Pierson, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pierson, a city in Woodbury County, Iowa.
Overnight
39°F
Chance Rain Showers
A chance of rain showers. Cloudy. Low around 39, with temperatures rising to around 43 overnight. Northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Pierson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 39°F | Chance Rain Showers | 15 mph NW | 25% |
| Wednesday | 47°F | Chance Rain Showers | 15 mph WNW | 38% |
| Wednesday Night | 38°F | Chance Rain Showers | 10 to 15 mph NW | 38% |
| Thursday | 48°F | Mostly Cloudy | 10 to 15 mph NNW | 9% |
| Thursday Night | 32°F | Mostly Cloudy | 5 to 10 mph N | 0% |
| Friday | 47°F | Mostly Sunny | 0 to 5 mph NE | 0% |
| Friday Night | 29°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 52°F | Mostly Sunny | 0 to 5 mph SSW | 0% |
| Saturday Night | 33°F | Mostly Clear | 5 mph WSW | 0% |
| Sunday | 57°F | Sunny | 5 mph WSW | 0% |
| Sunday Night | 37°F | Clear | 5 mph SSW | 0% |
| Monday | 61°F | Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 38°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Tuesday | 60°F | Mostly Sunny | 0 to 5 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Pierson (42.544, -95.867). Updated through the day.
Growing snapshot for Pierson
Last spring frost
Apr 30
First fall frost
Oct 9
Growing season
162 days
Hardiness zone
5a
More local growing data for Pierson: nearby ZIP 51048 weather · frost dates · planting calendar · Iowa frost dates
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Climate data from the nearest NOAA station, Holstein, Ia (15.5 mi from Pierson). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.