Van Horne, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Van Horne, a city in Benton County, Iowa.
This Afternoon
77°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny, with a high near 77. South wind 5 to 10 mph. Chance of precipitation is 50%.
7-day forecast for Van Horne
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 51% |
| Tonight | 61°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 10 mph N | 60% |
| Sunday | 65°F | Rain Showers Likely | 10 to 15 mph NE | 58% |
| Sunday Night | 55°F | Chance Rain Showers | 10 to 15 mph NE | 48% |
| Monday | 61°F | Rain Showers Likely | 10 to 15 mph NE | 71% |
| Monday Night | 51°F | Rain Showers Likely | 10 mph NE | 71% |
| Tuesday | 60°F | Chance Rain Showers | 10 mph NE | 31% |
| Tuesday Night | 47°F | Partly Cloudy | 5 mph NE | 6% |
| Wednesday | 63°F | Mostly Sunny | 5 mph NE | 1% |
| Wednesday Night | 51°F | Partly Cloudy | 0 to 5 mph E | 2% |
| Thursday | 65°F | Partly Sunny | 5 mph E | 14% |
| Thursday Night | 55°F | Slight Chance Rain Showers | 0 mph | 23% |
| Friday | 69°F | Slight Chance Rain Showers then Mostly Cloudy | 0 to 5 mph E | 19% |
| Friday Night | 56°F | Mostly Cloudy | 0 to 5 mph E | 12% |
Forecast source: National Weather Service (api.weather.gov) for Van Horne (42.008, -92.090). Updated through the day.
Growing snapshot for Van Horne
Last spring frost
May 3
First fall frost
Oct 3
Growing season
151 days
Hardiness zone
5a
More local growing data for Van Horne: nearby ZIP 52346 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
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Blairstown
Dysart
Garrison
Keystone
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Mount Auburn
Newhall
Norway
Shellsburg
Urbana
Vinton
Walford
Watkins
Climate data from the nearest NOAA station, Vinton, Ia (11.5 mi from Van Horne). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.