Britton, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Britton, a city in Marshall County, South Dakota.
This Afternoon
63°F
Areas Of Drizzle
Areas of drizzle and patchy fog. Cloudy, with a high near 63. East wind around 17 mph, with gusts as high as 31 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Britton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Areas Of Drizzle | 17 mph E | 42% |
| Tonight | 53°F | Areas Of Drizzle | 7 to 16 mph ENE | 31% |
| Saturday | 66°F | Areas Of Fog | 8 to 13 mph NE | 2% |
| Saturday Night | 51°F | Mostly Cloudy | 10 mph NE | 5% |
| Sunday | 66°F | Cloudy | 13 mph NE | 4% |
| Sunday Night | 48°F | Cloudy then Slight Chance Rain Showers | 6 to 9 mph E | 20% |
| Monday | 64°F | Slight Chance Rain Showers then Mostly Cloudy | 6 to 9 mph E | 20% |
| Monday Night | 45°F | Mostly Cloudy | 7 mph ESE | 2% |
| Tuesday | 67°F | Partly Sunny | 6 to 13 mph SE | 1% |
| Tuesday Night | 49°F | Partly Cloudy | 12 mph SSE | 9% |
| Wednesday | 69°F | Partly Sunny | 10 to 15 mph SSE | 12% |
| Wednesday Night | 52°F | Slight Chance Rain Showers | 10 mph SSE | 24% |
| Thursday | 72°F | Slight Chance Rain Showers then Partly Sunny | 9 mph S | 23% |
| Thursday Night | 53°F | Partly Cloudy | 7 mph SSE | 11% |
Forecast source: National Weather Service (api.weather.gov) for Britton (45.792, -97.753). Updated through the day.
Growing snapshot for Britton
Last spring frost
May 13
First fall frost
Sep 26
Growing season
135 days
Hardiness zone
4a
More local growing data for Britton: nearby ZIP 57430 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Britton, Sd (3.5 mi from Britton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.