Henderson, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Henderson, a city in Mills County, Iowa.
Tonight
43°F
Chance Rain Showers then Cloudy
A chance of rain showers before 11pm. Cloudy. Low around 43, with temperatures rising to around 45 overnight. Northwest wind 16 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Henderson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 43°F | Chance Rain Showers then Cloudy | 16 to 20 mph NW | 54% |
| Wednesday | 51°F | Slight Chance Rain Showers then Mostly Cloudy | 13 to 16 mph WNW | 17% |
| Wednesday Night | 41°F | Mostly Cloudy then Slight Chance Rain Showers | 12 mph WNW | 22% |
| Thursday | 52°F | Chance Rain Showers | 13 mph NW | 36% |
| Thursday Night | 38°F | Mostly Cloudy | 6 to 9 mph NNW | 5% |
| Friday | 53°F | Partly Sunny | 2 to 6 mph N | 2% |
| Friday Night | 35°F | Mostly Cloudy | 2 mph ESE | 0% |
| Saturday | 58°F | Mostly Sunny | 2 to 7 mph SW | 2% |
| Saturday Night | 38°F | Mostly Clear | 3 mph W | 5% |
| Sunday | 63°F | Sunny | 3 to 7 mph WSW | 4% |
| Sunday Night | 41°F | Mostly Clear | 7 mph SSW | 0% |
| Monday | 66°F | Sunny | 7 to 13 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 7 mph NW | 0% |
| Tuesday | 65°F | Mostly Sunny | 7 mph ENE | 1% |
Forecast source: National Weather Service (api.weather.gov) for Henderson (41.140, -95.430). Updated through the day.
Growing snapshot for Henderson
Last spring frost
Apr 23
First fall frost
Oct 14
Growing season
174 days
Hardiness zone
5b
More local growing data for Henderson: nearby ZIP 51541 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Oakland, Ia (11.5 mi from Henderson). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.