Sully County, SD Weather Forecast

County weather hub

31°
F

Rain Showers Likely

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

Friday, April 17, 2026
Wind: 30 mph NNW
Overnight

Rain showers likely after 3am. Mostly cloudy. Low around 31, with temperatures rising to around 36 overnight. North northwest wind around 30 mph, with gusts as high as 40 mph. Chance of precipitation is 60%.

County weather hub

County Weather Overview

This county weather page brings together forecast coverage for Sully 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 Sully County.

Page Snapshot

Page focus
county weather
Forecast window
Apr 17 to Apr 23, 2026
Latest sync
Apr 17, 2026 3:42 AM CDT
Forecast office
ABR
Source
NOAA / NWS
Next High
46°F
Friday
Next Low
31°F
Overnight
Rain Outlook
4
Periods mentioning precipitation
Windiest
30 mph
Overnight

Daily Outlook

Today
Apr 17
Chance Rain And Snow Showers then Cloudy
46 °F
/ 31°F
Wind 29 mph
Sat
Apr 18
Sunny
50 °F
/ 28°F
Wind 10 to 22 mph
Sun
Apr 19
Mostly Sunny
59 °F
/ 35°F
Wind 6 to 9 mph
Mon
Apr 20
Sunny
76 °F
/ 41°F
Wind 14 to 18 mph
Tue
Apr 21
Sunny
77 °F
/ 50°F
Wind 8 to 12 mph
Wed
Apr 22
Mostly Sunny
85 °F
/ 53°F
Wind 14 to 20 mph
Thu
Apr 23
Chance Rain Showers
74 °F
Wind 16 to 23 mph

This Week in Sully County

Wednesday looks like the warmest upcoming period in Sully County at 85 degrees F.

Friday Night is the coolest period ahead with temperatures near 22 degrees F.

The strongest winds are forecast for Overnight at about 30 mph NNW.

Precipitation is mentioned in 4 upcoming forecast periods.

Forecast Details

Last updated
Apr 17, 2026 3:42 AM CDT
Coverage
7 days
Time zone
America/Chicago
Forecast office
ABR
Radar station
KABR

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

Open NOAA source

Extended Forecast

Friday
Apr 17
46°F
Chance Rain And Snow Showers then Cloudy
29 mph NW

A chance of rain and snow showers before 8am. Cloudy, with a high near 46. Northwest wind around 29 mph, with gusts as high as 39 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

Friday Night
Apr 17
22°F
Partly Cloudy
10 to 26 mph NW

Partly cloudy, with a low around 22. Northwest wind 10 to 26 mph, with gusts as high as 37 mph.

Saturday
Apr 18
50°F
Sunny
10 to 22 mph NW

Sunny, with a high near 50. Northwest wind 10 to 22 mph, with gusts as high as 32 mph.

Saturday Night
Apr 18
28°F
Partly Cloudy
6 to 21 mph W

Partly cloudy, with a low around 28. West wind 6 to 21 mph, with gusts as high as 30 mph.

Sunday
Apr 19
59°F
Mostly Sunny
6 to 9 mph ENE

Mostly sunny, with a high near 59. East northeast wind 6 to 9 mph.

Sunday Night
Apr 19
35°F
Mostly Clear
10 to 14 mph ESE

Mostly clear, with a low around 35. East southeast wind 10 to 14 mph, with gusts as high as 23 mph.

Monday
Apr 20
76°F
Sunny
14 to 18 mph S

Sunny, with a high near 76. South wind 14 to 18 mph, with gusts as high as 26 mph.

Monday Night
Apr 20
41°F
Partly Cloudy
8 to 12 mph N

Partly cloudy, with a low around 41. North wind 8 to 12 mph.

Tuesday
Apr 21
77°F
Sunny
8 to 12 mph E

Sunny, with a high near 77.

Tuesday Night
Apr 21
50°F
Mostly Clear
13 to 16 mph SE

Mostly clear, with a low around 50.

Wednesday
Apr 22
85°F
Mostly Sunny
14 to 20 mph SE

Mostly sunny, with a high near 85.

Wednesday Night
Apr 22
53°F
Chance Rain Showers
16 to 20 mph SSE

A chance of rain showers after 7pm. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.

Thursday
Apr 23
74°F
Chance Rain Showers
16 to 23 mph SSW

A chance of rain showers. Partly sunny, with a high near 74. Chance of precipitation is 40%.

Detailed Forecast

Period Conditions Temp Wind
Overnight
Apr 17
Rain Showers Likely
31°F
30 mph
NNW
Friday
Apr 17
Chance Rain And Snow Showers then Cloudy
46°F
29 mph
NW
Friday Night
Apr 17
Partly Cloudy
22°F
10 to 26 mph
NW
Saturday
Apr 18
Sunny
50°F
10 to 22 mph
NW
Saturday Night
Apr 18
Partly Cloudy
28°F
6 to 21 mph
W
Sunday
Apr 19
Mostly Sunny
59°F
6 to 9 mph
ENE
Sunday Night
Apr 19
Mostly Clear
35°F
10 to 14 mph
ESE
Monday
Apr 20
Sunny
76°F
14 to 18 mph
S
Monday Night
Apr 20
Partly Cloudy
41°F
8 to 12 mph
N
Tuesday
Apr 21
Sunny
77°F
8 to 12 mph
E
Tuesday Night
Apr 21
Mostly Clear
50°F
13 to 16 mph
SE
Wednesday
Apr 22
Mostly Sunny
85°F
14 to 20 mph
SE
Wednesday Night
Apr 22
Chance Rain Showers
53°F
16 to 20 mph
SSE
Thursday
Apr 23
Chance Rain Showers
74°F
16 to 23 mph
SSW

Nearby Forecasts

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

SULLY COUNTY COURTHOUSE  ONIDA  SD
SULLY COUNTY COURTHOUSE ONIDA SD 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.