Farnhamville, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Farnhamville, a city in Calhoun County, Iowa.
Overnight
66°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Cloudy. Low around 66, with temperatures rising to around 68 overnight. South southwest wind around 3 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Farnhamville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 66°F | Chance Showers And Thunderstorms | 3 mph SSW | 52% |
| Saturday | 77°F | Chance Showers And Thunderstorms then Patchy Fog | 3 to 7 mph NW | 45% |
| Saturday Night | 59°F | Slight Chance Rain Showers | 9 mph N | 24% |
| Sunday | 66°F | Chance Drizzle | 12 mph NE | 38% |
| Sunday Night | 55°F | Chance Rain Showers | 8 mph ENE | 53% |
| Monday | 61°F | Rain Showers Likely | 8 mph ENE | 55% |
| Monday Night | 49°F | Chance Rain Showers | 3 to 7 mph ENE | 53% |
| Tuesday | 61°F | Partly Sunny | 5 mph ENE | 9% |
| Tuesday Night | 45°F | Partly Cloudy | 3 mph E | 1% |
| Wednesday | 66°F | Sunny | 2 mph ESE | 1% |
| Wednesday Night | 50°F | Partly Cloudy | 1 mph SE | 9% |
| Thursday | 67°F | Slight Chance Rain Showers | 3 mph SE | 19% |
| Thursday Night | 54°F | Mostly Cloudy | 1 mph ESE | 10% |
| Friday | 69°F | Partly Sunny | 1 to 5 mph ESE | 10% |
Forecast source: National Weather Service (api.weather.gov) for Farnhamville (42.276, -94.408). Updated through the day.
Growing snapshot for Farnhamville
Last spring frost
Apr 26
First fall frost
Oct 10
Growing season
167 days
Hardiness zone
5a
More local growing data for Farnhamville: nearby ZIP 50538 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Rockwell City, Ia (12.8 mi from Farnhamville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.