Henderson, IA Weather & Growing Conditions
Tonight
43°F
Cloudy
Cloudy. Low around 43, with temperatures rising to around 45 overnight. Northwest wind around 18 mph, with gusts as high as 26 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 43°F | Cloudy | 18 mph NW | 12% |
| Wednesday | 51°F | Slight Chance Rain Showers then Mostly Cloudy | 13 to 16 mph WNW | 18% |
| Wednesday Night | 41°F | Mostly Cloudy then Slight Chance Rain Showers | 12 mph WNW | 22% |
| Thursday | 52°F | Slight Chance Rain Showers then Mostly Cloudy | 14 mph NW | 23% |
| Thursday Night | 39°F | Mostly Cloudy | 6 to 10 mph NNW | 2% |
| Friday | 52°F | Mostly Sunny | 2 to 6 mph N | 3% |
| Friday Night | 32°F | Partly Cloudy | 2 mph E | 0% |
| Saturday | 54°F | Mostly Sunny | 2 to 6 mph SSW | 0% |
| Saturday Night | 36°F | Mostly Clear | 3 mph WSW | 0% |
| Sunday | 60°F | Sunny | 3 to 7 mph WSW | 0% |
| Sunday Night | 39°F | Mostly Clear | 6 mph SSW | 0% |
| Monday | 65°F | Sunny | 6 to 10 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 6 mph WNW | 0% |
| Tuesday | 65°F | Mostly Sunny | 6 mph N | 0% |
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 Nov 4, 2026.