Timber Lake, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Timber Lake, a city in Dewey County, South Dakota.
Today
75°F
Patchy Smoke then Sunny
Patchy smoke before 8am. Sunny, with a high near 75. West northwest wind around 13 mph, with gusts as high as 22 mph.
7-day forecast for Timber Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Patchy Smoke then Sunny | 13 mph WNW | 0% |
| Tonight | 53°F | Mostly Clear | 5 to 9 mph SW | 0% |
| Wednesday | 84°F | Mostly Sunny | 5 to 12 mph WSW | 0% |
| Wednesday Night | 58°F | Partly Cloudy | 6 to 9 mph SSW | 1% |
| Thursday | 91°F | Sunny | 7 to 12 mph W | 1% |
| Thursday Night | 61°F | Mostly Clear | 7 to 10 mph E | 0% |
| Friday | 92°F | Sunny | 8 to 13 mph N | 1% |
| Friday Night | 62°F | Mostly Clear | 13 mph ESE | 1% |
| Saturday | 95°F | Mostly Sunny | 12 to 16 mph NE | 1% |
| Saturday Night | 61°F | Mostly Clear | 10 to 15 mph ENE | 2% |
| Sunday | 91°F | Mostly Sunny | 10 to 18 mph E | 8% |
| Sunday Night | 62°F | Chance Showers And Thunderstorms | 13 to 17 mph E | 31% |
| Monday | 88°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 14 to 18 mph ENE | 16% |
| Monday Night | 61°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 13 to 18 mph ENE | 32% |
Forecast source: National Weather Service (api.weather.gov) for Timber Lake (45.429, -101.071). Updated through the day.
Growing snapshot for Timber Lake
Last spring frost
May 10
First fall frost
Sep 30
Growing season
141 days
Hardiness zone
4b
More local growing data for Timber Lake: nearby ZIP 57656 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Timber Lake, Sd (1.5 mi from Timber Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.