Montour, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Montour, a city in Tama County, Iowa.
Today
82°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 8am. Mostly cloudy. High near 82, with temperatures falling to around 79 in the afternoon. West southwest wind 5 to 8 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Montour
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Chance Showers And Thunderstorms | 5 to 8 mph WSW | 31% |
| Tonight | 61°F | Showers And Thunderstorms | 6 to 9 mph NNE | 78% |
| Wednesday | 75°F | Showers And Thunderstorms Likely | 6 mph NNE | 65% |
| Wednesday Night | 55°F | Chance Rain Showers | 3 mph NNE | 34% |
| Thursday | 81°F | Sunny | 2 mph ENE | 3% |
| Thursday Night | 59°F | Mostly Clear | 2 mph SE | 0% |
| Friday | 83°F | Sunny | 1 to 6 mph SSE | 5% |
| Friday Night | 64°F | Mostly Clear | 5 mph SSE | 12% |
| Saturday | 87°F | Sunny | 2 to 7 mph S | 10% |
| Saturday Night | 70°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 9 mph SSW | 16% |
| Sunday | 88°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 9 mph S | 16% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms | 8 mph SSE | 34% |
| Monday | 87°F | Chance Showers And Thunderstorms | 6 to 10 mph S | 34% |
| Monday Night | 69°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 10 mph E | 29% |
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 Aug 4, 2026.