Barnes City, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Barnes City, a city in Mahaska County, Iowa.
Today
52°F
Cloudy
Cloudy, with a high near 52. West wind around 15 mph, with gusts as high as 24 mph.
7-day forecast for Barnes City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 52°F | Cloudy | 15 mph W | 12% |
| Tonight | 44°F | Cloudy | 12 mph W | 8% |
| Thursday | 54°F | Rain Showers Likely | 8 to 12 mph WNW | 61% |
| Thursday Night | 39°F | Mostly Cloudy | 8 mph N | 11% |
| Friday | 50°F | Mostly Sunny | 5 to 8 mph N | 2% |
| Friday Night | 29°F | Partly Cloudy | 3 mph N | 0% |
| Saturday | 52°F | Mostly Sunny | 3 mph W | 0% |
| Saturday Night | 34°F | Mostly Clear | 1 to 5 mph W | 1% |
| Sunday | 58°F | Sunny | 6 mph W | 1% |
| Sunday Night | 35°F | Clear | 3 mph WSW | 0% |
| Monday | 64°F | Sunny | 3 to 8 mph SW | 0% |
| Monday Night | 40°F | Clear | 5 mph W | 0% |
| Tuesday | 64°F | Sunny | 3 mph NNW | 0% |
| Tuesday Night | 41°F | Partly Cloudy | 3 mph NE | 1% |
Forecast source: National Weather Service (api.weather.gov) for Barnes City (41.507, -92.470). Updated through the day.
Growing snapshot for Barnes City
Last spring frost
Apr 21
First fall frost
Oct 16
Growing season
176 days
Hardiness zone
5b
More local growing data for Barnes City: nearby ZIP 50027 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Oskaloosa, Ia (14.4 mi from Barnes City). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.