Johnson Siding, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Johnson Siding, a community in Pennington County, South Dakota.
Today
72°F
Areas Of Smoke then Mostly Sunny
Areas of smoke before noon. Mostly sunny. High near 72, with temperatures falling to around 70 in the afternoon. East wind 0 to 5 mph, with gusts as high as 18 mph.
7-day forecast for Johnson Siding
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Areas Of Smoke then Mostly Sunny | 0 to 5 mph E | 6% |
| Tonight | 46°F | Partly Cloudy then Slight Chance Rain Showers | 3 mph SW | 19% |
| Wednesday | 80°F | Sunny | 1 to 5 mph S | 8% |
| Wednesday Night | 51°F | Mostly Clear | 3 mph SW | 2% |
| Thursday | 89°F | Sunny | 1 to 5 mph N | 4% |
| Thursday Night | 56°F | Mostly Clear | 3 mph W | 1% |
| Friday | 92°F | Sunny | 2 to 7 mph NE | 2% |
| Friday Night | 60°F | Mostly Clear | 6 mph SW | 1% |
| Saturday | 94°F | Sunny | 3 to 7 mph N | 3% |
| Saturday Night | 58°F | Mostly Clear | 2 to 6 mph NW | 3% |
| Sunday | 92°F | Mostly Sunny | 2 to 9 mph SE | 8% |
| Sunday Night | 59°F | Slight Chance Showers And Thunderstorms | 2 to 8 mph SW | 16% |
| Monday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 8 mph NE | 18% |
| Monday Night | 57°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 1 to 7 mph NE | 34% |
Forecast source: National Weather Service (api.weather.gov) for Johnson Siding (44.085, -103.438). Updated through the day.
Growing snapshot for Johnson Siding
Last spring frost
May 20
First fall frost
Sep 25
Growing season
126 days
Hardiness zone
5a
More local growing data for Johnson Siding: nearby ZIP 57702 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Caputa
Colonial Pine Hills
Cottonwood
Green Valley
Hill City
Keystone
New Underwood
Quinn
Rapid City
Wall
Climate data from the nearest NOAA station, Johnson Siding, Sd (3.7 mi from Johnson Siding). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.