Smithland, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Smithland, a city in Woodbury County, Iowa.
Overnight
67°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Cloudy. Low around 67, with temperatures rising to around 69 overnight. Northwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Smithland
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 67°F | Showers And Thunderstorms Likely | 5 mph NW | 57% |
| Saturday | 73°F | Chance Showers And Thunderstorms then Cloudy | 5 to 9 mph NNW | 53% |
| Saturday Night | 58°F | Cloudy | 8 mph NNE | 14% |
| Sunday | 64°F | Cloudy then Chance Rain Showers | 10 mph NE | 29% |
| Sunday Night | 54°F | Chance Rain Showers | 6 to 9 mph NE | 53% |
| Monday | 59°F | Rain Showers Likely | 8 mph ENE | 60% |
| Monday Night | 49°F | Chance Rain Showers then Mostly Cloudy | 2 to 7 mph ENE | 43% |
| Tuesday | 61°F | Partly Sunny | 6 mph E | 8% |
| Tuesday Night | 45°F | Partly Cloudy | 5 mph ESE | 1% |
| Wednesday | 65°F | Mostly Sunny | 2 to 6 mph SE | 3% |
| Wednesday Night | 51°F | Partly Cloudy then Chance Rain Showers | 5 mph SE | 30% |
| Thursday | 66°F | Chance Rain Showers | 6 mph SSE | 30% |
| Thursday Night | 54°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph SE | 15% |
| Friday | 69°F | Slight Chance Rain Showers then Mostly Cloudy | 2 to 7 mph SE | 15% |
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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Sloan
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 Sep 19, 2026.