Sioux County, ND Weather Forecast

County weather hub

36°
F

Mostly Cloudy

Compare major city weather across Sioux County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.

Friday, April 17, 2026
Wind: 22 to 29 mph NW
Today

Mostly cloudy. High near 36, with temperatures falling to around 34 in the afternoon. Northwest wind 22 to 29 mph, with gusts as high as 40 mph.

County weather hub

County Weather Overview

This county weather page brings together forecast coverage for Sioux County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.

Current forecast coverage spans 0 of 0 mapped cities in Sioux County.

Page Snapshot

Page focus
county weather
Forecast window
Apr 17 to Apr 23, 2026
Latest sync
Apr 17, 2026 11:58 AM CDT
Forecast office
BIS
Source
NOAA / NWS
Next High
36°F
Today
Next Low
20°F
Tonight
Rain Outlook
3
Periods mentioning precipitation
Windiest
22 to 29 mph
Today

Daily Outlook

Today
Apr 17
Mostly Cloudy
36 °F
/ 20°F
Wind 22 to 29 mph
Sat
Apr 18
Mostly Sunny
44 °F
/ 25°F
Wind 16 to 22 mph
Sun
Apr 19
Sunny
51 °F
/ 34°F
Wind 7 to 10 mph
Mon
Apr 20
Mostly Sunny
71 °F
/ 38°F
Wind 15 to 22 mph
Tue
Apr 21
Sunny
71 °F
/ 48°F
Wind 8 to 15 mph
Wed
Apr 22
Mostly Sunny
79 °F
/ 52°F
Wind 15 to 21 mph
Thu
Apr 23
Chance Light Rain
67 °F
/ 39°F
Wind 18 to 24 mph

This Week in Sioux County

Wednesday looks like the warmest upcoming period in Sioux County at 79 degrees F.

Tonight is the coolest period ahead with temperatures near 20 degrees F.

The strongest winds are forecast for Today at about 22 to 29 mph NW.

Precipitation is mentioned in 3 upcoming forecast periods.

Forecast Details

Last updated
Apr 17, 2026 11:58 AM CDT
Coverage
7 days
Time zone
America/Chicago
Forecast office
BIS
Radar station
KBIS

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Tonight
Apr 17
20°F
Mostly Clear
15 to 28 mph NW

Mostly clear, with a low around 20. Northwest wind 15 to 28 mph, with gusts as high as 39 mph.

Saturday
Apr 18
44°F
Mostly Sunny
16 to 22 mph NW

Mostly sunny, with a high near 44. Northwest wind 16 to 22 mph, with gusts as high as 32 mph.

Saturday Night
Apr 18
25°F
Partly Cloudy
7 to 21 mph W

Partly cloudy, with a low around 25. West wind 7 to 21 mph, with gusts as high as 30 mph.

Sunday
Apr 19
51°F
Sunny
7 to 10 mph NE

Sunny, with a high near 51. Northeast wind 7 to 10 mph.

Sunday Night
Apr 19
34°F
Mostly Clear
12 to 18 mph SE

Mostly clear, with a low around 34. Southeast wind 12 to 18 mph, with gusts as high as 28 mph.

Monday
Apr 20
71°F
Mostly Sunny
15 to 22 mph SW

Mostly sunny, with a high near 71. Southwest wind 15 to 22 mph, with gusts as high as 28 mph.

Monday Night
Apr 20
38°F
Mostly Clear
9 to 14 mph N

Mostly clear, with a low around 38. North wind 9 to 14 mph, with gusts as high as 21 mph.

Tuesday
Apr 21
71°F
Sunny
8 to 15 mph E

Sunny, with a high near 71. East wind 8 to 15 mph, with gusts as high as 22 mph.

Tuesday Night
Apr 21
48°F
Mostly Clear
17 mph SE

Mostly clear, with a low around 48. Southeast wind around 17 mph, with gusts as high as 24 mph.

Wednesday
Apr 22
79°F
Mostly Sunny
15 to 21 mph SE

Mostly sunny, with a high near 79. Southeast wind 15 to 21 mph, with gusts as high as 29 mph.

Wednesday Night
Apr 22
52°F
Chance Light Rain
20 mph SE

A chance of rain after 7pm. Mostly cloudy, with a low around 52. Southeast wind around 20 mph, with gusts as high as 28 mph.

Thursday
Apr 23
67°F
Chance Light Rain
18 to 24 mph S

A chance of rain. Partly sunny, with a high near 67. South wind 18 to 24 mph, with gusts as high as 32 mph.

Thursday Night
Apr 23
39°F
Chance Light Rain
23 mph W

A chance of rain. Mostly cloudy, with a low around 39.

Detailed Forecast

Period Conditions Temp Wind
Today
Apr 17
Mostly Cloudy
36°F
22 to 29 mph
NW
Tonight
Apr 17
Mostly Clear
20°F
15 to 28 mph
NW
Saturday
Apr 18
Mostly Sunny
44°F
16 to 22 mph
NW
Saturday Night
Apr 18
Partly Cloudy
25°F
7 to 21 mph
W
Sunday
Apr 19
Sunny
51°F
7 to 10 mph
NE
Sunday Night
Apr 19
Mostly Clear
34°F
12 to 18 mph
SE
Monday
Apr 20
Mostly Sunny
71°F
15 to 22 mph
SW
Monday Night
Apr 20
Mostly Clear
38°F
9 to 14 mph
N
Tuesday
Apr 21
Sunny
71°F
8 to 15 mph
E
Tuesday Night
Apr 21
Mostly Clear
48°F
17 mph
SE
Wednesday
Apr 22
Mostly Sunny
79°F
15 to 21 mph
SE
Wednesday Night
Apr 22
Chance Light Rain
52°F
20 mph
SE
Thursday
Apr 23
Chance Light Rain
67°F
18 to 24 mph
S
Thursday Night
Apr 23
Chance Light Rain
39°F
23 mph
W

Nearby Forecasts

Explore weather pages for nearby cities and major places around Sioux County.

Nearby forecast pages are not available for this location yet.

Coverage

Tracked cities
0
Coverage
0%

Forecast coverage currently spans 0 of 0 mapped cities in Sioux County.

Old Sioux County Courthouse 'Fort Yates ND'
Old Sioux County Courthouse 'Fort Yates ND' image
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.