Blencoe, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Blencoe, a city in Monona County, Iowa.
Tonight
65°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy. Low around 65, with temperatures rising to around 68 overnight. West wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Blencoe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 65°F | Chance Showers And Thunderstorms | 6 mph W | 49% |
| Saturday | 74°F | Chance Showers And Thunderstorms | 5 to 10 mph NNW | 38% |
| Saturday Night | 60°F | Slight Chance Rain Showers | 10 mph N | 18% |
| Sunday | 65°F | Chance Rain Showers | 8 to 12 mph NNE | 33% |
| Sunday Night | 56°F | Chance Rain Showers | 6 to 9 mph NE | 54% |
| Monday | 59°F | Showers And Thunderstorms Likely | 9 mph ENE | 65% |
| Monday Night | 51°F | Chance Showers And Thunderstorms then Mostly Cloudy | 3 to 8 mph NE | 39% |
| Tuesday | 61°F | Mostly Cloudy | 3 to 7 mph ENE | 6% |
| Tuesday Night | 49°F | Partly Cloudy | 2 to 6 mph ESE | 1% |
| Wednesday | 65°F | Mostly Sunny | 2 to 6 mph SE | 5% |
| Wednesday Night | 53°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph SE | 22% |
| Thursday | 65°F | Chance Rain Showers | 6 mph SSE | 35% |
| Thursday Night | 55°F | Slight Chance Rain Showers | 3 mph SE | 18% |
| Friday | 67°F | Slight Chance Rain Showers then Partly Sunny | 2 to 7 mph SE | 18% |
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 Sep 19, 2026.