Cass School, SD Weather Forecast & Current Conditions

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Cass School Weather Map
UTC Time: 9/17/2026, 22:46
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Cass School, SD Regional Weather

Expires:202609172300;;623902
ASUS43 KFSD 172210
RWRSD 

WEATHER ROUNDUP FOR SOUTH DAKOTA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
500 PM CDT THU SEP 17 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>074-172300-
SOUTHWEST AND SOUTH CENTRAL SOUTH DAKOTA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
RAPID CTY ARPT CLOUDY    68  56  65 E9        30.20F TC  20           
PIERRE         CLOUDY    72  59  63 SE14      30.19F TC  22           
CUSTER         CLOUDY    60  53  77 E7        30.29F TC  16           
ELLSWORTH AFB  CLOUDY    69  56  63 E7        30.17F TC  21           
PHILIP         CLOUDY    70  56  61 E12       30.18F TC  21           
WINNER         CLOUDY    73  60  63 SE14      30.21F TC  23           
$$
 

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

Cass School, SD

Tonight
Thunderstorms
58°14°
100%
Friday
Thunderstorms
68°/ 55° 20°/ 13°
70%
Saturday
Cloudy
65°/ 52° 18°/ 11°
20%
Sun-Sun Night
Rain Showers
65°18°
70%
Monday
Rain Showers
62°/ 48° 17°/
50%
Tuesday
Rain Showers
68°/ 52° 20°/ 11°
40%
Wed Night
Thunderstorms
55°13°
20%
Thursday
Partly Cloudy
75°24°
0%

Night: A chance of showers this evening, then showers with a chance of thunderstorms after midnight. Locally heavy rainfall possible after midnight. Lows in the upper 50s. East winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100 percent.

Gettysburg, SD

Tonight
Thunderstorms
55°13°
100%
Friday
Thunderstorms
65°/ 52° 18°/ 11°
70%
Saturday
Cloudy
65°/ 52° 18°/ 11°
20%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
70%
Monday
Rain Showers
62°/ 48° 17°/
50%
Tue Night
Rain Showers
52°11°
30%
Wednesday
Rain Showers
72°/ 55° 22°/ 13°
40%
Thursday
Partly Cloudy
75°24°
0%

Night: A chance of showers this evening, then showers with a slight chance of thunderstorms after midnight. Lows in the mid 50s. East winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100 percent.

Pierre, SD

Tonight
Thunderstorms
58°14°
100%
Friday
Thunderstorms
70°/ 55° 21°/ 13°
70%
Saturday
Cloudy
65°/ 52° 18°/ 11°
40%
Sun-Sun Night
Rain Showers
65°18°
70%
Monday
Rain Showers
62°/ 50° 17°/ 10°
50%
Tuesday
Rain Showers
68°/ 52° 20°/ 11°
40%
Wednesday
Rain Showers
72°/ 55° 22°/ 13°
40%
Thursday
Partly Cloudy
78°26°
0%

Night: A chance of showers with a slight chance of thunderstorms this evening, then showers with a chance of thunderstorms after midnight. Locally heavy rainfall possible after midnight. Breezy and not as cool with lows in the upper 50s. East winds 15 to 25 mph. Chance of rain near 100 percent.

Fort Pierre, SD

Tonight
Thunderstorms
58°14°
100%
Friday
Rain Showers
72°/ 55° 22°/ 13°
70%
Saturday
Rain Showers
65°/ 52° 18°/ 11°
50%
Sun-Sun Night
Rain Showers
65°18°
70%
Monday
Rain Showers
65°/ 50° 18°/ 10°
50%
Tuesday
Rain Showers
72°/ 55° 22°/ 13°
40%
Wed Night
Rain Showers
55°13°
20%
Thursday
Partly Cloudy
78°26°
0%

Night: A chance of showers with a slight chance of thunderstorms this evening, then showers with a chance of thunderstorms after midnight. Lows in the upper 50s. East winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100 percent.

Isabel, SD

Tonight
Thunderstorms
58°14°
100%
Friday
Rain Showers
68°/ 52° 20°/ 11°
70%
Saturday
Rain Showers
65°/ 52° 18°/ 11°
40%
Sun-Sun Night
Rain Showers
65°18°
70%
Monday
Rain Showers
65°/ 50° 18°/ 10°
50%
Tuesday
Rain Showers
70°/ 52° 21°/ 11°
40%
Wednesday
Rain Showers
75°/ 55° 24°/ 13°
40%
Thursday
Partly Cloudy
78°26°
0%

Night: A chance of showers this evening, then showers with a slight chance of thunderstorms after midnight. Lows in the upper 50s. East winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100 percent.

Mobridge, SD

Tonight
Thunderstorms
55°13°
90%
Friday
Rain Showers
65°/ 52° 18°/ 11°
70%
Saturday
Cloudy
65°/ 52° 18°/ 11°
0%
Sun-Sun Night
Rain Showers
65°18°
50%
Monday
Rain Showers
62°/ 48° 17°/
50%
Tue Night
Rain Showers
52°11°
20%
Wednesday
Rain Showers
72°/ 55° 22°/ 13°
40%
Thursday
Partly Cloudy
75°24°
0%

Night: Cloudy. A slight chance of showers this evening, then showers with a slight chance of thunderstorms after midnight. Lows in the mid 50s. East winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 90 percent.

Highmore, SD

Tonight
Thunderstorms
58°14°
100%
Friday
Thunderstorms
68°/ 55° 20°/ 13°
90%
Saturday
Cloudy
62°/ 52° 17°/ 11°
20%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
70%
Monday
Rain Showers
62°/ 48° 17°/
50%
Tuesday
Mostly Cloudy
68°/ 52° 20°/ 11°
40%
Wed Night
Thunderstorms
55°13°
20%
Thursday
Partly Cloudy
75°24°
0%

Night: A chance of showers with a slight chance of thunderstorms this evening, then showers with a chance of thunderstorms after midnight. Locally heavy rainfall possible after midnight. Breezy with lows in the upper 50s. East winds 15 to 25 mph. Chance of rain near 100 percent.

Faulkton, SD

Tonight
Thunderstorms
55°13°
100%
Friday
Thunderstorms
65°/ 52° 18°/ 11°
100%
Saturday
Rain Showers
65°/ 52° 18°/ 11°
20%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
70%
Monday
Rain Showers
62°/ 48° 17°/
50%
Tue Night
Rain Showers
52°11°
30%
Wednesday
Rain Showers
68°/ 55° 20°/ 13°
40%
Thursday
Partly Cloudy
75°24°
0%

Night: Showers with a slight chance of thunderstorms after midnight. Locally heavy rainfall possible after midnight. Lows in the mid 50s. East winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100 percent.

McIntosh, SD

Tonight
Rain Showers
55°13°
90%
Friday
Rain Showers
68°/ 52° 20°/ 11°
70%
Saturday
Rain Showers
65°/ 52° 18°/ 11°
50%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
70%
Monday
Rain Showers
65°/ 50° 18°/ 10°
20%
Tuesday
Rain Showers
70°/ 52° 21°/ 11°
40%
Wed Night
Thunderstorms
55°13°
20%
Thursday
Partly Cloudy
78°26°
0%

Night: Cloudy. A chance of showers this evening, then showers after midnight. Not as cool with lows in the mid 50s. East winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 90 percent.

Ipswich, SD

Tonight
Thunderstorms
55°13°
90%
Friday
Rain Showers
65°/ 52° 18°/ 11°
90%
Saturday
Cloudy
65°/ 52° 18°/ 11°
0%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
50%
Monday
Rain Showers
62°/ 48° 17°/
50%
Tue Night
Rain Showers
52°11°
30%
Wednesday
Rain Showers
68°/ 52° 20°/ 11°
40%
Thursday
Partly Cloudy
75°24°
0%

Night: Cloudy. Showers with a slight chance of thunderstorms after midnight. Locally heavy rainfall possible after midnight. Lows in the mid 50s. East winds 15 to 20 mph. Chance of rain 90 percent.

Murdo, SD

Tonight
Thunderstorms
58°14°
100%
Friday
Rain Showers
72°/ 55° 22°/ 13°
50%
Saturday
Rain Showers
65°/ 52° 18°/ 11°
50%
Sunday
Thunderstorms
65°/ 52° 18°/ 11°
80%
Monday
Rain Showers
65°/ 50° 18°/ 10°
50%
Tue Night
Thunderstorms
55°13°
50%
Wednesday
Thunderstorms
78°/ 55° 26°/ 13°
50%
Thursday
Partly Cloudy
78°26°
0%

Night: A chance of thunderstorms. Showers. Locally heavy rainfall possible this evening. Breezy with lows in the upper 50s. East winds 15 to 25 mph. Chance of rain near 100 percent.

Miller, SD

Tonight
Thunderstorms
58°14°
100%
Friday
Thunderstorms
68°/ 55° 20°/ 13°
100%
Saturday
Cloudy
65°/ 52° 18°/ 11°
20%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
70%
Monday
Rain Showers
62°/ 48° 17°/
50%
Tuesday
Mostly Cloudy
68°/ 52° 20°/ 11°
40%
Wed Night
Thunderstorms
55°13°
30%
Thursday
Partly Cloudy
75°24°
0%

Night: A chance of showers this evening, then showers with a chance of thunderstorms after midnight. Locally heavy rainfall possible after midnight. Lows in the upper 50s. East winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100 percent.

Kennebec, SD

Tonight
Thunderstorms
60°16°
100%
Friday
Rain Showers
72°/ 55° 22°/ 13°
50%
Saturday
Rain Showers
65°/ 55° 18°/ 13°
50%
Sunday
Thunderstorms
65°/ 52° 18°/ 11°
70%
Monday
Rain Showers
65°/ 50° 18°/ 10°
50%
Tue Night-Wed
Rain Showers
55°13°
50%
Wed Night
Thunderstorms
55°13°
20%
Thursday
Partly Cloudy
78°26°
0%

Night: Showers with a chance of thunderstorms. Locally heavy rainfall possible. Lows around 60. East winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100 percent.

Herreid, SD

Tonight
Rain Showers
55°13°
90%
Friday
Rain Showers
65°/ 52° 18°/ 11°
70%
Saturday
Rain Showers
68°/ 52° 20°/ 11°
20%
Sunday
Rain Showers
65°/ 50° 18°/ 10°
50%
Monday
Rain Showers
65°/ 48° 18°/
20%
Tue Night
Rain Showers
52°11°
20%
Wednesday
Rain Showers
72°/ 52° 22°/ 11°
40%
Thursday
Partly Cloudy
75°24°
0%

Night: Cloudy. Showers after midnight. Not as cool with lows in the mid 50s. East winds 15 to 20 mph. Chance of rain 90 percent.

Eureka, SD

Tonight
Rain Showers
55°13°
70%
Friday
Rain Showers
65°/ 52° 18°/ 11°
70%
Saturday
Cloudy
65°/ 52° 18°/ 11°
0%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
40%
Monday
Rain Showers
65°/ 48° 18°/
20%
Tue Night
Rain Showers
52°11°
30%
Wednesday
Rain Showers
65°/ 52° 18°/ 11°
40%
Thursday
Partly Cloudy
72°22°
0%

Night: Cloudy. Showers likely after midnight. Lows in the mid 50s. East winds 15 to 20 mph. Chance of rain 70 percent.

Fort Thompson, SD

Tonight
Thunderstorms
58°14°
100%
Friday
Thunderstorms
72°/ 55° 22°/ 13°
70%
Saturday
Cloudy
65°/ 55° 18°/ 13°
20%
Sunday
Rain Showers
62°/ 52° 17°/ 11°
70%
Monday
Rain Showers
62°/ 48° 17°/
50%
Tuesday
Mostly Cloudy
68°/ 52° 20°/ 11°
40%
Wed Night
Thunderstorms
55°13°
20%
Thursday
Partly Cloudy
75°24°
0%

Night: A chance of thunderstorms. Showers. Locally heavy rainfall possible. Lows in the upper 50s. East winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100 percent.

Huron, SD

Tonight
Thunderstorms
58°14°
100%
Friday
Thunderstorms
68°/ 55° 20°/ 13°
100%
Saturday
Cloudy
65°/ 52° 18°/ 11°
0%
Sunday
Rain Showers
65°/ 52° 18°/ 11°
70%
Monday
Rain Showers
62°/ 48° 17°/
50%
Tuesday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Wednesday
Rain Showers
68°/ 55° 20°/ 13°
40%
Thursday
Sunny
72°22°
0%

Night: A slight chance of showers this evening, then showers with a chance of thunderstorms after midnight. Locally heavy rainfall possible after midnight. Lows in the upper 50s. East winds around 10 mph with gusts up to 20 mph, increasing to 15 to 20 mph with gusts up to 30 mph after midnight. Chance of rain near 100 percent.

Redfield, SD

Tonight
Thunderstorms
58°14°
100%
Friday
Thunderstorms
65°/ 55° 18°/ 13°
100%
Saturday
Cloudy
65°/ 52° 18°/ 11°
0%
Sunday
Rain Showers
68°20°
40%
Sun Night-Mon
Rain Showers
52°11°
50%
Mon Night-Tue
Mostly Cloudy
48°
0%
Tue Night
Rain Showers
52°11°
20%
Wednesday
Rain Showers
68°/ 55° 20°/ 13°
40%
Thursday
Partly Cloudy
75°24°
0%

Night: Showers with a slight chance of thunderstorms after midnight. Locally heavy rainfall possible after midnight. Lows in the upper 50s. East winds 15 to 20 mph. Chance of rain near 100 percent.

Ashley, ND

Today
Partly Cloudy
70°/ 55° 21°/ 13°
60%
Friday
Rain Showers
65°/ 52° 18°/ 11°
60%
Saturday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Sunday
Rain Showers
65°/ 50° 18°/ 10°
30%
Monday
Partly Cloudy
65°/ 48° 18°/
0%
Tuesday
Partly Cloudy
68°/ 50° 20°/ 10°
30%
Wednesday
Rain Showers
65°18°
40%

Day: Partly sunny. Highs around 70. East winds around 10 mph with gusts up to 20 mph.

Night: Cloudy. Showers likely after midnight. Lows in the mid 50s. East winds 10 to 20 mph. Chance of rain 60 percent.

Linton, ND

Today
Partly Cloudy
72°/ 55° 22°/ 13°
60%
Friday
Rain Showers
68°/ 50° 20°/ 10°
50%
Saturday
Mostly Cloudy
68°/ 50° 20°/ 10°
0%
Sunday
Rain Showers
68°/ 50° 20°/ 10°
30%
Monday
Mostly Cloudy
68°/ 48° 20°/
0%
Tuesday
Partly Cloudy
70°/ 50° 21°/ 10°
30%
Wednesday
Rain Showers
72°22°
40%

Day: Partly sunny. Highs in the lower 70s. Southeast winds around 15 mph.

Night: Cloudy. A slight chance of showers in the evening, then showers likely after midnight. Lows in the mid 50s. Southeast winds 10 to 15 mph. Chance of rain 60 percent.

Names listed above may include county names.

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