Red Oak, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Red Oak, a city in Montgomery County, Iowa.
Tonight
43°F
Cloudy
Cloudy. Low around 43, with temperatures rising to around 45 overnight. Northwest wind around 16 mph, with gusts as high as 26 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Red Oak
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 43°F | Cloudy | 16 mph NW | 10% |
| Wednesday | 52°F | Slight Chance Rain Showers then Mostly Cloudy | 12 to 15 mph WNW | 16% |
| Wednesday Night | 41°F | Mostly Cloudy then Slight Chance Rain Showers | 10 mph W | 17% |
| Thursday | 53°F | Slight Chance Rain Showers then Mostly Cloudy | 9 to 13 mph NW | 24% |
| Thursday Night | 39°F | Mostly Cloudy | 5 to 9 mph NNW | 3% |
| Friday | 52°F | Partly Sunny | 6 mph N | 2% |
| Friday Night | 32°F | Partly Cloudy | 2 mph E | 0% |
| Saturday | 54°F | Mostly Sunny | 1 to 6 mph S | 0% |
| Saturday Night | 36°F | Mostly Clear | 3 mph WSW | 0% |
| Sunday | 60°F | Sunny | 2 to 6 mph WSW | 0% |
| Sunday Night | 39°F | Mostly Clear | 5 mph SSW | 0% |
| Monday | 66°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 6 mph WNW | 0% |
| Tuesday | 65°F | Mostly Sunny | 6 mph N | 0% |
Forecast source: National Weather Service (api.weather.gov) for Red Oak (41.014, -95.224). Updated through the day.
Growing snapshot for Red Oak
Last spring frost
Apr 24
First fall frost
Oct 13
Growing season
169 days
Hardiness zone
5b
More local growing data for Red Oak: nearby ZIP 51566 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Red Oak, Ia (1 mi from Red Oak). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.