Dewey County, SD Weather Forecast & Current Conditions

Feedback E-mail the Weather

Quick Clicks

Weather World

Dewey County, SD Weather Maps

°F °C°F °C
Dewey County Weather Map
UTC Time: 10/23/2026, 21:30
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Dewey County, SD Regional Weather

Expires:202610232200;;071459
ASUS43 KFSD 232110
RWRSD 

WEATHER ROUNDUP FOR SOUTH DAKOTA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
400 PM CDT FRI OCT 23 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>074-232200-
SOUTHWEST AND SOUTH CENTRAL SOUTH DAKOTA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
RAPID CTY ARPT SUNNY     82  34  17 SW16G30   29.72R TC  28           
PIERRE         SUNNY     84  54  35 S17G26    29.66S TC  29           
CUSTER         SUNNY     67  32  27 SW16G31   29.87R TC  19           
ELLSWORTH AFB  SUNNY     83  32  16 SW17G25   29.68R TC  28           
PHILIP         SUNNY     86  48  26 SW13      29.67S TC  30           
PINE RIDGE     SUNNY     79  47  32 W10       29.78S TC  26           
SPEARFISH      SUNNY     77  30  18 SW25G38   29.74S TC  25           
WINNER         PTSUNNY   84  52  33 S25G44    29.74S TC  29           
$$
 

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

Dewey County, SD

Tonight
Sprinkles
42°6°
0%
Saturday
Partly Cloudy
52°/ 32° 11°/ 0°
0%
Sunday
Rain
48°/ 32° 9°/ 0°
50%
Monday
Rain
45°/ 32° 7°/ 0°
50%
Tuesday
Partly Cloudy
50°/ 35° 10°/ 2°
20%
Wednesday
Cloudy
52°11°
0%
Thu Night
Cloudy
52°11°
0%
Friday
Partly Cloudy
50°10°
0%

Night: Mostly clear this evening, then partly cloudy with a chance of sprinkles after midnight. Windy and much cooler with lows in the lower 40s. Southwest winds 15 to 20 mph with gusts up to 35 mph, becoming west 20 to 30 mph with gusts up to 50 mph after midnight.

McIntosh, SD

Tonight
Cloudy
38°3°
0%
Saturday
Sunny
52°/ 28° 11°/ -2°
0%
Sunday
Rain
48°/ 32° 9°/ 0°
50%
Monday
Snow
45°/ 28° 7°/ -2°
40%
Tuesday
Partly Cloudy
50°/ 35° 10°/ 2°
20%
Wednesday
Rain
52°/ 28° 11°/ -2°
20%
Thu Night
Cloudy
28°-2°
0%
Friday
Partly Cloudy
48°9°
0%

Night: Mostly clear this evening, then becoming partly cloudy. Windy and much cooler with lows in the upper 30s. South winds 15 to 20 mph with gusts up to 35 mph, becoming west 20 to 30 mph with gusts up to 50 mph after midnight.

Fort Pierre, SD

Tonight
Rain Showers
45°7°
30%
Saturday
Mostly Cloudy
52°/ 35° 11°/ 2°
0%
Sunday
Rain
48°/ 35° 9°/ 2°
70%
Monday
Rain
45°/ 32° 7°/ 0°
70%
Tuesday
Mostly Cloudy
52°/ 35° 11°/ 2°
0%
Wednesday
Cloudy
35°2°
0%
Thu Night
Cloudy
35°2°
0%
Friday
Partly Cloudy
52°11°
0%

Night: Mostly clear this evening, then mostly cloudy with a chance of showers after midnight. Very windy and cooler with lows in the mid 40s. Southwest winds 15 to 20 mph with gusts up to 30 mph, increasing to west 25 to 35 mph with gusts up to 50 mph after midnight. Chance of rain 30 percent.

Gettysburg, SD

Tonight
Sprinkles
42°6°
0%
Saturday
Sprinkles
52°/ 32° 11°/ 0°
0%
Sunday
Rain
48°/ 32° 9°/ 0°
50%
Monday
Rain
45°/ 30° 7°/ -1°
50%
Tuesday
Partly Cloudy
50°/ 35° 10°/ 2°
20%
Wednesday
Cloudy
52°11°
0%
Thu Night
Cloudy
52°11°
0%
Friday
Rain
50°10°
20%

Night: Partly cloudy. A chance of sprinkles after midnight. Breezy, cooler with lows in the lower 40s. South winds 15 to 20 mph, becoming west 20 to 25 mph after midnight. Gusts up to 45 mph.

Mobridge, SD

Tonight
Sprinkles
42°6°
0%
Saturday
Partly Cloudy
52°/ 30° 11°/ -1°
0%
Sunday
Rain
48°/ 32° 9°/ 0°
50%
Monday
Rain
45°/ 28° 7°/ -2°
50%
Tuesday
Partly Cloudy
50°/ 35° 10°/ 2°
20%
Wednesday
Rain
55°/ 30° 13°/ -1°
20%
Thu Night
Cloudy
30°-1°
0%
Friday
Partly Cloudy
48°9°
0%

Night: Partly cloudy. A chance of sprinkles after midnight. Windy, cooler with lows in the lower 40s. South winds 15 to 20 mph, becoming west 20 to 30 mph after midnight.

Onida, SD

Tonight
Sprinkles
42°6°
0%
Saturday
Mostly Cloudy
52°/ 35° 11°/ 2°
0%
Sunday
Rain
48°/ 32° 9°/ 0°
60%
Monday
Rain
45°/ 32° 7°/ 0°
70%
Tuesday
Mostly Cloudy
52°/ 35° 11°/ 2°
0%
Wed Night
Cloudy
35°2°
0%
Thu-Thu Night
Cloudy
52°11°
0%
Friday
Rain
52°11°
20%

Night: Mostly clear this evening, then mostly cloudy with a chance of sprinkles after midnight. Windy and much cooler with lows in the lower 40s. South winds 20 to 25 mph, becoming west 20 to 30 mph after midnight. Gusts up to 45 mph.

Pierre, SD

Tonight
Sprinkles
45°7°
0%
Saturday
Mostly Cloudy
55°/ 35° 13°/ 2°
0%
Sunday
Rain
48°/ 35° 9°/ 2°
70%
Monday
Rain
45°/ 32° 7°/ 0°
70%
Tuesday
Mostly Cloudy
52°/ 35° 11°/ 2°
0%
Wed Night
Cloudy
35°2°
0%
Thu-Thu Night
Cloudy
52°11°
0%
Friday
Rain
52°11°
20%

Night: Mostly clear this evening, then partly cloudy with a chance of sprinkles after midnight. Windy, cooler with lows in the mid 40s. South winds 20 to 25 mph, becoming west 20 to 30 mph after midnight. Gusts up to 45 mph.

Herreid, SD

Tonight
Cloudy
42°6°
0%
Saturday
Partly Cloudy
52°/ 28° 11°/ -2°
0%
Sunday
Rain
48°/ 30° 9°/ -1°
40%
Monday
Rain
45°/ 28° 7°/ -2°
40%
Tuesday
Partly Cloudy
50°/ 32° 10°/ 0°
20%
Wed Night
Cloudy
28°-2°
0%
Thu Night
Cloudy
28°-2°
0%
Friday
Partly Cloudy
48°9°
0%

Night: Partly cloudy and breezy. Much cooler with lows in the lower 40s. South winds 15 to 20 mph, becoming west 20 to 25 mph after midnight. Gusts up to 40 mph.

Ipswich, SD

Tonight
Cloudy
45°7°
0%
Saturday
Partly Cloudy
52°/ 32° 11°/ 0°
0%
Sunday
Rain
48°/ 32° 9°/ 0°
50%
Monday
Rain
42°/ 30° 6°/ -1°
50%
Tuesday
Mostly Cloudy
48°/ 35° 9°/ 2°
20%
Wed Night
Cloudy
32°0°
0%
Thu Night
Cloudy
32°0°
0%
Friday
Snow
48°9°
20%

Night: Partly cloudy and breezy, cooler with lows in the mid 40s. South winds 20 to 25 mph, becoming southwest after midnight. Gusts up to 40 mph.

Fort Yates, ND

Today
Sunny
78°/ 38° 26°/ 3°
0%
Saturday
Sunny
52°/ 28° 11°/ -2°
0%
Sunday
Partly Cloudy
48°/ 32° 9°/ 0°
30%
Monday
Rain Showers
45°/ 32° 7°/ 0°
30%
Tuesday
Partly Cloudy
48°/ 35° 9°/ 2°
30%
Wednesday
Rain Showers
52°/ 28° 11°/ -2°
30%
Thursday
Sunny
48°9°
0%

Day: Mostly sunny. Highs in the upper 70s. South winds 15 to 20 mph with gusts up to 30 mph.

Night: Increasing clouds. Windy, colder. Lows in the upper 30s. South winds 10 to 15 mph with gusts up to 30 mph, increasing to west 20 to 30 mph with gusts up to 45 mph after midnight.

Murdo, SD

Tonight
Rain Showers
45°7°
30%
Saturday
Mostly Cloudy
52°/ 38° 11°/ 3°
0%
Sunday
Rain
48°/ 35° 9°/ 2°
90%
Monday
Rain
45°/ 32° 7°/ 0°
80%
Tuesday
Mostly Cloudy
55°/ 35° 13°/ 2°
0%
Wednesday
Cloudy
35°2°
0%
Thu Night
Cloudy
35°2°
0%
Friday
Partly Cloudy
55°13°
0%

Night: Mostly clear this evening, then mostly cloudy with a chance of showers after midnight. Windy, cooler with lows in the mid 40s. Southwest winds 15 to 20 mph with gusts up to 30 mph, becoming west 20 to 30 mph with gusts up to 45 mph after midnight. Chance of rain 30 percent.

Faulkton, SD

Tonight
Sprinkles
45°7°
0%
Saturday
Sprinkles
52°/ 32° 11°/ 0°
0%
Sunday
Rain
48°/ 32° 9°/ 0°
50%
Monday
Rain
45°/ 32° 7°/ 0°
60%
Tuesday
Mostly Cloudy
48°/ 35° 9°/ 2°
20%
Wednesday
Cloudy
52°11°
0%
Thu Night
Cloudy
52°11°
0%
Friday
Rain
50°10°
20%

Night: Partly cloudy. A chance of sprinkles after midnight. Breezy, cooler with lows in the mid 40s. South winds 15 to 25 mph, becoming southwest 20 to 25 mph after midnight. Gusts up to 45 mph.

Highmore, SD

Tonight
Sprinkles
45°7°
0%
Saturday
Partly Cloudy
52°/ 35° 11°/ 2°
0%
Sunday
Rain
45°/ 32° 7°/ 0°
70%
Monday
Rain
45°/ 32° 7°/ 0°
70%
Tuesday
Mostly Cloudy
52°/ 38° 11°/ 3°
20%
Wednesday
Cloudy
55°13°
0%
Thu Night
Cloudy
55°13°
0%
Friday
Rain
52°11°
20%

Night: Partly cloudy. A chance of sprinkles after midnight. Windy, cooler with lows in the mid 40s. South winds 20 to 30 mph, becoming southwest 20 to 25 mph after midnight. Gusts up to 45 mph.

Eureka, SD

Tonight
Cloudy
45°7°
0%
Saturday
Partly Cloudy
52°/ 32° 11°/ 0°
0%
Sunday
Rain
48°/ 32° 9°/ 0°
40%
Monday
Snow
42°/ 30° 6°/ -1°
40%
Tuesday
Mostly Cloudy
48°/ 35° 9°/ 2°
30%
Wednesday
Rain
52°/ 32° 11°/ 0°
20%
Thu Night
Cloudy
32°0°
0%
Friday
Snow
48°9°
20%

Night: Partly cloudy and windy, cooler with lows in the mid 40s. South winds 15 to 25 mph, becoming southwest 20 to 30 mph after midnight.

Linton, ND

Today
Sunny
78°/ 40° 26°/ 4°
0%
Saturday
Sunny
52°/ 28° 11°/ -2°
0%
Sunday
Partly Cloudy
48°/ 30° 9°/ -1°
30%
Monday
Rain Showers
45°/ 28° 7°/ -2°
30%
Tuesday
Partly Cloudy
48°/ 35° 9°/ 2°
30%
Wednesday
Rain Showers
52°/ 28° 11°/ -2°
30%
Thursday
Sunny
48°9°
0%

Day: Mostly sunny. Highs in the upper 70s. South winds 15 to 20 mph.

Night: Increasing clouds. Windy, colder. Lows around 40. South winds 10 to 15 mph with gusts up to 25 mph, increasing to west 15 to 30 mph with gusts up to 40 mph after midnight.

Porcupine, ND

Today
Sunny
78°/ 38° 26°/ 3°
0%
Saturday
Sunny
52°/ 28° 11°/ -2°
0%
Sunday
Partly Cloudy
48°/ 32° 9°/ 0°
40%
Monday
Rain Showers
45°/ 30° 7°/ -1°
30%
Tuesday
Partly Cloudy
48°/ 35° 9°/ 2°
30%
Wednesday
Rain Showers
52°/ 28° 11°/ -2°
20%
Thursday
Sunny
48°9°
0%

Day: Sunny. Highs in the upper 70s. South winds 15 to 20 mph with gusts up to 30 mph.

Night: Increasing clouds. Very windy. Colder. Lows in the upper 30s. Southwest winds 10 to 20 mph with gusts up to 35 mph, increasing to west 25 to 35 mph with gusts up to 50 mph after midnight.

Ashley, ND

Today
Partly Cloudy
75°/ 42° 24°/ 6°
0%
Saturday
Partly Cloudy
50°/ 30° 10°/ -1°
0%
Sunday
Partly Cloudy
45°/ 30° 7°/ -1°
30%
Monday
Rain Showers
42°/ 28° 6°/ -2°
40%
Tuesday
Partly Cloudy
45°/ 35° 7°/ 2°
30%
Wednesday
Rain Showers
50°/ 30° 10°/ -1°
20%
Thursday
Sunny
48°9°
0%

Day: Partly sunny. Highs in the mid 70s. South winds 15 to 20 mph with gusts up to 30 mph.

Night: Increasing clouds. Lows in the lower 40s. South winds 15 to 20 mph with gusts up to 30 mph, becoming southwest 15 to 25 mph with gusts up to 40 mph after midnight.

Elgin, ND

Today
Sunny
78°/ 35° 26°/ 2°
0%
Saturday
Sunny
52°/ 25° 11°/ -4°
0%
Sunday
Partly Cloudy
48°/ 28° 9°/ -2°
30%
Monday
Rain Showers
45°/ 28° 7°/ -2°
20%
Tuesday
Sunny
48°/ 32° 9°/ 0°
30%
Wednesday
Rain Showers
50°/ 25° 10°/ -4°
20%
Thursday
Sunny
48°9°
0%

Day: Sunny. Highs in the upper 70s. South winds around 15 mph with gusts up to 25 mph.

Night: Increasing clouds. Windy, colder. Lows in the mid 30s. Southwest winds 15 to 25 mph with gusts up to 35 mph, becoming west 25 to 30 mph with gusts up to 45 mph after midnight.

Kennebec, SD

Tonight
Rain Showers
45°7°
30%
Saturday
Partly Cloudy
55°/ 38° 13°/ 3°
20%
Sunday
Rain
48°/ 35° 9°/ 2°
90%
Monday
Rain
45°/ 35° 7°/ 2°
90%
Tuesday
Mostly Cloudy
55°/ 38° 13°/ 3°
0%
Wed Night
Cloudy
38°3°
0%
Thu-Thu Night
Cloudy
55°13°
0%
Friday
Rain
55°13°
20%

Night: Mostly clear this evening, then mostly cloudy with a chance of showers after midnight. Windy, cooler with lows in the mid 40s. South winds 20 to 25 mph, becoming west 20 to 30 mph after midnight. Gusts up to 45 mph. Chance of rain 30 percent.

Mandan, ND

Today
Sunny
78°/ 38° 26°/ 3°
0%
Saturday
Sunny
52°/ 28° 11°/ -2°
0%
Sunday
Sunny
48°/ 32° 9°/ 0°
20%
Monday
Rain Showers
45°/ 30° 7°/ -1°
30%
Tuesday
Sunny
48°/ 35° 9°/ 2°
30%
Wednesday
Rain Showers
50°/ 28° 10°/ -2°
30%
Thursday
Sunny
48°9°
0%

Day: Mostly sunny. Highs in the upper 70s. South winds 15 to 20 mph with gusts up to 30 mph.

Night: Increasing clouds. Windy, colder. Lows in the upper 30s. South winds 10 to 20 mph with gusts up to 30 mph, increasing to west 20 to 30 mph with gusts up to 50 mph after midnight.

Names listed above may include county names.

Trending Headlines

Trending Entertainment Headlines

Dewey County Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Dewey County Quick Facts

National Two Day Weather Forecast


E-mail the Dewey County Weather Forecast

Voice your opinion or tell us about page issues...