Henderson, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Henderson, a city in Mills County, Iowa.
Today
82°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 9am, then a slight chance of showers and thunderstorms between 9am and noon, then a chance of showers and thunderstorms. Partly sunny. High near 82, with temperatures falling to around 79 in the afternoon. West southwest wind 5 to 8 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 |
|---|---|---|---|---|
| Today | 82°F | Chance Showers And Thunderstorms | 5 to 8 mph WSW | 52% |
| Tonight | 62°F | Chance Showers And Thunderstorms | 8 to 12 mph N | 58% |
| Sunday | 66°F | Chance Showers And Thunderstorms | 9 to 13 mph NNE | 39% |
| Sunday Night | 57°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 39% |
| Monday | 61°F | Rain Showers Likely | 12 mph NE | 55% |
| Monday Night | 52°F | Chance Rain Showers then Mostly Cloudy | 6 to 10 mph NE | 54% |
| Tuesday | 61°F | Partly Sunny | 6 to 9 mph ENE | 3% |
| Tuesday Night | 47°F | Partly Cloudy | 3 to 7 mph E | 2% |
| Wednesday | 64°F | Mostly Sunny | 6 mph ESE | 2% |
| Wednesday Night | 52°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph ESE | 21% |
| Thursday | 65°F | Chance Rain Showers | 3 to 7 mph SE | 29% |
| Thursday Night | 56°F | Slight Chance Rain Showers | 6 mph ESE | 24% |
| Friday | 67°F | Slight Chance Rain Showers | 5 to 8 mph SE | 24% |
| Friday Night | 57°F | Slight Chance Rain Showers then Mostly Cloudy | 7 mph SE | 15% |
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 Sep 19, 2026.