Charles City, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Charles City, a city in Floyd County, Iowa.
Overnight
56°F
Patchy Fog
Patchy fog and a slight chance of showers and thunderstorms. Cloudy. Low around 56, with temperatures rising to around 58 overnight. Northeast wind 10 to 14 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Charles City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Patchy Fog | 10 to 14 mph NE | 17% |
| Sunday | 66°F | Slight Chance Rain Showers then Mostly Cloudy | 14 to 17 mph NE | 17% |
| Sunday Night | 51°F | Chance Rain Showers | 14 mph NE | 43% |
| Monday | 59°F | Chance Rain Showers | 14 mph NE | 40% |
| Monday Night | 45°F | Chance Rain Showers | 7 to 12 mph NE | 28% |
| Tuesday | 60°F | Mostly Sunny | 9 mph NE | 9% |
| Tuesday Night | 44°F | Partly Cloudy | 6 mph NE | 1% |
| Wednesday | 64°F | Mostly Sunny | 6 mph E | 0% |
| Wednesday Night | 48°F | Partly Cloudy | 5 mph E | 6% |
| Thursday | 66°F | Partly Sunny | 5 mph SE | 15% |
| Thursday Night | 52°F | Mostly Cloudy | 3 mph SE | 19% |
| Friday | 69°F | Partly Sunny | 5 mph E | 13% |
| Friday Night | 54°F | Mostly Cloudy | 3 mph SE | 6% |
| Saturday | 69°F | Slight Chance Rain Showers | 3 to 8 mph SE | 22% |
Forecast source: National Weather Service (api.weather.gov) for Charles City (43.065, -92.674). Updated through the day.
Growing snapshot for Charles City
Last spring frost
Apr 30
First fall frost
Oct 6
Growing season
157 days
Hardiness zone
5a
More local growing data for Charles City: nearby ZIP 50616 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Charles City, Ia (1.5 mi from Charles City). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.