Marble Rock, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marble Rock, a city in Floyd County, Iowa.
Today
74°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy. High near 74, with temperatures falling to around 70 in the afternoon. Northwest wind 6 to 9 mph. Chance of precipitation is 90%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Marble Rock
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Showers And Thunderstorms | 6 to 9 mph NW | 86% |
| Tonight | 58°F | Showers And Thunderstorms | 3 to 7 mph NW | 85% |
| Wednesday | 74°F | Partly Sunny | 5 mph N | 7% |
| Wednesday Night | 53°F | Mostly Clear | 3 mph NW | 1% |
| Thursday | 78°F | Sunny | 0 to 5 mph S | 1% |
| Thursday Night | 59°F | Mostly Clear | 5 mph S | 1% |
| Friday | 82°F | Sunny | 3 to 12 mph S | 10% |
| Friday Night | 64°F | Mostly Clear | 8 mph S | 13% |
| Saturday | 84°F | Sunny | 5 to 9 mph S | 12% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms | 8 to 12 mph S | 32% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 10 mph SE | 32% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms | 8 mph SE | 33% |
| Monday | 84°F | Chance Showers And Thunderstorms | 10 mph SE | 33% |
| Monday Night | 67°F | Slight Chance Showers And Thunderstorms | 7 to 10 mph NE | 38% |
Forecast source: National Weather Service (api.weather.gov) for Marble Rock (42.965, -92.868). Updated through the day.
Growing snapshot for Marble Rock
Last spring frost
Apr 30
First fall frost
Oct 6
Growing season
157 days
Hardiness zone
5a
More local growing data for Marble Rock: nearby ZIP 50653 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Charles City, Ia (12.5 mi from Marble Rock). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.