Reinbeck, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Reinbeck, a city in Grundy County, Iowa.
Today
52°F
Slight Chance Rain Showers
A slight chance of rain showers before 5pm. Cloudy. High near 52, with temperatures falling to around 50 in the afternoon. West wind around 18 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
7-day forecast for Reinbeck
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 52°F | Slight Chance Rain Showers | 18 mph W | 17% |
| Tonight | 43°F | Chance Rain Showers | 16 mph W | 35% |
| Thursday | 53°F | Chance Rain Showers | 14 mph NW | 48% |
| Thursday Night | 37°F | Slight Chance Rain Showers then Mostly Cloudy | 8 to 13 mph N | 19% |
| Friday | 48°F | Mostly Sunny | 5 to 9 mph N | 4% |
| Friday Night | 28°F | Partly Cloudy | 0 to 3 mph N | 0% |
| Saturday | 51°F | Mostly Sunny | 0 to 6 mph W | 0% |
| Saturday Night | 34°F | Mostly Clear | 6 mph W | 2% |
| Sunday | 57°F | Sunny | 7 mph W | 2% |
| Sunday Night | 35°F | Clear | 5 mph SW | 0% |
| Monday | 62°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 3 to 7 mph W | 0% |
| Tuesday | 62°F | Sunny | 5 mph NW | 0% |
| Tuesday Night | 40°F | Partly Cloudy | 3 mph E | 1% |
Forecast source: National Weather Service (api.weather.gov) for Reinbeck (42.323, -92.594). Updated through the day.
Growing snapshot for Reinbeck
Last spring frost
Apr 29
First fall frost
Oct 9
Growing season
160 days
Hardiness zone
5a
More local growing data for Reinbeck: nearby ZIP 50669 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Grundy Ctr, Ia (7.6 mi from Reinbeck). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.