South Dakota Weather
Live radar, National Weather Service alerts, current conditions and a 7-day forecast for South Dakota.
Updated Jul 29, 2026, 6:41 PM · Radar refreshes every 5 minutes
☀️
Sioux Falls
91°F
Wind 10 mph
Humidity 36%
Storm risk Marginal Risk
Alerts 3
⛈️
Marginal Risk of severe thunderstorms
NOAA Storm Prediction Center day-1 outlook covering part of South Dakota.
Active alerts (3)
Heat AdvisoryModerate
Expected
Corson; Campbell; Walworth; Dewey; Potter; Faulk; Spink; Stanley; Sully; Hughes; Hyde; Hand; Jones; Lyman; Buffalo
From Jul 29, 2026, 5:42 PM until Jul 30, 2026, 2:00 AM
Full details
* WHAT...Heat index values up to 103. * WHERE...Portions of central, north central, and northeast South Dakota. * WHEN...Until 9 PM CDT /8 PM MDT/ this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Heat AdvisoryModerate
Expected
Traverse; Big Stone; McPherson; Brown; Marshall; Roberts; Edmunds; Day; Clark; Grant; Deuel
From Jul 29, 2026, 5:42 PM until Jul 30, 2026, 2:00 AM
Full details
* WHAT...Heat index values up to 103. * WHERE...Portions of west central Minnesota and north central and northeast South Dakota. * WHEN...Until 9 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Heat AdvisoryModerate
Expected
Northern Perkins; Northern Meade Co Plains; Ziebach; Pennington Co Plains; Haakon; Northern Oglala Lakota; Northern Jackson; Mellette; Tripp; Southern Meade Co Plains; Southern Jackson; Southern Perkins
From Jul 29, 2026, 6:00 PM until Jul 30, 2026, 1:00 AM
Full details
* WHAT...Heat index values up to 103 expected. * WHERE...Portions of northwestern, south central, and southwestern South Dakota. * WHEN...From noon MDT /1 PM CDT/ today to 7 PM MDT /8 PM CDT/ this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Live radar
Light
Heavy
Current conditions across South Dakota
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Sioux Falls
Clear
91°Ffeels 94°F
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Rapid City
Clear
94°Ffeels 96°F
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Aberdeen
Clear
93°Ffeels 101°F
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Pierre
Clear
96°Ffeels 101°F
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Watertown
Clear
89°Ffeels 93°F
7-day forecast
Today
Jul 29
☁️
94°F
72°F
1%
Thu
Jul 30
🌧️
92°F
72°F
60%
Fri
Jul 31
🌦️
72°F
64°F
91%
Sat
Aug 1
☀️
90°F
62°F
2%
Sun
Aug 2
☁️
95°F
65°F
Mon
Aug 3
☁️
98°F
68°F
3%
Tue
Aug 4
🌧️
95°F
65°F
32%
Today
Jul 29
🌦️
97°F
70°F
42%
Thu
Jul 30
☁️
85°F
70°F
24%
Fri
Jul 31
☁️
92°F
65°F
13%
Sat
Aug 1
☀️
99°F
70°F
8%
Sun
Aug 2
☁️
108°F
78°F
2%
Mon
Aug 3
☁️
94°F
73°F
3%
Tue
Aug 4
☁️
81°F
63°F
28%
Today
Jul 29
☁️
96°F
68°F
1%
Thu
Jul 30
🌧️
93°F
71°F
50%
Fri
Jul 31
☁️
89°F
66°F
39%
Sat
Aug 1
☁️
98°F
66°F
1%
Sun
Aug 2
☁️
106°F
72°F
Mon
Aug 3
🌦️
105°F
76°F
30%
Tue
Aug 4
🌦️
87°F
61°F
30%
Today
Jul 29
☁️
99°F
71°F
2%
Thu
Jul 30
🌦️
91°F
73°F
39%
Fri
Jul 31
☁️
92°F
68°F
45%
Sat
Aug 1
☀️
100°F
72°F
1%
Sun
Aug 2
☁️
109°F
76°F
Mon
Aug 3
🌦️
113°F
83°F
6%
Tue
Aug 4
🌦️
88°F
67°F
23%
Today
Jul 29
☁️
93°F
69°F
4%
Thu
Jul 30
🌦️
91°F
70°F
59%
Fri
Jul 31
🌧️
84°F
66°F
84%
Sat
Aug 1
☁️
94°F
63°F
4%
Sun
Aug 2
☁️
97°F
67°F
Mon
Aug 3
☁️
99°F
74°F
29%
Tue
Aug 4
🌧️
84°F
64°F
39%
South Dakota weather by city
6 cities with their own radar and forecast page.
Alerts are relayed from the National Weather Service and may lag
the official source. In a life-threatening situation always follow
weather.gov and local emergency
broadcasts.