Parnell, IA Weather & Growing Conditions
Overnight
68°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 3am, then showers and thunderstorms likely. Mostly cloudy. Low around 68, with temperatures rising to around 70 overnight. Southeast wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 68°F | Chance Showers And Thunderstorms | 10 mph SE | 66% |
| Saturday | 82°F | Showers And Thunderstorms Likely | 5 to 10 mph S | 73% |
| Saturday Night | 63°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 10 mph N | 78% |
| Sunday | 69°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 74% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely | 15 mph NE | 62% |
| Monday | 62°F | Rain Showers Likely | 15 mph NE | 58% |
| Monday Night | 52°F | Rain Showers Likely | 10 to 15 mph NE | 58% |
| Tuesday | 61°F | Slight Chance Rain Showers then Mostly Cloudy | 10 mph NE | 23% |
| Tuesday Night | 48°F | Partly Cloudy | 5 to 10 mph NE | 8% |
| Wednesday | 65°F | Mostly Sunny | 5 mph NE | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 5 mph NE | 3% |
| Thursday | 68°F | Partly Sunny | 5 mph NE | 11% |
| Thursday Night | 54°F | Partly Cloudy | 0 to 5 mph E | 8% |
| Friday | 68°F | Mostly Sunny | 5 mph NE | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Parnell, IA
Last spring frost
Apr 28
First fall frost
Oct 9
Growing season
164 days
Hardiness zone
5b
Explore more for Parnell, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Williamsburg 1E, Ia (6.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.