La Porte City, IA Weather & Growing Conditions
This Afternoon
77°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy. High near 77, with temperatures falling to around 75 in the afternoon. Southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Showers And Thunderstorms Likely | 5 mph SE | 57% |
| Tonight | 60°F | Chance Showers And Thunderstorms | 6 to 12 mph N | 49% |
| Sunday | 67°F | Chance Rain Showers | 14 mph NE | 46% |
| Sunday Night | 54°F | Slight Chance Drizzle then Chance Rain Showers | 13 mph ENE | 43% |
| Monday | 61°F | Rain Showers Likely | 14 mph ENE | 67% |
| Monday Night | 50°F | Rain Showers Likely | 12 mph NE | 67% |
| Tuesday | 61°F | Chance Rain Showers then Partly Sunny | 10 mph NE | 35% |
| Tuesday Night | 47°F | Partly Cloudy | 5 to 8 mph NE | 4% |
| Wednesday | 65°F | Mostly Sunny | 7 mph ENE | 1% |
| Wednesday Night | 51°F | Partly Cloudy | 2 to 6 mph E | 2% |
| Thursday | 66°F | Partly Sunny | 5 mph ESE | 11% |
| Thursday Night | 55°F | Slight Chance Rain Showers | 3 mph E | 22% |
| Friday | 70°F | Slight Chance Rain Showers then Partly Sunny | 5 mph E | 18% |
| Friday Night | 56°F | Partly Cloudy | 3 mph E | 11% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for La Porte City, IA
Last spring frost
May 3
First fall frost
Oct 3
Growing season
151 days
Hardiness zone
5a
Explore more for La Porte City, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Vinton, Ia (14.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.