Marne, IA Weather & Growing Conditions
Tonight
41°F
Rain Showers Likely
Rain showers likely before 2am. Cloudy. Low around 41, with temperatures rising to around 43 overnight. Northwest wind 13 to 20 mph, with gusts as high as 28 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 |
|---|---|---|---|---|
| Tonight | 41°F | Rain Showers Likely | 13 to 20 mph NW | 65% |
| Wednesday | 50°F | Slight Chance Rain Showers | 13 to 17 mph WNW | 21% |
| Wednesday Night | 39°F | Mostly Cloudy then Chance Rain Showers | 8 to 13 mph WNW | 29% |
| Thursday | 51°F | Chance Rain Showers | 12 mph NW | 54% |
| Thursday Night | 36°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 | 56°F | Mostly Sunny | 0 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 | 5 mph SSW | 0% |
| Monday | 64°F | Sunny | 5 to 12 mph WSW | 0% |
| Monday Night | 41°F | Mostly Clear | 2 to 6 mph NW | 0% |
| Tuesday | 63°F | Mostly Sunny | 2 to 6 mph NNW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Marne, IA
Last spring frost
Apr 30
First fall frost
Oct 2
Growing season
153 days
Hardiness zone
5b
Explore more for Marne, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Atlantic 1 Ne, Ia (7.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.