Humboldt, SD Weather & Growing Conditions
Tonight
38°F
Chance Rain Showers
A chance of rain showers. Cloudy. Low around 38, with temperatures rising to around 41 overnight. Northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 38°F | Chance Rain Showers | 15 to 20 mph NW | 43% |
| Wednesday | 44°F | Rain Showers Likely | 20 mph NW | 70% |
| Wednesday Night | 36°F | Chance Rain Showers then Cloudy | 15 to 20 mph NW | 40% |
| Thursday | 45°F | Partly Sunny | 10 to 15 mph NNW | 0% |
| Thursday Night | 30°F | Mostly Cloudy | 5 to 10 mph NNE | 0% |
| Friday | 44°F | Mostly Sunny | 5 mph ESE | 0% |
| Friday Night | 29°F | Partly Cloudy | 5 mph SSE | 0% |
| Saturday | 52°F | Mostly Sunny | 5 to 10 mph SW | 0% |
| Saturday Night | 35°F | Mostly Clear | 5 to 10 mph WNW | 4% |
| Sunday | 57°F | Sunny | 5 to 10 mph WSW | 2% |
| Sunday Night | 38°F | Mostly Clear | 10 mph S | 0% |
| Monday | 59°F | Sunny | 10 to 15 mph W | 0% |
| Monday Night | 37°F | Mostly Clear | 5 to 10 mph NW | 0% |
| Tuesday | 56°F | Mostly Sunny | 5 to 10 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Humboldt, SD
Last spring frost
May 7
First fall frost
Sep 29
Growing season
144 days
Hardiness zone
4b
Explore more for Humboldt, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Salem 5Ne, Sd (13.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.