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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.

This Afternoon
78°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 4pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 78. Southwest wind 5 to 10 mph. Chance of precipitation is 40%.

7-day forecast for Parnell

WhenTempForecastWindPrecip
This Afternoon 78°F Chance Showers And Thunderstorms 5 to 10 mph SW 36%
Tonight 63°F Chance Showers And Thunderstorms then Showers And Thunderstorms 5 to 10 mph N 86%
Sunday 66°F Rain Showers Likely 10 to 15 mph NE 57%
Sunday Night 56°F Showers And Thunderstorms Likely 10 to 15 mph NE 57%
Monday 60°F Rain Showers 15 mph NE 76%
Monday Night 52°F Rain Showers Likely 10 to 15 mph NE 63%
Tuesday 59°F Chance Rain Showers 10 mph NE 29%
Tuesday Night 48°F Partly Cloudy 5 to 10 mph NE 7%
Wednesday 63°F Mostly Sunny 5 to 10 mph NE 2%
Wednesday Night 51°F Partly Cloudy 5 mph NE 1%
Thursday 65°F Partly Sunny 5 mph E 12%
Thursday Night 56°F Slight Chance Rain Showers 0 to 5 mph E 20%
Friday 68°F Slight Chance Rain Showers 0 to 5 mph E 20%
Friday Night 56°F Mostly Cloudy 5 mph E 12%

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.