Marne, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marne, a city in Cass County, Iowa.
This Afternoon
61°F
Rain Showers
Rain showers. Cloudy. High near 61, with temperatures falling to around 55 in the afternoon. North northwest wind 15 to 18 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Marne
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 61°F | Rain Showers | 15 to 18 mph NNW | 80% |
| Tonight | 42°F | Rain Showers | 13 to 18 mph NW | 80% |
| Wednesday | 50°F | Slight Chance Rain Showers | 14 to 17 mph WNW | 21% |
| Wednesday Night | 40°F | Mostly Cloudy then Chance Rain Showers | 8 to 13 mph W | 28% |
| Thursday | 51°F | Chance Rain Showers | 12 mph NW | 54% |
| Thursday Night | 37°F | Mostly Cloudy | 3 to 8 mph N | 6% |
| Friday | 52°F | Partly Sunny | 5 mph N | 2% |
| Friday Night | 33°F | Mostly Cloudy | 1 mph N | 0% |
| Saturday | 57°F | Mostly Sunny | 1 to 6 mph SW | 2% |
| Saturday Night | 36°F | Mostly Clear | 2 mph W | 5% |
| Sunday | 61°F | Sunny | 2 to 6 mph WSW | 5% |
| Sunday Night | 39°F | Mostly Clear | 6 mph SSW | 0% |
| Monday | 64°F | Sunny | 6 to 12 mph WSW | 0% |
| Monday Night | 41°F | Mostly Clear | 2 to 6 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Marne (41.449, -95.111). Updated through the day.
Growing snapshot for Marne
Last spring frost
Apr 30
First fall frost
Oct 2
Growing season
153 days
Hardiness zone
5b
More local growing data for Marne: nearby ZIP 51552 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Atlantic 1 Ne, Ia (7.4 mi from Marne). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.