Barnes City, IA Weather & Growing Conditions
Tonight
63°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 1am, then showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy. Low around 63, with temperatures rising to around 66 overnight. North wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 63°F | Showers And Thunderstorms Likely | 7 mph N | 78% |
| Sunday | 66°F | Chance Rain Showers then Chance Drizzle | 8 to 13 mph NNE | 47% |
| Sunday Night | 56°F | Chance Drizzle then Rain Showers Likely | 13 mph NE | 55% |
| Monday | 60°F | Rain Showers | 12 mph ENE | 82% |
| Monday Night | 51°F | Rain Showers Likely | 10 mph NE | 65% |
| Tuesday | 60°F | Slight Chance Rain Showers | 9 mph NE | 20% |
| Tuesday Night | 47°F | Partly Cloudy | 7 mph NE | 6% |
| Wednesday | 63°F | Mostly Sunny | 6 mph NE | 1% |
| Wednesday Night | 51°F | Partly Cloudy | 3 mph ENE | 1% |
| Thursday | 66°F | Slight Chance Rain Showers | 3 mph E | 15% |
| Thursday Night | 56°F | Slight Chance Rain Showers | 2 mph E | 21% |
| Friday | 69°F | Slight Chance Rain Showers | 5 mph E | 21% |
| Friday Night | 57°F | Mostly Cloudy | 3 mph E | 9% |
| Saturday | 69°F | Slight Chance Rain Showers | 6 mph ESE | 21% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Barnes City, IA
Last spring frost
Apr 21
First fall frost
Oct 16
Growing season
176 days
Hardiness zone
5b
Explore more for Barnes City, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Oskaloosa, Ia (14.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.