Twin Lakes, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Twin Lakes, a community in Calhoun County, Iowa.
Today
76°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy. High near 76, with temperatures falling to around 73 in the afternoon. North wind 6 to 9 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Twin Lakes
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Showers And Thunderstorms Likely | 6 to 9 mph N | 71% |
| Tonight | 58°F | Showers And Thunderstorms Likely | 2 to 7 mph N | 55% |
| Wednesday | 75°F | Partly Sunny | 1 to 5 mph NE | 8% |
| Wednesday Night | 53°F | Mostly Clear | 1 mph SE | 2% |
| Thursday | 81°F | Sunny | 0 to 5 mph S | 1% |
| Thursday Night | 60°F | Mostly Clear | 5 mph S | 3% |
| Friday | 86°F | Sunny | 2 to 8 mph S | 7% |
| Friday Night | 65°F | Slight Chance Showers And Thunderstorms | 3 to 7 mph S | 15% |
| Saturday | 89°F | Sunny | 2 to 10 mph S | 11% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms | 7 to 10 mph SSE | 20% |
| Sunday | 89°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 9 mph SE | 20% |
| Sunday Night | 68°F | Slight Chance Showers And Thunderstorms | 8 mph SSE | 30% |
| Monday | 88°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 7 to 10 mph SE | 30% |
| Monday Night | 68°F | Slight Chance Showers And Thunderstorms | 10 mph ENE | 31% |
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 Aug 4, 2026.