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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

WhenTempForecastWindPrecip
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

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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.