Rowan, IA Weather & Growing Conditions
Tonight
44°F
Rain Showers
Rain showers. Cloudy. Low around 44, with temperatures rising to around 47 overnight. Northwest wind 9 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 44°F | Rain Showers | 9 to 14 mph NW | 91% |
| Wednesday | 50°F | Rain Showers Likely | 12 to 18 mph W | 64% |
| Wednesday Night | 40°F | Rain Showers Likely | 10 to 14 mph W | 70% |
| Thursday | 50°F | Rain Showers Likely | 10 to 14 mph NNW | 62% |
| Thursday Night | 36°F | Slight Chance Rain Showers then Mostly Cloudy | 6 to 10 mph N | 20% |
| Friday | 49°F | Partly Sunny | 3 to 7 mph NNE | 4% |
| Friday Night | 30°F | Partly Cloudy | 1 mph NNE | 1% |
| Saturday | 54°F | Mostly Sunny | 1 to 6 mph WSW | 2% |
| Saturday Night | 35°F | Partly Cloudy | 5 mph W | 3% |
| Sunday | 59°F | Sunny | 3 to 7 mph W | 7% |
| Sunday Night | 37°F | Mostly Clear | 6 mph SW | 2% |
| Monday | 62°F | Sunny | 6 to 12 mph WSW | 0% |
| Monday Night | 39°F | Mostly Clear | 6 mph WNW | 0% |
| Tuesday | 60°F | Mostly Sunny | 7 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Rowan, IA
Last spring frost
Apr 30
First fall frost
Oct 10
Growing season
162 days
Hardiness zone
5a
Explore more for Rowan, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Clarion, Ia (9.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.