Grenville, SD Weather Forecast
Local 7-day forecast
Rain Showers Likely then Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Grenville, SD in one place.
Rain showers likely before 7am. Mostly sunny, with a high near 82. South southeast wind 7 to 12 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Grenville, SD is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Aug 27, 2026 9:00 AM CDT.
The active forecast window currently covers Aug 29 to Sep 2, 2026 for Grenville, SD.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 2, 2026
- Latest sync
- Aug 27, 2026 9:00 AM CDT
- Forecast office
- ABR
- Source
- NOAA / NWS
Daily Outlook
This Week in Grenville
Saturday looks like the warmest upcoming period in Grenville at 82 degrees F.
Monday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Saturday at about 7 to 12 mph SSE.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 27, 2026 9:00 AM CDT
- Coverage
- 5 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 showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. East wind around 9 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 81. South southeast wind around 9 mph. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 64. East wind around 8 mph. Chance of precipitation is 20%.
Mostly sunny, with a high near 80. Northwest wind around 10 mph.
Partly cloudy, with a low around 62.
Partly sunny, with a high near 79.
A chance of rain showers after 7pm. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
A chance of rain showers before 7am. Mostly sunny, with a high near 82. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms after 7pm. Mostly clear, with a low around 64. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Rain Showers Likely then Mostly Sunny
|
82°F |
7 to 12 mph
SSE
|
|
Saturday Night
Aug 29
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
66°F |
9 mph
E
|
|
Sunday
Aug 30
|
Chance Showers And Thunderstorms then Mostly Sunny
|
81°F |
9 mph
SSE
|
|
Sunday Night
Aug 30
|
Slight Chance Showers And Thunderstorms
|
64°F |
8 mph
E
|
|
Monday
Aug 31
|
Mostly Sunny
|
80°F |
10 mph
NW
|
|
Monday Night
Aug 31
|
Partly Cloudy
|
62°F |
9 mph
W
|
|
Tuesday
Sep 1
|
Partly Sunny
|
79°F |
9 mph
SSE
|
|
Tuesday Night
Sep 1
|
Chance Rain Showers
|
63°F |
8 mph
SE
|
|
Wednesday
Sep 2
|
Chance Rain Showers then Mostly Sunny
|
82°F |
10 mph
S
|
|
Wednesday Night
Sep 2
|
Slight Chance Showers And Thunderstorms
|
64°F |
9 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grenville.