Harman US

Bath, SD Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Bath, a community in Brown County, South Dakota.

Today
67°F
Patchy Fog then Cloudy
Patchy fog before 11am. Cloudy, with a high near 67. Northeast wind around 12 mph, with gusts as high as 22 mph.

7-day forecast for Bath

WhenTempForecastWindPrecip
Today 67°F Patchy Fog then Cloudy 12 mph NE 2%
Tonight 52°F Mostly Cloudy 7 to 12 mph NE 6%
Sunday 67°F Mostly Cloudy 13 mph NE 8%
Sunday Night 49°F Mostly Cloudy 5 to 10 mph ENE 12%
Monday 68°F Partly Sunny 8 mph E 12%
Monday Night 44°F Partly Cloudy 7 mph SE 7%
Tuesday 69°F Mostly Sunny 5 to 14 mph SSE 2%
Tuesday Night 48°F Partly Cloudy 12 mph SSE 4%
Wednesday 71°F Partly Sunny then Slight Chance Rain Showers 13 to 17 mph SSE 15%
Wednesday Night 52°F Chance Rain Showers 10 to 14 mph SSE 29%
Thursday 73°F Chance Rain Showers then Partly Sunny 12 mph SSE 29%
Thursday Night 53°F Mostly Cloudy then Slight Chance Rain Showers 9 mph SSE 20%
Friday 75°F Slight Chance Rain Showers then Partly Sunny 9 to 15 mph SSE 20%
Friday Night 55°F Mostly Cloudy then Slight Chance Rain Showers 14 mph SSE 18%

Forecast source: National Weather Service (api.weather.gov) for Bath (45.469, -98.324). Updated through the day.

Growing snapshot for Bath

Last spring frost
May 9
First fall frost
Sep 26
Growing season
139 days
Hardiness zone
4a

More local growing data for Bath: nearby ZIP 57427 weather · frost dates · planting calendar · South Dakota frost dates

Nearby towns & communities

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Climate data from the nearest NOAA station, Aberdeen, Sd (4.9 mi from Bath). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.