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
74°F
Patchy Smoke
Patchy smoke and isolated showers and thunderstorms before 9am, then patchy smoke and scattered showers and thunderstorms between 9am and 1pm, then patchy smoke and a chance of showers and thunderstorms between 1pm and 4pm, then scattered showers and thunderstorms. Mostly cloudy. High near 74, with temperatures falling to around 70 in the afternoon. North wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Storm Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Patchy Smoke | 5 to 10 mph N | 74% |
| Tonight | 56°F | Patchy Smoke | 0 to 5 mph NNE | 56% |
| Wednesday | 74°F | Partly Sunny | 0 to 5 mph ENE | 5% |
| Wednesday Night | 53°F | Mostly Clear | 0 to 5 mph SE | 1% |
| Thursday | 82°F | Sunny | 0 to 10 mph S | 1% |
| Thursday Night | 61°F | Mostly Clear | 5 to 10 mph SSE | 4% |
| Friday | 86°F | Sunny | 5 to 10 mph SSW | 5% |
| Friday Night | 65°F | Mostly Clear | 5 to 10 mph S | 14% |
| Saturday | 90°F | Sunny | 5 to 15 mph S | 10% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph SE | 22% |
| Sunday | 89°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 to 15 mph SSE | 22% |
| Sunday Night | 68°F | Partly Cloudy then Chance Showers And Thunderstorms | 10 to 15 mph SE | 27% |
| Monday | 89°F | Chance Showers And Thunderstorms then Mostly Sunny | 10 to 15 mph ESE | 27% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 10 to 15 mph ENE | 30% |
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 Aug 4, 2026.