. Lows in the lower 60s. North winds 5 to 10 mph. Chance of rain 20 percent.

Parker, SD

Tonight
Mostly Cloudy
62°17°
0%
Saturday
Rain Showers
68°/ 58° 20°/ 14°
20%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
70%
Monday
Rain Showers
62°/ 48° 17°/
70%
Tuesday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Wednesday
Mostly Cloudy
68°/ 55° 20°/ 13°
40%
Thursday
Rain Showers
68°/ 55° 20°/ 13°
40%
Friday
Mostly Cloudy
70°21°
0%

Night: Mostly cloudy. Patchy fog after midnight. Lows in the lower 60s. North winds 5 to 10 mph.

Rock Rapids, IA

Tonight
Thunderstorms
62°17°
50%
Saturday
Rain Showers
68°/ 55° 20°/ 13°
20%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
70%
Monday
Rain Showers
60°/ 48° 16°/
50%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
68°/ 52° 20°/ 11°
40%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Mostly Cloudy
68°20°
0%

Night: Mostly cloudy with a chance of showers. A chance of thunderstorms, mainly this evening. Areas of fog. Lows in the lower 60s. Northeast winds 5 to 10 mph. Chance of rain 50 percent.

Yankton, SD

Tonight
Rain Showers
62°17°
20%
Saturday
Rain Showers
70°/ 58° 21°/ 14°
20%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
90%
Monday
Thunderstorms
60°/ 50° 16°/ 10°
70%
Tuesday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Wednesday
Mostly Cloudy
68°/ 55° 20°/ 13°
50%
Thursday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Friday
Mostly Cloudy
70°21°
0%

Night: Mostly cloudy. A slight chance of showers after midnight. Patchy fog after midnight. Lows in the lower 60s. Northwest winds 5 to 10 mph. Chance of rain 20 percent.

Wakefield, NE

Tonight
Thunderstorms
65°18°
40%
Saturday
Thunderstorms
68°/ 58° 20°/ 14°
20%
Sunday
Rain Showers
62°/ 55° 17°/ 13°
70%
Monday
Thunderstorms
58°/ 48° 14°/
70%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
40%
Thursday
Rain Showers
65°/ 55° 18°/ 13°
40%
Friday
Mostly Cloudy
68°20°
0%

Night: Mostly cloudy with a chance of showers and thunderstorms. Lows in the mid 60s. Northwest winds 5 to 10 mph. Chance of rain 40 percent. Heat index values in the upper 90s early this evening.

Hartington, NE

Tonight
Thunderstorms
62°17°
20%
Saturday
Rain Showers
68°/ 58° 20°/ 14°
20%
Sunday
Rain Showers
62°/ 55° 17°/ 13°
90%
Monday
Thunderstorms
58°/ 50° 14°/ 10°
70%
Tuesday
Mostly Cloudy
62°/ 50° 17°/ 10°
0%
Wednesday
Rain Showers
68°/ 55° 20°/ 13°
50%
Thursday
Rain Showers
68°/ 55° 20°/ 13°
50%
Friday
Mostly Cloudy
68°20°
0%

Night: Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the lower 60s. Northwest winds 5 to 10 mph. Chance of rain 20 percent.

Sioux Falls, SD

Tonight
Rain Showers
62°17°
20%
Saturday
Cloudy
68°/ 55° 20°/ 13°
0%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
70%
Monday
Rain Showers
62°/ 48° 17°/
50%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Mostly Cloudy
68°/ 52° 20°/ 11°
40%
Thursday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Friday
Partly Cloudy
70°21°
0%

Night: Cloudy. Patchy fog. A slight chance of showers after midnight. Lows in the lower 60s. Northeast winds 5 to 10 mph. Chance of rain 20 percent.

Sioux City, IA

Tonight
Thunderstorms
65°18°
50%
Saturday
Thunderstorms
72°/ 58° 22°/ 14°
40%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
60%
Monday
Thunderstorms
55°/ 50° 13°/ 10°
70%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
30%
Thursday
Rain Showers
65°/ 55° 18°/ 13°
40%
Friday
Mostly Cloudy
68°20°
0%

Night: Mostly cloudy with a chance of thunderstorms. A chance of showers. Lows in the mid 60s. South winds 5 to 10 mph with gusts up to 20 mph, becoming northwest after midnight. Chance of rain 50 percent. Heat index values up to 100 early this evening.

Luverne, MN

Tonight
Thunderstorms
60°16°
20%
Saturday
Cloudy
65°/ 55° 18°/ 13°
0%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
50%
Monday
Rain Showers
60°/ 45° 16°/
50%
Tuesday
Mostly Cloudy
62°/ 45° 17°/
0%
Wednesday
Partly Cloudy
65°/ 50° 18°/ 10°
40%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Mostly Cloudy
68°20°
0%

Night: Cloudy with a slight chance of showers and thunderstorms. Patchy fog this evening. Areas of fog after midnight. Lows around 60. Northeast winds 5 to 10 mph. Chance of rain 20 percent.

South Sioux City, NE

Tonight
Thunderstorms
65°18°
50%
Saturday
Thunderstorms
68°/ 58° 20°/ 14°
20%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
70%
Monday
Thunderstorms
58°/ 48° 14°/
70%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
40%
Thursday
Rain Showers
65°/ 55° 18°/ 13°
40%
Friday
Mostly Cloudy
68°20°
0%

Night: Mostly cloudy with a chance of showers and thunderstorms. Lows in the mid 60s. Northwest winds 5 to 10 mph. Chance of rain 50 percent. Heat index values up to 103 early this evening.

Sheldon, IA

Tonight
Thunderstorms
62°17°
50%
Saturday
Thunderstorms
70°/ 55° 21°/ 13°
30%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
60%
Monday
Rain Showers
58°/ 48° 14°/
60%
Tuesday
Mostly Cloudy
62°/ 45° 17°/
0%
Wednesday
Sunny
65°/ 50° 18°/ 10°
30%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Mostly Cloudy
68°20°
0%

Night: Mostly cloudy with a chance of showers and thunderstorms. Patchy fog this evening. Areas of fog after midnight. Lows in the lower 60s. East winds 5 to 10 mph with gusts up to 20 mph, becoming north after midnight. Chance of rain 50 percent.

Cherokee, IA

Tonight
Thunderstorms
65°18°
50%
Saturday
Thunderstorms
72°/ 58° 22°/ 14°
30%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
60%
Monday
Rain Showers
58°/ 48° 14°/
60%
Tuesday
Mostly Cloudy
62°/ 45° 17°/
0%
Wednesday
Sunny
65°/ 50° 18°/ 10°
30%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Mostly Cloudy
68°20°
0%

Night: Mostly cloudy with a chance of thunderstorms. A chance of showers. Patchy fog after midnight. Lows in the mid 60s. Southeast winds 5 to 10 mph with gusts up to 20 mph, becoming northwest after midnight. Chance of rain 50 percent.

Worthington, MN

Tonight
Thunderstorms
60°16°
50%
Saturday
Cloudy
65°/ 55° 18°/ 13°
0%
Sunday
Rain Showers
62°/ 52° 17°/ 11°
50%
Monday
Rain Showers
58°/ 45° 14°/
50%
Tuesday
Partly Cloudy
62°/ 45° 17°/
0%
Wednesday
Partly Cloudy
65°/ 50° 18°/ 10°
0%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Partly Cloudy
68°20°
0%

Night: Cloudy with a chance of showers. A chance of thunderstorms, mainly this evening. Areas of fog. Lows around 60. Northeast winds 5 to 10 mph. Chance of rain 50 percent.

Parkston, SD

Tonight
Mostly Cloudy
62°17°
0%
Saturday
Cloudy
68°/ 58° 20°/ 14°
0%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
80%
Monday
Thunderstorms
62°/ 48° 17°/
70%
Tuesday
Mostly Cloudy
65°/ 50° 18°/ 10°
0%
Wednesday
Mostly Cloudy
68°/ 55° 20°/ 13°
50%
Thursday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Friday
Mostly Cloudy
72°22°
0%

Night: Mostly cloudy. Patchy fog after midnight. Lows in the lower 60s. North winds 5 to 10 mph.

Sibley, IA

Tonight
Thunderstorms
62°17°
50%
Saturday
Rain Showers
68°/ 55° 20°/ 13°
20%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
60%
Monday
Rain Showers
58°/ 48° 14°/
50%
Tuesday
Partly Cloudy
62°/ 45° 17°/
0%
Wednesday
Sunny
65°/ 50° 18°/ 10°
30%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Partly Cloudy
68°20°
0%

Night: Cloudy with a chance of showers and thunderstorms. Areas of fog. Lows in the lower 60s. East winds 5 to 10 mph with gusts up to 20 mph, becoming northeast after midnight. Chance of rain 50 percent.

Salem, SD

Tonight
Cloudy
62°17°
0%
Saturday
Cloudy
68°/ 55° 20°/ 13°
0%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
70%
Monday
Rain Showers
62°/ 48° 17°/
50%
Tuesday
Mostly Cloudy
65°/ 48° 18°/
0%
Wednesday
Mostly Cloudy
68°/ 52° 20°/ 11°
40%
Thursday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Friday
Partly Cloudy
72°22°
0%

Night: Cloudy. Patchy fog. Lows in the lower 60s. North winds 5 to 10 mph.

Names listed above may include county names.

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