Newhall, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Newhall, a city in Benton County, Iowa.
Tonight
67°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1am, then showers and thunderstorms. Mostly cloudy, with a low around 67. Southeast wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Newhall
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 67°F | Chance Showers And Thunderstorms | 10 mph SE | 76% |
| Saturday | 81°F | Showers And Thunderstorms Likely | 5 to 10 mph SW | 71% |
| Saturday Night | 62°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 10 mph N | 75% |
| Sunday | 68°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 66% |
| Sunday Night | 56°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 57% |
| Monday | 63°F | Rain Showers Likely | 15 mph NE | 57% |
| Monday Night | 51°F | Rain Showers Likely | 10 to 15 mph NE | 57% |
| Tuesday | 61°F | Chance Rain Showers then Mostly Cloudy | 10 mph NE | 31% |
| Tuesday Night | 47°F | Partly Cloudy | 5 mph NE | 6% |
| Wednesday | 66°F | Mostly Sunny | 5 mph NE | 0% |
| Wednesday Night | 51°F | Partly Cloudy | 0 to 5 mph E | 3% |
| Thursday | 68°F | Partly Sunny | 5 mph E | 10% |
| Thursday Night | 54°F | Partly Cloudy | 0 to 5 mph E | 9% |
| Friday | 69°F | Mostly Sunny | 5 mph E | 6% |
Forecast source: National Weather Service (api.weather.gov) for Newhall (41.993, -91.967). Updated through the day.
Growing snapshot for Newhall
Last spring frost
May 3
First fall frost
Oct 3
Growing season
151 days
Hardiness zone
5a
More local growing data for Newhall: nearby ZIP 52315 weather · frost dates · planting calendar · Iowa frost dates
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Urbana
Van Horne
Vinton
Walford
Watkins
Climate data from the nearest NOAA station, Vinton, Ia (11.8 mi from Newhall). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.