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Parnell, IA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Parnell, a city in Iowa County, Iowa.

Overnight
68°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 4am, then patchy fog and a chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Southeast wind 5 to 10 mph. Chance of precipitation is 50%.

7-day forecast for Parnell

WhenTempForecastWindPrecip
Overnight 68°F Chance Showers And Thunderstorms 5 to 10 mph SE 53%
Saturday 81°F Patchy Fog 5 to 10 mph S 64%
Saturday Night 63°F Chance Showers And Thunderstorms then Showers And Thunderstorms 5 to 10 mph NW 79%
Sunday 68°F Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms 10 to 15 mph NE 74%
Sunday Night 57°F Rain Showers Likely 15 mph NE 57%
Monday 62°F Rain Showers Likely 15 mph NE 57%
Monday Night 51°F Chance Rain Showers 10 to 15 mph NE 43%
Tuesday 60°F Chance Rain Showers then Partly Sunny 10 mph NE 27%
Tuesday Night 46°F Partly Cloudy 5 to 10 mph NE 5%
Wednesday 65°F Sunny 5 mph NE 0%
Wednesday Night 51°F Partly Cloudy 5 mph NE 1%
Thursday 66°F Partly Sunny 5 mph E 7%
Thursday Night 54°F Partly Cloudy 5 mph E 6%
Friday 69°F Mostly Sunny 5 mph E 7%

Forecast source: National Weather Service (api.weather.gov) for Parnell (41.584, -92.004). Updated through the day.

Growing snapshot for Parnell

Last spring frost
Apr 28
First fall frost
Oct 9
Growing season
164 days
Hardiness zone
5b

More local growing data for Parnell: nearby ZIP 52361 weather · frost dates · planting calendar · Iowa frost dates

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Climate data from the nearest NOAA station, Williamsburg 1E, Ia (1.9 mi from Parnell). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.