Storm Lake, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Storm Lake, a city in Buena Vista County, Iowa.
Today
72°F
Patchy Fog then Cloudy
Patchy fog and a slight chance of showers and thunderstorms before noon. Cloudy. High near 72, with temperatures falling to around 68 in the afternoon. North northwest wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Storm Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Patchy Fog then Cloudy | 5 to 10 mph NNW | 22% |
| Tonight | 57°F | Slight Chance Rain Showers then Cloudy | 10 mph NNE | 19% |
| Sunday | 64°F | Cloudy then Slight Chance Rain Showers | 10 to 15 mph NE | 22% |
| Sunday Night | 52°F | Rain Showers Likely | 10 mph ENE | 61% |
| Monday | 59°F | Rain Showers Likely | 10 mph ENE | 61% |
| Monday Night | 47°F | Chance Rain Showers then Mostly Cloudy | 5 mph ENE | 43% |
| Tuesday | 60°F | Mostly Sunny | 5 mph E | 10% |
| Tuesday Night | 44°F | Partly Cloudy | 0 to 5 mph ESE | 1% |
| Wednesday | 64°F | Mostly Sunny | 0 to 5 mph SE | 3% |
| Wednesday Night | 49°F | Partly Cloudy then Slight Chance Rain Showers | 0 to 5 mph SE | 19% |
| Thursday | 66°F | Slight Chance Rain Showers | 0 to 5 mph SE | 19% |
| Thursday Night | 53°F | Mostly Cloudy | 5 mph SE | 14% |
| Friday | 68°F | Partly Sunny | 5 mph SE | 14% |
| Friday Night | 53°F | Mostly Cloudy | 5 mph SE | 14% |
Forecast source: National Weather Service (api.weather.gov) for Storm Lake (42.643, -95.196). Updated through the day.
Growing snapshot for Storm Lake
Last spring frost
Apr 25
First fall frost
Oct 13
Growing season
170 days
Hardiness zone
5a
More local growing data for Storm Lake: nearby ZIP 50588 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Storm Lake, Ia (1.7 mi from Storm Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.