Rockwell, IA Weather & Growing Conditions
Today
70°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms between 1pm and 5pm, then a slight chance of showers and thunderstorms. Cloudy. High near 70, with temperatures falling to around 67 in the afternoon. Northeast wind 3 to 8 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Chance Showers And Thunderstorms | 3 to 8 mph NE | 41% |
| Tonight | 57°F | Slight Chance Showers And Thunderstorms | 10 mph NNE | 21% |
| Sunday | 65°F | Mostly Cloudy | 14 mph NE | 14% |
| Sunday Night | 51°F | Chance Rain Showers | 12 mph ENE | 28% |
| Monday | 61°F | Chance Rain Showers | 12 mph ENE | 42% |
| Monday Night | 46°F | Chance Rain Showers | 5 to 8 mph ENE | 32% |
| Tuesday | 60°F | Mostly Sunny | 7 mph ENE | 12% |
| Tuesday Night | 42°F | Partly Cloudy | 5 mph E | 1% |
| Wednesday | 64°F | Sunny | 5 mph E | 1% |
| Wednesday Night | 47°F | Partly Cloudy | 2 mph ESE | 6% |
| Thursday | 65°F | Partly Sunny | 3 mph SE | 10% |
| Thursday Night | 50°F | Partly Cloudy | 2 mph ESE | 5% |
| Friday | 68°F | Mostly Sunny | 1 to 5 mph ESE | 5% |
| Friday Night | 51°F | Partly Cloudy | 3 mph SE | 12% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Rockwell, IA
Last spring frost
Apr 29
First fall frost
Oct 7
Growing season
161 days
Hardiness zone
5a
Explore more for Rockwell, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Mason City, Ia (11.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.