Britton, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Britton, a city in Marshall County, South Dakota.
Today
73°F
Sunny
Sunny, with a high near 73. West northwest wind around 12 mph, with gusts as high as 21 mph.
7-day forecast for Britton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Sunny | 12 mph WNW | 0% |
| Tonight | 52°F | Mostly Clear | 5 to 9 mph SSW | 0% |
| Wednesday | 80°F | Sunny | 7 to 12 mph SW | 0% |
| Wednesday Night | 59°F | Partly Cloudy | 7 to 15 mph SSW | 1% |
| Thursday | 84°F | Sunny | 10 to 15 mph SSW | 3% |
| Thursday Night | 62°F | Mostly Clear | 10 mph S | 4% |
| Friday | 85°F | Sunny | 12 mph WSW | 5% |
| Friday Night | 60°F | Mostly Clear | 6 to 10 mph E | 5% |
| Saturday | 83°F | Mostly Sunny | 7 to 13 mph E | 8% |
| Saturday Night | 60°F | Slight Chance Showers And Thunderstorms | 12 mph ENE | 15% |
| Sunday | 83°F | Mostly Sunny | 8 to 12 mph NE | 12% |
| Sunday Night | 62°F | Partly Cloudy then Chance Showers And Thunderstorms | 10 mph ENE | 25% |
| Monday | 80°F | Chance Showers And Thunderstorms then Partly Sunny | 13 mph ENE | 25% |
| Monday Night | 60°F | Slight Chance Rain Showers | 9 to 13 mph NE | 16% |
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 Aug 4, 2026.