Red Oak, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Red Oak, a city in Montgomery County, Iowa.
Overnight
71°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 5am, then showers and thunderstorms likely. Mostly cloudy. Low around 71, with temperatures rising to around 73 overnight. South southwest wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Red Oak
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 71°F | Chance Showers And Thunderstorms | 6 mph SSW | 61% |
| Saturday | 84°F | Showers And Thunderstorms Likely | 5 to 8 mph SW | 56% |
| Saturday Night | 62°F | Chance Showers And Thunderstorms | 9 mph N | 65% |
| Sunday | 67°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 42% |
| Sunday Night | 57°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 42% |
| Monday | 61°F | Chance Rain Showers | 12 mph NE | 53% |
| Monday Night | 52°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph NE | 53% |
| Tuesday | 61°F | Partly Sunny | 6 to 9 mph ENE | 3% |
| Tuesday Night | 46°F | Partly Cloudy | 2 to 7 mph E | 2% |
| Wednesday | 65°F | Mostly Sunny | 6 mph ESE | 2% |
| Wednesday Night | 52°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph ESE | 16% |
| Thursday | 66°F | Chance Rain Showers | 3 to 7 mph SE | 28% |
| Thursday Night | 56°F | Slight Chance Rain Showers | 6 mph ESE | 24% |
| Friday | 67°F | Slight Chance Rain Showers | 5 to 8 mph ESE | 24% |
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 Sep 19, 2026.