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.
Tonight
55°F
Areas Of Fog
Areas of fog. Cloudy, with a low around 55. Northeast wind around 7 mph.
7-day forecast for Timber Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Areas Of Fog | 7 mph NE | 6% |
| Saturday | 66°F | Areas Of Fog then Slight Chance Rain Showers | 8 to 13 mph ENE | 16% |
| Saturday Night | 52°F | Rain Showers Likely | 10 to 14 mph ENE | 57% |
| Sunday | 61°F | Rain Showers Likely | 16 mph E | 73% |
| Sunday Night | 50°F | Rain Showers | 9 to 13 mph E | 77% |
| Monday | 63°F | Chance Rain Showers | 9 to 13 mph E | 25% |
| Monday Night | 48°F | Mostly Cloudy | 13 mph SE | 8% |
| Tuesday | 68°F | Partly Sunny | 14 to 23 mph SE | 5% |
| Tuesday Night | 52°F | Mostly Cloudy | 21 mph SE | 12% |
| Wednesday | 74°F | Partly Sunny then Slight Chance Rain Showers | 18 to 22 mph SE | 17% |
| Wednesday Night | 54°F | Chance Rain Showers then Partly Cloudy | 8 to 17 mph SE | 27% |
| Thursday | 75°F | Mostly Sunny | 8 to 12 mph SE | 4% |
| Thursday Night | 55°F | Partly Cloudy | 10 mph ESE | 8% |
| Friday | 75°F | Partly Sunny | 10 to 20 mph SE | 7% |
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 Sep 19, 2026.