Pierpont, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pierpont, a town in Day County, South Dakota.
Tonight
37°F
Light Rain
A slight chance of rain before 9pm, then patchy fog and a slight chance of rain between 9pm and 10pm, then rain and patchy fog. Cloudy. Low around 37, with temperatures rising to around 40 overnight. North northwest wind 14 to 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Pierpont
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 37°F | Light Rain | 14 to 20 mph NNW | 75% |
| Wednesday | 43°F | Light Rain | 17 mph NNW | 81% |
| Wednesday Night | 31°F | Slight Chance Light Rain then Patchy Fog | 12 to 15 mph N | 15% |
| Thursday | 40°F | Patchy Fog then Partly Sunny | 8 to 14 mph N | 3% |
| Thursday Night | 27°F | Mostly Cloudy | 1 to 7 mph E | 0% |
| Friday | 43°F | Partly Sunny | 5 mph S | 0% |
| Friday Night | 30°F | Partly Cloudy | 3 to 7 mph SSW | 0% |
| Saturday | 54°F | Mostly Sunny | 7 to 12 mph SW | 3% |
| Saturday Night | 32°F | Partly Cloudy | 7 mph W | 2% |
| Sunday | 54°F | Sunny | 5 to 8 mph SW | 2% |
| Sunday Night | 38°F | Partly Cloudy | 10 mph SSW | 0% |
| Monday | 56°F | Mostly Sunny | 8 to 14 mph W | 0% |
| Monday Night | 35°F | Mostly Clear | 7 mph WSW | 0% |
| Tuesday | 53°F | Mostly Sunny | 7 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Pierpont (45.495, -97.832). Updated through the day.
Growing snapshot for Pierpont
Last spring frost
May 6
First fall frost
Oct 4
Growing season
150 days
Hardiness zone
4b
More local growing data for Pierpont: nearby ZIP 57468 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Andover #2, Sd (9.7 mi from Pierpont). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.