Smithland, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Smithland, a city in Woodbury County, Iowa.
Today
72°F
Patchy Smoke
Patchy smoke and a chance of showers and thunderstorms before 1pm, then patchy smoke and showers and thunderstorms. Mostly cloudy. High near 72, with temperatures falling to around 70 in the afternoon. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Smithland
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Patchy Smoke | 10 mph N | 78% |
| Tonight | 57°F | Patchy Smoke | 1 to 7 mph NE | 66% |
| Wednesday | 73°F | Partly Sunny | 5 mph ENE | 12% |
| Wednesday Night | 53°F | Mostly Clear | 3 mph ESE | 2% |
| Thursday | 80°F | Sunny | 1 to 7 mph SSE | 1% |
| Thursday Night | 61°F | Mostly Clear | 6 mph SSE | 2% |
| Friday | 84°F | Sunny | 3 to 9 mph S | 3% |
| Friday Night | 66°F | Mostly Clear | 3 to 8 mph S | 9% |
| Saturday | 89°F | Sunny | 3 to 13 mph S | 3% |
| Saturday Night | 69°F | Slight Chance Showers And Thunderstorms | 7 to 13 mph SSE | 17% |
| Sunday | 89°F | Mostly Sunny | 9 mph SSE | 14% |
| Sunday Night | 70°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 mph SE | 21% |
| Monday | 89°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 8 to 14 mph SE | 21% |
| Monday Night | 70°F | Slight Chance Showers And Thunderstorms | 8 to 14 mph E | 17% |
Forecast source: National Weather Service (api.weather.gov) for Smithland (42.229, -95.932). Updated through the day.
Growing snapshot for Smithland
Last spring frost
May 3
First fall frost
Oct 1
Growing season
151 days
Hardiness zone
5a
More local growing data for Smithland: nearby ZIP 51056 weather · frost dates · planting calendar · Iowa frost dates
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Climate data from the nearest NOAA station, Mapleton No.2, Ia (10.4 mi from Smithland). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.