Henderson, IA Weather & Growing Conditions
Tonight
69°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 10pm. Mostly cloudy. Low around 69, with temperatures rising to around 71 overnight. South wind 7 to 12 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 69°F | Chance Showers And Thunderstorms | 7 to 12 mph S | 53% |
| Saturday | 80°F | Chance Showers And Thunderstorms | 9 mph NW | 43% |
| Saturday Night | 63°F | Chance Showers And Thunderstorms | 10 mph N | 42% |
| Sunday | 66°F | Chance Rain Showers | 12 mph NNE | 49% |
| Sunday Night | 58°F | Chance Showers And Thunderstorms | 12 mph NE | 49% |
| Monday | 61°F | Chance Rain Showers | 12 mph NE | 54% |
| Monday Night | 54°F | Chance Rain Showers then Mostly Cloudy | 6 to 10 mph NE | 52% |
| Tuesday | 61°F | Mostly Cloudy | 9 mph ENE | 9% |
| Tuesday Night | 50°F | Partly Cloudy | 3 to 7 mph E | 2% |
| Wednesday | 65°F | Mostly Sunny | 6 mph ESE | 5% |
| Wednesday Night | 54°F | Mostly Cloudy | 3 mph ESE | 13% |
| Thursday | 66°F | Chance Rain Showers | 6 mph SE | 29% |
| Thursday Night | 57°F | Slight Chance Rain Showers | 3 mph SE | 21% |
| Friday | 67°F | Slight Chance Rain Showers | 3 to 7 mph SE | 19% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Henderson, IA
Last spring frost
Apr 23
First fall frost
Oct 14
Growing season
174 days
Hardiness zone
5b
Explore more for Henderson, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Oakland, Ia (11.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.