McLaughlin, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for McLaughlin, a city in Corson County, South Dakota.
Today
77°F
Sunny
Sunny, with a high near 77. West northwest wind 10 to 14 mph, with gusts as high as 23 mph.
7-day forecast for McLaughlin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Sunny | 10 to 14 mph WNW | 0% |
| Tonight | 51°F | Partly Cloudy | 3 to 10 mph SW | 0% |
| Wednesday | 86°F | Sunny | 3 to 10 mph WSW | 0% |
| Wednesday Night | 56°F | Partly Cloudy | 5 to 10 mph S | 1% |
| Thursday | 92°F | Sunny | 7 to 10 mph W | 1% |
| Thursday Night | 59°F | Mostly Clear | 6 to 9 mph E | 0% |
| Friday | 92°F | Sunny | 7 to 13 mph NE | 1% |
| Friday Night | 60°F | Mostly Clear | 10 mph ESE | 0% |
| Saturday | 95°F | Sunny | 10 to 15 mph NE | 2% |
| Saturday Night | 59°F | Mostly Clear | 9 to 14 mph ENE | 4% |
| Sunday | 91°F | Mostly Sunny | 9 to 15 mph E | 10% |
| Sunday Night | 61°F | Chance Showers And Thunderstorms | 12 to 15 mph ENE | 32% |
| Monday | 88°F | Slight Chance Showers And Thunderstorms | 13 to 16 mph ENE | 17% |
| Monday Night | 60°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 10 to 16 mph ENE | 26% |
Forecast source: National Weather Service (api.weather.gov) for McLaughlin (45.813, -100.811). Updated through the day.
Growing snapshot for McLaughlin
Last spring frost
May 12
First fall frost
Sep 28
Growing season
137 days
Hardiness zone
4b
More local growing data for McLaughlin: nearby ZIP 57642 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Mc Laughlin, Sd (4.7 mi from McLaughlin). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.