Astoria, SD Weather & Growing Conditions
Tonight
38°F
Light Rain
Rain and areas of fog. Cloudy. Low around 38, with temperatures rising to around 41 overnight. North northwest wind around 22 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 38°F | Light Rain | 22 mph NNW | 94% |
| Wednesday | 42°F | Light Rain | 21 mph NNW | 95% |
| Wednesday Night | 34°F | Light Rain | 20 mph NNW | 79% |
| Thursday | 41°F | Patchy Fog then Partly Sunny | 13 to 18 mph N | 9% |
| Thursday Night | 30°F | Mostly Cloudy | 2 to 12 mph N | 0% |
| Friday | 43°F | Partly Sunny | 5 mph SE | 0% |
| Friday Night | 30°F | Partly Cloudy | 3 to 8 mph SSW | 0% |
| Saturday | 53°F | Mostly Sunny | 8 to 14 mph WSW | 3% |
| Saturday Night | 35°F | Partly Cloudy | 10 mph W | 4% |
| Sunday | 55°F | Sunny | 12 mph WSW | 3% |
| Sunday Night | 38°F | Partly Cloudy | 9 to 15 mph SW | 1% |
| Monday | 58°F | Mostly Sunny | 12 to 15 mph W | 0% |
| Monday Night | 37°F | Mostly Clear | 9 mph WNW | 0% |
| Tuesday | 54°F | Mostly Sunny | 9 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Astoria, SD
Last spring frost
May 6
First fall frost
Oct 3
Growing season
150 days
Hardiness zone
4b
Explore more for Astoria, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Astoria 4S, Sd (4.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.