Henry, SD Weather & Growing Conditions
Today
42°F
Light Rain
Rain and patchy fog. Cloudy, with a high near 42. Northwest wind 18 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 42°F | Light Rain | 18 to 22 mph NW | 91% |
| Tonight | 33°F | Patchy Fog | 13 to 17 mph NNW | 20% |
| Thursday | 41°F | Patchy Fog then Mostly Cloudy | 10 to 15 mph N | 0% |
| Thursday Night | 27°F | Mostly Cloudy | 1 to 9 mph ENE | 0% |
| Friday | 42°F | Mostly Sunny | 1 to 6 mph SSE | 0% |
| Friday Night | 28°F | Partly Cloudy | 6 mph S | 0% |
| Saturday | 51°F | Sunny | 6 to 13 mph SW | 1% |
| Saturday Night | 33°F | Mostly Clear | 6 to 10 mph W | 0% |
| Sunday | 53°F | Sunny | 6 to 10 mph WSW | 0% |
| Sunday Night | 37°F | Mostly Clear | 8 mph SSW | 0% |
| Monday | 57°F | Mostly Sunny | 8 to 13 mph W | 0% |
| Monday Night | 35°F | Mostly Clear | 3 to 8 mph WNW | 0% |
| Tuesday | 54°F | Mostly Sunny | 3 to 8 mph W | 1% |
| Tuesday Night | 37°F | Partly Cloudy | 6 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Henry, SD
Last spring frost
May 7
First fall frost
Sep 30
Growing season
145 days
Hardiness zone
4b
Explore more for Henry, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Watertown Rgnl Ap, Sd (14.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.