Hamilton, OH Weather & Growing Conditions
Today
86°F
Sunny
Sunny, with a high near 86. Northeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 3 mph NE | 0% |
| Tonight | 64°F | Mostly Clear | 2 mph N | 1% |
| Wednesday | 89°F | Sunny | 0 to 3 mph NW | 11% |
| Wednesday Night | 67°F | Mostly Clear | 2 mph N | 5% |
| Thursday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 7 mph SW | 24% |
| Thursday Night | 69°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 1 to 5 mph SW | 62% |
| Friday | 86°F | Showers And Thunderstorms Likely | 1 to 7 mph SW | 65% |
| Friday Night | 68°F | Showers And Thunderstorms Likely | 0 to 5 mph SW | 65% |
| Saturday | 87°F | Chance Showers And Thunderstorms | 0 to 6 mph SW | 37% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 0 to 3 mph SW | 31% |
| Sunday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 7 mph SW | 15% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms | 1 to 5 mph SW | 15% |
| Monday | 90°F | Slight Chance Showers And Thunderstorms | 2 to 8 mph SW | 22% |
| Monday Night | 71°F | Chance Showers And Thunderstorms | 1 to 6 mph SW | 28% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hamilton, OH
Last spring frost
Apr 22
First fall frost
Oct 18
Growing season
178 days
Hardiness zone
6b
Explore more for Hamilton, OH: full frost dates · planting calendar · Ohio frost dates
Climate data from the nearest NOAA station, Hamilton Butler Co Rgnl Ap, Oh (2.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.