Hamilton, OH Weather & Growing Conditions
Overnight
61°F
Showers And Thunderstorms
A chance of rain showers before 4am, then showers and thunderstorms. Mostly cloudy, with a low around 61. Southeast wind 8 to 12 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Showers And Thunderstorms | 8 to 12 mph SE | 78% |
| Wednesday | 69°F | Showers And Thunderstorms | 9 to 14 mph S | 98% |
| Wednesday Night | 49°F | Slight Chance Rain Showers | 3 to 7 mph SW | 22% |
| Thursday | 67°F | Mostly Sunny | 3 to 10 mph SW | 0% |
| Thursday Night | 43°F | Partly Cloudy | 0 to 5 mph W | 1% |
| Friday | 62°F | Partly Sunny | 0 to 7 mph NW | 8% |
| Friday Night | 38°F | Mostly Cloudy | 6 mph NW | 13% |
| Saturday | 57°F | Mostly Sunny | 2 to 6 mph NW | 13% |
| Saturday Night | 34°F | Partly Cloudy | 2 mph NW | 7% |
| Sunday | 59°F | Mostly Sunny | 1 to 8 mph W | 9% |
| Sunday Night | 32°F | Partly Cloudy | 5 mph W | 13% |
| Monday | 61°F | Sunny | 2 to 8 mph W | 13% |
| Monday Night | 36°F | Mostly Clear | 5 mph SW | 11% |
| Tuesday | 65°F | Sunny | 3 to 8 mph W | 3% |
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 Nov 4, 2026.