Fontanelle, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fontanelle, a city in Adair County, Iowa.
Overnight
43°F
Cloudy
Cloudy. Low around 43, with temperatures rising to around 45 overnight. West northwest wind around 13 mph, with gusts as high as 20 mph.
7-day forecast for Fontanelle
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Cloudy | 13 mph WNW | 14% |
| Wednesday | 50°F | Slight Chance Rain Showers then Cloudy | 14 to 17 mph W | 15% |
| Wednesday Night | 42°F | Mostly Cloudy then Chance Rain Showers | 13 mph W | 28% |
| Thursday | 51°F | Chance Rain Showers then Mostly Cloudy | 12 mph NW | 34% |
| Thursday Night | 38°F | Mostly Cloudy | 6 to 9 mph N | 7% |
| Friday | 50°F | Partly Sunny | 2 to 6 mph N | 1% |
| Friday Night | 30°F | Partly Cloudy | 2 mph NE | 0% |
| Saturday | 52°F | Mostly Sunny | 1 to 5 mph SSW | 0% |
| Saturday Night | 35°F | Mostly Clear | 5 mph WSW | 0% |
| Sunday | 59°F | Sunny | 6 mph W | 0% |
| Sunday Night | 38°F | Clear | 5 mph SW | 0% |
| Monday | 64°F | Sunny | 6 to 12 mph SW | 0% |
| Monday Night | 41°F | Mostly Clear | 6 mph WNW | 0% |
| Tuesday | 64°F | Sunny | 5 mph NNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Fontanelle (41.290, -94.560). Updated through the day.
Growing snapshot for Fontanelle
Last spring frost
Apr 25
First fall frost
Oct 12
Growing season
170 days
Hardiness zone
5b
More local growing data for Fontanelle: nearby ZIP 50846 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Greenfield, Ia (6.9 mi from Fontanelle). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.