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
64°F
Areas Of Fog then Showers And Thunderstorms
Areas of fog and a slight chance of showers and thunderstorms before 11am, then patchy fog and a chance of showers and thunderstorms between 11am and noon, then showers and thunderstorms. Cloudy. High near 64, with temperatures falling to around 62 in the afternoon. Southeast wind 1 to 5 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
7-day forecast for Johnson Siding
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 64°F | Areas Of Fog then Showers And Thunderstorms | 1 to 5 mph SE | 80% |
| Tonight | 44°F | Showers And Thunderstorms | 5 mph E | 81% |
| Sunday | 57°F | Showers And Thunderstorms | 2 to 7 mph E | 89% |
| Sunday Night | 41°F | Showers And Thunderstorms | 0 to 3 mph E | 98% |
| Monday | 60°F | Rain Showers Likely | 0 to 6 mph E | 57% |
| Monday Night | 42°F | Chance Rain Showers then Mostly Cloudy | 2 to 6 mph SE | 30% |
| Tuesday | 70°F | Mostly Sunny | 3 to 10 mph S | 7% |
| Tuesday Night | 47°F | Partly Cloudy | 3 to 8 mph S | 10% |
| Wednesday | 76°F | Mostly Sunny then Chance Showers And Thunderstorms | 6 mph S | 37% |
| Wednesday Night | 47°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 mph SW | 26% |
| Thursday | 78°F | Mostly Sunny | 5 mph S | 12% |
| Thursday Night | 48°F | Mostly Clear | 3 mph S | 6% |
| Friday | 79°F | Mostly Sunny | 3 to 9 mph S | 6% |
| Friday Night | 50°F | Slight Chance Rain Showers | 8 mph S | 18% |
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 Sep 19, 2026.