Marble Rock, IA Weather & Growing Conditions
Today
74°F
Scattered Rain Showers then Isolated Showers And Thunderstorms
Scattered rain showers before 1pm, then isolated showers and thunderstorms between 2pm and 3pm, then scattered showers and thunderstorms between 3pm and 4pm, then scattered showers and thunderstorms between 4pm and 5pm, then a chance of showers and thunderstorms. Mostly cloudy. High near 74, with temperatures falling to around 70 in the afternoon. Northwest wind 3 to 9 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Scattered Rain Showers then Isolated Showers And Thunderstorms | 3 to 9 mph NW | 71% |
| Tonight | 58°F | Chance Showers And Thunderstorms | 2 to 7 mph NW | 61% |
| Wednesday | 74°F | Partly Sunny | 5 mph N | 6% |
| Wednesday Night | 53°F | Mostly Clear | 0 to 3 mph NW | 1% |
| Thursday | 79°F | Sunny | 0 to 5 mph S | 1% |
| Thursday Night | 59°F | Mostly Clear | 5 mph S | 1% |
| Friday | 82°F | Sunny | 2 to 12 mph S | 10% |
| Friday Night | 64°F | Mostly Clear | 8 mph S | 14% |
| Saturday | 85°F | Sunny | 5 to 9 mph S | 13% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms | 8 to 12 mph SE | 31% |
| Sunday | 85°F | Chance Showers And Thunderstorms | 10 mph SE | 31% |
| 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). 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 Aug 4, 2026.