Iowa City, IA Weather & Growing Conditions
Today
83°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 83. South wind 5 to 10 mph. Chance of precipitation is 60%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Showers And Thunderstorms Likely | 5 to 10 mph S | 62% |
| Tonight | 64°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 10 mph NW | 85% |
| Sunday | 70°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 67% |
| Sunday Night | 58°F | Chance Rain Showers | 10 to 15 mph NE | 54% |
| Monday | 64°F | Rain Showers Likely | 15 mph NE | 56% |
| Monday Night | 52°F | Chance Rain Showers | 10 to 15 mph NE | 42% |
| Tuesday | 62°F | Chance Rain Showers | 10 mph NE | 26% |
| Tuesday Night | 47°F | Mostly Clear | 5 to 10 mph NE | 6% |
| Wednesday | 67°F | Sunny | 5 mph NE | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Thursday | 68°F | Mostly Sunny | 0 to 5 mph NE | 6% |
| Thursday Night | 55°F | Partly Cloudy | 0 to 5 mph NE | 5% |
| Friday | 71°F | Mostly Sunny | 0 to 5 mph E | 5% |
| Friday Night | 55°F | Partly Cloudy | 0 to 5 mph E | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Iowa City, IA
Last spring frost
Apr 29
First fall frost
Oct 9
Growing season
162 days
Hardiness zone
5b
Explore more for Iowa City, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Iowa City, Ia (1.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.