Preston, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Preston, a city in Jackson County, Iowa.
Today
85°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 4pm. Mostly sunny. High near 85, with temperatures falling to around 82 in the afternoon. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.
7-day forecast for Preston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph SW | 32% |
| Tonight | 65°F | Showers And Thunderstorms Likely | 0 to 5 mph NW | 86% |
| Wednesday | 76°F | Showers And Thunderstorms Likely | 0 to 5 mph N | 69% |
| Wednesday Night | 59°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 5 mph N | 55% |
| Thursday | 80°F | Chance Rain Showers then Mostly Sunny | 0 mph | 28% |
| Thursday Night | 59°F | Mostly Clear | 0 mph | 4% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph S | 5% |
| Friday Night | 64°F | Mostly Clear | 0 mph | 9% |
| Saturday | 85°F | Sunny | 5 mph SW | 12% |
| Saturday Night | 69°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 5 mph S | 21% |
| Sunday | 87°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 21% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms | 5 mph SW | 40% |
| Monday | 86°F | Chance Showers And Thunderstorms | 5 to 10 mph S | 39% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 5 mph N | 40% |
Forecast source: National Weather Service (api.weather.gov) for Preston (42.049, -90.397). Updated through the day.
Growing snapshot for Preston
Last spring frost
Apr 25
First fall frost
Oct 14
Growing season
171 days
Hardiness zone
5a
More local growing data for Preston: nearby ZIP 52069 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Andrew
Baldwin
Bellevue
La Motte
Maquoketa
Miles
Monmouth
Sabula
Spragueville
Springbrook
St. Donatus
Zwingle
Climate data from the nearest NOAA station, Maquoketa, Ia (12.1 mi from Preston). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.