Johnson Siding, SD Weather & Growing Conditions
Today
70°F
Areas Of Smoke
Areas of smoke. Mostly sunny. High near 70, with temperatures falling to around 68 in the afternoon. East wind 1 to 5 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Areas Of Smoke | 1 to 5 mph E | 6% |
| Tonight | 49°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph SW | 18% |
| Wednesday | 79°F | Sunny | 5 mph S | 8% |
| Wednesday Night | 54°F | Mostly Clear | 5 mph SW | 2% |
| Thursday | 88°F | Sunny | 2 to 6 mph N | 4% |
| Thursday Night | 59°F | Mostly Clear | 2 to 6 mph W | 1% |
| Friday | 92°F | Sunny | 3 to 8 mph E | 2% |
| Friday Night | 64°F | Mostly Clear | 7 mph SW | 1% |
| Saturday | 94°F | Sunny | 5 to 8 mph N | 2% |
| Saturday Night | 61°F | Mostly Clear | 2 to 7 mph NW | 3% |
| Sunday | 92°F | Mostly Sunny | 2 to 10 mph SE | 7% |
| Sunday Night | 62°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 to 9 mph NW | 16% |
| Monday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 9 mph N | 17% |
| Monday Night | 60°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 1 to 8 mph N | 33% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Johnson Siding, SD
Last spring frost
May 20
First fall frost
Sep 25
Growing season
126 days
Hardiness zone
5a
Explore more for Johnson Siding, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Johnson Siding, Sd (3.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.