Cincinnati, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cincinnati, a city in Appanoose County, Iowa.
Today
90°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 5pm. Mostly sunny. High near 90, with temperatures falling to around 88 in the afternoon. West southwest wind around 6 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Cincinnati
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 mph WSW | 20% |
| Tonight | 66°F | Chance Showers And Thunderstorms | 7 mph N | 52% |
| Wednesday | 78°F | Chance Showers And Thunderstorms | 7 mph NE | 87% |
| Wednesday Night | 62°F | Showers And Thunderstorms Likely | 2 to 8 mph NNE | 66% |
| Thursday | 82°F | Chance Showers And Thunderstorms then Mostly Sunny | 3 mph ENE | 42% |
| Thursday Night | 62°F | Mostly Clear | 2 mph E | 3% |
| Friday | 86°F | Sunny | 1 to 5 mph S | 7% |
| Friday Night | 67°F | Mostly Clear | 3 mph S | 14% |
| Saturday | 90°F | Sunny | 3 to 9 mph SSW | 12% |
| Saturday Night | 72°F | Mostly Clear | 10 to 14 mph SSW | 9% |
| Sunday | 92°F | Sunny | 13 to 16 mph SSW | 9% |
| Sunday Night | 72°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 12 to 15 mph SSW | 18% |
| Monday | 92°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 14 to 18 mph SSW | 18% |
| Monday Night | 72°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 13 to 18 mph SSW | 24% |
Forecast source: National Weather Service (api.weather.gov) for Cincinnati (40.631, -92.922). Updated through the day.
Growing snapshot for Cincinnati
Last spring frost
Apr 28
First fall frost
Oct 14
Growing season
168 days
Hardiness zone
5b
More local growing data for Cincinnati: nearby ZIP 52549 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Centerville, Ia (8.3 mi from Cincinnati). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.