Fontanelle, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fontanelle, a city in Adair County, Iowa.
Today
83°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 7am. Partly sunny. High near 83, with temperatures falling to around 80 in the afternoon. North northwest wind 3 to 9 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Fontanelle
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Chance Showers And Thunderstorms | 3 to 9 mph NNW | 41% |
| Tonight | 62°F | Showers And Thunderstorms | 7 to 12 mph NE | 89% |
| Wednesday | 72°F | Chance Showers And Thunderstorms | 9 mph NE | 61% |
| Wednesday Night | 57°F | Slight Chance Rain Showers then Partly Cloudy | 2 to 7 mph NE | 21% |
| Thursday | 80°F | Mostly Sunny | 3 mph E | 6% |
| Thursday Night | 62°F | Mostly Clear | 3 mph SE | 5% |
| Friday | 84°F | Sunny | 3 to 8 mph S | 5% |
| Friday Night | 67°F | Mostly Clear | 6 mph S | 9% |
| Saturday | 89°F | Sunny | 5 to 12 mph S | 4% |
| Saturday Night | 72°F | Mostly Clear | 10 to 14 mph S | 10% |
| Sunday | 89°F | Mostly Sunny | 13 mph S | 10% |
| Sunday Night | 72°F | Slight Chance Showers And Thunderstorms | 13 mph SSE | 25% |
| Monday | 90°F | Chance Showers And Thunderstorms then Mostly Sunny | 12 to 15 mph SSW | 25% |
| Monday Night | 72°F | Chance Showers And Thunderstorms | 10 to 15 mph SE | 25% |
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 Aug 4, 2026.