Clayton, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clayton, a city in Clayton County, Iowa.
Tonight
62°F
Chance Showers And Thunderstorms then Showers And Thunderstorms
A chance of showers and thunderstorms before midnight, then showers and thunderstorms. Some of the storms could produce heavy rain. Cloudy, with a low around 62. Southeast wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast for Clayton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 62°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 9 to 13 mph SE | 93% |
| Saturday | 74°F | Showers And Thunderstorms | 6 to 9 mph S | 86% |
| Saturday Night | 59°F | Showers And Thunderstorms | 7 to 12 mph N | 86% |
| Sunday | 68°F | Chance Rain Showers | 13 mph NE | 46% |
| Sunday Night | 54°F | Mostly Cloudy | 13 mph NE | 11% |
| Monday | 64°F | Chance Rain Showers | 13 mph NE | 42% |
| Monday Night | 49°F | Chance Rain Showers | 6 to 13 mph NE | 42% |
| Tuesday | 62°F | Chance Rain Showers | 6 to 9 mph NE | 31% |
| Tuesday Night | 46°F | Partly Cloudy | 2 to 7 mph NE | 6% |
| Wednesday | 67°F | Mostly Sunny | 2 to 6 mph NE | 2% |
| Wednesday Night | 50°F | Partly Cloudy | 0 to 3 mph NE | 2% |
| Thursday | 69°F | Partly Sunny | 3 mph NE | 7% |
| Thursday Night | 52°F | Partly Cloudy | 2 mph NE | 6% |
| Friday | 70°F | Mostly Sunny | 0 to 3 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Clayton (42.902, -91.149). Updated through the day.
Growing snapshot for Clayton
Last spring frost
Apr 21
First fall frost
Oct 18
Growing season
178 days
Hardiness zone
5a
More local growing data for Clayton: nearby ZIP 52049 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Colesburg
Edgewood
Elkader
Elkport
Farmersburg
Garber
Garnavillo
Guttenberg
Luana
Marquette
McGregor
North Buena Vista
Osterdock
St. Olaf
Strawberry Point
Volga
Climate data from the nearest NOAA station, Guttenberg L&D 10, Ia (8.7 mi from Clayton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.