Pierson, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pierson, a city in Woodbury County, Iowa.
Today
73°F
Patchy Smoke
Patchy smoke and a chance of showers and thunderstorms before 10am, then patchy smoke and scattered showers and thunderstorms between 10am and 1pm, then patchy smoke and showers and thunderstorms between 1pm and 4pm, then scattered showers and thunderstorms between 4pm and 5pm, then patchy smoke and scattered showers and thunderstorms. Mostly cloudy. High near 73, with temperatures falling to around 70 in the afternoon. North wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Pierson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Patchy Smoke | 5 to 10 mph N | 82% |
| Tonight | 56°F | Patchy Smoke then Mostly Cloudy | 0 to 5 mph NNE | 49% |
| Wednesday | 74°F | Partly Sunny | 0 to 5 mph ENE | 6% |
| Wednesday Night | 53°F | Mostly Clear | 0 to 5 mph SE | 1% |
| Thursday | 81°F | Sunny | 0 to 10 mph S | 1% |
| Thursday Night | 61°F | Mostly Clear | 5 mph S | 1% |
| Friday | 86°F | Sunny | 5 to 10 mph S | 3% |
| Friday Night | 66°F | Mostly Clear | 5 to 10 mph S | 10% |
| Saturday | 90°F | Sunny | 5 to 15 mph SSE | 5% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph SSE | 20% |
| Sunday | 90°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 mph SSE | 18% |
| Sunday Night | 69°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 10 mph SE | 21% |
| Monday | 89°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 to 15 mph ESE | 21% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 10 to 15 mph E | 25% |
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 Aug 4, 2026.