Dallas, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dallas, a town in Tripp County, South Dakota.
Today
69°F
Slight Chance Rain Showers
A slight chance of rain showers before 1pm. Mostly cloudy, with a high near 69. North northwest wind 5 to 10 mph. Chance of precipitation is 20%.
7-day forecast for Dallas
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 69°F | Slight Chance Rain Showers | 5 to 10 mph NNW | 19% |
| Tonight | 53°F | Partly Cloudy | 5 mph WNW | 4% |
| Wednesday | 77°F | Mostly Sunny | 5 to 10 mph SSW | 1% |
| Wednesday Night | 58°F | Mostly Clear | 10 to 15 mph S | 1% |
| Thursday | 86°F | Sunny | 15 to 20 mph S | 6% |
| Thursday Night | 64°F | Mostly Clear | 15 mph S | 6% |
| Friday | 91°F | Sunny | 10 to 15 mph S | 3% |
| Friday Night | 66°F | Mostly Clear | 10 to 15 mph SSE | 6% |
| Saturday | 94°F | Sunny | 15 to 25 mph SSW | 3% |
| Saturday Night | 66°F | Mostly Clear | 10 to 20 mph SSE | 6% |
| Sunday | 91°F | Mostly Sunny | 10 to 15 mph SE | 3% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms | 15 mph E | 24% |
| Monday | 89°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 15 mph ENE | 23% |
| Monday Night | 65°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ENE | 20% |
Forecast source: National Weather Service (api.weather.gov) for Dallas (43.238, -99.518). Updated through the day.
Growing snapshot for Dallas
Last spring frost
May 6
First fall frost
Oct 3
Growing season
149 days
Hardiness zone
5a
More local growing data for Dallas: nearby ZIP 57529 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Gregory, Sd (6.5 mi from Dallas). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.