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Sioux Falls SD Weather - Thunder - 81°F
Thunder
81°F
Updated 7:50 pm
Feels Like 85°F
Humidity 60%
Wind S 13 mph
Barometer  29.91 in
Dew Point 66°F
Sioux Falls SD Weather - Thunder - 27°C
Thunder
27°C
Updated 7:50 pm
Feels Like 30°C
Humidity 60%
Wind S 21 km/h
Barometer  101.3 kPa
Dew Point 19°C
Sioux Falls, SD Weather and Current Conditionssioux falls sd weather forecast

Sioux Falls, SD Weather Forecast

Sioux Falls South Dakota WeatherSioux Falls, South Dakota Weather Weather Forecast
14 Day API Sioux Falls, SD Weather Forecast. Note: Our 7 day Sioux Falls, South Dakota weather forecast is our most reliable, and specific forecast. This model should only be used as a probable scenario. Forecasting more than 7 days ahead is challenging.
Sioux Falls, SD Weather Forecast Dated: 750 PM Thu Aug 20 2026 (Sioux Falls Time)
Thu, 20th
Sioux Falls SD Weather  - Thursday, Aug 20, 2026 - Sunny
Lo: 14°C57°F
Hi: 33°C92°F
Sunny Thursday, temperatures as high as 92°F33°C, low temperature around 57°F14°C, chance of rain 5%, wind out of the SSW 18 mph29 km/h. Barometric pressure 29.94 in1014 mb, visibility 6 mi9 km, humidity 67%.
Fri, 21st
Sioux Falls SD Weather  - Friday, Aug 21, 2026 - Sunny
Lo: 19°C65°F
Hi: 34°C93°F
Sunny Friday, temperatures as high as 93°F34°C, low temperature around 65°F19°C, chance of rain 1%, wind out of the NNW 10 mph16 km/h. Barometric pressure 29.94 in1014 mb, visibility 6 mi10 km, humidity 40%.
Sat, 22nd
Sioux Falls SD Weather  - Saturday, Aug 22, 2026 - Sunny
Lo: 19°C66°F
Hi: 32°C90°F
Sunny Saturday, temperatures as high as 90°F32°C, low temperature around 66°F19°C, chance of rain 3%, wind out of the E 13 mph22 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 44%.
Sun, 23rd
Sioux Falls SD Weather  - Sunday, Aug 23, 2026 - Overcast
Lo: 17°C62°F
Hi: 28°C83°F
Overcast Sunday, temperatures as high as 83°F28°C, low temperature around 62°F17°C, chance of rain 57%, wind out of the SSE 14 mph22 km/h. Barometric pressure 30.03 in1017 mb, visibility 6 mi10 km, humidity 49%.
Mon, 24th
Sioux Falls SD Weather  - Monday, Aug 24, 2026 - Sunny
Lo: 19°C66°F
Hi: 31°C87°F
Sunny Monday, temperatures as high as 87°F31°C, low temperature around 66°F19°C, chance of rain 36%, wind out of the SSE 15 mph23 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi9 km, humidity 65%.
Tue, 25th
Sioux Falls SD Weather  - Tuesday, Aug 25, 2026 - Partly Cloudy
Lo: 21°C70°F
Hi: 34°C93°F
Partly Cloudy Tuesday, temperatures as high as 93°F34°C, low temperature around 70°F21°C, chance of rain 57%, wind out of the W 14 mph22 km/h. Barometric pressure 29.88 in1012 mb, visibility 6 mi9 km, humidity 56%.
Wed, 26th
Sioux Falls SD Weather  - Wednesday, Aug 26, 2026 - Sunny
Lo: 19°C66°F
Hi: 30°C85°F
Sunny Wednesday, temperatures as high as 85°F30°C, low temperature around 66°F19°C, chance of rain 1%, wind out of the N 13 mph21 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 43%.
Thu, 27th
Sioux Falls SD Weather  - Thursday, Aug 27, 2026 - Sunny
Lo: 18°C64°F
Hi: 30°C87°F
Sunny Thursday, temperatures as high as 87°F30°C, low temperature around 64°F18°C, chance of rain 2%, wind out of the E 11 mph17 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 51%.
Fri, 28th
Sioux Falls SD Weather  - Friday, Aug 28, 2026 - Overcast
Lo: 19°C66°F
Hi: 27°C81°F
Overcast Friday, temperatures as high as 81°F27°C, low temperature around 66°F19°C, chance of rain 57%, wind out of the SSE 19 mph30 km/h. Barometric pressure 29.94 in1014 mb, visibility 6 mi10 km, humidity 68%.
Sat, 29th
Sioux Falls SD Weather  - Saturday, Aug 29, 2026 - Light Rain Shower
Lo: 19°C67°F
Hi: 32°C89°F
Light rain shower Saturday, temperatures as high as 89°F32°C, low temperature around 67°F19°C, chance of rain 67%, wind out of the SE 21 mph33 km/h. Barometric pressure 29.83 in1010 mb, visibility 6 mi10 km, humidity 64%.
Sun, 30th
Sioux Falls SD Weather  - Sunday, Aug 30, 2026 - Sunny
Lo: 20°C68°F
Hi: 38°C100°F
Sunny Sunday, temperatures as high as 100°F38°C, low temperature around 68°F20°C, chance of rain 6%, wind out of the SE 11 mph18 km/h. Barometric pressure 29.74 in1007 mb, visibility 6 mi9 km, humidity 56%.
Mon, 31st
Sioux Falls SD Weather  - Monday, Aug 31, 2026 - Overcast
Lo: 22°C72°F
Hi: 38°C101°F
Overcast Monday, temperatures as high as 101°F38°C, low temperature around 72°F22°C, chance of rain 17%, wind out of the SE 18 mph30 km/h. Barometric pressure 29.68 in1005 mb, visibility 6 mi10 km, humidity 53%.
Tue, 1st
Sioux Falls SD Weather  - Tuesday, Sep 1, 2026 - Sunny
Lo: 21°C69°F
Hi: 30°C86°F
Sunny Tuesday, temperatures as high as 86°F30°C, low temperature around 69°F21°C, chance of rain 4%, wind out of the NNW 20 mph32 km/h. Barometric pressure 29.88 in1012 mb, visibility 6 mi10 km, humidity 39%.
Wed, 2nd
Sioux Falls SD Weather  - Wednesday, Sep 2, 2026 - Overcast
Lo: 15°C59°F
Hi: 20°C67°F
Overcast Wednesday, temperatures as high as 67°F20°C, low temperature around 59°F15°C, chance of rain 87%, wind out of the ENE 14 mph23 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi10 km, humidity 90%.

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