Blencoe, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Blencoe, a city in Monona County, Iowa.
Overnight
40°F
Slight Chance Rain Showers
A slight chance of rain showers after 5am. Cloudy. Low around 40, with temperatures rising to around 43 overnight. Northwest wind around 16 mph, with gusts as high as 26 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Blencoe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 40°F | Slight Chance Rain Showers | 16 mph NW | 15% |
| Wednesday | 49°F | Chance Rain Showers | 15 mph WNW | 33% |
| Wednesday Night | 39°F | Chance Rain Showers | 12 mph NW | 28% |
| Thursday | 50°F | Mostly Cloudy | 10 to 14 mph NNW | 13% |
| Thursday Night | 34°F | Mostly Cloudy | 3 to 8 mph N | 0% |
| Friday | 50°F | Mostly Sunny | 0 to 3 mph N | 1% |
| Friday Night | 31°F | Partly Cloudy | 2 mph SE | 0% |
| Saturday | 55°F | Mostly Sunny | 2 to 6 mph SSW | 0% |
| Saturday Night | 35°F | Mostly Clear | 3 mph WSW | 0% |
| Sunday | 60°F | Sunny | 5 mph WSW | 0% |
| Sunday Night | 38°F | Clear | 6 mph S | 0% |
| Monday | 64°F | Sunny | 8 mph SW | 0% |
| Monday Night | 39°F | Mostly Clear | 1 to 5 mph NW | 0% |
| Tuesday | 63°F | Mostly Sunny | 1 to 5 mph NNW | 0% |
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.