Green Valley, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Green Valley, a community in Pennington County, South Dakota.
This Afternoon
57°F
Sunny
Sunny. High near 57, with temperatures falling to around 52 in the afternoon. North wind 9 to 20 mph, with gusts as high as 36 mph.
7-day forecast for Green Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 57°F | Sunny | 9 to 20 mph N | 0% |
| Tonight | 32°F | Mostly Clear | 5 to 8 mph NW | 0% |
| Wednesday | 56°F | Partly Sunny | 6 to 15 mph N | 1% |
| Wednesday Night | 33°F | Mostly Cloudy | 3 to 12 mph NW | 1% |
| Thursday | 58°F | Sunny | 2 to 6 mph E | 0% |
| Thursday Night | 33°F | Partly Cloudy | 5 mph SW | 0% |
| Friday | 58°F | Mostly Sunny | 1 to 9 mph N | 1% |
| Friday Night | 35°F | Mostly Clear | 2 to 6 mph W | 3% |
| Saturday | 62°F | Sunny | 5 to 10 mph NW | 3% |
| Saturday Night | 35°F | Mostly Clear | 7 mph W | 1% |
| Sunday | 70°F | Sunny | 7 mph SW | 0% |
| Sunday Night | 43°F | Mostly Clear | 6 to 10 mph W | 0% |
| Monday | 64°F | Sunny | 5 to 9 mph N | 0% |
| Monday Night | 37°F | Partly Cloudy | 6 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Green Valley (44.039, -103.112). Updated through the day.
Growing snapshot for Green Valley
Last spring frost
May 12
First fall frost
Oct 1
Growing season
139 days
Hardiness zone
5a
More local growing data for Green Valley: nearby ZIP 57703 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Caputa
Colonial Pine Hills
Cottonwood
Hill City
Johnson Siding
Keystone
New Underwood
Quinn
Rapid City
Wall
Climate data from the nearest NOAA station, Rapid City Rgnl Ap, Sd (2.7 mi from Green Valley). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.