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.
This Afternoon
56°F
Rain Showers
Rain showers. Cloudy. High near 56, with temperatures falling to around 48 in the afternoon. North northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Storm Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 56°F | Rain Showers | 15 mph NNW | 90% |
| Tonight | 40°F | Rain Showers | 10 to 15 mph NW | 76% |
| Wednesday | 48°F | Rain Showers Likely | 15 mph WNW | 65% |
| Wednesday Night | 39°F | Rain Showers Likely | 10 mph WNW | 74% |
| Thursday | 48°F | Chance Rain Showers | 10 mph NNW | 54% |
| Thursday Night | 35°F | Mostly Cloudy | 5 to 10 mph N | 3% |
| Friday | 49°F | Partly Sunny | 0 to 5 mph NNE | 0% |
| Friday Night | 32°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 54°F | Mostly Sunny | 0 to 5 mph WSW | 2% |
| Saturday Night | 35°F | Mostly Clear | 5 mph W | 4% |
| Sunday | 59°F | Sunny | 5 mph WSW | 5% |
| Sunday Night | 38°F | Mostly Clear | 5 mph SSW | 1% |
| Monday | 62°F | Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 39°F | Mostly Clear | 5 mph NW | 0% |
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 Nov 3, 2026.