Shannon City, IA Weather & Growing Conditions
Overnight
69°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly cloudy. Low around 69, with temperatures rising to around 71 overnight. South southwest wind around 7 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 69°F | Slight Chance Showers And Thunderstorms | 7 mph SSW | 19% |
| Saturday | 82°F | Chance Showers And Thunderstorms | 7 to 10 mph WSW | 42% |
| Saturday Night | 63°F | Showers And Thunderstorms Likely | 8 mph N | 60% |
| Sunday | 66°F | Chance Rain Showers then Chance Showers And Thunderstorms | 8 to 12 mph NNE | 43% |
| Sunday Night | 57°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 12 mph NE | 59% |
| Monday | 59°F | Showers And Thunderstorms Likely | 12 mph NE | 59% |
| Monday Night | 52°F | Chance Rain Showers | 7 to 10 mph NE | 46% |
| Tuesday | 59°F | Partly Sunny | 9 mph NE | 10% |
| Tuesday Night | 46°F | Partly Cloudy | 3 to 7 mph ENE | 7% |
| Wednesday | 62°F | Mostly Sunny | 5 mph ENE | 2% |
| Wednesday Night | 51°F | Partly Cloudy | 3 mph E | 7% |
| Thursday | 65°F | Slight Chance Rain Showers | 5 mph ESE | 24% |
| Thursday Night | 56°F | Mostly Cloudy then Slight Chance Rain Showers | 3 mph ESE | 21% |
| Friday | 66°F | Slight Chance Rain Showers | 6 mph ESE | 21% |
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 Sep 19, 2026.