Clinton, IA Weather & Growing Conditions
Today
80°F
Occasional Showers And Thunderstorms then Chance Showers And Thunderstorms
Occasional showers and thunderstorms before 11am, then a chance of showers and thunderstorms between 11am and 4pm, then a chance of showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 80. Southeast wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Occasional Showers And Thunderstorms then Chance Showers And Thunderstorms | 10 mph SE | 80% |
| Tonight | 63°F | Showers And Thunderstorms | 5 to 10 mph NW | 87% |
| Sunday | 69°F | Rain Showers Likely | 10 to 15 mph NE | 66% |
| Sunday Night | 57°F | Chance Rain Showers | 15 mph NE | 38% |
| Monday | 65°F | Chance Rain Showers | 15 mph NE | 51% |
| Monday Night | 52°F | Chance Rain Showers | 10 to 15 mph NE | 41% |
| Tuesday | 63°F | Slight Chance Rain Showers | 10 to 15 mph NE | 20% |
| Tuesday Night | 49°F | Partly Cloudy | 5 to 10 mph NE | 7% |
| Wednesday | 67°F | Mostly Sunny | 5 to 10 mph NE | 2% |
| Wednesday Night | 52°F | Partly Cloudy | 5 mph NE | 1% |
| Thursday | 68°F | Mostly Sunny | 5 mph NE | 6% |
| Thursday Night | 53°F | Partly Cloudy | 5 mph NE | 6% |
| Friday | 71°F | Mostly Sunny | 5 mph NE | 4% |
| Friday Night | 53°F | Partly Cloudy | 5 mph E | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Clinton, IA
Last spring frost
Apr 13
First fall frost
Oct 26
Growing season
195 days
Hardiness zone
5b
Explore more for Clinton, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Fulton L&D #13, Il (5.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.