Larchwood, IA Weather & Growing Conditions
Today
71°F
Chance Rain Showers
Patchy smoke before 8am, then a chance of rain showers and patchy smoke. Mostly cloudy, with a high near 71. North northwest wind 5 to 10 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 |
|---|---|---|---|---|
| Today | 71°F | Chance Rain Showers | 5 to 10 mph NNW | 63% |
| Tonight | 53°F | Scattered Rain Showers then Mostly Cloudy | 0 to 5 mph NNW | 35% |
| Wednesday | 76°F | Mostly Sunny | 0 to 5 mph SSE | 1% |
| Wednesday Night | 55°F | Mostly Clear | 5 mph S | 0% |
| Thursday | 81°F | Sunny | 5 to 15 mph S | 0% |
| Thursday Night | 63°F | Mostly Clear | 5 to 15 mph S | 4% |
| Friday | 86°F | Sunny | 5 to 10 mph SSW | 8% |
| Friday Night | 65°F | Mostly Clear | 5 to 10 mph S | 12% |
| Saturday | 88°F | Sunny | 5 to 15 mph S | 5% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 10 to 15 mph ESE | 25% |
| Sunday | 86°F | Mostly Sunny | 10 mph SE | 12% |
| Sunday Night | 68°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 to 15 mph E | 22% |
| Monday | 85°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 10 to 15 mph E | 22% |
| Monday Night | 67°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ENE | 19% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Larchwood, IA
Last spring frost
May 2
First fall frost
Oct 2
Growing season
151 days
Hardiness zone
5a
Explore more for Larchwood, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Canton, Sd (11.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.