Ralston, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ralston, a city in Carroll County, Iowa.
This Afternoon
60°F
Rain Showers Likely
Rain showers likely. Cloudy. High near 60, with temperatures falling to around 55 in the afternoon. North wind around 12 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Ralston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 60°F | Rain Showers Likely | 12 mph N | 71% |
| Tonight | 43°F | Rain Showers | 12 mph NW | 88% |
| Wednesday | 50°F | Chance Rain Showers | 10 to 14 mph W | 31% |
| Wednesday Night | 41°F | Cloudy then Rain Showers Likely | 9 mph WNW | 56% |
| Thursday | 51°F | Chance Rain Showers | 9 mph NW | 54% |
| Thursday Night | 37°F | Mostly Cloudy | 3 to 7 mph N | 9% |
| Friday | 52°F | Partly Sunny | 3 mph N | 2% |
| Friday Night | 33°F | Mostly Cloudy | 1 mph NW | 0% |
| Saturday | 57°F | Mostly Sunny | 0 to 3 mph SW | 1% |
| Saturday Night | 37°F | Mostly Clear | 3 mph W | 4% |
| Sunday | 62°F | Sunny | 5 mph W | 6% |
| Sunday Night | 40°F | Mostly Clear | 5 mph SW | 1% |
| Monday | 65°F | Sunny | 5 to 8 mph WSW | 0% |
| Monday Night | 41°F | Mostly Clear | 5 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Ralston (42.042, -94.629). Updated through the day.
Growing snapshot for Ralston
Last spring frost
Apr 27
First fall frost
Oct 10
Growing season
166 days
Hardiness zone
5a
More local growing data for Ralston: nearby ZIP 51459 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Carroll, Ia (11 mi from Ralston). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.