Montezuma, IA Weather & Growing Conditions
Today
81°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 4pm, then a chance of showers and thunderstorms. Partly sunny. High near 81, with temperatures falling to around 79 in the afternoon. South southwest wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Showers And Thunderstorms Likely | 8 mph SSW | 55% |
| Tonight | 62°F | Showers And Thunderstorms Likely | 5 to 8 mph NNW | 60% |
| Sunday | 67°F | Chance Rain Showers | 9 to 13 mph NNE | 57% |
| Sunday Night | 56°F | Showers And Thunderstorms Likely | 13 mph NE | 56% |
| Monday | 61°F | Rain Showers Likely | 13 mph NE | 56% |
| Monday Night | 50°F | Rain Showers Likely | 10 mph NE | 56% |
| Tuesday | 60°F | Chance Rain Showers then Partly Sunny | 9 mph NE | 29% |
| Tuesday Night | 46°F | Mostly Clear | 3 to 7 mph NE | 4% |
| Wednesday | 64°F | Sunny | 6 mph NE | 1% |
| Wednesday Night | 50°F | Partly Cloudy | 3 mph ENE | 3% |
| Thursday | 66°F | Partly Sunny | 3 mph E | 10% |
| Thursday Night | 54°F | Partly Cloudy | 2 mph E | 6% |
| Friday | 68°F | Partly Sunny | 5 mph E | 6% |
| Friday Night | 54°F | Partly Cloudy | 3 mph E | 9% |
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 Sep 19, 2026.