Riceville, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Riceville, a city in Howard County, Iowa.
Tonight
55°F
Cloudy then Slight Chance Rain Showers
A slight chance of rain showers between 1am and 5am. Cloudy. Low around 55, with temperatures rising to around 57 overnight. Northeast wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Riceville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Cloudy then Slight Chance Rain Showers | 9 to 13 mph NE | 16% |
| Sunday | 67°F | Mostly Cloudy | 15 mph NE | 12% |
| Sunday Night | 49°F | Mostly Cloudy then Chance Rain Showers | 14 mph NE | 27% |
| Monday | 59°F | Rain Showers Likely | 10 to 14 mph NE | 59% |
| Monday Night | 46°F | Rain Showers Likely | 10 mph NE | 59% |
| Tuesday | 60°F | Partly Sunny | 10 mph E | 9% |
| Tuesday Night | 43°F | Partly Cloudy | 6 mph E | 2% |
| Wednesday | 64°F | Mostly Sunny | 7 mph E | 0% |
| Wednesday Night | 48°F | Partly Cloudy | 5 mph E | 5% |
| Thursday | 65°F | Slight Chance Rain Showers | 6 mph SE | 15% |
| Thursday Night | 52°F | Slight Chance Rain Showers | 3 mph SE | 16% |
| Friday | 69°F | Partly Sunny | 6 mph E | 12% |
| Friday Night | 54°F | Mostly Cloudy | 5 mph SE | 5% |
| Saturday | 69°F | Slight Chance Rain Showers | 5 to 9 mph SE | 22% |
Forecast source: National Weather Service (api.weather.gov) for Riceville (43.362, -92.553). Updated through the day.
Growing snapshot for Riceville
Last spring frost
Apr 30
First fall frost
Oct 9
Growing season
163 days
Hardiness zone
4b
More local growing data for Riceville: nearby ZIP 50466 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Osage, Ia (15.6 mi from Riceville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.