Marne, IA Weather & Growing Conditions
Today
81°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny. High near 81, with temperatures falling to around 78 in the afternoon. North northwest wind 3 to 12 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 81°F | Chance Showers And Thunderstorms | 3 to 12 mph NNW | 29% |
| Tonight | 60°F | Showers And Thunderstorms | 6 to 12 mph NNE | 89% |
| Wednesday | 72°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 41% |
| Wednesday Night | 55°F | Partly Cloudy | 0 to 7 mph ENE | 10% |
| Thursday | 80°F | Sunny | 0 to 6 mph ESE | 1% |
| Thursday Night | 61°F | Mostly Clear | 5 mph SE | 3% |
| Friday | 84°F | Sunny | 3 to 9 mph S | 3% |
| Friday Night | 66°F | Mostly Clear | 7 mph S | 7% |
| Saturday | 89°F | Sunny | 3 to 14 mph S | 4% |
| Saturday Night | 71°F | Mostly Clear | 14 mph S | 10% |
| Sunday | 90°F | Mostly Sunny | 10 to 14 mph SSE | 10% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms | 14 mph SSE | 25% |
| Monday | 90°F | Chance Showers And Thunderstorms then Mostly Sunny | 12 to 15 mph S | 25% |
| Monday Night | 71°F | Chance Showers And Thunderstorms | 9 to 16 mph SE | 25% |
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 Aug 4, 2026.