Shannon City, IA Weather & Growing Conditions
Overnight
45°F
Cloudy
Cloudy, with a low around 45. West northwest wind around 14 mph, with gusts as high as 22 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 45°F | Cloudy | 14 mph WNW | 13% |
| Wednesday | 52°F | Mostly Cloudy | 13 to 16 mph W | 8% |
| Wednesday Night | 42°F | Mostly Cloudy then Slight Chance Rain Showers | 12 mph W | 17% |
| Thursday | 52°F | Chance Rain Showers then Mostly Cloudy | 12 mph NW | 28% |
| Thursday Night | 40°F | Mostly Cloudy | 9 mph N | 7% |
| Friday | 50°F | Partly Sunny | 5 to 8 mph N | 3% |
| Friday Night | 31°F | Partly Cloudy | 3 mph ENE | 0% |
| Saturday | 53°F | Mostly Sunny | 3 mph SSW | 0% |
| Saturday Night | 35°F | Mostly Clear | 5 mph W | 0% |
| Sunday | 59°F | Sunny | 6 mph W | 0% |
| Sunday Night | 38°F | Clear | 6 mph SW | 0% |
| Monday | 64°F | Sunny | 6 to 10 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 6 mph WNW | 0% |
| Tuesday | 64°F | Sunny | 5 mph N | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Shannon City, IA
Last spring frost
Apr 28
First fall frost
Oct 11
Growing season
164 days
Hardiness zone
5b
Explore more for Shannon City, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Creston 2 Sw, Ia (11.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.