Montezuma, IA Weather & Growing Conditions
Overnight
46°F
Slight Chance Rain Showers
A slight chance of rain showers after 5am. Cloudy. Low around 46, with temperatures rising to around 48 overnight. West southwest wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Slight Chance Rain Showers | 14 mph WSW | 16% |
| Wednesday | 52°F | Slight Chance Rain Showers then Cloudy | 15 mph WSW | 20% |
| Wednesday Night | 44°F | Cloudy | 12 mph W | 9% |
| Thursday | 54°F | Rain Showers Likely | 8 to 12 mph WNW | 59% |
| Thursday Night | 39°F | Mostly Cloudy | 8 mph N | 11% |
| Friday | 49°F | Mostly Sunny | 3 to 8 mph N | 2% |
| Friday Night | 29°F | Partly Cloudy | 2 mph N | 0% |
| Saturday | 51°F | Mostly Sunny | 2 mph W | 0% |
| Saturday Night | 34°F | Mostly Clear | 3 mph W | 1% |
| Sunday | 58°F | Sunny | 5 mph W | 1% |
| Sunday Night | 35°F | Clear | 3 mph WSW | 0% |
| Monday | 64°F | Sunny | 3 to 8 mph SW | 0% |
| Monday Night | 40°F | Clear | 5 mph W | 0% |
| Tuesday | 63°F | Sunny | 3 mph NNW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Montezuma, IA
Last spring frost
May 3
First fall frost
Oct 6
Growing season
155 days
Hardiness zone
5b
Explore more for Montezuma, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Grinnell 3 Sw, Ia (14.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.