Grant County, SD Weather Forecast
County weather hub
Chance Showers And Thunderstorms
Compare major city weather across Grant County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy. Low around 57, with temperatures rising to around 62 overnight. Southeast wind 17 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Grant County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 1 of 1 mapped cities in Grant County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 30 to Jun 6, 2026
- Latest sync
- May 30, 2026 9:47 PM CDT
- Forecast office
- ABR
- Source
- NOAA / NWS
Daily Outlook
This Week in Grant County
Wednesday looks like the warmest upcoming period in Grant County at 82 degrees F.
Monday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Tonight at about 17 to 22 mph SE.
Precipitation is mentioned in 12 upcoming forecast periods.
Forecast Details
- Last updated
- May 30, 2026 9:47 PM 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 sourceExtended Forecast
A chance of rain showers before 1pm, then a chance of showers and thunderstorms between 1pm and 3pm. Mostly cloudy, with a high near 75. East southeast wind 14 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms between 8pm and 11pm, then showers and thunderstorms likely between 11pm and midnight, then a chance of showers and thunderstorms between midnight and 1am, then showers and thunderstorms. Mostly cloudy. Low around 56, with temperatures rising to around 61 overnight. Southeast wind 6 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms likely. Mostly cloudy, with a high near 76. West southwest wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 54. Northwest wind 3 to 7 mph. Chance of precipitation is 40%.
Mostly sunny, with a high near 81. East wind 3 to 8 mph.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 57. South southeast wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7am, then showers and thunderstorms likely. Partly sunny, with a high near 82. South wind around 16 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 58. South southwest wind 13 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 79. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms. Partly sunny, with a high near 78. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 54. Chance of precipitation is 20%.
Mostly sunny, with a high near 80.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tonight
May 30
|
Chance Showers And Thunderstorms
|
57°F |
17 to 22 mph
SE
|
|
Sunday
May 31
|
Chance Rain Showers
|
75°F |
14 to 17 mph
ESE
|
|
Sunday Night
May 31
|
Chance Showers And Thunderstorms
|
56°F |
6 to 14 mph
SE
|
|
Monday
Jun 1
|
Showers And Thunderstorms Likely
|
76°F |
8 mph
WSW
|
|
Monday Night
Jun 1
|
Chance Showers And Thunderstorms then Partly Cloudy
|
54°F |
3 to 7 mph
NW
|
|
Tuesday
Jun 2
|
Mostly Sunny
|
81°F |
3 to 8 mph
E
|
|
Tuesday Night
Jun 2
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
57°F |
8 to 13 mph
SSE
|
|
Wednesday
Jun 3
|
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
82°F |
16 mph
S
|
|
Wednesday Night
Jun 3
|
Showers And Thunderstorms Likely
|
58°F |
13 to 17 mph
SSW
|
|
Thursday
Jun 4
|
Chance Showers And Thunderstorms
|
79°F |
13 mph
SW
|
|
Thursday Night
Jun 4
|
Chance Showers And Thunderstorms
|
55°F |
10 mph
SW
|
|
Friday
Jun 5
|
Slight Chance Showers And Thunderstorms
|
78°F |
10 mph
NNW
|
|
Friday Night
Jun 5
|
Slight Chance Showers And Thunderstorms
|
54°F |
5 to 10 mph
NW
|
|
Saturday
Jun 6
|
Mostly Sunny
|
80°F |
8 mph
NNW
|
Major City Forecasts
Live forecast snapshots for major cities across Grant County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Grant County.
Largest mapped city population in this region: 3,066.
