Marysville, IA Weather & Growing Conditions
Today
88°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1pm. Mostly sunny. High near 88, with temperatures falling to around 85 in the afternoon. West wind around 7 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 | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 7 mph W | 33% |
| Tonight | 65°F | Showers And Thunderstorms | 6 to 9 mph NNE | 90% |
| Wednesday | 75°F | Showers And Thunderstorms Likely | 7 mph NNE | 93% |
| Wednesday Night | 60°F | Showers And Thunderstorms Likely | 2 to 7 mph NNE | 59% |
| Thursday | 81°F | Chance Rain Showers then Mostly Sunny | 3 mph NE | 27% |
| Thursday Night | 62°F | Mostly Clear | 2 mph ESE | 3% |
| Friday | 86°F | Sunny | 1 to 5 mph SSE | 7% |
| Friday Night | 67°F | Mostly Clear | 5 mph SSE | 14% |
| Saturday | 90°F | Sunny then Slight Chance Rain Showers | 3 to 7 mph SSW | 15% |
| Saturday Night | 72°F | Slight Chance Rain Showers then Mostly Clear | 7 to 10 mph SSW | 15% |
| Sunday | 91°F | Mostly Sunny | 13 mph SSW | 11% |
| Sunday Night | 72°F | Slight Chance Showers And Thunderstorms | 12 mph S | 25% |
| Monday | 91°F | Chance Showers And Thunderstorms then Mostly Sunny | 13 mph SSW | 25% |
| Monday Night | 73°F | Chance Showers And Thunderstorms | 12 mph S | 27% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Marysville, IA
Last spring frost
Apr 20
First fall frost
Oct 19
Growing season
180 days
Hardiness zone
5b
Explore more for Marysville, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Knoxville, Ia (11.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.