Marble Rock, IA Weather & Growing Conditions
This Afternoon
72°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 3pm, then a chance of showers and thunderstorms. Cloudy. High near 72, with temperatures falling to around 68 in the afternoon. Northwest wind 3 to 8 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 |
|---|---|---|---|---|
| This Afternoon | 72°F | Slight Chance Showers And Thunderstorms | 3 to 8 mph NW | 34% |
| Tonight | 57°F | Chance Showers And Thunderstorms | 8 to 12 mph N | 31% |
| Sunday | 66°F | Cloudy | 14 mph NE | 14% |
| Sunday Night | 50°F | Chance Rain Showers | 12 mph NE | 38% |
| Monday | 62°F | Chance Rain Showers | 13 mph NE | 41% |
| Monday Night | 46°F | Chance Rain Showers | 5 to 9 mph NE | 30% |
| Tuesday | 61°F | Mostly Sunny | 5 to 8 mph NE | 13% |
| Tuesday Night | 43°F | Partly Cloudy | 2 to 6 mph E | 2% |
| Wednesday | 65°F | Sunny | 5 mph E | 1% |
| Wednesday Night | 47°F | Partly Cloudy | 3 mph E | 5% |
| Thursday | 66°F | Partly Sunny | 1 to 5 mph SE | 10% |
| Thursday Night | 50°F | Partly Cloudy | 2 mph E | 4% |
| Friday | 69°F | Mostly Sunny | 1 to 6 mph SE | 4% |
| Friday Night | 51°F | Partly Cloudy | 3 mph SE | 11% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Marble Rock, IA
Last spring frost
Apr 30
First fall frost
Oct 6
Growing season
157 days
Hardiness zone
5a
Explore more for Marble Rock, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Charles City, Ia (12.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.