Gretna, SD Weather Forecast
Local 7-day forecast
Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Gretna, SD in one place.
A chance of rain showers between 7am and 1pm. Partly sunny, with a high near 68. Southeast wind 14 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Local Weather Overview
This forecast page for Gretna, 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: Sep 14, 2026 6:32 PM CDT.
The active forecast window currently covers Sep 16 to Sep 20, 2026 for Gretna, SD.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 20, 2026
- Latest sync
- Sep 14, 2026 6:32 PM CDT
- Forecast office
- ABR
- Source
- NOAA / NWS
Daily Outlook
This Week in Gretna
Thursday looks like the warmest upcoming period in Gretna at 71 degrees F.
Sunday Night is the coolest period ahead with temperatures near 50 degrees F.
The strongest winds are forecast for Wednesday at about 14 to 20 mph SE.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 14, 2026 6:32 PM 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
Mostly cloudy, with a low around 51. East wind 7 to 14 mph.
A chance of rain showers after 1pm. Partly sunny, with a high near 71. East wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
A chance of rain showers before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 56. East southeast wind around 14 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 71. East wind around 14 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
A chance of rain showers. Mostly cloudy, with a high near 69. Chance of precipitation is 30%.
A chance of rain showers. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
A slight chance of rain showers. Partly sunny, with a high near 68. Chance of precipitation is 20%.
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 50. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Chance Rain Showers
|
68°F |
14 to 20 mph
SE
|
|
Wednesday Night
Sep 16
|
Mostly Cloudy
|
51°F |
7 to 14 mph
E
|
|
Thursday
Sep 17
|
Partly Sunny then Chance Rain Showers
|
71°F |
9 to 14 mph
E
|
|
Thursday Night
Sep 17
|
Chance Rain Showers
|
56°F |
14 mph
ESE
|
|
Friday
Sep 18
|
Chance Showers And Thunderstorms
|
71°F |
14 mph
E
|
|
Friday Night
Sep 18
|
Chance Showers And Thunderstorms
|
56°F |
13 mph
NE
|
|
Saturday
Sep 19
|
Chance Rain Showers
|
69°F |
14 mph
NNE
|
|
Saturday Night
Sep 19
|
Chance Rain Showers
|
53°F |
9 to 13 mph
ENE
|
|
Sunday
Sep 20
|
Slight Chance Rain Showers
|
68°F |
9 to 13 mph
N
|
|
Sunday Night
Sep 20
|
Slight Chance Rain Showers then Partly Cloudy
|
50°F |
12 mph
NE
|
Nearby Forecasts
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Nearby forecast pages are not available for this location yet.