Storm Lake, IA Weather & Growing Conditions
Today
48°F
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a high near 48. West northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 48°F | Chance Rain Showers | 15 to 20 mph WNW | 34% |
| Tonight | 39°F | Chance Rain Showers | 10 mph WNW | 38% |
| Thursday | 48°F | Mostly Cloudy | 10 mph NNW | 12% |
| Thursday Night | 34°F | Mostly Cloudy | 5 to 10 mph N | 1% |
| Friday | 47°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Friday Night | 29°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 51°F | Mostly Sunny | 0 to 5 mph SW | 1% |
| Saturday Night | 34°F | Mostly Clear | 0 to 5 mph W | 0% |
| Sunday | 57°F | Sunny | 5 mph W | 0% |
| Sunday Night | 37°F | Mostly Clear | 5 mph SW | 0% |
| Monday | 62°F | Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 39°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Tuesday | 60°F | Mostly Sunny | 0 to 5 mph WNW | 0% |
| Tuesday Night | 41°F | Partly Cloudy | 0 mph | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Storm Lake, IA
Last spring frost
Apr 25
First fall frost
Oct 13
Growing season
170 days
Hardiness zone
5a
Explore more for Storm Lake, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Storm Lake, Ia (1.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.