Red Oak, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Red Oak, a city in Montgomery County, Iowa.
Today
85°F
Partly Sunny then Chance Showers And Thunderstorms
A slight chance of rain showers between 2pm and 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers and thunderstorms likely. Partly sunny. High near 85, with temperatures falling to around 82 in the afternoon. North wind 6 to 12 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Red Oak
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Partly Sunny then Chance Showers And Thunderstorms | 6 to 12 mph N | 63% |
| Tonight | 63°F | Chance Showers And Thunderstorms then Patchy Smoke | 8 to 13 mph NE | 89% |
| Wednesday | 74°F | Showers And Thunderstorms | 10 mph NE | 86% |
| Wednesday Night | 58°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 to 9 mph NE | 36% |
| Thursday | 82°F | Mostly Sunny | 5 mph E | 2% |
| Thursday Night | 63°F | Mostly Clear | 5 mph SE | 12% |
| Friday | 86°F | Mostly Sunny | 5 to 9 mph S | 12% |
| Friday Night | 68°F | Mostly Clear | 7 mph S | 7% |
| Saturday | 91°F | Sunny | 5 to 14 mph S | 1% |
| Saturday Night | 73°F | Mostly Clear | 14 mph S | 9% |
| Sunday | 92°F | Mostly Sunny | 10 to 14 mph S | 9% |
| Sunday Night | 73°F | Slight Chance Showers And Thunderstorms | 15 mph SSE | 17% |
| Monday | 93°F | Mostly Sunny | 13 to 16 mph S | 13% |
| Monday Night | 73°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 12 to 15 mph SSE | 23% |
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 Aug 4, 2026.