Sioux Falls, SD Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Sioux Falls, SD.

1 Currently Active Alert for Sioux Falls

Current Conditions — Sioux Falls, SD

SIOUX FALLS (KFSD)

Mostly Cloudy

66.2 F
Humidity:83%
Wind Speed: 15.0 mph
Barometer:29.48 in
Dewpoint:60.8 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 23 2026, 10:15 AM CDT
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5-Day Forecast — Sioux Falls, SD

Thursday

High 80 °F
Chance of T-storms
Thursday
Night
Low 39 °F
Partly Cloudy
Friday

High 62 °F
Partly Sunny
Friday
Night
Low 41 °F
Slight Chance of Rain
Saturday

High 59 °F
Chance of Rain Showers
Saturday
Night
Low 44 °F
Slight Chance of Rain
Sunday

High 62 °F
T-storms Likely
Sunday
Night
Low 44 °F
Rain
Monday

High 57 °F
Rain Showers Likely

Detailed Forecast — Sioux Falls, SD

Thursday
Chance of Thunderstorms. High near 80°F. Wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday Night
Partly Cloudy. Low around 39°F. Wind 12 to 21 mph, with gusts as high as 32 mph.
Friday
Partly Sunny. High near 62°F. Wind 10 to 13 mph, with gusts as high as 20 mph.
Friday Night
Slight Chance of Rain. Low around 41°F. Wind around 6 mph, with gusts as high as 12 mph.
Saturday
Chance of Rain Showers. High near 59°F. Wind 8 to 9 mph, with gusts as high as 16 mph.
Saturday Night
Slight Chance of Rain. Low around 44°F. Wind around 6 mph, with gusts as high as 10 mph.
Sunday
Thunderstorms Likely. High near 62°F. Wind 17 to 18 mph, with gusts as high as 28 mph.
Sunday Night
Rain. Low around 44°F. Wind around 14 mph, with gusts as high as 22 mph.
Monday
Rain Showers Likely. High near 57°F. Wind 22 to 26 mph, with gusts as high as 37 mph.
Monday Night
Partly Cloudy. Low around 37°F. Wind around 14 mph, with gusts as high as 22 mph.
Tuesday
Mostly Cloudy. High near 57°F. Wind 8 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
Partly Cloudy. Low around 37°F. Wind around 3 mph, with gusts as high as 7 mph.
Wednesday
Slight Chance of Showers. High near 59°F. Wind around 8 mph, with gusts as high as 15 mph.
SD Radar
Current Radar • SD
Day 1 Outlook • April 23, 2026

Observation History — Sioux Falls, SD

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
10:15 AM CDT 15.0 10.00 Mostly Cloudy -- 66.2 60.8 83% NA NA 29.48 998.3
10:10 AM CDT 13.8 G 19.6 10.00 Cloudy -- 66.2 60.8 83% NA NA 29.48 998.3
10:00 AM CDT G 24.2 10.00 Cloudy -- 66.2 60.8 83% NA NA 29.48 998.3
09:50 AM CDT 16.1 G 25.3 10.00 Cloudy -- 64.4 60.8 88% NA NA 29.49 998.6
09:40 AM CDT 18.4 10.00 Cloudy -- 64.4 60.8 88% NA NA 29.49 998.6
09:35 AM CDT G 24.2 10.00 Cloudy -- 64.4 60.8 88% NA NA 29.49 998.6
09:25 AM CDT G 25.3 10.00 Cloudy -- 64.4 60.8 88% NA NA 29.48 998.3
09:20 AM CDT S 17.3 G 24.2 10.00 Cloudy -- 64.4 60.8 88% NA NA 29.48 998.3
09:15 AM CDT S 16.1 10.00 Cloudy -- 64.4 60.8 88% NA NA 29.48 998.3
09:10 AM CDT S 16.1 10.00 Cloudy -- 62.6 60.8 94% NA NA 29.48 998.3
09:05 AM CDT S 16.1 10.00 Cloudy -- 64.4 60.8 88% NA NA 29.48 998.3
08:50 AM CDT S 18.4 G 24.2 10.00 Cloudy -- 62.6 60.8 94% NA NA 29.48 998.3
08:45 AM CDT G 28.8 10.00 Cloudy -- 62.6 60.8 94% NA NA 29.48 998.3
08:40 AM CDT S 18.4 10.00 Cloudy -- 62.6 60.8 94% NA NA 29.48 998.3
08:30 AM CDT S 15.0 10.00 Cloudy -- 62.6 60.8 94% NA NA 29.49 998.6
08:25 AM CDT 10.00 Cloudy -- 62.6 60.8 94% NA NA 29.49 998.6
08:20 AM CDT 10.00 Cloudy -- 62.6 59.0 88% NA NA 29.49 998.6
08:15 AM CDT S 17.3 G 24.2 10.00 Cloudy -- 62.6 59.0 88% NA NA 29.49 998.6
08:10 AM CDT 10.00 Cloudy -- 62.6 59.0 88% NA NA 29.49 998.6
08:05 AM CDT S 17.3 G 24.2 10.00 Cloudy -- 62.6 59.0 88% NA NA 29.49 998.6
08:00 AM CDT S 15.0 10.00 Cloudy -- 62.6 59.0 88% NA NA 29.49 998.6
07:50 AM CDT G 27.6 10.00 Cloudy -- 62.6 59.0 88% NA NA 29.49 998.6
07:40 AM CDT 10.00 Cloudy -- 62.6 59.0 88% NA NA 29.50 999.0
07:35 AM CDT 10.00 Cloudy -- 62.6 59.0 88% NA NA 29.50 999.0

Regional Weather Observation

SIOUX FALLS (KFSD)

Mostly Cloudy
66.2 F

PIPESTONE (KPQN)

Cloudy and Windy
64.8 F

LUVERNE (KLYV)

Cloudy and Windy
64.4 F

MADISON (KMDS)

Mostly Clear and Windy
64.4 F

BROOKINGS (KBKX)

Cloudy and Windy
66.2 F

SLAYTON (KDVP)

Cloudy and Windy
66.2 F
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