Blencoe, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Blencoe, a city in Monona County, Iowa.
Tonight
40°F
Rain Showers
Rain showers. Cloudy. Low around 40, with temperatures rising to around 43 overnight. Northwest wind 15 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Blencoe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 40°F | Rain Showers | 15 to 18 mph NW | 79% |
| Wednesday | 49°F | Chance Rain Showers | 15 mph WNW | 33% |
| Wednesday Night | 39°F | Chance Rain Showers | 12 mph NW | 28% |
| Thursday | 50°F | Chance Rain Showers | 9 to 13 mph NNW | 34% |
| Thursday Night | 35°F | Mostly Cloudy | 3 to 8 mph NNW | 2% |
| Friday | 51°F | Partly Sunny | 3 mph N | 0% |
| Friday Night | 33°F | Mostly Cloudy | 2 mph SE | 0% |
| Saturday | 59°F | Mostly Sunny | 5 mph SW | 3% |
| Saturday Night | 36°F | Mostly Clear | 3 mph W | 5% |
| Sunday | 62°F | Sunny | 2 to 6 mph WSW | 2% |
| Sunday Night | 39°F | Mostly Clear | 6 mph S | 0% |
| Monday | 65°F | Sunny | 6 to 9 mph WSW | 0% |
| Monday Night | 39°F | Mostly Clear | 2 to 6 mph NNW | 0% |
| Tuesday | 63°F | Mostly Sunny | 2 to 6 mph E | 1% |
Forecast source: National Weather Service (api.weather.gov) for Blencoe (41.930, -96.082). Updated through the day.
Growing snapshot for Blencoe
Last spring frost
May 1
First fall frost
Oct 3
Growing season
155 days
Hardiness zone
5a
More local growing data for Blencoe: nearby ZIP 51523 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Little Sioux 2 Nw, Ia (6.2 mi from Blencoe). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.