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South Dakota weather live forecast
Today's maximum temperature in South Dakota is expected to be 91°F. Select a day from the live weather forecast for South Dakota (Sioux Falls), USA for more weather parameters.
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Saturday
16th Aug -
Sunday
17th Aug -
Monday
18th Aug -
Tuesday
19th Aug -
Wednesday
20th Aug
5-day weather forecast updated at 04:01 on Saturday 16th August 2025 GMT
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The 5-day weather forecast for South Dakota (Sioux Falls) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.
Top South Dakota destinations
Below are temperatures expected today at popular countries, regions and places in South Dakota. Select a destination to see the detailed weather forecast for today, tomorrow and the outlook for the next five days.
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South Dakota weather forecast by day
Below are the detailed weather forecasts for South Dakota for the next 5 days. The forecasts shown are for Sioux Falls and may not represent the whole of South Dakota. Browse more destinations in South Dakota to view more weather forecasts.
South Dakota weather for Saturday 16th August 2025
Expect isolated thunderstorms in South Dakota with a maximum temperature of 91°F, high levels of heat & humidity, maximum UV of 8 (Very High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 18% chance of some rain and a gentle breeze of 11 mph from the south-east.
- °F maximum temperature
- °F minimum temperature
- isolated thunderstorms
- hours of sunshine
- UV index (Very High)
- % chance of some rain
- mm of rainfall expected
- high heat & humidity
- mph wind from SE
South Dakota weather for Sunday 17th August 2025
Expect isolated thunderstorms in South Dakota with a maximum temperature of 90°F, moderate levels of heat & humidity, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 37% chance of some rain and a moderate breeze of 14 mph from the south.
- °F maximum temperature
- °F minimum temperature
- isolated thunderstorms
- hours of sunshine
- UV index (High)
- % chance of some rain
- mm of rainfall expected
- moderate heat & humidity
- mph wind from S
South Dakota weather for Monday 18th August 2025
Expect isolated thunderstorms in South Dakota with a maximum temperature of 90°F, moderate levels of heat & humidity, maximum UV of 6 (High) and 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 43% chance of some rain and a gentle breeze of 9 mph from the north-east.
- °F maximum temperature
- °F minimum temperature
- isolated thunderstorms
- hours of sunshine
- UV index (High)
- % chance of some rain
- mm of rainfall expected
- moderate heat & humidity
- mph wind from NE
South Dakota weather for Tuesday 19th August 2025
Expect isolated thunderstorms in South Dakota with a maximum temperature of 79°F, low levels of heat & humidity, maximum UV of 5 (Moderate) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 13% chance of some rain and a gentle breeze of 9 mph from the north-east.
- °F maximum temperature
- °F minimum temperature
- isolated thunderstorms
- hours of sunshine
- UV index (Moderate)
- % chance of some rain
- mm of rainfall expected
- low heat & humidity
- mph wind from NE
South Dakota weather for Wednesday 20th August 2025
Expect broken clouds in South Dakota with a maximum temperature of 81°F, low levels of heat & humidity, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 9 mph from the east.
- °F maximum temperature
- °F minimum temperature
- broken clouds
- hours of sunshine
- UV index (High)
- mm of rainfall expected
- low heat & humidity
- mph wind from E
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