Montour, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Montour, a city in Tama County, Iowa.
Overnight
66°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy. Low around 66, with temperatures rising to around 68 overnight. Southeast wind around 8 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Montour
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 66°F | Chance Showers And Thunderstorms | 8 mph SE | 42% |
| Saturday | 81°F | Showers And Thunderstorms Likely | 8 mph SW | 63% |
| Saturday Night | 61°F | Chance Showers And Thunderstorms | 8 mph N | 39% |
| Sunday | 66°F | Chance Rain Showers | 9 to 13 mph NE | 42% |
| Sunday Night | 55°F | Chance Rain Showers | 12 mph NE | 46% |
| Monday | 62°F | Chance Rain Showers | 12 mph NE | 49% |
| Monday Night | 49°F | Chance Rain Showers | 6 to 10 mph NE | 49% |
| Tuesday | 61°F | Slight Chance Rain Showers then Partly Sunny | 8 mph ENE | 24% |
| Tuesday Night | 45°F | Partly Cloudy | 2 to 6 mph ENE | 3% |
| Wednesday | 66°F | Sunny | 5 mph ENE | 1% |
| Wednesday Night | 50°F | Partly Cloudy | 3 mph E | 4% |
| Thursday | 67°F | Partly Sunny | 3 mph E | 11% |
| Thursday Night | 53°F | Mostly Cloudy | 2 mph E | 9% |
| Friday | 69°F | Partly Sunny | 5 mph E | 6% |
Forecast source: National Weather Service (api.weather.gov) for Montour (41.980, -92.715). Updated through the day.
Growing snapshot for Montour
Last spring frost
Apr 30
First fall frost
Oct 9
Growing season
162 days
Hardiness zone
5a
More local growing data for Montour: nearby ZIP 50173 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Toledo 3N, Ia (8.4 mi from Montour). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.