Iatan, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Iatan, a village in Buchanan County, Missouri.
Tonight
45°F
Patchy Drizzle
Patchy drizzle before 1am. Cloudy, with a low around 45. West northwest wind around 12 mph.
7-day forecast for Iatan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 45°F | Patchy Drizzle | 12 mph WNW | 12% |
| Wednesday | 56°F | Mostly Cloudy | 8 to 12 mph W | 1% |
| Wednesday Night | 40°F | Mostly Clear | 6 mph W | 1% |
| Thursday | 55°F | Mostly Sunny | 6 to 9 mph NW | 0% |
| Thursday Night | 41°F | Mostly Cloudy | 6 mph NNW | 2% |
| Friday | 54°F | Partly Sunny | 6 mph N | 1% |
| Friday Night | 34°F | Mostly Cloudy | 2 mph NNE | 0% |
| Saturday | 55°F | Mostly Sunny | 2 mph S | 0% |
| Saturday Night | 36°F | Mostly Clear | 2 mph WSW | 0% |
| Sunday | 61°F | Sunny | 3 mph W | 0% |
| Sunday Night | 38°F | Clear | 3 mph SW | 0% |
| Monday | 67°F | Sunny | 3 to 7 mph SSW | 0% |
| Monday Night | 42°F | Mostly Clear | 5 mph WSW | 0% |
| Tuesday | 67°F | Sunny | 5 mph N | 0% |
Forecast source: National Weather Service (api.weather.gov) for Iatan (39.479, -94.985). Updated through the day.
Growing snapshot for Iatan
Last spring frost
Apr 11
First fall frost
Oct 29
Growing season
199 days
Hardiness zone
6a
More local growing data for Iatan: nearby ZIP 64484 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Atchison, Ks (5.1 mi from Iatan). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.