Pierson, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pierson, a city in Woodbury County, Iowa.
Overnight
66°F
Patchy Fog
Patchy fog before 2am, then patchy fog and a slight chance of showers and thunderstorms between 2am and 5am, then patchy fog and a chance of showers and thunderstorms. Mostly cloudy. Low around 66, with temperatures rising to around 70 overnight. North northwest wind around 5 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 | 66°F | Patchy Fog | 5 mph NNW | 33% |
| Saturday | 71°F | Patchy Fog then Mostly Cloudy | 5 to 10 mph NNW | 37% |
| Saturday Night | 58°F | Cloudy | 10 mph NNE | 12% |
| Sunday | 65°F | Cloudy then Chance Rain Showers | 10 to 15 mph NE | 32% |
| Sunday Night | 53°F | Rain Showers Likely | 5 to 10 mph ENE | 60% |
| Monday | 59°F | Rain Showers Likely | 10 mph ENE | 60% |
| Monday Night | 48°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph ENE | 42% |
| Tuesday | 62°F | Partly Sunny | 5 mph E | 8% |
| Tuesday Night | 45°F | Partly Cloudy | 5 mph ESE | 2% |
| Wednesday | 65°F | Mostly Sunny | 5 mph SE | 3% |
| Wednesday Night | 50°F | Partly Cloudy then Chance Rain Showers | 5 mph SE | 30% |
| Thursday | 67°F | Chance Rain Showers | 5 mph SE | 30% |
| Thursday Night | 54°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph SE | 15% |
| Friday | 69°F | Slight Chance Rain Showers | 5 to 10 mph SE | 15% |
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 Sep 19, 2026.