Montezuma, IA Weather & Growing Conditions
Today
85°F
Partly Sunny then Showers And Thunderstorms Likely
Showers and thunderstorms likely after noon. Partly sunny. High near 85, with temperatures falling to around 82 in the afternoon. West wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Partly Sunny then Showers And Thunderstorms Likely | 6 mph W | 66% |
| Tonight | 63°F | Showers And Thunderstorms | 6 to 9 mph NNE | 90% |
| Wednesday | 75°F | Showers And Thunderstorms | 3 to 7 mph NNE | 75% |
| Wednesday Night | 57°F | Chance Showers And Thunderstorms | 5 mph NNE | 50% |
| Thursday | 80°F | Sunny | 2 mph ENE | 10% |
| Thursday Night | 59°F | Mostly Clear | 1 mph ESE | 1% |
| Friday | 84°F | Sunny | 1 to 5 mph SE | 5% |
| Friday Night | 65°F | Slight Chance Showers And Thunderstorms | 5 mph SSE | 15% |
| Saturday | 87°F | Sunny then Slight Chance Rain Showers | 6 mph S | 15% |
| Saturday Night | 70°F | Slight Chance Rain Showers then Mostly Clear | 6 to 9 mph S | 15% |
| Sunday | 88°F | Sunny | 10 mph SSW | 14% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms | 8 mph S | 34% |
| Monday | 88°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 7 to 10 mph SSW | 34% |
| Monday Night | 70°F | Slight Chance Showers And Thunderstorms | 10 mph ESE | 30% |
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 Aug 4, 2026.