Storm Lake, IA Weather & Growing Conditions
Tonight
57°F
Patchy Fog
Patchy fog and isolated rain showers. Cloudy, with a low around 57. North northeast wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 57°F | Patchy Fog | 10 mph NNE | 10% |
| Sunday | 65°F | Patchy Fog then Chance Rain Showers | 10 to 15 mph NE | 32% |
| Sunday Night | 51°F | Rain Showers Likely | 10 mph ENE | 68% |
| Monday | 57°F | Rain Showers | 10 mph NE | 81% |
| Monday Night | 47°F | Rain Showers Likely then Mostly Cloudy | 5 to 10 mph NE | 56% |
| Tuesday | 61°F | Partly Sunny | 5 mph ENE | 5% |
| Tuesday Night | 44°F | Partly Cloudy | 0 to 5 mph E | 1% |
| Wednesday | 65°F | Mostly Sunny | 0 to 5 mph ESE | 2% |
| Wednesday Night | 50°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 0 to 5 mph SE | 23% |
| Thursday | 67°F | Chance Showers And Thunderstorms | 5 mph SSE | 40% |
| Thursday Night | 55°F | Slight Chance Rain Showers | 5 mph SE | 20% |
| Friday | 71°F | Slight Chance Rain Showers | 0 to 5 mph ESE | 17% |
| Friday Night | 57°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph SE | 24% |
| Saturday | 70°F | Chance Rain Showers | 5 to 10 mph SSE | 34% |
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 Sep 20, 2026.