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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
Clear
91°F
Feels like 94°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

☀️
Sioux Falls
Clear
91°Ffeels 94°F
☀️
Rapid City
Clear
94°Ffeels 96°F
☀️
Aberdeen
Clear
93°Ffeels 101°F
☀️
Pierre
Clear
96°Ffeels 101°F
☀️
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%

South Dakota weather by city

SD Sioux FallsSD Rapid CitySD AberdeenSD BrookingsSD WatertownSD Mitchell

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.