Farmington, IA Weather & Growing Conditions
Overnight
51°F
Mostly Cloudy
Mostly cloudy. Low around 51, with temperatures rising to around 53 overnight. Southwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Mostly Cloudy | 5 mph SW | 9% |
| Wednesday | 53°F | Slight Chance Rain Showers then Mostly Cloudy | 5 mph W | 15% |
| Wednesday Night | 46°F | Mostly Cloudy | 5 mph SW | 3% |
| Thursday | 55°F | Chance Rain Showers | 5 mph W | 40% |
| Thursday Night | 44°F | Slight Chance Rain Showers then Mostly Cloudy | 0 to 5 mph NW | 21% |
| Friday | 49°F | Partly Sunny | 0 to 5 mph N | 2% |
| Friday Night | 32°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 52°F | Mostly Sunny | 0 mph | 0% |
| Saturday Night | 35°F | Mostly Clear | 0 mph | 1% |
| Sunday | 59°F | Sunny | 0 to 5 mph W | 1% |
| Sunday Night | 37°F | Clear | 0 mph | 0% |
| Monday | 64°F | Sunny | 0 to 5 mph SW | 0% |
| Monday Night | 42°F | Clear | 0 to 5 mph W | 0% |
| Tuesday | 64°F | Sunny | 0 mph | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Farmington, IA
Last spring frost
Apr 17
First fall frost
Oct 22
Growing season
187 days
Hardiness zone
6a
Explore more for Farmington, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Donnellson, Ia (8.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.