Twin Lakes, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Twin Lakes, a community in Calhoun County, Iowa.
This Afternoon
70°F
Cloudy
Cloudy. High near 70, with temperatures falling to around 65 in the afternoon. North wind around 9 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Twin Lakes
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Cloudy | 9 mph N | 14% |
| Tonight | 58°F | Cloudy | 9 mph NNE | 14% |
| Sunday | 66°F | Chance Drizzle | 12 mph NE | 37% |
| Sunday Night | 53°F | Rain Showers Likely | 8 mph ENE | 63% |
| Monday | 58°F | Showers And Thunderstorms | 8 mph NE | 82% |
| Monday Night | 49°F | Rain Showers Likely then Mostly Cloudy | 6 mph NE | 63% |
| Tuesday | 62°F | Partly Sunny | 5 mph ENE | 7% |
| Tuesday Night | 45°F | Partly Cloudy | 2 mph E | 1% |
| Wednesday | 66°F | Mostly Sunny | 3 mph ESE | 1% |
| Wednesday Night | 50°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 2 mph SE | 16% |
| Thursday | 68°F | Chance Showers And Thunderstorms | 2 to 6 mph SSE | 36% |
| Thursday Night | 56°F | Slight Chance Rain Showers | 2 mph SE | 23% |
| Friday | 72°F | Slight Chance Rain Showers | 3 mph ESE | 17% |
| Friday Night | 57°F | Mostly Cloudy then Slight Chance Rain Showers | 2 mph SE | 20% |
Forecast source: National Weather Service (api.weather.gov) for Twin Lakes (42.481, -94.630). Updated through the day.
Growing snapshot for Twin Lakes
Last spring frost
Apr 26
First fall frost
Oct 10
Growing season
167 days
Hardiness zone
5a
More local growing data for Twin Lakes: nearby ZIP 50579 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Rockwell City, Ia (0.3 mi from Twin Lakes). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.